COLUMBIA LIBRARIES OFFSITE HEALTH SCIENCES STANDARD HX00016020 \<(^'^M US'? y^ Digitized by the Internet Archive in 2010 with funding from Open Knowledge Commons http://www.archive.org/details/textbookofmental1899lewi A TEXT-BOOK MENTAL DISEASES. A TEXT-BOOK OF MENTAL DISEASES: WITH SPECIAL REFERENCE TO THE PATHOLOGICAL ASPECTS OF C^SAl^ITY. BY W. BEVAN LEWIS, L.R.C.P. (LoND.), M.R.C.S. (Eng.), MEDICAL DIRECTOR, WEST RIDING ASYLUM, WAKEFIELD, LECTURER ON MENTAL DISEASES AT THE YORKSHIRE COLLEGE. WITH ILLUSTRATIONS IN THE TEXT, CHARTS, AND EIGHTEEN LITHOGRAPHED PLATES. PHILADELPHIA: P. BLAKISTON, SON & COMPAN-Y, 1012 WALNUT STREET. 1890. SIR JAMES CRICHTON-BROWNE, M.D., LL.D., F.R.SS. (lOND. AND EDIN.), lOED CHANCBtlOE'S VISITOR IN LUNACY, LATE MEDICAL DIRECTOK OF THE WEST BIDING ASTLUK AT WAKEFIELD, 5n B&miratfon of THE VIGOROUS INTELLECT, COMMANDING ELOQUENCE, AND UNTIRING ENERGY BROUGHT TO BEAR ON THE SCIENTIFIC ASPECTS OF PSYCHOLOGICAL MEDICINE DURING HIS DIRECTORATE OF THE WEST RIDING ASYLUM ; anJ) in Ikeen appreciation of HIS WIDE-SPREAD SYMPATHIES AND GENEROUS IMPULSES, ZTbis moth is DeOicateD BT THE AUTHOR. PEEFACE. In writing a new Treatise on Mental Diseases, I have not been blind to the wealth of available literature in this department, nor to the claims upon the Student's attention of such works as the classical Manual of Bucknill & Tuke, the English translation of Griesinger's Treatise, and the admirable Lectures of Dr. Blandford, nor again to the more recent additions to Dr. Bristowe's Clinical Medicine, and the works of Drs. Sankey, Clouston, and Savage. It has, however, been my special object to present a resumS of our knowledge of the structure and connections of the cerebro-spinal nervous system, of the architecture of the cerebral hemispheres, and more especially of the cortical envelope as the essential organ — the material substratum — of Mind ; and to afford a concise account of the morbid changes found in the brain of the insane, as viewed in the light of recent research. It appears to me that a disproportionate amount of attention has been paid in former text-books to the clinical aspects of Insanity, and it is hoped that this attempt to deal more fuUy with the organisation of the material substratum of mind, and with the evidences of morbid change to which it is prone, will not prove unwelcome to the Student of Mental Disease. In the Anatomical Section, I have endeavoured to comprise such information as shall prove of utility to a more thorough conception of the ground-plan and superstructure of the nervous system ; and it will be at once evident that special emphasis has been advisedly bestowed upon the cortical envelope — the structure, nature, and autonomy of the nerve-cell. VUl PREFACE. The Clinical Section comprises statistics based upon an analysis of 4,000 cases of Insanity in both sexes, treated at the West Riding Asylum. In the Pathological Section, I have endeavoured to do justice to certain morbid processes, which appear to me to be of paramount importance in the history of Insanity; and more particularly would I here allude to the functions of the Lymph- connective system of the Brain, and the life-history of the " Scavenger-cell." To my publishers I would desire to express my acknowledg- ments for the consideration uniformly received at their hands, despite the delay which has unavoidably occurred — for the liberal supply of illustrations, so essential to the success of a work of this description, and for the special care taken in their production. I can add my testimony to the admirable faithfulness with which my drawings have been reproduced by Mr. Danielsson. I have also to express my obligations to my colleague, Mr. St. John Bullen, for reference to a compilation of Statistics from the Pathological Records of this Asylum, and for material assistance in the revision of the proof-sheets. West Riding Asylum, Wakefield, November, 1889. GENEEAL CONTENTS. PART I.— ANATOMICAL AND HISTOLOGICAL SECTION. The Spinal Cord — The Medulla Oblongata — The Mesencephalon — The Prosen- cephalon — The Encephalon as a whole — The Cerebral Cortex — Cortical Lamination, Pages 1-114- THE SPINAL CORD. The Cerebro-Spinal Axis— The Central Grey Matter— The White MeduUated Columns — Transverse Section of Cord — Substantia Gelatinosa and Vesicular Columns — Caput Cornu— Sacral Nucleus of Stilling — Anterior Cornu — Inter- medio-lateral Tract of Clarke — Formatio Reticularis — Conducting and Com- missural Tracts — Direct Pyramidal Tract — Crossed or Lateral Pyramidal Tract — Posterior Median Column — Postero-lateral Columns — Direct Cerebellar Tract — Cowers' Antero-lateral Ascending Tract — Anterior Radicular Zone and Lateral Limiting Layer, Pages 1-8 THE MEDULLA OBLONGATA. Region of the Calamus Scriptorius — Clavate and Cuneate Nuclei — Solitary Fasci- culus — Nucleus of Fasciculus Teres — Floor of Fourth Ventricle (lower half) — Hypoglossal and Vago-accessory Nuclei — Ascending Root of Fifth Nerve — Motor, Mixed and Sensory Systems— Restiform Tract — Dentate Nucleus- Inner and Outer Divisions of Cerebellar Peduncles — Roof Nuclei of StilUng — Arcuate Fasciculi— Fillet — Nucleus of Lateral Column — Inferior Olivary Body — Internal and External Accessory Olives— Corpus Trapezoides — Origin of Hypoglossal Nerve — Mixed Lateral System — Spinal Accessory, Vagus and Glosso-Pharyngeal — Upper Half of Medulla — Abducens, Facial and Acoustic Nuclei — Superior and Inferior Olivary — Inferior Facial Nucleus — Nuclei of Acoustic Nerve — Sound-rod of Bergmann — Acoustic Striae — Facial Genu — Ascending Trigeminal Root — Abducens Facialis — Superior Olivary Body — Lemniscus or Fillet— Upper Angle of Fourth Ventricle — Posterior Longitudinal Fasciculus — Nuclei and Root-fibres of Trigeminal — Locus Cceruleus — Nuclei of Oculo-Motor and Trochlearis— Root-fibres of Fourth Nerve, Pages 8-27 THE MESENCEPHALON. Advance in Complexity — Tegmental and Crustal Tracts — Internal Capsule — Corpora Quadrigemina and Thalami — Locus Niger — Knee of Capsule — Posterior Perforated Space — Basal Aspect of Mesencephalon — Tsnia Pontis — X CONTENTS. Corpora Alhicantia — Infundibulum and Pituitary Body — Conducting Tracts of CrustJi— Fundamental, Mixed, and Accessory Systems — Cortical Termination of Tracts — Relationships to Motor Cells of Cortex — Termini of Sensory Columns of Cord — Radiations of Gratiolet — Sensory Peduncular Tract — Constitution of Internal Capsule — Ansa Peduncularis — Substantia Nigra — Fillet or Lemniscus — Pineal Body — Posterior Commissure — Aqueduct — Tegmental Structures— Superior Bigeminal Body or Nates — Its Brachia and Stratum Lemnisci — Red Nucleus — Upper Cerebellar Peduncle — Posterior Longitudinal Fasciculus — Substantia Nigra — Relationships and Connections of Tcgment and Crusta, Pages 27-41 THE THALAMENCEPHALON. External Conformation — Inner and Outer Face of Optic Thalami — Subthalamic Body — Thalamic Peduncles — Fimbria of Fornix — Pillars of Fornix — Cortical Connections of Optic Thalami — Lamina Medullaris of Burdach — Centre Median of Luys — Stratum Zonale — Anterior Tubercle of Thalamus — Pineal Body and its Connections — Fasciculus Retroflexus — Posterior Commissure — Corpora Geniculata, Pages 41-49 THE PROSENCEPHALON. Configuration of Fore-brain — Lenticular and Caudate Nuclei — Lenticular Axis of Revolution — Relationships of the Lenticular and Caudate Nuclei — Head of Caudate Nucleus — Tail of Caudate Nucleus — Amygdaloid Nucleus — The Surcingle — Loop-like Disposition of Ganglia — Stria Terminalis or Taenia Semicircularis — Olfactory Area — External Conformation of the Lenticular Nucleus — The Claustrum and Insula — Globus Pallidus — Lamina MeduUares of Lenticular Nucleus, . Pages 49-55 THE ENCEPHALON AS A WHOLE. Comparative and Embryological — The Neural Tube in Amphioxus and in the Lamprey — The Brain in Fishes and Ampliibia — The Five Vesicles of the Neural Tube — The Cerebral Hemispheres in Fishes — Hypoaria — Predomin- ance of Optic Lobes in Insects — The Reptilian Brain — The Brain in Birds — Development of Neural Canal — Vesicles of the Fore-brain — Olfactory Lobe — Foramen of Monro — Ganglia of Fore-brain — Pituitary Body — The Neuro- enteric Canal — Vesicle of ]\Iid-brain — Formation of Quadrigeminal Bodies and Crura — The Iter — Vesicle of Hind-brain — The Cranial Flexures — Forma- tion of Fissures, Pages 55-60 THE CEREBRAL CORTEX. Methods of Enquiry — The Grey Matter the Tissue of Mind — Histological Elements of the Cortex — Nerve-cells — Angular Cell — Its Development in the Pig, Sheep, Rat, and Pvabbit — P^elatively Large Nucleus — Granule Cell — Pyramidal Cell — Apex, Basal, and Secondary Processes — The Motor Cell — Giant Pyramids of Betz — Primary and Secondarj' Branches — Type of Cell in Man, &c. — Inflated or Irregularly Globose Cell — Its Restricted Distribution in Rodents CONTENTS. XI — The Spindle Cell — CLaustral Formation — Nerve-fibres of Cortex — The Primitive Fibril — Non-Medullated Fibres — Axis-cylinder Process — Medul- lated Nerve-fibre— Myelin Sheath — Keratoid Sheath — Fromann's Lines — Lantermann's Dissepiments — Centric and Peripheric Fibres — Staining of Axis- cylinder — Arteries of the Cortex — Intima — Tunica Media — Tunica Adventitia — Perivascular Channel of His — The Capillaries of the Cortex — Stigmata and Stomata — The Veins of the Cortex — The Connective Matrix or Neuroglia — Local Varieties — Cellular Elements of Neuroglia — Lymphatic System of the Brain — The Perivascular Channels and Lymph Channels Proper — Epicerebral Space — Pericellular Sacs — Cells of Adventitial Tunic — A Description of the Lymph System— The Lymph -connective Elements or Scavenger-cells — Vascular Process of Scavenger-cell — Role of Spider- or Scavenger-cells, . Pages 60-85 CORTICAL LAMINATION. Laminated Structure of Cortex— Cerebral Hemisphere in the Rodent — Eight Types of Cortex — Transition Regions in Man — Distribution of the several Types — Upper Limbic Type — Modified Upper Limbic Type — Outer Olfactory Type— Inner Olfactory Type — Modified Lower Limbic Type — Extra-limbic Type — Type of Cornu Ammonis— Type of Olfactory Bulb — Diversities of Cortical Lamination — Regional Distribution of Ganglionic Cells in Cortex — The Clustered and Solitary Arrangements — Distribution in the Pig, Sheep, Cat, Ape, &c. — Significance of Fissures and Sulci — Fissures defining Distinct Cortical Types — Contrasts between Brain of Man and Lower Mammals — Lamination of Motor Area in Man — Five-laminated Cortex — Histological Structure of the Several Layers of Motor Cortex — Distribution of Motor-cell Groups — Transition-realms of Cortex — Specialised Areas — Acquirement of Structural Variations — Significance of Cell-groupings — Comparative Size of Brain-Cells — The Nucleus of the Nerve-cell and its R6le — Electrical Excita- bility of Cortex — Latent Period of Stimulation and the Summation of Stimuli — Conditions Affecting Excitability — Functional Equivalence of Cortex — Faradic Stimulation of Cortex- — Extra-polar Conduction — Conduction to Lower Centres — Proximity of Psycho-motor Centres, . . Pages 85-114 PART II.— CLINICAL SECTION. States of Depression — States of Exaltation — Fulminating Psychoses — States of Mental Enfeeblement — Recurrent Insanity — Epileptic Insanity — General Paralysis of the Insane — Alcoholic Insanity — Insanity at the Periods of Puberty and Adolescence — At the Puerperal Period — At the Climacteric Epoch — Senile Insanity, Pages 115-431 STATES OF DEPRESSION. Mental Depression Defined — Decline of Object-consciousness — Rise of Subject- consciousness — Muscular Element of Thought — Failure in the Relational Element of Mind — Sense of Environmental Resistance — Reductions to XU CONTENTS. Automatic Levels — Sense of Effort — Restricted Volition — Enfeebled llepre* sentativeness — Transformations of Identity — The Physiological Aspect — Defective Circulation — Nutritional Impairment — Explosive Neuroses — Hunger of the Brain-cell — Painful and Pleasurable Mental States — Re- action-time in Melancholia — Degrees of Mental Depression — Clinical Varieties of Melancholia — Simple Melancholia — Delusional Melancholia — Hypochondriacal Melancholia — Melancholia Agitans — States of Mental Stupor — Stupor and Hypnotism — Acute Dementia, . . Pages 115-150 STATES OF STUPOR. Stupor and Dementia — Etiology of Stuporose States — Stupor and Hypnotism — Stuporose Melancholia — Acute Primary Dementia, . . . Pages 150-162 STATES OF EXALTATION. Maniacal Reductions — Failure of Attention — Enfeebled Synthesis — Transient Delusive States — Exalted Sense of Freedom — Impulsive Conduct — Nocturnal Crises — Seclusion Fosters Hallucination — Sexual Illusions — Stadium Melan- cholicum — Enfeebled Imagination — Bodily Symptoms — Periodicity of Maniacal Phenomena — Acute Delirious Mania, . . . Pages 162-176 FULMINATING PSYCHOSES. Uniform and Partial Denudations — Defective Control — The Neurotic and Criminal Subject — Nature of Impulsive Insanity^Insane Homicidal Impulse — Exist- ence of Aura — Epigastric Aura — Uncovering of the Brute Instincts — Relief of Mental Tension — Illustrative Cases — Suicide in Homicidal Subjects — Etiology — Effect of Physiological Cycles — Epilepsy — Masked Epilepsy — Alcohol and Impulsive Insanity — The Mimetic Tendency — Suicidal Impulse, Pages 176-188 STATES OF MENTAL ENFEEBLEMENT. Mental Deprivation in Contradistinction to Developmental Arrest — Persistent Enfeeblement — Chronic Residue of Asylum Communities — Recoverability of Maniacal and Melancholic Forms — Consecutive Dementia — Delusional In- sanity — Genesis of Monomaniacal States — Environmental Resistance — Trans- formation Completed — Mystic Symbolism — Illustrative Cases of Delusional Insanity — Monomania of Pride (/. 0., E. T.) — Religious Monomania (J. B.) — ^lonomania of Persecution (E. C), Pages 188-200 RECURRENT INSANITY. Definition — Establishment of Labile Equilibrium — Prevalence at Sexual Deca- dence — Heredity — Influence of Neurotic Heritage and of Ancestral Intem- perance — Atavism — P»-ccurreuce in the Congenitally Defective Subject — Morbid Excitement and the Moral Imbecile — Alternations of Excitement and Stupor — Hysteria and Menstrual Irregularity — Eroticism {A. S., M.A.M.) — Recurrence in Adolescence (J/. C. )r.)— Recurrence at the Climacteric {H. 0.) — at the CONTENTS. XUl Senile Epoch (/. (S".) — in Puerperal Subjects {M. B.) — in Traumatic Insanity (B. L.) — Morbid Impulsiveness — Hallucination and Delusion (/. £.)— Proosterior radicular zone : posterior ground fibres of Flechsig). 8. Posterointernal (or postero-median) column {column ofGoll). Direct Pyramidal Tracts. — A certain proportion of the fibres of the anterior pyi'amids which escape decussation in the medulla, descend direct on the same side of the cord, forming the tract which more or less completely bounds the anterior median fissure. This anterior pyramidal tract progressively diminishes in size from above down- wards, as it becomes distributed to the anterior cornu of the opposite side by a continuous decussation of its fibres throughout its course along the anterior commissure. It usually extends to the mid-dorsal region, but occasionally passes down as far as the lumbar cord, and is found to vary very considerably in size for the same levels of the b THE SPINAL CORD. cord in different individuals, according to the more or less complete pyramidal decussation at the lower end of the medulla. There are strong reasons for regarding the fibres of this tract as chiefly destined for tlio upper extremities. Crossed or Lateral Pyramidal Tract.— Constituted by the larger proportion of fibres from the anterior pyramids* which undergo decus- sation at this high level (see fig. 1 , j)>j), the lateral tract passes down in the posterior section of the lateral columns, becoming, like the anterior Fig. 1. — Section across transition region of medulla, showing decussation of ])yraniidal tract and nuclei of posterior columns. X, Cell gronp in base of posteriorrcornu. cc. Central Canal. 5, Lateral column. a and 5, Cell clusters in anterior cornu. Ca, Anterior coruu. py. Pyramidal tract from lateral columns decussating at d as tliey ascend. f.l.a, Anterior longitiulinal fissure. s.l.p, Posterior longitudinal sulcus. n.g, Nucleus funiculi gracilis. n.c. Nucleus funiculi cuneati. H^, Funiculus gracilis. H^, Funiculus cuneati. c.e, Neck of posterior horn. g. Head of i>osterior horn. r.p.C.L, Posterior roots of first cervical nerve. direct tract, progressively diminished in size to the lowest level of the cord. The fibres of this tract pass into the grey substance of the anterior cornu between the two horns, to become connected with its motor nerve cells — probably, through the intervention of a ramifying * In rare exceptions even less than half tlie pyramidal fibres decussate at this level (Flechsig). POSTERIOR AND LATERAL COLUMNS. 7 plexus of nerve fibrils derived from the processes of these ganglion cells. The direct and crossed pyramidal tracts represent a continuous con- nection with the cortex of the motor area of the Itrain, passing uninter- ruptedly in this course through the crusta of the cerebral peduncle and the internal capsule. Posterior Median Column. — This wedge-shaped column of fine nerve fibres lying on each side of the posterior median fissure, scarcely recognisable below the dorsal region, extends from this site upwards to its termination in the clavate nucleus in the medulla. It increases steadily in size from below upwards, and undoubtedly receives fibres in part from the sensory nerve-roots which pass into this column by way of the postero-external column, as well as the posterior commissure. Postero-Lateral Columns cannot, like the postero-median, be re- garded as largely a continuous tract throughout the spinal cord. A gi'eat part of their bulk is constituted by the inner division of the posterior nerve-roots which, curving round the caput cornu, run obliquely upwards or downwards, or directly outwards, to enter the grey matter of the horn ; and also, in part, by a system of short, vertical, commissional fibres passing betwixt different levels of the grey matter throughout the whole extent of the cord. Higher up in the medulla we shall find that this column terminates in the CUncate nucleus. Direct Cerebellar Tract. — A somewhat flattened fasciculus form- ing the marginal zone of the lateral columns, from the end of the dorsal region upwards, lies upon the outer side of the lateral or crossed pyramidal tract; its fibres arise from the posterior vesicular column of Clarke, which, as we have seen above, com- mences at the level of the third lumbar nerve. It gradually augments in size, and eventually terminates in the cerebellum, passing up to it along the restiform tract of the inferior peduncle. At its origin, and high in the cervical region also, the lateral pyramidal tract becomes superficial behind, so as to separate it from the posterior cornu. Antero-lateral Ascending" Tract (Gowers).— A column of fibres extending up through the whole length of the cord (occasionally the seat of ascending degenerative changes) has been described by Dr. Gowers as situated in front of the crossed pyramidal and direct cerebellar tracts. Passing across the lateral columns on a level with the posterior com- missure and reaching the surface, this tract skirts the margin of the cord almost as far as the anterior median fissure. The tract is regarded as a sensory tract originating from root fibres of the sensory nerves decussating across the posterior commissure.* * Diagnosis of Diseases of the Spinal Cord, First Ed., 1879; and Diseases of the Nervous System, vol. i., pcage 122 (Gowei-s). a THE MEDULLA OBLOXOATA. Anterior Radicular Zone and Lateral Limiting* Layer.— Tluse may be considered togetlier as constituting, like many of the fil)res of the posterior radicular zone, a series of short commissural fibres uniting the grey matter at different levels. In the case of the anterior root zone a certain portion of the fibres decussate at the anterior commissure, and thus " a connection may be established between the two anterior cornua at different levels " {Gowers *). We might summarise in the following short scheme the probable relationships of these tracts, as taught us by the Wallerian degenera- tions following upon disease or physiological experiment : — Short commissural vertical tracts — (1) Anterior root zones. (2) Lateral limiting layer. (3) Burdach's columns (in part). Descending motor from cortex cerebri — (4) Tiirck's columns. (5) Crossed pyramidal tract. Ascending sensory tracts — (6) Goll's columns fi-om posterior roots. (7) Direct cerebellar from visceral tract. (8) Antero-lateral ascending from ci'ossed sensory roots. THE MEDULLA OBLONGATA. A transverse section taken just below the calamus SCrlptorius so as to reveal the central canal intact, ere it opens out on tlie free surface of the fourth ventricle, shows us the central grey matter thrust back to the posterior margin of the section — yet encroached upon laterally by the mass of the clavate and CUneate nuclei on either side. The central grey substance situated in the middle line is symmetrically disposed around the central canal, which here forms a mere elongated slit. Most prominent in front, it presents an eminence on each side of the median raphe, with a rich nucleus of large nerve cells, really disposed in double clusters — the nuclei of origin of the hypoglossal nerve, the fibres of which conspicuously run forwards towards the ollvary region. On each side of these median pro- minences, a lateral projection of grey matter also occurs in front of and partially surrounding a conspicuous column of meduUated fibres seen in transverse section encircled by meduUated loops — the solitary fasciculus, fasciculus rotundus or respiratory fascicle. From * Loc. clt., p. 12.3. CLAVATE AND CUNEATE NUCLEI. 9 this point the central grey matter inclines hackwarcls to the miclrlle line, behind the central canal, and at an acute angle to the former. This sudden inclination backwards is necessitated by the prominence of the Clavate nuclei, which, lying behind the central grey substance and to its outer side, approach each other near the mesial line; along the backward inclination of this and the lateral prominence, nuclei for the origin of the accessory nerve and vago-accessory system are found. • Ip JT' nj n^~ ^ f.la. A- Fis- 2. — Cross-section of medulla oblongata at the upper decussation of the pyramidal tract. s.l.p. Posterior longitudiual sulcus. H'^^ Funiculus gracilis. n.g. Nucleus of funiculus gracilis. H", Funiculus cuneatus. n.c. Nucleus of funiculus cuneatus. n.c}-, External nucleus of funiculus cu- neatus. a. Y, Ascending root of trigeminus. g. Substantia gelatinosa. f.a, f.ci}, f.d-, External arciform fibres. F.r, Formatio reticularis. ii.l, Nucleus of lateral column. o^, Accessory olive. 0, Inferior olivary body. n.ar. Nucleus arciformis. py. Pyramid. f.l.a. Anterior longitudinal fissure. d.a, Anterior or upper decussation of pyramids. 71. XII, Nucleus and root fibres of bypo- glossal nerve. c.r, Central canal. n.XI, Nucleus of spinal accessory. On each side of the centi'al canal a column of fibres enclosing an elongated nucleus of nerve coi'puscles, measuring 23 /t x 11 /i, extends forwards towards the middle line ; and here, still enclosed in the central grey area, is a mesial compact cluster of small cells. The former represents the nucleus of the eminentia or fasciculus teres, which at higher levels becomes a prominent feature on the 10 THE MEDULLA OBLONOATA. floor of tho ventricle. Root fn)ri'.s of tlio accessory nerve will at this level be traced from the lateral angle or eminence of the grey substance to their site of emergence behind the olivary body. Above the calamiis scriptorius, the opening up of the central canal on the floor of the fourth ventricle, is necessarily attended by a recession of the clavate nuclei; and the eminentiae teretes, which, as we stated, formed the antero-lateral boundaries of the central canal, become now exposed on the surface, as the innermost column seen in this lower half of the venti'icle, on either side of the median raphe. Formerly covered by the ala Cinerea, which represents the nucleus of the vagus, the fasciculi teretes pass upwards as wliite columns, strongly contrasting with the grey of the vagus nucleus ; and, as they take this course, they lie superjacent to the hypo- glossal nuclei. These eminences, therefore, map out the course of the hypoglossal nuclei, but must not be identified with that nerve, as they belong to a wholly distinct system. Whilst the white columns of the eminentite teretes become wider and more pronounced upwards, the ala cinerea disappears l)etween them and a more external eminence — the aCOUStic tubePCle — so that transverse sections exhibit on either side of the median raphe from within out- wards the eminentiae teretes, the tuberculum acousticum, and lastly the restiform columns. At this plane the central grey matter is consequently unfolded outwards — a strongly marked concavity directed backwards, still characterises this region of the ventricle ; but this process of unfold- ing proceeds at higher levels, until on a plane with the striae aCOUSticae, the floor of the ventricle is almost flattened out, pre- senting only a gentle depression at the middle line. As this process of unfolding of the central grey matter proceeds, the restiform tract diverges more and more from the mesial line ; whilst simultaneously the central grey substance, notably in the region of the hypoglossal nucleus, becomes shallower, and the nucleus itself nearer the surface. Superficially viewed in the fresh medulla one readily sees between the diverging restiform columns a large central V? divided midway by the vertical raphe and separated from the plump acoustic tubercles on either side by a well-marked depression, into which the upper wedge-shaped apex of the ala cinerea plunges and loses itself. The anterior border of the grey substance now loses its abrupt pro- minences, and assumes a gentle sinuous course across the medulla from one solitary fasciculus to the other — the several wave-like summits representing the site of the hypogflOSSal and the vag'O- accessory nuclei (fig. 3). Having so far followed the disposition of the central grey matter. ASCENDINfJ ROOT OF FIFTH NRRVK. 11 from just l)elow the opening-up of the central canal to the level of the stria; medullares of the acoustic nerve, the student should now direct his attention to a cross-section of medullated fibres of a notable crescentic configuration, and encircling on its outer side a coarsely reticulated region largely made up of deep stained connective tissue. nX , nX' ii.ar Fig. 3.— Section of medulla oblongata n.t. Nucleus of fasciculus teres. n.XII, Nucleus of hypoglossal nerve. n.X and n.X^, Nuclei of vagus. /.s, Fuuiciilus solitarius. 11. g, Nucleus of funiculus gracilis. n.c, Nucleus of funiculus cuneatus. n.am. Nucleus ambiguus. C.r, Restiform tract. g, Substantia gelatinosa. a. V, Ascending root of trigeminus (fifth nerve). F.r, Reticular formation of lateral column. a.X, Root fibres of vagus. through the inferior olivary bodies. o.a.l, Outer accessory olive. ?;.?, Nucleus of lateral columns. f.a.e, Exterual arciform fibres. o. Inferior olivary body. XII, Emergent root fibres of hypoglossal. p. Anterior pyramid. n.ar, Nucleus arciformis. f.l.a, Anterior longitudinal fissure. p.oJ, Olivary x»eduncle o.a.m, Inner accessory olive. V, Anterior column. r, jVTediau raphe. These conspicuous structures lie laterally disposed near the margin, on either side, in all sections of the medulla up to the emergence of the trifacial nerve : the dark-stained reticulum is the representative of the substantia gelatinosa of the posterior cornu. The medul- lated crescent is the ascending root of the fifth nerve, representing the ascent of the remaining portion of the posterior root zone of the spinal cord. Drawing an imaginary line from the solitary fasciculus outwards to this crescent — to its anterior border in the lower levels, 12 THE MEDULLA OHLOXGATA. and to its posterior Ijordcr in tlic higher levels near the acoustic — wc map otl" a region which corresponds to the posterior columns of the spinal cord, and their continuation as the inferior peduncles of the cerebellum : this region lies behind the imaginary line so drawn. In like manner, a line drawn from the mesial eminence of the central grey matter obliquely outwards to the root of the infi-rior olivary body, maps off the remaining portion of medulla into two divisions, an inner, between it and the median raphe ; and an outer, between it and the former line di-awn to the crescentic root of the fifth nerve. The inner of the two divisions corresponds to the anteriOF COlumn of the cord ; the outer division, to the lateral COlumns. The two imaginary lines, so drawn, correspond to the direction taken by a motor system and a mixed motor and sensory system of cranial nerves — the former line corresponding to the spinal accessory, pneumo- gastric and glosso-pharyngeal nerves, the latter to the hypoglossal. On the other hand, the purely sensory acoustic nerve arises from a position further back than the mixed lateral system ; and above the plane of the latter nerve we find the origin of other cranial nerves disposed in like manner — viz., an anterior or motor, a lateral or mixed system, and a posterior or sensory system. Reverting now to the posterior of these three divisions of the medulla, which, as we have stated, is bounded in front by the emergent root fibres of the mixed lateral system of nerves — we note, first, that in the lower plane (below the calamus) the greater mass of this region is constituted by the derivatives of the posterior columns of the cord and their nuclei. The columns of Goll with their clavate nuclei, and the columns of Burdach (or posterior root zones) with their cuneate nuclei, encroach by their mass upon the posterior aspect of the central grey matter, nearly meeting at the middle line ; and concealing, in this way, the deeper seated nuclei of origin of the vagus and hypoglossal. In front of the clavate and cuneate nuclei in the same territory, lies the solitary fasciculus, and the ascending root fibres of the fifth nerve around the gelatinous substance of Rolando. The crescentic I'oot-area of the fifth nerve is covered externally by the fibres of the direct cerebellar tract from the cord ; whilst behind this tract, but still forming the outer margin of the medulla, is a narrow zonular layer, representing the commencing restiform tract of the cerebellum. At this level it will be apparent that large numbers of delicate arched fasciculi are thrown oft' from both clavate and cuneate nuclei; and these, passing forwards through the lateral columns of the medulla, terminate in the inferior olivary body of their own side partially, from whence fresh fasciculi start to reach the opposite resti- RESTIFORM AND INNER DIVISION OF CEREBELLAR PEDUNCLE. 13 form tract, whilst the more posterior fasciculi cross the raphe, and traverse the opposite olivary body on their way to join the restiform tract on this side. Hence the clavate and cuneate nucleus of each side discharges itself by an extensive series of arcuate fibres into the ojyposite restiform tract, through the intermediation of the olivary body partially of its own side, and partially through that of the other side. As a direct result of this projection, we find in our sections above the calamus, the rapid attenuation of these nuclei of the posterior columns, with a corresponding enlargement of the restiform tract for the cere- bellum. At these higher levels the unfolding of the central grey matter is permitted by the lateral recession of these structures, partly induced by the attenuation and disappearance of the two nucleated masses, and partly by tlie divergent course assumed by the resultant restiform tract to reach the cortex of the cerebellum and its dentate nucleus. Near the lower angle of the fourth ventricle, our transverse sections show us the restiform tract as a very conspicuous, somewhat pyriform area, and pale-stained in contrast to the parts behind it, from the close approximation of the medullated fibres seen in cross-section, none being arranged in fasciculi. Immediately behind this tract, however, is a much deeper-stained area, lying between it and the central grey matter and solitary fasciculus ; it is notable for the great number of small round or oval bundles by which it is constituted, measuring usually 90 /x x 22 /x, pale-stained, and enclosed in grey matter with a meshwork of deeply-stained tissue. In this area, which covers an irregularly quadrilateral space, appear many large multipolar nerve corpuscles with large nuclei ; these corpuscles attain the dimensions of 32 [J. X 20 [jj. The medullated formation so constituted is an important division of the medulla to recognise. It has been long known as the inner division of the inferior cerebellar peduncle— the resti- form tract forming the outer division of the same structure. Its connections above are with two nuclei, situated one on either side of the median line, beneath the superior vermiform process of the cerebellum, and are called, since their discovery by Stilling, the roof nuclei. Its connections below have been variously given. Stilling believed them to be the origin of the clavate and cuneate columns ; Meynert shows that this view is incorrect, and we have already seen that the latter .columns are in complete connec- tion with the restiform tract. It would appear to us that these internal divisions of the cerebellar peduncle break up into arcuate fibres, which partly pass behind, but partly traverse the hilus of the olivary body of the same side, and thence, crossing the median raphe, 14 Tin: MEDULLA OBLONGATA. terminate in tlic groy matter of the opposite olive. Nearer the calamus Ave find that the clavatc; and cunoate nuclei, not as yet completely resolved into arcuate fasciCUli, insinuate themselves between these two divisions of the inferior peduncle — a little higher, where the nuclei have disappeared, these cerebellar columns are, as we have intimated, in juxtaposition. Passing now to the region lying in front of the emergent root fibres of the lateral system of nerves, between them and the motor system (hypoglossal), we find the greater part of this area occupied by the cross-section of ascending fibres, broken up into numerous minute groups by the intertwining of complex arcuate fibres, as they curve forwards and inwards to the raphe and the olivary district. To this fasciculated meshwork the term reticular formation has })een applied, the ascending fibres being the continuation of the outermost part of the anterior root zone. Two well-defined nuclei characterise this lateral column of the medulla : one, which is the richer in cells, is elongated and directed from without inwards, approaching the margin of the lateral column, lying parallel with the roots of the lateral mixed nerves, between the substantia gelatinosa behind, and the olivary and its fillet in front. Further inwards in this lateral column, and carried backwards parallel with the lateral mixed roots, is a second smaller group of cells more closely clustered than the former ; nor traversed as these are by dense fasciculi of arcuate fibres passing to the olivary body. The former, called the nueleus of the lateral COlumn by Stilling and Clarke, might be more conveniently termed the external, and the second cluster the internal, nucleus of the lateral column ; or following Dr. Ross, the anterior and posterior omcleus. They almost certainly represent motor cell-groups of the anterior cornua of the spinal cord, severed from the rest of the central grey matter by the decussation of the pyramids across to the lateral columns, and the interposition of the mass of the inferior olivary body. By Dr. Ross they are regarded as detached from the antero- lateral and postero-lateral group of cells in the anterior cornu by the cleavage effected by the arcuate fasciculi of the medulla, whilst those main groups are still found as the motor nuclei in the central grey matter of the medulla. Intei'calated l)etwecn the lateral columns of the medulla and the anterior or median, is the inferior olivary body, extending throughout the region we have been studying, but terminating at the level of the lowermost fibres of the ;;o??s. Prominent on the superficial aspect of the medulla, between the pyramids and the lateral and restiform tracts, it looks like a small almond-shaped body, which upon trans- INFERIOR AND ACCESSORY OLIVARY BODIES. 15 verse section reveals a grey nucleus, imhedchd in a mcdullatcd invest- ment oilo7igitudinal Ghres — the so-called fillet or olivary fasciculus. The grey nucleus is in the form of a plicated capsule of many folds, constituted of numerous cells imbedded in grey matter, and open towards its inner side. The investing medulla of longitudinal fibres passes inwards and forms a central core for this grey capsule, the fibres of which then spread out into its various convolutionary plica- tions to terminate in the cells here distributed : the remaining fibres, which do not so turn inwards to the grey capsule, pass downwards into the lower regions of the medulla and cord. We have already alluded to the dense intertwining and connections of the cerebellar arcuate fasciculi within these olivary bodies. In the lower planes below the calamus, our sections exhibit the olivary capsule open in front at its hilus, the anterior line of plica- tions being shorter than the posterior : and here, bordering upon this opening in the capsule, is an elongated belt of grey matter, containing cells similar to those in the olivary body — this is the internal accessory olive. Sections taken midway through the inferior olive show us two such bodies ; the one, as before, situated in the anterior column, separated from the olivary body by the root fibres of the hypoglossal, and greatly segmented by the passage of a rich system of arcuate fibres to the raphe : the other, in the lateral column just behind the hilus, like a concave lens with its concavity towards the olivary capsule — this latter is the external aCCCSSOry olive.* In histological structure both resemble the larger olivary body, and by Meynert they are regarded as continuous with its capsule. The most external arcuate fasciculi entering the restiform tract come to it by way of the anterior pyramid and olivary body, partly in front of and partly behind (and so encircling) the former, and forming a thick stratum of fibres over the external aspect of the olivary body — its stratum ZOnale : and lastly, covering in like manner, the ascend- ing root of the fifth nerve to end in the restiform tract. A similar investment of the upper olivary body exists, as we shall see later on ; this in the lower mammals is uncovered by the fibres of the pons, which do not conceal them, as in man, and constitute the so-called corpus trapezoides. The zonular layer passing over the anterior aspect of the anterior pyramids is aptly referred to by Meynert as a small anterior po7is. This inferior half of the medulla, with which we have for the present concerned ourselves, contains the nucleus of origin and emergent root fibres of but one purely motor nerve — the h7/poglossal — but of four of * These bodies are also known as the "external and internal parolivary bodies." 16 THE MEDULLA OBLONGATA. tho mixed lateral system, viz., the spinal-accessor)/, vagus, glo88o- pharijHijeal, and (the ascending root of) the trifacial or fifth. At the anterior mesial prominence of grey matter in these planes, we find the nuclei of the hypo(jlot<><((l, which, prior to the opening up of the central canal, are arranged in a double cluster usually termed the internal and external convolute of the hypoglossal, owing to the loop-like arrangement of the centric and peripheric fibres connected with them. The external also lies at a posterior plane to the internal. The cells are large and uiulticaudate, forming the most conspicuous cell-groupings in the whole sectional area of the medulla : they measure 60 il x 20 //-. The centric connections of these nuclei consist of certain straight fibres of the median raphe, which run back- wards as far as the central grey matter, and then arching outwards, form spirals around the front and outer border of each nucleus, and are connected with its large cells : thence, similarly curving around the inner border to pass obliquely outwards, are the peripheric fasciculi — the rootfihres of the hyporjlossal. These emerge from between the pyramid and the olivary body, some fasciculi traversing the latter in their course. In vertical extent this centre of origin stretches from just above the level of the decussation of the pyramids to the strioz viedullares of the acoustic nerve ; but, as we distance the calamus, the groups become less definite and merged into a less characteristic form, far less rich in cells. Thi-oughout the wliole of this extent, the vertical column of cells gives origin to emergent radicles, which issue anteriorly. External to the hypoglossal nuclei lie the lateral projections of the central grey matter, in the angle of which we find the sensory nuclei of origin of the mixed lateral system of nerves, so named from their possessing both motor and sensory filaments. Some seven roots of origin are enumerated by Meynert for this system of nerves ; and it is probable that the three nerves of this system in the lower half of the medulla ai'ise in a very similar, if not identical, manner from closely associated nuclei, some of which are common to two nerves. The two more important nuclei of origin for this system are — the motor nucleus of the mixed nerves, and the sensory already alluded to. The motor nuclei are found in advance of the central grey substance, disposed in the lateral columns of the medulla. A somewhat elongated cluster of large nerve cells, from which motor fiisciculi emerge and run backwards pai-allel to the emergent root fibres of this system of ner^•es, is the more important of this mode of origin ; but, fibres running in the same direction can also be traced further outwards, to the nucleus of the lateral column, between the ascending root of the .fifth and the inferior oli\ary body. Much discrepancy SPINAL ACCESSORY, VAGUS, GLOSSO-PIIAUYXGEAL. 17 appears with respect to the descriptions given to these anterior roots of origin of the mixed lateral system ; some autliorities .speak of an anterior and posterior nucleus of the lateral column ; others describe these fibres as being doubtfully roots of the system ; whilst others with Meynert refer to one nuclear column of origin distinct from the nuclei of the lateral column. In fact, Meynert traces this motor nucleus as a nucleus of the spinal accessory downwards to the lateral process of the anterior horn, and finds its analogue on higher levels in the inferioF facial and motor nucleus of the trigeminal.* Our own view of the case would be in accordance with that of Meynert ; in addition to which, however, we would assign to the external nucleus of the lateral colitmn a partial site of origin for these motor rootlets. The important fact for the student to bear in mind is that these motor nuclei are, in accordance with the spinal cornual scheme, in advance of the sensory division, and reach the main roots by I'ecurrent fascicvili curving round the vagus nucleus from the inner to the outer side ; and this type is repeated for the motor roots of the facial and trigeminal nerves. The sensory nucleus or posterior nucleus for these three mixed nerves is a somewhat compact formation of nerve cells, clustered within the lateral angle of the central grey substance at the lower planes of this region, where it forms the vago-accessory nucleus. A little difficulty may be experienced in distinguishing between the nucleus of origin for the three nerves, if we do not attend to the fact that so long as arcuate fibres are seen distributed to the solitary funiculus from the raphe, we are in the region of origin of the spinal accessory and beloio the vagal nucleus ; the latter centre can also be difierentiated into two groups, an external and internal nucleus, described by Lockhart Clarke, a similar arrangement prevailing for the glosso-pharyngeal centres. From the apex of this grey prominence, which represents a sensory column of origin for these nerves, pass outwards tlie main root fibres — the spinal accessory between tlie olivary bodies and gelatinous substance ; the vagus and glosso-pharyn- geal through the latter, and traversing in their course the ascending roots of the fifth nerve ere they emerge at the surface. Immediately outside the origin of this root, at the posterior or sensory nuclei, is the conspicuous cross-section of the solitary fasciculus, which really represents an ascending" rOOt for the same mixed lateral system. We have seen that a dense arcuate system passes into it from the median raphe (centric fibres) below the origin of the vagus ; we may also just as readily trace fibres issuing from this ascending root to join the emergent roots of the accessory, vagus, and glosso-pharyngeal * PsycMalry, translated by Sachs, part i., p. 124. 18 THE PON'S VAKOLII. nerves. The posterior sensory nucleus is regarded by Dr. Ross as the representative of the vesicular COlumns Of Clarke in the spinal cord from their relative position, connections, character of the*cells, and their distribution. A fourth root easily traced in the region of the vagus, is one /'anlicuiu Corinis j quiulri- -. geiniuuin (^posticum Locus coerule«3 - Eiuinentia tere: CruK cerebelli ad pontem or MLMle cerebellar peduncle. Con&rium or pineal gland. Urachlum coDJunctivum auacuin. Bracliium coEjunctlv posticum. Corpus geiiiculatum uedialt^ Pedunculus cerebri. ad corpora quadri-^ pctnina. or 1 \ superior ciTCbellar 1 il pedunclt. \ ad mcduUam oblon fatam, or interior cerebellar peduacle. J' Ala cinerca Acc^ssorius nucleus Funiculus cuneatus (Part of rcsliform body). Funiculus cracUis (I'ORtorior iivr.imid). Fig. 4. — Medulla oblongata and pons with neighbouring structures seen from behind : schematic reiireseutation of the nuclei of origin of the several cranial nerves. which, emerging from the raphe, traverses the front of the hypoglossal nucleus, and, following the curve of the grey substance anteriorly, enters the vagus nerve. In traversing the gelatinous substance also, the vagus and glosso-pharyngeus both derive fibres from the former ere they issue from the medulla ; this is the fifth root of origin for ABDUCENS, FACIAL, AND ACOUSTIC NUCLEI. 19 tlies(^ nerves. Another small fasciculus has been described by Clarke as passing from thc^ fasciculus tePGS into the vagUS. The Upper Half. — Passing now to the upper Jialf of the medulla, which upon its ventricular aspect is like the lower half triangular in outline, its base being mapped out by the acoustic stride and its lateral boundaries formed l)y the superior cerebellar peduncles, con- verging to the quadrigeminal bodies, we meet first with tioo motor nerves closely associated in their origin, and arising as do the motor cranial nerves generally, from an anterior or median position on either side of the raphe ; and one purely sensory nerve, which takes its origin in accordance with the same morphological principle alluded to, from a lateral and posterior plane. The two motor nerves are the sixth and seventh pair, or the abducens and facial ; the sensory nerve is the eighth, the aCOUStlC or audltory. The nuclei of origin for these three nerves do not occupy the same vertical plane ; that for the sixth is the highest, next below it comes the facial nucleus, and lowest of all the acoustic nuclei — yet they each successively overlap the other, the internal acoustic nucleus, as we have already seen, descending also below the base of the arbitrary triangular space drawn by the strise medullares. As in the lotmr triangular area of the grey floor below the striae, we found the nuclei of a motor (XII) and three mixed nerves (IX, X, XI) associated through a great part of their extent with the accessory body — the inferior olivary ; so in this upper triangular division we find a very similarly constituted structure — the superior olivary body — occupying a vertical plane corresponding very nearly to that of the two motor nerves — the sixth and seventh. Transverse sections across the levels of emergence of these latter nerves exhibit a notable change in the distribution of the various structures in front ; the inferior olivary bodies have disappeared ; the pyramids still maintaining their integrity as independent, compact columns, are now concealed beneath the most anterior fibres of the middle cerebellar peduncle {^wns), which enclose them between their transversely disposed fasciculi, as a more superficial and a deep series of fibres ; whilst laterally the brachia of the pons diverge to the cerebellum, and further back the restiform and internal divisions of the inferior cerebellar peduncles in like manner pass to their distribution. On a level with the stride medullares an in- termediate transitional stage is apparent ; and, as we pass to higher planes, the inferior olivary body loses its outward inclination, its long axis becoming disposed antero-posteriorly and immediately be- hind the two pyramids. Thus a lateral constriction occurs which gives the medulla here from before backwards an apparent but not 20 THIC PONS VAROLII. absolute incrcasrcl dcptli. This antero-postorior dopth appears still more exaggerated by the lower loops of the pons capping the pyramids in front, mIucIi have just been caught at this plane and divided. In such sections the nucleus of the lateral column is still well seen between the diminished olivary body and the ascending root of the jxj'th nerve, whilst immediately jDosterior to the inferior olives is a group of large fusiform and multicaudate cells, the former in connec- tion with the arcuate system here, the latter in apparent connection with fasciculi which pass backwards to the median or motOP column of grey matter. Still somewhat higher, the inferior olive ceases, or may present its upper extremity as a single minute plication ; and, in this region, we find the nucleus of the lateral column compressed into a long narrow tract by the interposition between it and the ascending root of thefiftlt, nerve of a very notable large nucleus of almost spherical outline, and by the disposition of its enclosing fibres, severed appar- ently into a series of convolutes of large multicaudate cells. This is the anterior or inferior nucleus of the facial nerve, and from it a somewhat wide belt of sparsely scattered fasciculi pass back to ascend, as Ave shall see later on, as the genu of the facial nerve, whilst the compressed nucleus of the lateral columns sends in- distinctly marked fibres towards the median grey. The superior olivaiy does not as yet present itself; in this plane we may study the various nuclei of origin of the auditory nerve. Following the grey matter of the floor of the ventricle outwards from the median pi-omi- nence (which here is remarkably shallow), we find it progressively increases in depth to its extreme lateral limits, where the lateral or sensory projection is a notable feature, and the large internal auditory nucleus is seen. Immediately outside this sensory nucleus is the tesselated area characterising the inner division of the inferior cere- bellar peduncle ; followed still further outwards by the transverse section of, the crescent-like resfi/urm tract. To the inner side of the restiform tract the conspicuous ascending root of the fifth nerve is applied. The whole of the structures above noted — the grey floor Avith its lateral prominence, the inner peduncular tract, and the restiform column — are embraced superficially by a zonular investment of fibres issuing from the region of the raphe ; in fact, the striiv medxUarcs, which, reinforced further on by others emerging from the restiform tract, constitute the posterior root of the auditory nerve. On the other hand, these same structures aboA^e enumerated, are embraced from loithin by the anterior auditory root, Avhich runs chiefly betAveen the restiform tract and the ascending root of the fifth, although many of its fasciculi traverse the structure of the. NUCLEI OF ACOUSTIC NERVE. 21 latter. The student sliould remark lioro tliat tlio fifth ascondiii'r root serves always to distinguish to him the emergent roots of the facial from those of the auditory ; the facial lying to the inner, and the auditory to the outer side of this root. The anterior root of the acoustic passing inwards in front of the restiform column divides into the following root fasciculi : — (a.) An inner series passing into the internal aCOUStic nucleus, with the cells of which it is connected. (5.) A median series passing in part to the cells of the external acoustic nucleus (connected with the inner peduncular division) ; and in part to the restiform tract. (c.) An outer series passing into the anterior aCOUStic nucleus, which is situated between the restiform tract, auditory root, and flocculus. The connections of the auditory nerve roots with the cerebellum are to a great extent unknown. According to the belief of Meynert, the divisions of the anterior root take a decussating and non-decus- sating course \ the two median and the outer pass direct into the cerebellum through the inferior peduncles of the same side ; whilst the inner pass from the internal acoustic nucleus across the raphe partly through the internal, partly through the external acoustic nuclei of the opposite side, and thence up the internal division of the peduncle to the cerebellum. These obliquely ascending fasciculi give rise to the superficial striae on the floor of the ventricle, the so-called sound-rod of Bergmann. The posterior roots empty themselves partly into the restiform columns of their own side, and partly as superficial and deep arcuate fibres across the raphe into the inner peduncular division of the opposite side, and thence ascend to the cerebellum. In this course the superficial series form the well-known acoustic striae or striae meduUareS, and do not come in contact with the internal acoustic nucleus ; the deep arcuate series, however, traverses the nucleus of its own side, and crossing the raphe joins the cells of the opposite internal acoustic nucleus ere it enters into its centric expansions by the peduncular route. At higher planes of the medulla wherein the superior olivary body appears, we reach the radicular zones of the facial and the abducens. The motor area of the grey floor of the ventricle at these levels presents in transverse sections, two strongly defined eminences separated by the median groove and raphe — these are the eminences over the facial genu and the nucleus common to both facial and abducens nerve. The sensory area of the grey floor flanks these eminences on either side like walls, diverging from them at a somewhat obtuse angle, the enclosed space being bridged over by the cerebellum. 22 THE PONS VAKOLII. On either side of the median line at the extreme posterior end of the raphe, is an oval cross-section of medulla IJ mm. by ^ mm. in size, sharply defined and lying between the grey matter of the lioor and the hindmost series of arcuate fasciculi given off from the raphe; it represents the root of the facial nerve in cross-section at its curva- ture upwards, otherwise called the facial g'enu. From its neigh- bourhood medullated fasciculi sweep in a wide curve, following the inner margin of the grey matter as far as the sensory area, when they pass forwards and outwards to their emergence from the medulla, forming in this latter course tlie boundary between sensory and motor divisions. In the sensory division outside this root lies, as we before indicated, the ascending" trig'eminal root. The sweep of the facial in its course beneath the grey floor encloses a large and important nucleus, measuring 3 mm. in widest diameter, very rich in cells which are multicaudate, and are disposed in an almost circular area; from G.f. -Section tbrousli pons ou a level with the origin of the great root of the trigeminus. F.H, Reticular formation, s.o, Superior olivary body. I', Lemniscus or fillet. Py, Pyramids. s.t.f, d.t.f. Superficial and deep transverse fibres of the pons. (?./, Genu of facial nerve. VII, Root fibres of facial. Vm, Motor nucleus of trigeminus. Va, Ascending root of trigeminus. R, Restiform tract. M.P, Fibres of pons varolii. p.l.b. Posterior longitudinal fasciculus. the outer side of this nucleus emerge root fasciculi, which are distinctly seen to join the facial as it sweeps forwards round the nucleus to its point of emergence. On the other hand, from the posterior and inner margin of this nucleus other fibres emerge, which upon the inner side strike forwards, becoming gradually more divergent from the raphe in sharply defined fasciculi, to leave at the lowest border of the pons as the abducens ABDUCEXS-FACIALIS, AND UPPER OLIVARY BOUY, 23 nerve or sixth pair. Tho nucleus itself is the abducens-facialis, also termed the pOSteriOP or SUpeHoP facial nucleus, or a;^'ain the nucleus of the sixth nerve. It is placed in communication with the cerebrum by means of the tibr?e rectre of the raphe, which can be readily traced as the most posterior of the arcuate fibres curving first around the facial genu in front, and then passing round the lower hemisphere of the nucleus. Considerably in front of the abducens- facialis nucleus, and in the motor division of this region, lies the inferior or anterior facial nucleus, almost parallel with the trigeminal root, but separated from it by the facial emergent fasciculi ; its fibres pass backwards, as we have already seen, at lower levels to arch beneath the abducens-facialis to its inner and posterior aspect, and thence running upwards as the genu of the facial, again bend around its upper border in the graceful sweep of the emergent roots. The Superior Olivary Body. — AVe have seen that this body extends from the lowest border of the 2^ons through the whole tract of origin of the facial nerve, being well-exposed in cross-sections, lying between the inferior facial nucleus and the emergent root fibres of the sixth nerve. The transversely disposed fasciculi lying upon its anterior surface, extending from the decussation at the raphe to ascend in the inferior cerebellar peduncle, form the so-called COrpuS trape- ZOideS which becomes exposed superficially in animals where the dimensions of the pons are greatly reduced with the diminished supply of fibres reaching the medulla from the crusta. The lemniscus or fillet lies in these planes to the inner side of the superior olive, forming the pale-stained area of truncated triangular outline next the raphe, the base traversed by the most posterior fasciculi of the pons and trapezoid formation. Into the fillet at higher planes, fibres of the upper olive pass to be connected with the central grey of the lower quadrigeminal body, the testeS ; functionally these fibres should be regarded as centrifugal, since they have been found by Flechsig to degenerate downivards to the superior olive, A cerebellar connection is established between these bodies and the roof nuclei (nuclei tecti) of the middle lobe of the cerebellum ; whilst other fibres pass back from them also to the nucleus of the sixth and of the auditory nerve, as well as to the lateral columns of the spinal cord. Motor impulses, therefore, emanate from this body to the sixth nerve nucleus, which being connected by decussating fibres with the nucleus of the opposite motor OCUli, subserve the conjugate deviating movements of the eyeballs. In like manner, motor impulses to the lateral columns of the cord explain the associated movements of the head to the same side. The quadrigeminal bodies, on the other hand, Avhich are connected 24 THE PONS VAROLII. with the optic tracts, transmit stimuli tlicnce emanating, to the superior olivary l)odics through the medium of the fillet, and so to the oculo-motor apparatus of the sixth and third nerves. We have ah'eady seen that the posterior columns of the cord resolve themselves through the intermediation of their clavate and cuneate nuclei into the restiform tract of the cerebellar peduncle. They also by the anterior sensory decussation of a portion of their arcuate fasciculi pass upwards on either side of the median raphe as the fillet, and thence to the quadrigeminal bodies. This portion of the fillet, it will be observed, is a centripetal or sensory tract, so that the fillet really contains systems of ascending and descending fibres, as is indicated also by the results of lesions affecting the tract. At the level of origin of the sixth and seventh cranial nerves, the central grey forming the floor of the ventricle is, as we have seen, extended laterally, shallow from before backwards, and bounded on either side by the restiform tracts : as we ascend to a higher plane we find the superior cerebellar peduncles on each side, which, in their descent, restrict the lateral extension of the ventricle and its investing grey substance. This occurs in such sections as are cari'ied through the emergent roots of the fifth nerve. If we now follow the ventricle towards its upper angle, we find with the convergence of the superior peduncles towards the quadrigeminal bodies, the following changes in the disposition of the central grey : — First, the ventricle becomes narrower ; the prominent lips of the grey matter become more pronounced, from the increase in the thickness of this formation ; and at the same time the ventricle is roofed over posteriorly by the anterior medullary velum. The nuclei of the fifth pair alone of all the cranial nerves characterise this plane. Higher still, we come upon the root fibres of the fourth nerve which decussate across the aqueduct posteriorly. The central grey here forms two notable protruding lips on cither side of the mesial line, converting the aqueduct into a Y-shaped figure. Progres- sive thickening of the central grey substance occurs as we carry our sections through the posterior and anterior quadrigeminal bodies ; the aqueduct restricted in size is completely surrounded thereby, and suff"ers minor alterations in its outline until it opens up into the central cavity of the third ventricle. From the level of the crossing of the fourth nerve upwards, the Y-shaped grey exhibits the heak of the Y interposed between the two notable bundles of the posterior long^itudinal fasciculus, behind which we may con- tinuously follow an antcrlur or motor column of grey matter, containing nerve cells, and externally a lateral or sensory column, such as charac- terised the cranial nerve origins in the lower half of the medulla. NUCLKI AND ROOT-FIBRES OF TRIGEMINAL. 25 Betwixt these pianos and the upper roots of the facial nerve lie the emergent fasciculi of the fifth nerve, which, in accordance with its mixed motor and sensorial function, also assumes a lateral site of origin. We will now take these upper cranial nerves seriatim. The fifth or trigeminal has the nucleus of origin for its motor root within the motor area of the pons somewhat similar in position to the nuclei of the lateral division, which at lower levels sent fasciculi to the mixed system of nerves— the so-called nucleus ambigUUS. It, however, lies considerably behind this nucleus of the facial — the anterior facial nucleus — and cannot be mistaken for it, since it does not present the same convoluted structure ; and, moreover, is not in the mid planes of section of the upper olive, although the upper end of this structure is still seen. Its centric fibres pass to it from the median raphe where they decussate. The origin of the sensory root of this nerve is far more extensive. "We have throughout the whole of the medulla folloAved up in our sections the ascending" root of the trigeminal, noting how in the lower planes of the medulla the vagus and glosso-pharyngeal, and higher up, the facial, traversed its cross-section near their points of emergence, and now find it lying between the motor nucleus and the restiform tract in the sensory area of the pons, throwing forwards its root fibres to emerge between the transverse fasciculi of the pons. Below, this ascending root appears to end in the tubei'cle of Rolando, and so would seem to haA^e a close connection with the caput COrnu pOSterioris. A median root is described as originating from a nucleus at the level of emergence of the sensory root, in contiguity with the ascending root and the motor nucleus. On the lateral margin of the central grey around the aqueduct, as high as the anterior quadrigeminal body, or nates, we find the cross-section of the descending root of the fifth nerve with very characteristic spherical or vesicular cells lying in the central grey upon the inner side of the root fasciculi. Both cells and descending fasciculi become more conspicuous at lower levels, and the latter extend to the level of the exit of the sensory root, where they join it to emerge from the pons. Internal to this descending root is a series of deeply pigmented nerve cells, forming the substantia ferruginea, which is seen through the grey floor of the ventricle at the site named the loCUS COeruleus. From these cells, according to Meynert, pass root fibres to the opposite trigeminal root (sensory trunk), Avhich in their coui'se surround and traverse the posterior longitudinal fasciculus, decussate at the posterior extremity of the raphe, and thence following out the anterior margin of the central grey, arch into the opposite sensory root. Associated Avith these latter fibres are described others 26 THE PEDUNCULAR REOION. whicli issue from the median raphe posteriorly, and after decussation terminate in the sensory root likewise. Lastly, a cerebellar roOt is described by some authorities. In the motor column of the central grey, lying immediately behind the posterior longitudinal fasciculus, on either side of the median line and beneath the nates, is a well-defined grouping of cells, which, however, usually presents an apparent segmentation into distinct clusters. These nerve cells, commencing as high up as the posterior commissure, are at first somewhat scattered, but assume a more compact form as they run backwards towards the upper half of the testes, in which region they appear lodged in a hollow of the posterior wall of the longitudinal fasciculus. This nuclear column represents the origin common to the OCUlO-motor (third) and the trochlearis (fourth) nerves; the upper, scattered, segmented portion is the nucleus of the third more especially ; the lower compact segment lying at the junction of the two quadrigeminal bodies is the nucleus of the fourth nerve. Both are believed to receive their centric fibres through the median raphe, those of the third nerve decussating ere they reach their nucleus. The root fibres of the third nerve emerge in a series of arched fasciculi directed forwards, with their concavities, for the most part, looking towards the raphe ; and in their course traverse and partially encircle the red nucleus of the tegmentum, which, as we shall see further on, lies on either side of the raphe above the plane of their decussation. The root fibres of the fourth nerve take a much more circuitous course, running backwards instead of forwards to their point of emergence ; an anomaly accounted for by Dr. Ross by the decussation of the upper cerebellar peduncles which occurs in the region of the testes severing the nuclear segment of the fourth from that of the third nerve, and so " compelling the former to seek its destination by an independent route."* Commencing at the junction of the nates and testes from this compact segment, the root fibres of the fourth nerve curve around the outer zone of the central grey matter to reach the anteriormeduUary velum, where they bound the aqueduct posteriorly. To reach this point which lies below the testes, the root fibres must necessarily have traversed the full extent of the former, passing obliquely backwards and downwards to the valve Of Vieussens. Crossing in the substance of this valve the fibres of opposite sides decussate, presenting another anomaly — since none of the other cranial nerves (except the optic tracts) decussate on the distal or * Diseases of the Nervous System, vol. ii. , p. 44. THE MESENCEPHALON. 27 peripheral side of their nuch'i of origin, but iuvarialjly ou tlidr proximal or centric side, THE MESENCEPHALON. Upon the most casual examination of the cereLro-spinal axis, one is struck forcibly by the simple arrangement and solidarity of the spinal as compared with the remaining portion or upper end of this system — the gradual increasing complexity of the grey and medullated tracts of the after- and hind-brain, the so-called medulla oblong-ata and pons, and the uniform divergence of these tracts at higher and still higher levels : both gangliated masses and medullated systems alike severing their alliance, and diverging on either side in correspondence with the severance of the uppermost system into the two great hemispheric masses. As we rise step by step from medulla to pons, from pons to corpora quadrigemina, thence to the thalamic region, and lastly to the corpora striata of the prosencephalon, we find the grey masses becoming larger and more widely separated ; whilst the medullated tracts, in like manner, diverge and empty themselves at different levels into the several ganglionic masses — in all cases, pro- bably, to take a fresh departure to their final destination in the cerebral cortex. Leaving for the time the more consolidated tracts of the epence- phalon or hind-brain, and concentrating our attention on the mid-brain— i.e., the corpora quadrig-emina with the crusta — and the central grey common to the whole cerebro-spinal system, we find that the crura cerebri, athwart which the quadrigeminal bodies are placed, have two distinct tracts of wholly difterent destiny — the tegmentum and crusta, best seen in transverse section. The former occupies the posterior and inner region of the crura, and partly empties itself into the superjacent quadrigeminal bodies, and in part into the optiC thalami : whereas the latter — the crusta, lying in front and to the outer side of the tegmentum — becomes more and more divergent from its fellow of the opposite side as it courses upwards, passes in part into the basal ganglia, and in part expands into a wide-spread fan of fibres for distribution to the extensive cortex of the cerebral hemispheres. Thus we observe that the medul- lated tracts of the tegmentum and crusta in turn empty themselves into the several ganglionic masses met with from time to time — the quadrigeminal bodies, pineal gland, thalami optici, striate bodies, and cortex cerebri. It is important that the student understand that the termination of the fibres upwards occurs in grey masses placed at different relative levels, answering to tlie position of 28 THE MESENCEPHALON'. the liind-braiii, the mid-brain, the inter-ljrain, and the fore-brain : and he should gain a clear conception of each individual tract, so far as at present known, to its terminus in a grey centre. To return to the meSGncephalon, the hind and inner portion of the crura forms, as "sve said, the tegmentum, and on this structure rest the quadri- geminal bodies and thalami ; on the other hand, if we follow the crusta upwards, as exposed at the base, we find that each crusta diverges more and more until it meets the emljracing optiC tractS, which at this part of the base define the boundary between mesencephalon behind and thalamencephalon in front. At this point each crusta plunges deeply into the brain, disappearing between thalamus and lenticulaP nucleus, and passes up as a compressed medullated tract between the basal ganglia, emerging above their level as a wide-spread fan of fibres to the hemispheres. In this course, where they form a divisional wall between the large ganglia, they constitute what is called the internal capsule, the formation of which merits careful study. If we imagine the crusta as seen from the base pass up unchanged in direction into the internal capsule, we shall then perceive that the latter would take a direction sloping obliquely upwards and outwards, presenting two surfaces — a lower, looking downwards, outwards, and backwards, roofing over the lenticular nucleus, and corresponding and continuous with the superficial surface of the crusta as far as the pons; and an upper surface, upon which the thalamus rests, corresponding to the deeper portion which lies adjacent to the tegmentum. It would also present two free borders — the internal or mesial, and the external or posterior. In the further expansion of this belt of fibres, the inner or mesial suffers displacement through the intrusion in mesial planes of the head of the caudate nucleus, whereby the anterior portion of the capsular fibres is thrust outwards, forming a sharp bend or "knee" with the posterior division. Thus we observe that the internal capsule is a stratum of fibres with a concavity looking downwards and outwards, arching as a roof over the lenticular nucleus, and forming a medullated bed, upon the anterior segment of which rests the caudate nucleus, and upon the posterior margin of which rests the thalamus. If now we examine these ganglionic masses from above, as seen within the lateral ventricles, it is evident that the long axis of each is similarly disposed — i.e., from the mesial line obliquely backwards and outwards ; that the outermost of these masses, the two caudate nuclei, have their large pyriform head directed anteriorly, whilst their attenuated tail-like process appears pressed outwards by the narrow anterior pole of the wedge-shaped thalami. In like manner the latter, which have their broad extremity hindmost, are also pressed out- wards behind by the intervening quadrigeminal and g-enlculate CORPORA QUADRIGEMINA AND TIIALAMI. 29 bodies. Tliese three important structures— the corpora quadri- gcniina, thalami, and caudate nuclei— which represent the tlirce divisions of the mesencephalon, diencephalon, and partly of the Septum lucidum Columnae fornicis Corpus striatum Stria tenuiualis. Thalamus opticus. ^lacliiuni cr-Tiiiui tivum anticum. Pedunculus cerebri [" ad corpora quadrige- ad meduUam oblongatain. Cius eeiebelli . ad pontem. Cornu anticum. Caput nuclei caudatL — Capsula interna (anterior limb). Capsula externa. Island o{ Reil. — ■ Nucleus lentiformis. — . Cla'istrum. — r- Capsula interna K-ia (posterior limb). '•'^'J Thalamus opticus. Corpus genicula- tum mediale. Caudate nucleus Hippocampu*. y Calcar avia. Funiculus gracilis. Fig. 6.-Horizoutal section titrough liemisplieres, the right at a deeper level than the left, prosencephalon, as before indicated, rest upon and embrace the tegmental and crustal divisions of the cerebral peduncle. On the other hand, the outer division of the striate body— the 30 Tin: MESENCEPHALON. It'iitiuular nucleus — has its base directed forwards and outwards parallel Avith the insula, whilst its wedge-shaped apex is directed backwards and inwards towards the base — its upper surface, convex from before backwards, being adapted to the concavity of the internal capsule. The general relationships of the internal capsule are well seen in horizontal sections carried across the hemisphere at succes- sively higher levels. Kear the base it forms a quadrilateral section directed from within outwards and separating the tegmentum from the lenticular nucleus, having immediately behind it the locUS nig'ep, and parallel with it in front the anterior commissure as it passes outwards through the lenticular nucleus. It will be recalled that the crust, ere it disappeared into the depths of the hemisphere at the base, was bounded by the broad optic tracts : these are destined to terminate in the external g'eniculate body, and at a slightly higher plane these bodies appear immediately behind the extremity of the internal capsule as seen in transverse section. At a higher level, however, above the anterior, and through the plane of the middle commissure, the anterior portion is bent outwards, forming an obtuse angle or " knee," so that a horizontal section through both hemispheres at this level represents both internal capsules as an X-shaped figure with two anterior and two j^osterior segments (tig. 6). In the lateral angle of this X the wedge of the lenticular nucleus insinuates itself; between the anterior segments of the X the nuclei caudati appear ; whilst the posterior segments include the optic thalami. At the central junction of these limbs, we find the fornix out across. Lastly, turning our attention again to the base of the brain, Ave see that the divergence of the peduncles, as they ascend, leaves between them in the middle line, first, the posterior perforated space — a bridge-like extension of grey substance at the angle between both peduncles, perforated by numerous vessels which enter the base of the thalamus at this point ; and from which white fibres emerge and course round the upper margin of the pons — the taenia pontis. In front of the perforated space are two rounded bodies — the corpora albicantia — round which the pillars of the fornix turn ; and from these bodies a thin grey lamella stretches forwards as far as the optic commissure, forming the floor of the third ventricle : from its floor a hollow tube — the infundibulum — descends, to which is attached the pituitary body. Having thus far defined the limits of crusta and internal capsule, we can the more clearly appreciate the course and distribution of their fibres. Since the crusta represents the continuation upwards of the pyramidal tract of the cord, it must receive a considerable rein- CONDUCTIN quadrigerainal bodies seated upon the brain stem or pedunculus cerebri, where it diverges as two branches or crura, uncovered by the transverse layers of the pons, and up to the point of its entrance into the base of the brain. The cerebral peduncle consists of cruSta and tegument severed by the intervening RELATIONSHIPS AXD CONNECTIOXS OF TEGMENT AND CRUSTA. 41 substantia nig'ra. The nates and testes have intimate connections through their hrachia with the cerebral cortex and retina ; and below, through the girdle-like lemniscus with the olivary bodies, and, accord- ing to Meynert, the lateral columns of the cord ; both ganglia are also connected by their radiating central fibres with the oculo-motor nuclei in the central grey substance continued from the ventricle. In front of the ganglia and central grey substance lies the structure of the tegment, Adz.: — The posterior longitudinal fasciculus; the superior cerebellar peduncular fibres and its red nucleus of origin ; certain fasciculi crossing the median raphe from the quadrigeminal bodies ; and lastly, the layer of the lemniscus. Anterior and external to the tegment, is the crusta with the substantia nigra lying behind it. In the crusta we recognise the pyramidal tract as occupying the inner, middle third, and the portion behind and between these areas, representing respectively the accessory, fundamental, and mixed tracts; whilst in the outer fourth pass the fasciculi of the sensory tract. In high planes and upon the innermost fibres, the deepest layer of the ansa peduncularis passes backwards to the nucleus of the oculo-motor. Lastly, the substantia nigra, peculiar to this region, represents a ganglion, from which the crusta in part arises, and which in itself is but an internode for coronal radiations. THE THALAMENCEPHALON. The region of the thalamencephalon is best exposed within the lateral ventricles, for the study of its superficial parts and their relations; and, for this purpose, a dissection, such as shown in fig. 6, should be made, in which the relative position of the mesencephalon and epencephalon are equally exposed. We here see the two great ganglia, the optic thalami, the pineal gland with its peduncle, the central grey substance (and the commissure) of the third ventricle passing downwards towards the infundibulum, and the two corpora geniculata beneath the hinder extremity of the thalamus indicating the termination of the optic tracts. These, then, form the chief structures constituting the "tween-brain " or thalamencephalon. To appreciate their mutual relationships — their centric and peripheric connections — a careful study of sections carried through this region in three different planes is requisite — viz., horizontal, longitudinal, and vertical-trans- verse ; but a preliminary study of their more obvious external conformation is necessary ere a more minute inquiry is instituted. The reader should refer here to the illustration (fig. 6) given on p. 29. 42 TIIIC TIIALAMEXCEPIIALON. The optic thalami are somewhat oval, wedge-shaped bodies, broadest behind, where they diverge from each other so as to expose the quadrigeminal bodies ; and narrowed anteriorly where they approach the middle line. They are limited externally by thcj stria tePminaliS (cornea), which is also the upper and outer boundary of the thalaraen- cephalon — immediately external to which is the caudate nucleus and its attenuated tail. In front, the thalamus presents a notable prominence, the anterior tubercle ; behind, it projects back as the pulvinar, and forms in the descending horn of the lateral venti'icle the anterior wall or roof of the cornu. Mesially, the thalami are bounded by the peduncleS of the pineal body ; and the vertical median grey walls of the third ventricle do not, as might be conjectured, represent the median aspect of the thalami, but must be carefully distinguished therefrom. In fact, the mesial aspect of these grey masses is here completely concealed beneath the grey matter of the third ventricle, which is identical and continuous with the central grey substance of the cerebro-spinal tube throughout its length. To the thalami, however, belong the middle and posterior commissures which cross the ventricle, and which are really deCUS- sating" meduUated tracts of the thalami. Whilst the inner face of the thalami covered by the central grey substance is perpendicular, the outer presents a kind of obliquely sloping roof resting upon the fasciculi of the internal capsule ; and hence the vertical transverse section of the thalamus is likewise somewhat wedge-shaped in configui-ation. Then, again, it must be re- membered that the thalami in lower vertebrates — birds and reptiles — are very evident projections on the upper surface of the peduncles not included within the hemisphere at all ; and that in man, although they appear thus to project within the ventricles and to be included within the more extended hemisphere, they, in reality, are outside the hemisphere of which the fornix constitutes the median boundary. We have spoken of the thalamus as a somewhat wedge-shaped mass, as seen in transverse vertical sections. In similar sections through both thalami, they conjointly aj^pear like the transverse-section of a boat, keel downwards, in which the arched side rests as on a couch in the concavity of the internal capsule, whilst in the hollow of the keel the thalamus is separated from the capsule by a region known as the sub-thalamic region, in which a sharply-defined, biconvex, lens-shaped body is situated, to which we shall refer later on as the sub-thalamic body (lenticular body of Meynert, or Luys' body of Forel). The anterior end of the thalamus, therefore, is placed at a considerable distance from the base of the brain and the sub-thalamic region — the mass of the cerebral peduncles and the intervening THE THALAMIC PEDUNCLES. 43 substantia nigra being immediately beneath it ; Avhilst tlic whole extent of the central cavities of the third ventricle and its grey walls continuous below with the infundiljulum and posterior pei-foi'ated space, must be excluded from the true thalamic structure. The interior of the thalamus consists of a large mass of grey matter, split into layers in various directions by the medullated strands passing into its structure. The grey matter encloses numerous nerve cells, which are the thalamic termini for coronal radiations connecting the most diverse regions of the cortex with this body, and the centres of origin for fresh strands which pass down into the tegmenhtm of the crus. The arrangement of medullated and grey elements is peculiar. The cortical fasciculi, as they enter the thalamus, diverge within its structure in brush-like fashion, forming concentric lamellte, between which are intercalated the layers of grey matter with their nerve cells. Since medullated fasciculi enter the thalamus from very distant regions of the cortex — from the frontal, occipital, temporo-parietal gyri and gyrus fornicatus- — they necessarily meet at varied angles, and cross each other in their course within the ganglion : thus it is that this body becomes moulded by its medullary cones into apparently distinct segments — not, however, true centres or nuclei in the usual acceptation of the term, since their grey substance freely intermingles with that of neighbouring structures. The cortical contribution to the medullated system of the thalamus approaches that body in part at its anterior extremity by three so-called peduncles — the anterior, superior, and internal (or infei'- ior). These thalamic peduncles connect its structure with the frontal lobe, the sylvian fossa, temporal lobe, and gyrus fornicatus respec- tively. Such cortical fasciculi have necessarily a lengthened course to pursue, and none more so than that from the g'yrus forni- eatUS, which reaches its destination after a peculiarly complex spiral course. The anterior peduncle approaches the thalamus from the frontal cortex through the strands of the anterior segriient of the internal capsule between lenticular and caudate nuclei, interlacing here with its fibres, and eventually passing into the front end of the thalamus, expands brush -like in its interior, its fibres arching backwards, crossing the fibres of the inferior peduncle, and passing chiefly to the outside of the latter. A portion decussates at the middle and posterior commissure, whilst the rest continues directly down the tegmentum. Part of its fibres help in the formation of the capsule of the thalamus or so-called stratum ZOnale. The inferior peduncle, already alluded to as the third layer of the ansa peduneulari?, connected with the cortex of the temporal lobe, passes from beneath the lenticular nucleus up into the thalamus, expanding also in brush- 44 THE TIIALAMENCEPnALON. like manner chiefly along its internal portion, and forming the inner boundary of the thalamus. It also decussates at the middle and posterior commissure to pass down as teymental fasciculi of the crus. Both these peduncular expansions ai'e interrupted by the nerve cells in the grey intercalated layers of the thalamus ere they decussate at the commissures. The superior peduncle takes a still mox-e com- plicated course ; its centric connection is with the cortex of the gyrus fornicatus — appearing first in the two fimbriae or posterior pillars of the fornix arising from the cornu Ammouis; and ascending as the body of the fornix connected by the transverse fibres of the lyra upon the thalamus, it arches forwards at the front end of this body, and thence passes downwards as the two descending" pillars of the fornix. These latter pass back to the corpora albicantia, around which they form a distinct loop, and again turn upwards as the ascending" pillars or bundles of Vicq D'Azyr to terminate within and around the anterior tubercle of the thalamus. Whilst forming this loop around the COrpuS albicans, a portion of its fibres is interrupted by nerve cells within this body, and a fasciculus starts from this site and passes directly backwards into the tegmentum. Whilst the frontal, insular, and median cortex is thus connected by the thalamic peduncles to the anterior end of the ganglia, the posterior or hinder half of the thalamus receives along its outer margin coronal radiations from the occipital and mid-regions of the hemisphere. These fasciculi radiate from the upper and outer border of the thalamus to corresponding regions of the brain opposite them ; the middle section spreading towaixls the mid-regions ; and the posterior arching backwards towards the occipital pole. These latter, as they pass outwards and backwards to the occiput, are associated wdth similar radiations proceeding in like direction from the geniculate bodies and the brachia of the nates and testes. This system of fibres arches around the outer wall of the posterior cornu of the ventricle, and' has long been known as the optic radiations of Gratiolet. In their course they are brought into close association with the sensoi'y fibres of the coi'd destined for the occipital and temporal lobes ; and, as we have previously seen (fig. 6, S), occupying the outer fourth of the crusta. This peduncular sensory tract, it must be remembered, has no con- nection with the optic thalamus, but runs directly into the occipital and temporal regions of the cortex. The coronal radiations which enter this outer border of the thalamus, pass through its structure as arched fasciculi towards the median line, i.e., across the long axis of the thalamus ; the medullated tracts being intercalated by the grey matter common to the whole ganglion. Upon a lower level than CORTICAL CONNECTIONS OF OPTIC THALAMUS. 45 the entrance of these cortical radiations, other medullated fasciculi pass into its substance in an identical manner from the middle root of the optic tract, and this double origin partially severs this hinder region of the thalamus into an upper and a lower segment. In both systems of fibres, hemispheric and retinal (through the optic tract), union of the fibres is effected with the cells of the grey intercalated layers. It has been shown that the peduncles — anterior and inferior — entering the anterior pole of the thalamus, run backwards through its structure as brush-like formations to terminate in cells of the grey matter ere they decussate at the commissures ; and that a larger pro- portion of these fresh fasciculi do not decussate, but pass directly down- wards into the tegmentum. The latter direct fasciculi, in passing into the hinder half of the tegmentum, run immediately across the axis of the optic and COPtical radiations just described; and necessarily form apparent concentric dissepiments in these regions. These laminated dissepiments form the new medullated tracts for the tegmentum arising within the grey matter of the thalamus. The anterior peduncle especially, passing backwards through the thalamus, is not crossed by these transverse radiations, and its region is bounded on the outer side by a strongly-marked medullated belt, the innermost of the concentric dissepiments alluded to, and known as Burdach's lamina medullaris. This well-marked boundary and absence of transverse radiating fibres, maps out a kind of nucleus in this region of the anterior peduncle, which is known as the centre median of Luys. On examining the thalamus from above, after opening-up the lateral veiatricles, it is found that the grey matter forming the tail of the caudate nucleus may, by gentle pressure with a brush, be raised away, together with the stria cornea, from the subjacent parts; and, imme- diately beneath it, radiating fibres in coarse fasciculi are seen passing from the whole extent of the upper margin of the thalamus, either directly outwards towards the parietal lobe, or arching back towai'ds the occipital region. These fasciculi consequently form the outer wall of the lateral ventricle in their course towards the parietal lobe. If the scalpel divide these fibres across pai'allel to the direction of the stria coi-nea, the blade passes directly into the internal capsule, and it becomes evident that the outer obliquely-placed surface of the thalamus rests upon the internal capsule as upon a couch, and gives ofi" from the whole of its outer aspect medullated fibres which enter into the constitution of this capsule, and then spread as coronal radiations to the various districts of the cortex of the parietal and temporo-sphenoidal lobes. The greater bulk of these pass deeply into 46 THE TIIALAMEXCEPHALON. the thalamus, and, as before said (p. 43), are crossed by the brush- like fasciculi of the thalamic peduncles. The more superficial layer first I'evealed upon raising the tail of the caudate, enters into the con- stitution of the white capsular investment of the thalamus {stratum zonale), which gives to this gaugliou its peculiar white hue Avithin the ventricle, as contrasted with the greyish aspect of the caudate nucleus. The capsule of the thalamus spreads inwards as far as the peduncle of the pineal gland ere it turns downwards to form part of the inner investment of the thalamus ; and at this line it disappears from view, and tlie grey matter of the third ventricle becomes apparent. This cajDsule or stratum zonale is itself of complex formation : it receives also fibres from the optic tracts, the upper- most of those which join the thalamus; so also fasciculi from the frontal lobe enter it by the anterior peduncle of the thalamus, and in like manner the most superficial stratum of the ansa lenticularis ; lastly, the gyrus fornicatus sends its contribution hy means of the ascending pillar of the fornix, which in this course embraces a nodular segmented portion of the thalamus at its anterior extremity, termed the anterior tubercle. Hence the zonular layer or thalamic capsule receives fibres from almost every region of the brain — the frontal, parietal, temporo-sphenoidal, and occipital lobes, and the mesial aspect or gyrus fornicatus, as well as the retina. This very extensive retinal and hemispheric connection of the thalamus may be thus tabulated : — Fasciculi from Frontal lobe, . . . Through anterior peduncle of thalamus. Temporo-sphenoidal lobe, , Coronal radiations and superficial layer of ansa lenticularis. Parietal and occipital lobes, . Coronal radiations along its whole outer surface. Gyrus fornicatus, . . Through pillars of fornix. Retuia, .... Through uppermost thalamic connections of optic tract. The Pineal Body and its Connections. — Surmounting the upper pair of the quadrigeminal bodies, immediately beneath the posterior exti'emity of the callosal commissure and in the middle line between the mesencephalon and diencephalon, lies a small, reddish, somewhat conical structure — the pineal body. It is closely attached to the velum interpositum, so that it is frequently torn away with the membranes investing it. It is hollowed into several small sacculi, which contain the gritty, earthy, and amylaceous material termed acervulus cerebri : and the structure is peculiarly vascular. In microscopic structure we find it consists, like other ganglionic struc- THE PINEAL BODY AND FASCICULUS RETROFLEXUS. 47 tares in the brain, of closely aggregated cells, varying considerably in size from 5 /x. to 18 n,. Its connection with the rest of the cerebrum is effected by means of two processes, which are directed forwards along the inner bordei' of the thalami optici, forming a boundary between the latter and the grey matter of the third ventricle; and descending in front in conjunc- tion with the taenia semicircularis and the pillar of the fornix : these are the two peduncles of tlie pineal body or habenula. Tliese peduncles are distinctly ganglionic in structure, and together Avith the pineal body are probably to be regarded, as Meynert believes, as ganglia of origin for the tegmentum. The connections by medullated tracts are twofold — centric and peripheric. The former, as a connection with the cerebral hemi- spheres, takes place through the medium of the stratum zonale, already described as investing the optic thalamus. The latter or peripheric connection is effected by a large and important fasciculus, which passes down vertically from the habenula or peduncle, covered by the grey matter of the third ventricle, and towards the region (at the base) of emergence of the motor oculi nerve on the inner side of the converging crura. In this course it describes a sigmoid bend, and near the base of the mesencephalon it lies between the posterior longitudinal fasciculus, on the median aspect, and the red nucleus of the tegmentum, external to it. Some of its fibres radiate into the nucleus ruber (Meynert) ; but the larger proportion bend at this point immediately backwards at right angles to their former course, and appear to pass into the tegmental areas of the pons and medulla, in conjunction with the posterior longitudinal fascicuhis. This rectan- gular bend has gained for it the appellation of the faSCiCUlus retro- flexUS — it is often termed the style of the peduncle of the pineal body, where it passes vertically towards the red nucleus of the tegmentum. The style or fasciculus retrojlexus may be best exposed by trans- verse vertical sections carried through the ganglion of the peduncle just in front of the quadrigeminal bodies, but it may also be traced in longitudinal vertical sections near the mesial plane of the " tiveen and mid brain." In these sectional planes, however, owing to its sigmoid flexure, a part only of its course can be usually seen. Thus in a vertical longitudinal section of the brain of the dog, near the mesial plane, we find the lower end of this fasciculus about to bend backwards at right angles, and on this plane it is seen to descend in front of medullated fasciculi passing downwards from the posterior commissure and the emergent i"oots of the third nerve. In a section carried still nearer the mesial plane, we see its course about complete, whilst a 48 THE TIIALAMENCEPIIALON. portion of both ascending und descending pillars of the fornix is revealed likewise. Posterior Commissure. — Wo have already traced the anterior and inferiur peduncles of the tlialnmus as far as their decussation in the posterior comniissiire, and it would seem extremely probable that the fasciculus retrojlexus undergoes partial decussation through the medium of this commissure also. Near the mesial line, we can readily ti'ace these decussating fibres of the posterior commissure in their further course passing downwards into the tegmentum, where they bend backwards to pass into the medulla and spinal cord ; whilst prolonged from the posterior commissure backwards is also seen the cross-section of the meduUated fibres of the corpora quadrigemina. In these vertical longitudinal sections taken near the mesial plane, we therefore see three systems of decussating fasciculi crossing at the middle line, and forming periphei'ic extensions from a series of ganglionic bodies, viz. : — The fasciculus retroflexUS, the mass of the posterior commissure, :^nd the quadrigcminal fasciculi called the lemnisci or fillets of the nates and testes. Corpora Geniculata. — Beneath the pulviuar of the thalamus in man we see a small club-shaped body about the size of a coffee- bean, directly continuous with the optic tract anteriorly, and by a notable border separating mesencephalon from tltalamenceplialon, con- nected Avith the upper quadrigeminal body or nates. This small ganglion, for ganglionic it is in nature, is the outer g'eniculate body, and lies in the course of the arm of the nates or superior hrachium, with which it is intimately connected, as it proceeds to the cortex of the occipital lobe. Upon vertical longitudinal section it is found to possess a peculiar plicated arrangement of a medullated and a grey lamina, exhibiting alternating layers of grey and white substance. Internal to this body, that is, nearer the mesial plane, lies another small structure of spindle-shaped outline, immediately beneath the upper and between it and the lower brachium ; it is directed towards the nates by one of its pointed extremities. This structure is the inner g'eniculate body. Both geniculate bodies are connected with the corpora quadrigemina on the one hand, and with the cortex of the occipital lobe along with the other centric fasciculi of the brachia. In a vertical section we find an extensive portion of the optic tract directly continuous with this plicated outer geniculate sanglion, and hence also with the nates. An inner segment of the oi:)tic tract, but much more limited in extent, passes into the internal geniculate and thence to the nates also ; no fibres CONFIGUnATION OF CEREBUAL IIEMISPIIERK.S. 4^ from tlie optic nerve are believed to pass by this tract to the testes. The remaining connections of the optic tract arc the optic thalamus (to the stratuvi zonule and radiating fasciculi previously described) ; and the basal optic ganglion, a small body of grey matter lying beside the tuber cinereiim immediately covered by the optic commissure. The ganglia of origin of the optic nerves, therefore, are the upper quadrigeminal, the outer and inner geniculate bodies, the optic thalamus, and the basal optic ganglion : the centric or coronal extensions arising in these ganglia pass by means of the posterior section of the internal capsule as the optic radiations of Gratiolet to the cortex of the occipital and ( % ) tempoi-o-sphenoidal lobes. PROSENCEPHALON OR FORE-BRAIN. Config'Uration. — We have already seen that divei'gence of the brain-stem in the crura cerebri to reach either hemisphere, entails also the more and more complete severance of the various ganglionic masses at the base with which it is brought into connection : and that from the bilateral fusion of the mesencephalon, we pass forward to the divergent masses of the thalami (diencephalon), and thence to the still further severed corpora striata, constituting the ganglia of the fore-brain (prosencephalon). We have seen how these more divergent masses are braced together by sling-like loops of medulla, such as the ansa lenticularis, and united mesially by the anterior and other commissural ti^acts. The ganglia of the prosencephalon form the most anterior mass of grey matter surrounding the peduncular extensions, and are so disposed as to constitute two incompletely-severed masses ot' grey substance, whose configui-ation shadows forth the form assumed by the hemispheric envelope moulded around them. The flexure of the fore-brain, whereby this hemispheric arc reproduces the contour of these ganglionic structures, has its site at the fissure of Sylvius ; and in foetal brains, ere the further differentiation of the cortex into its varied longitudinal and transverse fissures has proceeded, we see readily how the hemispheres are, so to speak, moulded after the form of their subjacent ganglia. The axis of this flexure is constituted by the most external of these ganglionic masses, the so-called lenticulaP nucleus, wedge-shaped in form, its base directed forwards and out- wards, covered by the cortex of the insula — its apex downwards and inwards towards the cms cerebri. Around this wedge-shaped axis, the ganglionic and hemispheric arcs are severally formed — the ganglionic in the form of the caudate nucleus : the hemispheric beginning at the 50 THE PROSENCEPHALON. orbital aspect of the frontal, sweeps round the fronto-parietal to the tip of the teniporo-sphenoidal lobe. The more flattened aspect of the retjion of tlie insula, therefore, bears the impress of the base of this lenticular axis of revolution, whilst the more spheroidal contour of the hemisphere conforms to the curvature of the caudate body. Upon this constructive principle largely depends the divergence observed in the primitive contour of the cerebrum in various animals JV.c Fig. 7.— Section through hemispheres (vertical transverse) through plane of middle commissure. I^.c, Tail of caudate nucleus. C.c, Corpus callosum. F, Fornix and choroid plexus. a, Internal capsule. T.o, Optic Tlialamus. Cm, Middle Commissure. C.e, External capsule. CI, Claustrum. 1, 2, 3, Three segments of lenticular nucleus. and in man. Although identical in the nature of their histological constituents, these two ganglionic masses differ widely, not alone in their rough contour, but in their quantitative relationships : in certain brains, the caudate nucleus assumes a mass far out of all proportion to the lenticular ; whilst in man, the former is dwarfed, and the latter assumes a relatively important role. The greater magnitude assumed by this lenticular axis of revolution, the greater the scope for the unfolding of the hemispheric arc, and the more important the develop- mental features assumed by the regions of the insula and sylvian LKNTICULAR AND CAUDATE NUCLEI. 51 fussa. On the other hand, the smaller lenticular body, and the larger proportionate development of the caudate bespeak a brain of simple configuration, more spherical, less complex in convolutionary arrange- ment, and of more uniform symmetry throughout. In thus indicating their impress in the configuration of the cerebral vault, these striate ganglia differ widely from the diencephalic gang-lia previously considered, the thalami Optici ; in fact, these latter bodies, so far from having any portion of the cerebral hemi- sphere moulded to their form, are themselves wholly outside the cerebi-al envelope in their mesial position. Thus, the adult brain witnesses to the genetic relationship of the cerebral hemispheres, and the related striate ganglia : the whole mass in front constituting the fore-brain or prosencephalon in advance of the thalamence- phalon. We have spoken of these basal ganglia as incompletely severed masses of grey matter, a statement at once verified by vertical sections taken in anterior planes through these bodies. In such antei'ior planes, the medullated interval elsewhere separating these bodies is bridged by numerous broad bands of grey substance which are but extensions from one to the other ganglion ; whilst, at the base, complete fusion occurs between the two, the head of the caudate nucleus merging into the frontal extension of the lenticular, becom- ing so superficial at the base as to be merely covered over by the orbital medulla and the grey matter of the anterior perforated space with which it becomes continuous. Caudate Nucleus. — The innermost or intraventricular nucleus of the ganglion of the fore-brain, and the only portion superficially seen within the lateral ventricles, is of pyriform shape, with a long attenuated tail-like process extending into the temporal lobe. In this coui-se, as before explained, it is bent upon itself, its axis of revolution being the lenticular body. The head of the ganglion fusing at the base with the lenticular, arches forwards and inwards towards the septum lucidum, and lying on the inner aspect of the internal capsule, embraces, in this first part of its course, an important medullated fasciculus, which connects the coi'tex of the frontal lobe with the antei'ior extremity of the optic thalamus, the so-called anterior thalamic peduncle. In its further course, it ascends above the level of the lenticular, and lies upon the internal capsule ; its tail-like extension resting, opposite the thalamus, upon the hemi- spheric fibres which pass beneath it, to form the capsular investment of the thalamus [stratum zonule). Still further back, the tail arches downwards into the descending liorn of the ventricle, and can be traced upon the roof of the latter as far forwards as its anterior 52 THE PROSENCEPHALON. extremity, wliere it terminates in a somewhat bulbous end, liaving immediately in front of it a mass of grey matter, termed tlie amyg'dala. It will be seen from this descri])tion that the bulbous extremity of the tail extends almost as far forwards as the head of tlie caudate nucleus, and thus describes an almost complete loop around the internal capsule and thalamus, hence termed the *' SUrcingle." The -whole course of tliis loop can be well demonstrated l)y veitical longitudinal sections of the hemisphere ; whilst vertical transverse sections anywhere between the amygdala and posterior end of thalamus reveal the ui)))er and losver segments of the surcingle, as isolated grey masses above and below the thalamus. Each of these prosencephalic ganglia has a surface perfectly free, that is, devoid of meduUated attachments — and other aspects, -svhich present the termini of centric and peripheric sti'ands. Thus, the ventricular aspect of the caudate together with the base of the lenticular wedge (insular aspect) are alike, smooth and devoid of medullated connections : whilst the opposed surfaces, separated by the intervening capsular fibres, as well as the basal or inferior aspect of the lenticular nucleus, are the surfaces for the termination and departure of the numerous medul- lated connections of this with distant regions. Since the lenticular body lies beneath the internal capsule, its temporal extremity is sepai-ated for some distance by that formation from the temporal extremity or cauda of the intx'aventricular nucleus. Posteriorly, however, they approach each other, and bridges of grey niatter connect them, separated by medulla. They are also separated here by the centric extension (brachiura) from the external geniculate body ; and finally along the roof of the descending cornn these two temporal extremities fuse together, forming the lower segment of the snrciiKjle. The constitution of the surcingle, therefore, is diflerent in its upper and lower arc, being purely an extension of the innermost nucleus above ; but formed out of the fused tempoi-al extremities of both prosencephalic nuclei below. It cannot fail to impress the student that the ganglionic structures and their extensions, so far described, encircle in a series of loop-like formations the medullated core which passes from the spinal cord and medulla upwards as peduncles and capsule to the cerebral hemispheres. First, thei-e is the mesencephalon, the quadrigeminal bodies, each throwing downwards its loop-like Jillet or leimdscns ; and throwing upwards its centric arm in the form of the hrachia. At a liigher level, the thalamencephalon shows us the optic thalamus astride the posterior edwe of the internal capsule arching backwards around it to form the roof of the descending horn of the lateral ventricle; whilst its centric extensions pass upwards to the cortex from its outer surface beneath the STRIA TERMINALIS — OLFACTORY AREA. 53 tail of the caudate. Then still higher M'e get the arcof the caudate body asti-ide the anterior edge of the internal capsule with its long tail-like loop also passing down the roof of the descending cornu'^in'conj unction with that of the lenticular : whilst still further outwards is the mass of the internal capsule becoming free as coronal radiations to the various parts of the hemisjihere. For descriptive purposes it is convenient to distinguish between uppGP or ventPiCUlar, and lower, cornual or temporal arc of tlie surcinfjle: tlie caudal extremity', the body of the caudate nucleus, and its caput directed towards tlie base : whilst we also s):)eab of its ventricular and capsular aspects. In like manner the lenticular nucleus has its frontal, its temporal, and peduncular or crustal extremity; its insular aspect (or base of wedge), its inferior aspect, its capsular aspect. So also the capsular constituents may also bear the convenient terminology — COrtlCO- Striate and COrtiCO-lentiCUlar fasciculi for the] centric bundles : pedunculo-striate and pedunculo-lenticular for the peripheric bundles : direct peduncular for those uninterrupted by the prosen- cephalic ganglia. Stria TerminaliS. — A glistening white band of fibres, strongly contrasting with the adjacent grey cauda, varying from one to two millimetres in diameter, lies along the inner border of the tail of the caudate body throughout its whole length, extending ^from the tip of the temporo-sphenoidal lobe along the roof of the descending cornu, and along the upper arc of the surcingle betwixt it and the thalamus, as far as the anterior end of the latter. Inferiorly it is distributed to the amygdaloid nucleus ; and by Meynert is regarded as ai'ising from the head of the caudate nucleus. Schwalbe, on the other hand, regards this conclusion as dubious, and expresses the ojoinion that it possibly has no connection whatever ^with the ganglion. By other authorities — Meckel, Arnold, Jung, and Luys — this arciform "band has been presumed to terminate in the descending pillar of the fornix. This lengthened arciform structure, which has been also called the tsenia semicircularis, would appear from its greater proportionate development to be an important structure in the brain of rodents ; in the dog, on the other hand, it is comparatively insigni- ficant in size. In the rabbit it can be clearly seen to consist of a superficial and deeper fiisciculus at its termination, and to be con- nected throughout its course with the caudate nucleus : the latter arches downwards behind the anterior commissure just to the inside of the lower margin of the internal capsule, as seen in vertical sections: these fibres appear to terminate in the area at the base known as Gratiolet's olfactory area— embraced, in fact, within the trigonum 54 Tin; imjosknckimialon. olfactOPium. It would be liazardous to affirm that none of the siipL'iticial fibres enter the descending pillar of the fornix, as stated by several authorities ; but in the rodent it appears easily demonstrable that this fasciculus, in great part at least, enters the anterior com- missure from beliind in such a direction as to ensure decussation, and so bring the hippocampal region and caudate nucleus into crossed relation- ship with the olfactory bulb.* We shall refer to this connection further on when dealing with the relationships of the anterior com- missure. Lenticular Nucleus. — Although in section both vertical and hori- zontal, this ganglion exhibits a distinctly wedge-shaped contour, its name of lenticular is justified upon inspection of its outer or insular aspect. This can only be done by freeing it of its medullated connec- tions — an opei'ation readily efi'ected either by dissection or the brush, the ganglia being held beneath w-ater, whilst the medullated invest- ments are dissected off or brushed away. In this manner it is easy to isolate the two ganglia of the prosencephalon attached to each other, for the pux-pose of recognising their fundamental configuration. The lenticular then appeal's to be a distinctly lens-shaped body, especially if looked at from above, where a section of the internal capsule at the foot of the COrona radlata separates it from the caudate nucleus within. It will then also be apparent that the caudate applied at first to the inner side of the internal capsule and lenticular mounts higher and higher so as to lie with its attenuated tail U2)0n the former and above the latter. The smooth lens-shaped exterior of this structure is overlaid by a medullated investment — the external capsule, loosely applied to it, occasionally the site of haemor- rhage, which, breaking into the intervening tract, separates it from the surface of the lenticular. External to this capsule comes the claustrum, and lastly the medulla and cortex of the insula or island of Reil. Upon section this ganglionic body shows a well-defined triple segmentation — dis- tinguished by the grey aspect of the outer, and the increasing pallor and tawny pigmented aspect of the more internal segments; the inner- most and largest which is notably pale and pigmented being designated the globus pallidus (fig. 7). These three divisions are not merely distinguished by their diflerence in colour, but are separated by well- marked dissepiments called laminae medullares, which, as thin medullated partitions descend from the internal capsule down to the basal aspect of the brain, lying concentrically to the insular *See "Comparative Structure of the Brain iu Kodents," by the Author, in the Philosophical Transactions, part ii., 1882, page 730. TUE BRAIN IX LOWER VERTEBRATA. 55 aspect of the gangliou : two and sometimes three such dissepiments exist. The medullated fibres forming these dissepiments, and arising from the internal capsule, bend inwards at diSerent points to form radial fibres all directed towards tlie peduncular end of the wedge; a certain proportion, however, comjjletely traverse the lenticular as laminae meduUares ; and escaping at the base of the ganglion pui'sue their course towards the crusta, as a sort of capsular sling, covering the base of the lenticular and forming one layer of the so-called arisa lenticularis already refen-ed to. Since each segment is traversed not only by fibres originating in the cells of its territory, but also receives those passing into it from an outer segment and its medullary laminse, it follows that the narrow or peduncular end of the wedge becomes constituted by a closely packed system of medullated fibres where they enter the crus cerebri ; and it is this preponderance of fibre over grey matter which gives to the inner segment (globus pallidus) its characteristic pallor. THE ENCEPHALON AS A WHOLE. Comparative and Embryolog'ical.— The earliest indication of a brain in the vertebrate series consists in a slight bulb-like dilatation at the end of the neural tube. This is all that ever occurs in the low^est form of vertebrate animals— the amphioxUS or lancelet, which therefoi'e presents as a permanent structure the earliest, but transitory, phase of development, through which all higher vertebrata pass, even to man himself. A step higher, the lamppey exhibits a large pyriform dilatation of the neural tube, and retains for a long period this rudimentaiy form, which, however, in comparison with its spinal system, bears to it scarcely a higher pi'oportionate size than do the cephalic ganglia of insects to their ventral ganglia. Still higher in the vertebrate series, in flshes and amphibia, we find that this bulb-like distention of the neui-al axis becomes very early transformed by ti'ansverse constrictions of the former elongated bulb, into a series of five pairs of vesicles, which lie in linear series, one behind the other, and which are reproduced in every form of verte- brate, higher in the series, at a certain stage of its developmental history. These five vesicles represent what in higher animals become respectively the fore-brain or cerebrum, the twixt-brain, the mid-brain, the hind-brain, and the after-brain. These several parts in fishes and ampliibia represent elements of the higher vertebrate brain, which remain ])ermaneut in them, but subject to most diverse modifications in structural complexitv and in relative 56 THE ENCEPIIALON — COMPARATIVE. preponderance of one or other segment. The lully developed brain in fishes presents great variety in the relative size of the individual lobes. Tn the first place, the early ditl'erentiation between the vesicle of the twixt-brain and mid-brain becomes obscured in most fishes, so that the fully formed organ shows us but four gangliated swellings, lying one behind the other in scries, and representing (1) the Cerebral hemi- spheres; (2) the optic lobes; (3) the cerebellum; {i) the medulla. The two former, as seen in the brain of the perch, are disposed in pairs, whilst in front of the cerebral hemisi)hei-es we see yet two small bulbous swellings, from which arise the olfoctory nei'ves, and which are called, therefore, the olfactory g'ang'lia. These ganglia are absent in the Shark, Skate, Whiting, Szc, and are replaced by an elongated peduncle capped at the extremity by the ganglia as in man. The cerebral hemispheres in fishes are usually smaller than the optic lobes, e.g., in the Whiting, Carp, Pike, Perch ; but in the Shark, the Skate, the Lepidosiren, and others, they very greatly exceed these lobes in their dimensions. Behind the cerebral hemispheres appear the optic lobes, which in the fish, it must be remembered, represent the thalamencephalon (thalamus and third ventricle) as well as the mesencephalon (or in man what corresponds to the corpora quadri- gemina). Thus, if we turn to the brain of the perch, we see in front the two small olfactory lobes, followed by a lai'ge pair of cerebral hemispheres, and these in their turn by the still larger pair of optic ganglia, with a small tubercle projecting in front between them and the cerebrum. This latter body is the pineal g'land, indicating the neighbourhood of the thalamencephalon, with which it is connected. At the base the same structures are seen in front; but the optic lobes present two peculiar lobulated bodies called hypoaria or the lobl inferiores, whose significance is unknown: they are peculiar to fishes. From the centre pi-ojects the pituitary body, whilst the optic nerves are seen to originate from the base of this ganglion, and cross (without decussation of fibres) to the opposite sides. In insects these optic lobes repx'esent the chief part of their cephalic ganglia. Behind the optic lobes comes a single tongue-like lobe — the cerebellum — the size of which apparently bears a direct relation to the power and muscular activity of the fish. Thus the rapacious shark has an enormous cerebellum, w^hilst in the more sluggish fish, it is relatively small; in osseous fishes it is usually con- siderably below the size of the optic lobes. The last division of the brain is the medulla, lying immediately behind and beneath the cerebellum, ni;i])ped oil from the spinal cord by its somewhat larger size, and the origin of numerous im])oi'tant nerves. THE BRAIN IN AMPHIBIA, REPTILES, AND BIRDS. 57 In amphibia, the brain presents a smaller cereljellum than in fishes, corresponding with their more toi'pid habit. The reptilian brain difiers from that of fishes, chiefly in the smaller relative size of the optic and olfactory lobes and cerebellum — the latter being often a mere delicate transverse band across the upper part of the medulla ; and in the relatively large size of the cerebral hemispheres, which partly overlap the optic lobes and exhibit a distinct striate body. The cerebellum is especially large in the crocodile. The hemispheres are connected as in fishes by an anterior commissure. In birds, the cerebral hemispheres exhibit a great developmental advance. They are very large, and cover more or less completely the Clitic lobes. The cerebrum contains a distinct cavity, corresponding to the lateral ventricles, and communicating with the hollOW peduncle of a small olfactory lobe in front. From the floor is developed a gangliated mass — the corpuS Striatum. The optic lobes (corpora bigemina) are two smooth, rounded, egg-like bodies, just apparent from beneath and behind the hemispheres ; widely separated, but communicating through a hollow passage which also leads into a channel between the third and fourth ventricles. From below we see the optic nerves arise and distinctly decussate aci'oss the middle line. The cerebellum is also of large size, but chiefly consists of the middle lobe. The germinal area of the mammalian ovum reveals at an early stage the medullary g'rOOVe, as a longitudinal and gradually deepening channel in the fore-part of this area — at first of uniform diameter throughout, but soon becoming widest at one end — the cephalic. The groove itself results from the thickening of the outer germ layer or epiblast in two parallel linear streaks, corresponding in direction to the long axis of the embryo. The thickening of these parallel ridges proceeds until the groove thus produced is covered in by the bending across and coalescence of these its walls — the so-called medullary folds. Thus, the medullai-y groove becomes converted into the closed canal destined to become the cerebro-spinal cavity, and now termed the neural canal. At its fore end, this canal is dilated into a bulb or vesicle— the primary cerebral vesicle; whilst shortly afterwards two other vesicles, separated by constrictions of the neural canal, form along this end of the canal immediately behind the first vesicle. These three vesicles, placed one behind the other, lie in a straight line with the axis of the neural canal, and are termed respectively the VCSiclCS of the fore-brain, the mid-brain, and the hind-brain. Vesicles of the Fore-brain. — From the first of these, a lateral bulging on either side becomes soon apparent, and, steadily increasing, 58 THE KNCEPIIALON — KMlJRYOLOfllCAL. is lit last merely connected with the former by a narrow constricting neck or tubular stalk. These give origin to the more important structures of the eye and are termed the optiC vesicles. By an exactly similar process, two other lateral bulgings from tlie fore-part of the first cerebral vesicle become differentiated therefrom ; and these are destined by rapid growth and development to become the most important and conspicuous parts of tlie cranial contents. They form the cerebral hemispheres <>r prosencephalon. At the second month of intra-uterine life, they are mere insignificant AmpuUaj, of somewhat oblong form; but even now presenting a short tubular extension from their tip, which is the rudiment of the olfactory lobe. The remaining portion of the primary vesicle in its median position enters into the constitution of the parts around the third ventricle. It has consequently been named the vesicle of the third ventricle, or the tween-hrain, or from giving origin to the optic thalami — the thalamencephalon. Hence the two pairs of vesicles, the optic and hemispheric, have their genetic origin from the thalamencephalon, and a direct connection between these structures is maintained during all later stages of development. The cerebi-al hemispheres, as offshoots from the primary cerebral vesicle, are hollow vesicles, communicating with each other and Avith the cavity of their parent vesicle, the third ventricle, by means of the foramen of MonrO. As the walls of the hemispheric vesicle gain in thickness, its cavity becomes of course more and more encroached upon ; yet, for a long period during uterine life, the growth of this vesicle is so rapid tljat its cavity is of great size ; this cavity forms therefore a relatively capacious ventricle — the lateral ventricle. In the outer and lower wall of the hemispheres thickening proceeds to the extent of forming a large ganglionic mass, the corpora striata or g'ang'lla of the fore-brain. These ganglia, it is to be noted, are not directly derived from the primal neural tube, but from an offshoot of the latter — the hemispheric vesicle. The posterior moiety of the first cerebral vesicle in like manner exhibits a thickening of its walls, which form the ganglionic mass of the optic thalami, connected behind by the posterior covimissure, just above which a small median projection forms — the 2^ineal gland : its floor upon the other hand, sends downwards a conical projection — the infundibulum, wliich later on unites with the hypophysis cerebri or pituitary body, immediately over the pharynx or extreme end of tlie aliuu'utary canal. The funnel-shaped extension of tlie third ventricle is by some regarded as the representative of the neuro-enteric canal, which establishes connection directly between the cerebral and caudal extremities of the alimentary canal and the central canal of the cerebi'o-spinal system. The upper part or roof of the thalamen- DEVELOPMENT OF BRAIN-SEGMENTS AND FLEXURES. 59 cephalon becomes thinned out into a mere lamella of pia mater, covering tlie tliird ventricle as the velum interpositum. The second cerebral vesicle or mid-brain exhibits no such budding off of secondary parts as does the primary vesicle; its upper hemisphere becoming thickened, ultimately forms the quadrigeminal bodies : its lower hemisphei-e or floor in like manner develops into the crura cerebri or cerebral peduncles : whilst the central cavity thus encroached upon becomes eventually reduced to an exceedingly narrow channel, continuous in front with the third ventricle, and behind with the hollow of the third cerebral vesicle — this channel is the sylvian aqueduct or iter a tertio ad quartum ventriculum. The ganglia of the mesencephalon or corpora quadrigemina are not completely differen- tiated until the sixth or seventh month of inti'a-uterine life. At the sixth month, a vertical groove severs the vesicle into lateral pairs ; at the seventh month, a transverse groove separates the upper pair or nates from tlie lower pair or testes. The third cerebral vesicle or hind-brain becomes differentiated into two segments — an upper, immediately behind the corpora quadri- gemina, from which is derived the cerebellum, pons, and upper part of the fourth ventricle ; and a lower, forming the lower half of the fourth ventricle and medulla oblongata. The roof of this lower segment thins away to such a degree that, like the velum interpositum, it also becomes a mere membrane closing in the ventricle at this site. The upper segment is termed from the cerebellum the hind-brain or epencephalon, the lower segment the after-brain or meten- cephalon. The Cranial Flexures. — At a very early date, the first cerebral vesicle begins to curve downwards around the extreme end of the notOChord, until from being in a line with the latter and longitudinal axis of the embryo, it becomes placed vertically at right angles to this axis. An angle or bend thus occurs between it and the middle vesicle, which, in its turn, becomes most prominent and in a line with the notochord. A second bend in consequence of this flexure also occurs between the middle and the posterior vesicle, or that portion of it which becomes the cerebellum ; a third takes place between the latter and the hinder half of this vesicle, which becomes the medulla Oblong'ata ; and yet another between this region and the commence- ment of the Spinal Cord. These cranial flexures, which occur between the first cerebral vesicle and its derivatives, tlie Quadrigeminal bodies, the Cerebellum, the Medulla oblongata, and the Cord, are stated by Tiedemann to take place about the seventh week. In the further process of development the cerebral hemispheres or prosencephalon enlarge wholly out of all proportion to the hindt r 60 THE CERKHIJAL COUTKX. )):ii*ts of the neunil tulu', so (liiit tlic i|u;ulrii^(.'iiiiiiiil luxlies wliich hitherto, as in iiniinals, have had a relatively large bulk compared with the cerebrum, become now placed quite in the shade beside the rapid advance made by the cerebral hemispheres. They extend upwards and backwards, covering and concealing the thalamus by the third month, the corpora quadrigemina by the sixth month, and the cerebellum by the seventh month of intra-uterine life. Long prior to these last changes — in fact, about the fourlli month, a slight depression appearing on the outer as[)ect of each liemispliere midway between its anterior and posterior extremity, indicates the j^osition of the sylvian fossa; and were a horizontal section of the liemisphere carried tlirough this depression we should find the walls of the vesicle within much thick- ened at this point, the thickened mass })votruding into the central cavity as the rudimentary striate g'ang'lia. This fossa, which is seen early in all mammalian bniius, becomes the insula, island of Reil, or central lobe, whilst tlie cortical structure, thickening around it, forms a distinct fissure, the Sylvian fissure, Avhose upper and lower margins encroach upon and cover the "island" from view. Up to the fifth month, however, the fissure of Sylvius remains patent, exposing the island to view. The fissures of Rolando often appear about the end of the fifth month, whilst together with the fissures of the frontal lobe, they are prominent objects on the surface of the hemisphere at the termination of the sixth month of uterine existence. About the same time also appears the internal parieto-occipital fissure on the inner aspect of the hemisphere, mapping ott" the occipital from the parietal lobe on its median aspect. This fissure in its descent meets tlie hippocampal fissure at the point wliere its posterior exten- sion forms the so-called calcarine fissure. THE CEREBRAL CORTEX. The fundamental divisions of the encephalon, or brain, in mammals are identical with those existing in the whole vertebrate series of skulled animals (Craniota). The early history of embryonal existence is alike for all — each animal higher in the scale, even the highest — man, rei)roducing at an early period of embryonic development, as a tran- sient condition, the features permanently stamped in those of a lower grade. Tlie infinite degree of complexity ultimately obtained by the mammal's brain is ])retigured by the forms assumed in the lower classes of vertebrata, and depends, for the most part, upon tlic preponderance of certain divisions of the encephalic mass over others, and also upon the growing complexity of individual parts, either as the result of .'■■■=v^;;rf '^ )< ?: I ^'x* .. i. >-*;\ U i> >-„i »1 W' ^"'f ■ -^^ *^- •'• CH] Exira Ir Liiiiiiil Modvftei. Upper li Brain of Ra'o Mesial aspect, "basal asv DistxiTD-ution of varioiLs nated types of Corte: ^ "Motor Typ e " :dr?.-lir:i'^ic are-, cf R-^btdt's Bra-ji METHODS OF ENQUIRY. 61 increasing clifFei-entiation of existing strnctnres or the addition of sujipleniental parts in the form of gaugliated masses or fibrous tracts. In the mammal's brain we find the first condition exemplified in the complicated convolutionary surfaces of the cerebrum ; in its division into lobes and lobules; in the wondrous complex structure of its cortex. We find the second exemplified by certain ganglionic out- growths from the oi'iginal bi'ain-vesicles, and along its fibrous tracts in the large striate and thalamic ganglia, in the lenticular body, the optic basal ganglion, the corpora geniculata, and others ; and yet again in the extreme development of the callosal and other connecting systems of the brain-mass. The endless diversity of richly-convoluted brains in mammals introduces no feeling but that of confusion to the mind of one who has not studied the cerebrum in its various forms as pre- sented by the whole range of mammalian animals ; in fact, a compara- tive investigation can alone teach the student the significance of its complicated mantle, and help him towards recognising homologous parts in the series. Great advance has been made towards this end by the labours of Gratiolet, Ecker, Turner, Broca, Huxley, who, amongst other valuable results, have introduced a definite nomenclature which reduces to precise terms, universally intelligible, the statements of different workers in this department. Another field of enquiry has of late added rich results in the same direction — the physiological. From that epoch in the historical development of Nervous Physiology when it was discovered that the cerebral cortex was excitable to electric stimuli, with patient toil have questions been pvit and answers received by this method of research, and a mapping out of the complicated fields of the cortex into physiological territories established by Ferrier, Hitzig, Horsley, and others. Another field of enquiiy has received but scant attention, yet it is one which an accurate scientific know- ledge of the cortex must make its own : I refer to the histological structure of the whole cerebral mantle in its various districts, as supplemental to the coarser examination of its medullated tracts by the cleavage methods of Gratiolet, &c. It is but a natural a prioi-i conclusion that differentiation in cerebral function implies likewise a structural diflerentiation, and that this latter is one of qualitative as well as qiiantitative vali;e. We naturally look for an alteration of structure as well as disposition of individual elements, and the increas- ing heterogeneity of such individual parts we regard as the logical outcome of the law of evolution. Thus it is we expect the physiological areas ascertained by Ferrier to exist in the brain of the monkey and other animals to exhibit a structural differentiation characteristic of those parts, and hence to be 62 THE CEREnRAL CORTEX. helpful in the recognition of analogous regions in other orders. If it can be established that areas whose functional endowments are familiar to \is present xiniformly specialised anatomical features, we may reasonably conclude that other structui-ally differentiated areas whose functions are unknown to us at present nevertheless have each and all of them diverse endowments. An attempt to delineate the homologous areas of the cortex in the different orders of mammalia by simple inspection would (on a jn-ioi'i grounds) only lead to failure ; indeed, errors have already been frequently committed with respect thereto: the method of physiological experimentation can alone lead to conclusive results. But, meanwhile, we should not neglect the important consideration of making ourselves acquainted with the intimate structure of the cortex, wliich also has its own special significance, and which would frequently enable us to avoid the error of drawing our analogies from a mere superficial resemblance of the convolutionary surface. The grey matter enveloping the exterior of the cerebral hemispheres, the cortex cerebri, merits our most careful stvidy, as being pre- eminently the site of those deranged functions and pathological pro- cesses which express themselves in mental disease. Whatever the limits our definitions compel us to impose upon the sphere of con- sciousness, all are agreed that here, in the wondrous web of nerve cell and nerve fibre, take place those activities which underlie the conscious states we denominate mind. It becomes, therefore, an essential part of the training of the student of Mental Disease to render himself practically acquainted with the structure and functions of the cerebral cortex — the "tissue of mind." This grey envelope which receives the terminal extensions of the ingoing channels of com- munication with the outside world, on the one hand, and forms, on the other hand, the origin for the outgoing currents of the same, plays a supreme role in the nervous hierarchy, and to it all other centres of grey matter are subordinate. In the human brain, the cortex is con- tinuous all over the hemispheres, dipping into the various sulci between its convolutions, and terminating at the median constricting ring through which the bi-ain-stem of the peduncles passes and the great commissural tract of the corpus callosum. The distribution of the surface into intricate convolutionar}'" folds such as occur in man, is at the outset somewhat perplexing to the student. Far better is it in his case to study the brain of some of the lower animals, which present a smooth non-convoluted surface, and gradually extend his inquiries to the convoluted bi-ain of higher animals, and, lastly, of man. Beginning thus with the simpler forms of life, he is better able to appreciate in the wonderful architecture of even these simple brains the profound intricacy of the nervous centres NERVE-CELLS OF TUE CORTEX. 63 of man : he meets with fewer obstacles at the outset to discourage his attempts, and he lays the foundation for a comparative knowledge of the brain, which will be of inestimable value to him in his subsequent studies. We shall adopt this plan in the following study of the cortex cerebri, and commencing with the brain of a small Rodent, which is a smooth- brained animal, take the Rat as our illustration. Histological Elements. — In the first place, what are the elemen- tary constituents of the cortex? This is a necessary question to dispose of, ere we pass to their local distribution, regional preponder- ance of certain elements to the exclusion of others, and their relation- ships to underlying tracts of medulla. The elementary constituents of the coi'tex are (a.) Nerve cells. (b.) Medullated and non-medullated nerve fibres. (c.) Connective meshwork of "neuroglia cell and fibre." (d.) Blood- vascular supply. (e.) Lymphatic supply. (a.) Nerve Cells. — The nerve cells distributed through any one part of the cortex, with a few very local exceptions, are by no means identical units ; a vast difference is observed in their size, contour, constitution, connections, their locality and groupings at different levels; and it is upon these divergencies that we base our classification of such elements into several typical forms. With respect to these cells, authorities are at variance — Luys, Arndt, and Stephany ad- mitting but the pyramidal form, whilst Meynert describes three varieties — the pyramidal, the granule, and the spindle form.* We find, however, much diversity in form — recognising some six, if not seven, varieties ; and are inclined to attribute the discrepancies between difterent writers to the infrequent examination of fresh frozen sections : such preparations alone reveal the typical forms of some of these elements. As to the deforming influence of chrome re- agents in the preparation of sections of the cortex, we have elsewhere pi-actically shown the necessity of checking this method by the results obtained by means of sections of fresh bi'ains.f The varieties of nerve cell met with in the cortex of the cerebrum may be distinguished into (1) angular; (2) granule ; (3) pyramidal; (4) motor; (5) inflated or * " The Brain of Mammals," Theod. Meynert, in Strieker's Human and Com- parative Histology, vol. ii. Psychiatry, by Theod. Meynert, transl. by Sachs, p. 61. tSee on this point an article in Brain, vol. i. 64 THE CKHKHKAL CORTRX. globose ; (6) spindle cell. Tliese elements can be readily demonstrated in the different regions of the cortex of the Rat or Rabbit, which the student is recoinniended to examine as comprising within a small space all the elements described in this section. (1) The ang'Ular cell is of very irregular contour, occasionally ajiproaching an oval, a pyriforra, or even a fusiform outline. It quite as frequently assumes more of a pyramidal, and still more frequently an inverted pyramidal contoui-, due to a bicorned formation of its iippermost pole ; in fact, its distinguishing feature is this great irregu- larity in form. These cells peculiarly characterise the seCOnd layeP of the cortex, and may be well seen in the g'reat limbic lobe of tlie Pig or of the Sheep. To see its more notable develojjment, we must turn to the lower arc of the limbic lobe in the Rat or Rabbit, or what corresponds to the gyrus hippocampi. Here, within the area limited by the limbic sulcus (Plate i., a.t.c), are seen dense clamps of these irregularly-shaped nerve cells closely appressed, usually measuring 18 II, X 10 /A in size, with a nucleus of 9 /x in diameter. An important character borne by these irregular elements is the relatively large size of the nucleus, as compared with the protoplasm of the cell ; this featui'e, seen in these elements in the rodent, in the sheep, the pig, and other mammals, is also seen in the cortex of man.* In OSmatiC mammals, it forms, as we shall see, a special cortical type, and we are struck further by the dense meshwork of ramifications which arise from its outermost branches. The angular cell may be i-ecognised at other levels, but it is here (gyrus hippocampi) that its richest develop- ment occurs. (2) The granule cell is a small element, averaging 10//. x 8 ,a in size, and many not larger than 9 //, and witli a nucleus of 4 /x to 5 /i in diameter. Slightly conical in form, with relatively large nucleus, the delicate pi'otoplasm extends into several extremely fine processes : an apical process being also often present. This element forms an im- portant constituent of sensory realms of the brain, and may be seen as a densely grouped formation in what we have elsewhere described as the modified upper limbic type in the rodent f (Plate iv., fig. 1). In the histological study of the cortex, these two varieties of cell — the ang'Ular and the g'Panule — are so diverse in forms, and their regional distribution is so distinct, that it would be inexcusable to confuse the two formations as of identical constituents. Meynert aptly compares *"The Cortical Lamiuation of the Motor Area of the Brain," Proc. Royal Soc, No. 1S5. t"The Comparative Structure of the Brain in Rodents," Philosoph. Trans., partii., 1882, p. 709. GRANULE, PYRAMIDAL, AND MOTOR CELL. 65 them to tlie internal gi-anule layer of the retina and the elements in the gelatinous nucleus of the great root of the fifth nerve, or of the "granule layer" of the cerebellar cortex.* (3) The Pyramidal Cell.— From its uniform contour, large size, very general distribution (regional), and depth of formation, this cell has come to be I'egarded by many as pre-eminently tJie nerve element of the cortex. As in the case with the first described element, the angular, for want of a better designation, these elements are likewise ill-named. Pyramidal is a name appropriate only to those cells which have undergone the corrugating effects of chrome, other hardening reagents, or desiccation. In the fresh state they are wholly different in con- figuration from those seen in hardened specimens. On the other hand, Meynert is far too exclusive in stating that their true form is that of a spindle; in fact, they are very variable in form, often plump and rounded ofi" at their base, lengthened out and attenuated at their apex. The pyriform contour is very general — minute angular projections of protoplasm on all sides mapping out the origin of delicate processes. Occasionally they are elongated and truly fusiform, especially in certain definite regions of the cortex ; and yet others occur where the body of the cell is larger above than below, its base being in fact attenuated, so that the cell has the contour of an inverted ovoid. Where they approach the pyramidal form it is usually one of a very irregular triangle, with sides irregularly broken by numerous dentations caused by the processes distributed therefrom. From the summit of the cell arises the apex pPOCesS, directed radially to the surface of the cortex, whilst on either side from the basal aspect a fairly stout branch diverges — not at right angles, but forming an obtuse angle (of about 120° very uniformly) with the long axis of the cell. It appears to us that these stout lateral branches (which, with the apical, form by far the most prominent extensions of the cell) explain its triangular or pyramidal form upon shrinking in chrome fluids. The basal process, a fortiori, is far less clearly delineated, and, as before stated, several extremely delicate processes may arise from this, the lower, pole of the cell. It is, in fact, very doubtful whether a genuine axis-cylinder process is developed from this variety of cell, as we shall see is the case with the larger elements underlying them. These bodies, therefore, throw off three sets of fibres : — (a.) The apical, which are by far the most conspicuous, and always radiate to the surface of the cortex ; (6.) The large basal, running obliquely outwards and downwards on both sides ; and * Op. cit., 1). 3S9. 6 66 THE CEREliRAL CORTEX. (c.) Numerous very delicate lateral fibres radiating from all inter- vening districts of the surface into the nervous meshwork around. Each cell contains an oval nucleus, with well-dolinod nucleolUS, 7 /i X 5 ^ in size. The dimensions of the cell vary from 12/ji,x8//. in tlie more suj)erlieial to 41 //, x 23 /a- in tlie deeper layex'S. (■i) The Motor Cell. — We are alive to the exception which may be taken to any Kuch implication as the above designation conveys; yet, as it a])pears to us that the argument in favour of their motor endow- ments has been materially strengthened l)y farther examination of the question, we prefer this designation to that of giant pyramids, which was proposed by Betz, more especially since these elements may be recognised by certain features in certain regions, where they by no means deserve the epithet ^^ giant cell," being even smaller than the lower cells of tlie third layer above them. The motor cell, taking into consideration the more characteristic elements, are the largest cells found in the cerebral cortex. Some of the largest of these measure 126^1 in length by 55//. in the shorter diameter; the average dimensions of a veiy large number in the ascending frontal convolution being GO ijj X 25 fjj. The extremes are 30 fjj and 96 /i. for length, 12 /x and 45 /x for breadth. They contain an oval nucleus, 13-20 /x in greater by 9-12 /i- in lesser diameter. In form these cells are very variable, usually much swollen, plump-looking bodies; they are elongated and attenuated towards their aj^ex process, throwing off the gi-eater number of processes from near the opposite pole. The contour of these nerve cells appears related to the number and size of their branches — i.e., the greater the number of such processes, the more irregular the contour; whilst the apical and Ijasal processes being i;sually the larger, the cell tends to lengthen out in their direction and assume a more or less fusiform outline. Large processes, howevei', given out from various other points of the cell, gi-eatly modify this spindle form, so that extreme variations in configuration occur. We shall see that we have reasons for believing that the primitive form of all these nerve cells is globose or sliglitly pyriform ; that the fusiform outline is the next stage of their development ; and that further modifications occur as other processes beyond the apical and basal extend laterally. So likewise we shall see the reverse change undergone by the cell in the dissolutions of disease. The cell has, in the normal state, no cell-wall ; but the appearance of such is readily induced by reagents and disease. In fresh speci- mens obtained from frozen brain, the coll is seen to consist of a delicate protoplasm, which a]>pears to be directly continuous with its various processes ; nor can any trace of the fibrillated structure of the ccll-contcuts described by Max Schultze bo detected unless, PRIMARY AND SECONDARY BRANCHES. 67 indeed, reagents be employed. The lower pole of tlie coll is usually pigrnented as a normal constituent, just as is the case with the multipolar cells of the spinal cord. A large rouud or oval nucleus enclosing a nucleolus is always present in these cells. Each cell throws ofi" what may be termed ppimary and secondary branches — the former tlie apical and basal extension ; the latter including all other processes, whether coarse or fine delicate fibres. The apex process, formed by the gi-adual attenuation of the cell, passes straight up through the superjacent layers of cells, and can be often traced into the first or peripheral cortical layer, where it becomes lost to view ; we shall refer to its destination further on. Since in the motor cortex these nerve elements are aggregated into groups or clusters (Plate ii., fig. 1), these apical processes closely approximated often run in sheaves through the more superficial layers. The basal prOCeSS often arises in like manner from a gradual attenuation of the opposite pole, as in the fusiform cells, and large lateral branches may strike out from this extended pole. The basal process, however, continues downwards for some distance, when it gains a thin investing sheath of medulla, which, gradually thickens upon it, converting it into a true medullated nerve fibre. Hence this process is called the axis-cylindeP prOCesS. As Meynert remarks* — "It is the more rarely seen because, being the process which enters the medulla, its direction is dependent on the angles formed by the fasciculi of the latter, which by no means form a straight line with the apical process of the pyramid." This obliquity of position, therefore, necessitates its being cut ofi" in sections on a plane with the radiating apical processes. The secondary or lateral processes which radiate from the cell on all sides, unlike the former, divide and subdivide almost immediately after their origin, and interlace in the intricate webwork of nerve and connective fibre around the cell. We are apt to overlook the extreme complexity of structure in vertical sections of the cortex, and should compare with such sections others carried across the long axis of the cell (obtained by placing the cortex surface downwards on the freezing microtome, and cutting down to the level of these cell groups). Such sections show us one or two cells as the centre of an area to which their branches are distributed ; their finest ramifications apparently blending with those from adjacent cell territories. We have observed as many as eighteen main processes divei'ge from a single cell in such sections ; in vertical sections the average number seen is about seven, but as many as fifteen have been observed. When it is remembered that no single section can show (as the teazing methods, however, do) the actual number of branches in any single cell, the above statements will * The Brain of Ifamniah, Strieker's Handbook, p. 3S7. 68 TIIK CEUKBRAL COUTKX. indicate the wealth of communicating brandies which these " motor units " possess. Wlien we come to examine what appear to be the corresponding cells in the cortex cei'cbi-i of some of the lower mammals, we find certain strong jjoints of resemblance, together with certain distinctive features by which we may very readily recognise them as not human. Thus in the pig", in lieu of the great irregularity in marginal contour seen in man, we observe, on the contrary, a notable uniformity of con- tour, the elongate pyramid being the almost universal form. "They resemble closely, both in size and form, the large pyramidal cells at the deepest portion of the third layer in bimana, quadrumana, and the large carnivora, as also the ganylionic cells in the parietal and temporo- sphenoidal lobes of man. Nowhere do we find the irregulai", swollen, and at times almost globose cells so frequent in the motor area of the human brain." * Again, in the sheep, w-e fail to find the plump rounded cells of man and the higher mammals; but the cell is more variable in form than in the pig, the elongated pyramid being inter- spersed freely with long spindle forms and large numbers of a peculiar '* hOPned" cell, in which the apex process is bifurcate at its origin near the cell. They measure on an average 46 /a x 11 /a. In the cat, however, these elements are plump, oval, and pyriform ; average 51 /i X 21 /A in size, with an occasional gigantic cell of lOG //. x 32 /a j and are grouped together in well-marked clusters. In the rodent (rat, rabbit) the type of cell approaches that found in the sheep and pig. One may readily perceive the remarkable resemblance between these cells and those of the anterior cornu of the cord in chrome-hardened preparations, but still closer appear their affinities in structural arrangements when teazed-out specimens of brain and coi'd are com- pared. The inference that these cells are s])ccialised elements rests on this resemblance, on the possession of an axis-cylinder process, on their exceptionally large size and abrupt commencement, and the peculiar clustered groupings assumed in a region which has been shown by Fen-ier to possess motor endowments. Meynert, on the other hand, who fails to recognise these larger cells,! draws a parallel between the whole of the pyramidal cells of the third layer and the motor cells of the cord. His statement is as follows : — " If we remember that the anterior roots of the spinal cord, at their origin in the anterior cornua, * "Researches on the Comparative Structure of the Cortex Cerebri," Proc. Fioy. Soc, parti., 1880. t See the diagram of the five-layer type in Meynert'3 Psychiatry, and also in Sydenham Society's Trans, of his monograph, fig. 234. THE INFLATED OR GLOBOSE CELL. 69^ are connected with elements which, through tlie slenderuess of their bodies, the gradual transition of these bodies into the protoplasm of the processes, and the greater number and size of the latter, are sharply differentiated from the cells in which the posterior roots originate in the interspinal ganglia, these being tumid and provided with few and attenuated processes, an affinity in point of form is at once seen between the pyramids of the cortex and the former, which is common also to the cells of origin of all motor cerebral nerves, and permits an analogy to be drawn in regard to the significance of the pyramids of the cortex. " * (5) The Inflated or Irreg'ulaply Globose Cell. — The nerve cell to which the ejiithet inflated has been given has not been, so far as we are aware, described amongst the constituents of the cerebral cortex by any former writers on the subject. We first drew attention to it as a specialised cell, forming a distinct layer of the cortex, in a Memoir on the Comparative Structure of the Brain in Eodents (1882), and subsequent examinations fully confirm the description then given. The brain of the mole, rat, or rabbit is especially suitable for demon- strating the presence of this element. The cell which occupies the position of the small " pyramidal " and angular .bodies of the second layer is no longer of pyramidal form, but swollen, inflated, globose, or flask-shaped, and, moreover, oi far greater size. The average dimensions attained by it are 37 /i x 33 /i, with a nucleus of 13 /a ; some are more elongate, measuring 46 /a x 27 (m. Hence, these elements are more than double the size of those usual to this position, and exhibit the apparent anomaly of large cells in the cortex superimposed on a layer of small pyramids. The region in which they are found is really tlie hindmost extension of the lower limbic lobe (modified lower limbic type) in the rodent. As will be seen later on, the second layer of the coi'tex in the lower limbic arc is characterised by its peculiar closely appressed clusters of small pyramidal or angular elements, with bifurcate apices, which subdivide into a dense meshwork of fibres ; farther back, in the region above indicated, these elements appear transformed into the inflated cell, retaining, however, their bifurcate aj)ices and plexiform bi'anching. The cell throws ofi" numerous fine pi'ocesses on all sides; its proto- plasm — exceedingly delicate — shrinks greatly under the influence of alcoholic and other corrugating reagents, and should, therefore, be always examined in the fresh state. When acted upon by chrome it loses its chai-acteristic appearance and resembles the vesicular cell, which, in the medulla and spinal cord, is regarded as possessing sensory endowments. * Brain of Mammals, p. 3S7. 70 THE CEREBRAL CORTEX. It appears to us that tlic whole belt of the second layer of the cortex, out of which this specialised cell is developed, may subserve the same purpose — that of sensation in its various phases : the evidence on this point had better be considered at a later stage of our enquiries. (6) The Spindle Cell. — This undoubtedly is also a specialised element. The cell is a narrow fusiform body, attaining the average dimensions of 25 /x x 9 [i, the largest being 32 /a x 13 /a, with an oval or fusiform nucleus 11 /«- to 13 /^ in length x 6 /^ to 9 />!/ in bi'eadth.* Their two principal branches arise from either pole so as to give them in many cases the aspect of bipolar cells; but, as indicated by Meynert, lateral projections also arise from these bodies.f Frequently this lateral branch becomes large, and the resulting angular projection of the cell-protoplasm into it gives the cell a triangular or triradiate form. The cell is regarded as an intercalated element of the connecting system of the brain, and since the claustrum is entirely composed of such elements, the term claustral formation has been proposed for it by Meynert. These elements are peculiarly prone to a nuclear prolifera- tion, which occasionally accumulates into little heaps almost concealing these cells from view. In position they underlie the other layers of the cortex throughout its whole extent ; whatever be the type of lamination, the lowest stratum will always present us with these spindle cells of the association system of the bx-ain ; this applies equally to the mammalian brain in generah We have elsewhere indicated the existence of a perfectly g'lobose cell — with a single delicate apex process, and two or more extremely attenuated processes — without any angular pi'ojections from the cell, but a perfectly uniform rounded contour — as existing normally in the second and third layers of the cortex of the ape, and as being specially characterised by this swollen globose contour, and great paucity of branches. They are met with in man only in forms of developmental ai-rest — in idiotcy and imbecility ; but elements which remind us of these cells, occur in the second layer of the cortex of the pig. These may be early stages in the development of the more advanced forms of cortical cells, and may or may not have affinities to the inflated irregularly globose elements already desci'ibed in a specialised cortex of the rodent. The above constitute the various forms of nerve cell which occur in the mammalian cortex, and we must now direct attention to its other histological constituents : these consist of— « * Transactions of the Roy. Soc, 1SS2, part ii., pp. 714-15. t Op. cit., p. 3S9. K. J of seconc- :■ t^ •^ t^i erve -etsmeivts c i-lP/i. i-tpx r,f pi -> -left Iveraisv- '•-:•- ■';K the Nei.-.. IS. X76. -__ -r -Di PRIMITIVE FIBRIL — NON-MEDULLATED FIBRE. 71 (a.) ISTerve fibres ; (/».) Blood-vessels ; (c) Connective matrix or neuroglia ; (d.) Lymph channels. (n.) Nerve Fibres. — As is well known, nerve fibres, central and periphei'al, present varied forms, corresponding to five stages of deve- lopment — from the viltimate fibril up to the enslieathed and medullated fibre of the peri]>heral nerve trunks. The last, the most perfect and complex form, does not occur in the nerve centimes at all. In the cortex, as well as the nervous centres generally, three forms of fibre are met with — (1) The primitive fibi'il. (2) Naked axis-cylinder or protoplasmic process. (3) The medullated fibre devoid of a sheath of Schwann. (1) The Primitive Fibril. — The representative of the ultimate divisions of the non-medullated fibre, is an excessively delicate attenuated thread, revealed only by an amplification of 500 diameters ; and which, as the result of post-mortem change, becomes beaded or shows varicosities along its length. They are observed readily from the occurrence of this change by lower powers of the microscope ( x 350), especially by imbibition of fluid around, which causes them to swell up into large oval varicosities. Such delicate beaded threads are seen at all depths of the cortex in fresh sections obtained from frozen brain, treated with osmic acid, '25 per cent., and protected by a cover-glass ; but they are also traceable in sections which have been hardened by chrome, especially in the lowermost layers. They are seen in many cases to arise from the subdivision of larger fibres; they are perfectly homogeneous, betraying no internal structure to the highest powers of the microscope. (2) The Naked or Non-Medullated Fibres, also called the naked axis-cylinders, the protoplasmic processes of Deiters, form an important constituent of the cortex. From what has already been stated I'especting the mode of branching of the nerve cells, it will be apparent that the protoplasmic extensions, which form these naked axis-cylinders, occur in complicated meshwoi-ks throughout the cortex. To this category really belong both primary and secondary branches (p. G7) of the nerve cell in the fii'St portion of their course ; but, since their destination is wholly diff"erent, so their con- stitution differs at a subsequent stage. The apical ])rocess and lateral extensions pass by subdivision into an intricate meshwork of fibrils: the basal process becomes invested lower down with a pro- tecting layer of medulla. This is the process to which, properly, should be restricted the term axis-Cylinder prOCeSS ; and, for all 72 THE CEREBRAL CORTEX. otlicr extensions of the cell protoplasm, the term non-medullated fibre or protoplasmic processes should be applied in lieu of naked axis-cylinder. iSucli processes are very variable in size; but, at their origin from the various cells of the cortex, they range between 1 (l and 6 /«. in diameter : the lateral processes in particular become rapidly attenuated by subdivision, but yet may be occasionally traced over very lengthy tracts : the apex processes, running to the upper- most layer of the cortex, may often be traced to their termination here. These fibres exhibit, under certain conditions of examination, a linear longitudinal marking, which has been described as " fibrilla- tion " by certain autliorities [Max Schultze,* Landois and Stirling \): the homogeneous nature of the non-medullated fibre and axis-cylinder has, on the other hand, been maintained by K'uUiker,'^ Waldeyer,^ and others. Since those who support the view of the fibrillation of the axis-cylinder regard the fibi'e as a compound of the ultimate fibrils already described, separated by a small quantity of interfibrillar sub- stance, and believe them to be continuous thi'ough the ganglion cell in what they describe as a well-marked fibrillation of its interior, the question of the homogeneity or of the fibrillated constitution of the axis-cylinder V)ecomes of fundamental importance in neurology. Such fibrils would be regarded as isolated tracts of conduction throughout their length, the nerve fibre itself being a far more complex structure than what it was once regarded as being, and the cell itself would have a far different significance. Nor, according to some, need this visible conlinuitij of the fibrillar be demanded to establish the case — more or less fusion may occur thi'oughout the length of the fibre; and the splitting up into fibrillar only be observed at the centi'ic and peripheric terminations as an indication of the fibrillar constitution of the axis-cylinder and its lines of molecular disturbances. If these protoplasmic pi'ocesses and axis-cylinders be submitted to the action of silver nitrate in the dark, subsequent exposure shows them to be marked by a ])eculiar transverse striation, first indicated by Fromann. || Their significance is unknown. (3) Medullated Fibre or Axis-cylinder Process.— This may be either examined in tlie radiating expansion arising from the medul- lated core of a convolution at the site of the spindle layer of cells ; or, in the different intracortical arciform belts found at a higher level. * Strieker's Human and Comparative Hidologn, Syd. Soc., p. 158. t Test- Book of II u man I'/n/siolorj)/, vol. ii., p. 768. + Gewehelehre, 6th Aufl., 1867, p. 244. § Zeituchrift Jiir Balionelle Medicin, Band xx., 1863. II Virchow's Archiv, Band xxxi. MKDULLATED XERVE-FIBRES. 73 The medullated fibre of brain and spinal cord consists simply of an axis-cylinder with an investing sheath of myelin, which gives to the medullated fibre its white appearance, non-meduUated fibres having a grey translucency. The myelin is of fluid consistence, and appears limited simply by a very friable, soft, protoplasmic envelope [Cornil and Ranvier *), and not by the strong resisting sheath (of Schwann) which invests the peripheral fibres. Kiihne and Ewald have proved, by the use of trypsin, that the axis-cylinder is enclosed in a sheath of indigestible horny matexial, which they term the keratoid. sheath. In the peripheral nerves, however, this keratoid sheath not only embraces the axis-cylinder, but being reflected on the inner aspect of the sheath of Schwann, really serves to enclose the white medullated substance or myelin. In these more complex peripheral fibres (to which we must divert, for the time, our attention), although, the axis-cylinder is continuous throughout, the medullaiy sheath is not so, but presents at regular intervals annular constrictions named RanvieP'S nodes, after their discoverer. Eanvier called the in- dividual parts formed by these constrictions interannular Seg"- ments ; and showed that, whilst covered externally by the resistant structureless sheath of Schwann, both were interrupted at these constrictions. In a depression of the myelin, and between it and the sheath of Schwann, are the nerve COPpuSCleS — one for each segment, consisting of an oval nucleus surrounded by a little protoplasm. The neuro-keratin sheath, spoken of above, lies therefore on the axis- cylinder, and, reflected at each constriction upon the sheath of Schwann, enjoys the same segmentation as the other constituents of the nerve fibre. Traversing the medullated substance from the inner to the outer portion of the keratin sheath, are numerous transverse and oblique dissepiments, also of a horny nature, supporting the myelin (Lantermann). At the annular constrictions, there exists a certain amount of cementing mateiial, which, when the fibres are treated with silver nitrate, becomes darkened, and appears as a small cross at these nodal points along the fibres. The silver penetrating at these nodes stains also the axis-cylinder to a very limited extent, producing Fromann's lines. It is at this site that nutritive fluids gain access to the axis- cylinder, which otherwise could not be reached through the keratin sheath and medulla. Here also staining reagents gain admission, and colour the axis; and the myelin, after imbibition of fluid by the fibre, exudes at these constricting rings, pressed out by the swollen axis- cylinder in the form of droplets, easily recognised by their spherical form and double contour. The medullated fibre of the central nervous system, however, * Pathological Histologi/, vol. i., p. 33. Trails, by A. M. Hart. 74 THE CEREBRAL CORTEX. possesses, as we have already remarked, no sheath of Schwann ; it is consequently devoid of the constrictions or nodes of Kanvier, has no interannular segments, no nuclei along its length, nor does it exhihit any signs of lianvier's cross on treatment by silver nitrate. The constitution of tliese centric raedullated fibi-es, therefore, leads to a more pe7'ishable nature. They are /ar less resistant than those of the peripheral nerves, break up more readily into myelin spheres, or become extensively varicose. Hence, also, we find it difficult to stain such medullated fibres in fresh brain. The protoplasmic extensions, or naked axis-cylinders, take up aniline dye readily, becoming stained of a deep blue-black ; but, where the medullated sheath intervenes, the reagent fails to penetrate except along a short length just beyond the first appearance of the sheath. This want of permeability is compen- sated for, as before stated, in peripheral fibres by the presence of the constrictions of Ranvier. To stain the axis-cylinder tliroughout its length in these centric fibres, we must first displace the myelin.* This can be eftected by prolonged, immersion of the section in water, and subsequent staining with aniline blue-black. Twelve hours' immersion usually sufiices to remove the whole of the medulla around the axis-cylinders ; and. the latter are then seen as slightly wavy, swollen bands, often strap-shaped, and occasionally contorted, from the alteration undergone by aqueous immersion. They all run from the coi'tex downwards into the core of the medulla, to which they conA'erge in large numbers — deejily stained; and forming a striking conti'ast to the unstained aspect of nerve elements at this site in sections which have been prepared in the usual manner. But although such axis-cylinders present difficulties in staining along their length, they are well seen in sections across their axis: such cross-sections appearing especially in the lowest layers of the cortex (spindle-cell layer) as a central dark axis (often slightly drawn out into a short filament), surrounded by a sheath of white medulla retaining its circular outline — the myelin having been apparently "fixed" by the osmium treatment. The medulla in these cases is not perfectly homogeneous, but has undergone a change which gives it ix frosted vitreous aspect, with a very slightly granular appeai-- ance, the diameter of the fibre being from three to four times that of the axis-cylinder.t Large medullated fibres occur at this site, in * lu the very ininute medullated fibres of the cortex, we have an exception to this rule — the axis-cylinder staining fairly well without displacement of its investing myelin sheath : a result due undoubtedly to the small calibre of the latter allowing a certain amount of permeability. t It must be borne in mind that there exists a certain definite relationship betwixt diameter of axis-cylinder and medullated sheath : the larger axis-cylinder always having a larger sheath and vice versa. HISTOLOGY OF ARTERIAL TUNICS. 75 section, measuring 13 ,a across, with an axis-cylinder of 4 /x ; but extremely minute fibres are seen intermingled with these larger forms also, if the field be carefully searched. As we shall see later on, certain morbid conditions of the cerebral cortex modify to a con- siderable extent the character of this investing medulla. (6.) Blood-vessels of the Cortex— (l) Arteries.— These vessels, as they dip into the cortex, vary in dimensions irom 4 /i to 12 /a. They possess the tliree tunics which are recognisable to the naked eye in large arteries elsewhere, the tunica adteutilia, media, and intima; but, as in these lai-ger vessels, microscopic examination reveals the fact that each of these tunics is separable into several difterently-constituted layers, so the larger cortical blood-vessels exhibit in the innei'most coat a double layer — an elastic and an endothelial layer. The intima, or lining membrane of the artery, in the fresh state appears as a structui'eless membranous tube,with numerous oval nuclei, well seen in carmine-stained preparations, scattered over its surface. These niiclear elements are disposed longitudinally, i.e., in the direction of the vessel's length. The action of a solution of silver nitrate (i per cent.) reveals the fact that this tunic is not a homogeneous tube, but that it is constituted of large squamous endothelial cells, which look like polygonal flattened scales, united to each other at their mai-gin by a cementing material, which is mapped out in black lines by its reduction of the silver salt. Moreovex", it is then seen that the oval carmine-stained elements are nuclei of these flattened cells. The inner elastic tunic is in the smallest vessels a structureless mem- brane, seen as a bright wavy division between the endothelial and muscular coat in transverse sections of the vessel; in the larger arteries it is a distinctly fenestrated membrane, the representative of Henle's fenestrated and elastic laminte, which can be stripped ofi" in shreds from great arterial trunks like the carotid and axillary when they tend to curl at the edge and roll themselves up. It forms an important line of demarcation between the innermost and the muscular layer. The tunica muSCUlaris or media consists of smooth or unstriped muscular fibre with oval or strap-shaped nuclei. Such fibres being ari'anged transversely to the long axis of the vessel, or, rather, coiling spirally around it, appear at right angles to the longitudinally-disjtosed nuclei of the intima. Where this tunic is Avell developed, a longitudinal section of the vessel will often show these muscle fibres arranged in series along the margin of the tube, their nucleus, also divided transversely, giving them the aspect of round nucleated cells. The limiting wall externally is also often thrown into slight wavy /b THE CEREBRAL CORTEX. outline from the projection of these muscular fibres. In transverse sections of the smaller arteries one or two such muscle cells surround the open lumen. The muscular element does not enter largely into the constitution of the cortical bloodvessels. These vessels, like those of the cranial cavity generally, as well as those of the vertebral canal, have much thinner tunics than vessels of corresponding calibre else- where from this poverty in muscular elements and adventitial tunic (^Sharpeij). The tunica adventitia, which in the larger arteries is a connective sheath directly continuous with the pia mater {intima pia), becomes in the smaller vessels an extremely delicate membranous investment, faintly striated or structureless, upon which are found connective corpuscles, the nuclei of which ai-e round or somewhat oval, A membranous nucleated tunica adventitia, similar to the above, can be readily observed in larger capillaries of the hyaloid membrane of the frog (^Eberih*). The corpuscles in this adventitial sheath form a very delicate ^protoplasmic structure, of fusiform or stellate outline, shrink- ing notably with hardening reagents and desiccation of fresh brain, so as to bring their nucleus much more prominently into view; in fact, mounted specimens usually show the nuclei only along the course of the adventitial coat. As we shall see later on, these nuclei are prone to exti'eme degrees of proliferation. Closely applied to the tunica media, as a rule, this adventitial sheath is in certain conditions widely separated from the vessel's wall in ampullar dilatations, and at all times leaves a space between it and the middle coat in the angle formed by the bifurcation of the vessel. The latter, with its sheath, traverses channels in the cortical substance which form a wall limiting the distention of the vessel. This limiting channel has no definite endothelial lining, so fixr as can be discovered by the silver treatment ; it is termed the pePivaSCUlaP Channel of His, and is continuous with the epicerebral space between the intima pia and the outer surface of the cortex. Traversing this perivascular space ai'e numerous delicate fibrillar processes, which, arising from stellate cells in the substance of the cortex, thus form connections with the adventitial sheath of the artery. (2) The Capillaries. — These channels of intercommunication be- tween artery and vein are of extremely fine calibre in the cortex. Taking the capillaries of all regions, excepting the enormous capillaries of marrow, we may state their average dimensions as between 7 /U. and 10 /x, i.e., Avhen full of blood. The capillaries of the cortex, however, are often not over 4 ^u. in diameter {j^.?-jjj inch), and are therefore of less * See Strieker's Human and Comparative Histolcgy, vol. i, p. 2S7, fig. 53. THE CAPILLARIES AND VEINS OP CORTEX. i7 calibre than the red blood-corpuscle. We must allow for possible shrinking of the vessel by emptying its channel, as well as for the constricting effects of reagents, and can scarcely conclude that even these minute ramifications do not permit the passage of the red blood- corpuscle. The only constituents of the arterial tunics, which enter into the structure of the cajjillaiy, are the endothelial layer or Intlma and the adventitial investment. In fact, the transition from the smallest artery into the larger capillary is indicated by the disappear- ance of the muscular fibi-e cell, and the continuation of the channel as an apparently homogeneous tubular membrane, with oval nuclei along its course, and here and there niicleated connective cells as the sole representative of the adventitial sheath. The intima, which is a direct continuation of the endothelial lining of the arteries and by many believed to be the only constituent of the capillary, resembles that lining in every particular save the number and form of its squamous cells. These are not only fewer, being often reduced to two in a transverse view of the vessel or its lumen ; but, instead of being polygonal, are more often elongated into fusiform plates. These capillaries form good subjects for the study of this endothelial tube after the action of silver nitrate. The darkened cement substance then displays not only the outline of the endothelial plates, but various sized slits and darkened areas termed stig'mata and stomata, and believed by some to indicate orifices through which the colourless corpuscles migrate. In the smaller capillai'ies the delicacy of the structure is such that it is at first often overlooked until its course is noticed, mapped out by short, narrow, spindle-shaped nuclei, arranged alternately at regular distances on the opposite sides of the vesseh In the same direction also will be found rounded nuclei, staining readily with aniline blue- black, sometimes aggregated into groups or arranged in linear series at very irregular intervals along the vessel. These are the deriva- tives of the adventitial sheath, and are therefore always external to and placed upon the fusiform nuclei. They are often the best guide to the direction of the capillary loops around the nerve cell (Plate V.) (3) The Veins. — The venous channels of the cortex call but for short notice at our hands, since they reproduce with certain modifica- tions the structures which enter into the formation of the arterial tunics. It will suffice here to show how they difier from the arteries, and to point out the distinctive characteristics of these tlirec divisions of the vascular supply — artery, vein, and capillary. The veins consist, then, of but three tunics — the Intima, Media, 78 THE CEREBRAL CORTEX. and Atlventitia. The tunica intima is similar to that of the artery ; but the emlotlielial plates are shorter and broader, and the nuclei rounded and fewer in numbers. The media contains no smooth muscle fibre cells, but consists exclusively of connective tissue, whilst the elastic element (always less developed in veins tlian in arteries) is wholly absent in the small veins of the cortex. The adventitia repi'odiices in all respects what has been already described as consti- tuting this coat in arteries. Thus we see that the veins may be distinguished from the arteries by the greater laxity of their tissue — the absence of the muscular and elastic element leading to a wider lumen; moreover, the thin media, due to the absence of muscle cells, results in a very ihin-ioallecl vessel; in larger vessels the adventitia also is a more prominent feature than the corresponding coat in arteries. The capillary, on the other hand, commences where the middle coat terminates ; but to its minutest ramifications we still find elements of the adventitia around its delicate nucleated wall. This certain authorities deny, but repeated examination leads us fully to endorse this view, also adopted by Ebei'th, whose views are so much to the l^oiut that we quote them here : — " Between the capillaries of the lij'aloid of the Froc;, isolated stellate cells occur, with round nuclei and delicate protoplasm, branching off into many processes, Avhich often anastomose with the processes of the cells of the tunica adventitia. Towards the small arteries and veins, the pericapillary plexus becomes constantly closer, and soon in its stead there appears a delicate transversely folded and nucleated membrane, which is sometimes elevated in the form of small vesicles. . . . A similar nucleated membrane forms the outermost covering of the larger - sized capillaries, and of the arteries and veins of the brain, spinal cord, and retina of man. " * . (c.) The Neurog-lia or Connective Basis.— The more generally accepted fuuetious of the neuroglia matrix would i-ender structural differentiation of tliis non-nervous constituent highly probable iu different regions of the cerebro-spinal system. This, we find, accords with actual fact ; for, as a supporting, as well as embedding and jjrotecLive material, the requirements demanded will differ widely ia the white medulhited structures from those of the grey centres ; whilst individual sections of these territories will also differ in the special qualities of this matrix requisite. Thus, the large closely-approximated medulhited filtres of the Spinal Cord will be found to possess a strong binding material in the form of large-sized nucleated cells, with *"Eberth on the Minute Anatomy of the Capillaries," Strieker's Histology, vol. i., p. 2SG. THE NEUROGLIA MATRIX. 79 numerous lengthened ramifying processes, together with a plexus of fine fibrils (probably elastic fibre — Gerlach) ; whilst a structureless or very finely granular material is found here but sparingly. Still neai-er the jieriphery of the cord, this supporting structure becomes a veritable fibi'illar connective sheatli of great strength, with trabeculae of like constitution passing inwards to the cord. In the central grey matter of the cord, however, the finely granular or molecular basis-substance predominates, as most essential for the protection of the extremely delicate nerve fibres present in this region. Farther up in the medulla of the brain, as in the neighbourhood bordering upon the grey cortex, the large bundles of medullated fibre again demand a predominance of the connective fibre element, so that here we meet with numerous though delicate ramifying cells. Wherever the medul- lated fibre reappears, there we find the association of these branching cells, and thus they are seen along the outermost or periphei-al layer of the cortex as a normal element. In the grey matter of the cortex, however, the delicate nerve-cell and fibre network appears largely to dispense with this modification of the connective tissue, and we find a structureless matrix vastly preponderating over the cell and nuclear elements of the neui-oglia. A still further modification of the neuroglia element is found on the free surfaces of the cortex immediately beneath the pia, where the branching cell before described fulfils the function of a flattened epithelial investment, whilst the surfaces not exposed to pressure, as the central canal of the cord, show us the element as a columnar epithelium. Thus, generally, we may afiirm that, when dealing with nerve cells and their delicate extensions, the supporting material will be chiefly the structureless or finely moleCUlaP basiS-SUbstance ; whilst as we approach the medullated tracts, we shall find that the connective cell and fibre networks increase at the expense of the former. The elements of the neuroglia are usually described as nucleated cells and free nuclei imbedded in a structureless, or, according to some, finely fibrillated matrix, and to this view the appearance of chrome-hardened preparations certainly lends support. The less we subject our sections to reagents, and the more recent the section examined, however, the more evident it becomes that the supposed free nuclei are invested by protoplasm, and, in fact, are likewise nucleated cells. These two cell elements diff'er much as regards their relationships and also their dimensions. (1) The smaller of the two hinds of cell vary^from G /x to 9 ,a in diameter; have a spheroidal nucleus, surrounded by an extremely delicate protoplasmic investment, which, as before intimated, is 80 TUE CERKCRAL CORTEX. shrunken, often beyond recognition, in hardened specimens. The nucleus is, proportionately to the cell itself, very large, and invariably stains of an intense de-pth of colour with aniline blue-Vjlack. These elements appear disposed in thi-ee definite situations — (1) irregularly in the neuroglia framework ; (2) in regular series around the nerve cells ; (3) in more or less regular succession along the course of the blood-vessels (capillary and arteriole). (2) I'lie larger cellular elements of the neuroglia are usually 13 im in diameter, and supplied with a relatively larger mass of protoplasm as compared with the nucleus. They are distinguished from the former not alone by this gi-eater size and the preponderance of cell over nucleus ; but also by their frequent flask-like configuration, as seen in situ, and the presence of a very faintly-stained nucleus, or even sometimes two or three nuclei, observed within them. If these elements are teazed out from the surrounding matrix, they are seen to possess numerous extremely delicate radiating processes ; not only the nucleus, but the cell and its extensions are likewise tinted by the aniline dye ; not uniformly, howevei', for the nucleus is always of a slightly deeper tint, but neither cell nucleus nor processes betray anything like the vigour of staining shown by the former element described. The nerve cell, its processes, and the enclosed nucleus had, as we said, a si^ecial affinity for this staining reagent, a fact which indicates very conclusively the non-nervous character of these lai'ger elements of the neuroglia. In healthy brain, at least in the human subject, we find these elements chiefly in the outermost layer of the cortex and the central cone of the medulla, but their delicacy, tenuity of branches, very faint staining, and poor difl'erentiation ai'C not favoui'able to their immediate detection. In certain morbid conditions of the cortex, as we shall see later on, these elements become a most notable and important feature, xmdergoing excessive proliferation, and betraying their morbid activity by the intensity of colouring which they acquire. This study of the constituent histological elements of the cortex prepares us for the consideration of the lymphatic system of the brain, and the ultimate relationships of IS'erve cell to the Blood and Lymph channels. {d.) Lymphatic System of the Brain. — To Obersteiuer is due the credit of first definitely indicating the existence and relationships of these lymph channels.* Their existence since then has been re- peatedly denied, but the evidence hitherto brought forward against Obersteiner's views is most inconclusive in all respects, and in most *"Uber einige Lymphraiime im Gehirne" [Silsb. d. K. Akad. d, Wissensch., Jan. Heft, 1870). LYMPHATIC SYSTEM OF CORTEX. 81 cases appai'ently based upon incomplete methods of examination. This is not tlie place to enter on debateable ground ; but we are compelled, owing to the supi"eme importance of the subject as affecting the physiology and ^lathology of the brain, to state the results of our own investigations, which were made the subject of a special memoir in 1877.* All hardened sections of brain exhibit along the course of their blood-vessels a distinct and more or less wide interval between the vascular walls and the brain-substance ; in fact, the brain-cortex is channelled throughout, in such a manner, that the vessels when con- ti'acted are enclosed within a channel of much greater calibre. The disparity betwixt the diameter of vessel and bi'ain-channel will be affected undoubtedly by corrugating reagents ; and hence, we never fail to find these channels disproportionately lai-ge in brain which has been subject to extremes of hardening by chromic acid, (fee; but recession of the brain-substance may occur from many other causes acting during life — notably extreme atrophic degeneration ; and then, in like manner, such channels will appear inordinately large, however skilfully the brain be prepared. These channels are known by the name of the perivascular Channels of the brain — the peri- vascular channels of His : these are not the lynij)h channels proper, as several writers seem to have supposed, but are simple channels in the brain-substance, devoid of an endothelial lining, and communicating freely with the space between the investing pia mater and surface of the cortex, the eplcerebral space. The adventitial sheath of the blood-vessels becomes closely appressed to this limiting channel, and its (adventitial) nuclei often thus give it the appearance of being lined by endothelial cells. This, however, is not the case, as re- peated investigations by silver staining have shown. The student cannot too persistently bear in mind the fact that in these channels he deals purely with what seems equivalent to an involution of the naked surface of tlie brain, and yet the epithelial elements of the epi- cerebral surface are not continuous along this tubular channel. In the next place we find, luider precisely similar conditions to those above enumerated, a wide space around the larger nerve cells ; the brain-substance, as it were, seems to have receded from the cell, so that it is enclosed within a circular, oval, or pyriform space. These spaces we will designate the pericellular saCS. Genuine sacs, and not mere artificial gaps in the brain-substance, they undoubtedly are, as is abundantly proved by cai-eful examination. To exhibit the true * "The Relationships of the Nerve Cells of the Cortex to the Lymphatic System of the Brain," Proc. Roy. Soc, No. IS'2, 1877. 6 S'2 THE CEREDHAL CORTEX. relationships of these perivascidar channels and pericellular sacs, let us revert to the smaller cellular element described in the neuroglia (p. 80), It was stated that beyond the scattered elements in the basis substance of neuroglia, these cells were arranged in two other direc- tions. Let us particularise : — (1) The nucleated cells along the arterioles belong to the adventitial tunic, and map out its course very accurately ; occasionally closely applied to the perivascular channel, as before stated, or separated as irregular ampullse from the vessel itself, this investment more frequently lies directly upon the media, and affords one (but an equivocal) evidence of the existence of a lymph channel surrounding the vessel. That a complete tubular membrane exists for a certain distance along the smaller arterioles, is demonstrable ; that it is continuous, as a membrane, further on to the arterio-capillary plexuses, is more than dubious. It is certain, however, that its representative cells are to be found sui'rounding these minute channels to their ultimate ramifications ; and thus the perivascular hjmfli space of the adventitia becomes continuous in these districts with the general perivascular channels and sacs around the nerve cells. (2) The nucleated cells found in connection with the nerve cells in certain states not only acciimulate upon the nerve cell itself, but follow closely the outline of the cavity, or properly speaking, the sac in which the nerve cell lies. Many pericellular sacs will show a complete series of such nucleated cells around it, still more frequently will they follow out a segment only of its circular outline; occasionally none may be seen — an exception due probably to displacement during section-cutting or further manipulation. Upon closer observation, however, it becomes apparent that in the immediate neighbourhood of every large nerve cell there is a minute arteriole or capillary, not indicated so often by a well-differentiated contour (for these minute vessels are usually most difficult to follow), as by the direction of its nucleated cells. Thus, the fusiform nuclei of the intima, alternately placed on opposite sides of the capillary, will lead to the discovery of the outline of the vessel faintly indicated in a graceful curve or spiral in close approximation to the nerve cell; but the presence of the deep- stained nuclei of the adventitial cells taking the saine course, plainly indicates the direction of these ultimate nutrient channels. It is these adventitial elements which give us the clue to tracing the obscurely marked capillary, and when this is followed out, the eye becomes accustomed to trace without any difficulty the vascular loop around the nerve cell. Around a segment of the pericellular sac, mapped out by adven- titial elements, we then see a delicate tubular loop, evidently con- PERIVASCULAR CHANNELS — PERICELLULAR SACS. 83 tinuous with the neighbouring arteriole, and to the sides of which the pericellular sac appears to be attached, the nerve cell itself being, as it were, suspended within the latter. It would appear as if the geiiei-al perivascular channels at their ultimate ramifica- tions around the arterio-capillary plexuses were enlarged here and there laterally along the vessel by the growth of an element included within it which becomes the nerve cell, and which does not come in contact with the neuroglia mati'ix except through the medium of its processes, which, passing through the pericellular sac, permeate the neuroglia in every direction. It would appear also from examina- tion of specially prepared sections, that the adventitial elements are not entirely limited to the vascular loop, but may line the interior of these sacs — not as a regularly applied endothelial layer, but as loosely .distributed and branching cells. In like manner, similar cells may be found free within the cavity of the sac between its wall and the nerve cell, resembling in all particulars lymph corpuscles. Beyond the system of perivascular channels, adventitial lymph space, and pericellular sac, we have a lymph-COnnective system which plays an important role in the pathology of the brain. This system is constituted by the larger connective element referred to above — the delicate branching masses of protoplasm supplied usually with one, sometimes with two, or even three large nuclei. These elements, when more closely examined, are found to have a definite and constant relationship to the cortical blood-vessels ; and are always discovered in larger numbers in their immediate neighbourhood, external to the perivascular channels. The latter present where they are well seen, and the adventitial sheath is appressed to the vessel's side, a series of delicate processes, which, traversing the channel, look like fibres extending from the adventitia into the brain-substance. AVhat are these fibrous prolongations ? Careful examination of one of the large neuroglia elements reveals the fact that they throw ofi" two sets of processes — (1) an enormous number of extremely delicate fibres, which spread into the intervascular area around, and (2) a mioch thicket', coarser process, which, often after a tortuous course, ends in the adventitial sheath of the blood-vessel. In crossing the perivascular sac, these processes give rise to the fibres just described as extending between adventitia and brain-substance. It is in certain morbid developments of these cells that we can the more readily distinguish their real relationships. We find that the stouter process, which we may provisionally term the vasCUlaP, terminates in a nucleated mass of protoplasm on the sheath itself, corresponding to one of the perivascular or, more properly, adventitial cells. In morbid states, as we shall see, this terminal protoplasm of 84 THE CEREBRAL CORTEX. the vascular process "becomes spider-like, in its turn throwing off numerous branches, which embrace the vessel's -wall. In the healthy- state, it is most difficult to trace the vascular branch ; but that this can be done by proper methods, we have frequently satisfied ourselves. The branched cells which Ave have now described have often been recognised in their morbid modifications, and variously interpreted. Their representatives in healthy brain were first described by Deiters,* and subsequently by Ball and Golgi ; but we do not think their true significance has been recognised either as normal or pathological elements of the central nervous system. "We incline to regard these ele- ments as comprising the distal extension of a lymphatic system, in fact as a lymph-COnnective system permeating the neuroglia in the intervascular area. The individual elements are excessively delicate and pellucid, their protoplasm appearing almost of fluid con- sistence, and the vascular process invariably establishing its connection with the lymph sheath of a blood-vessel. In whatever manner these spider cells efi"ect the reabsorption and distribution of tlie effete matei'ial and surplus plasma — whether by direct assimilation into their own structure, and its removal by currents within the protoplasm of the cell and its processes, or by means of a true canalicular system terminating in the lymph sheath — it is an undoubted fact that any arrest to the escape of perivascular lymph from the cortex is imme- diately followed by a morbid development and hypertrophic condition of this system of spideP Cells, as we shall for the future call these- elements of the "lymph-connective system." Meynert long since drew attention to their freqiient pi'esence as associated with congestion and degeneration of the lymphatic glands of the head and neck, and we haA^e assured ourselves of the frequent association of this morbid development in tuberculosis, and in several affections of the cortex and its membranes which lead to obstruction of the perivascular lymph channels.t The morbid changes undergone by this lymph-connective * Hence they are often named after him — Deiters' cells. — Untersiichungcn iiber Gehirn und E'uckenviark der Menschen und dcr Suitrjcthlere, 1S65. + We have elsewhere alluded to the comparative significance of these elements as follows: — "In man they appear in scanty numbers; in the Barbary ape, they become more frequent ; in the cat and ocelot, they are still more abundant ; in the pig and sheep so profusely scattered are they that they form a most characteristic stratum immediately below the pia mater, and the meshwork formed by their fibres is dense and coarse, binding the blood-vessels to the cortex and rendering the pia mater strongly adherent. We find these corpuscles in human brain which has undergone senile degeneration — in other diseases attended by reduction in functional activity, and in vascular affections resulting in retrogressive changes and a reversion to a low type of structure." — " Comxiarative Structure of the Corte.x: Cerebri." Trans. Eo>jal Soc, part i., ISSO. SPIDER CELLS OF LVMPU-CONNECTIVE SYSTEM. §5 system and the effects of its moi'bid activity will be more fully dealt with when ti'cating of the pathology of the cortex. For the present we shall summarise the above statements as follows : — The lymphatic S3'stem of the brain consists — (1) In the fii'st place, of a distensible lymphatic sheath, loosely applied around the arterioles and venules, containing numerous nucleated cells in its texture — the adventitial lymph sheath, the whole being included within a non-distensible channel of the brain-substance, devoid of endothelial lining — the perivascicla7' channel of II is. (2) In the second place, of a continuation of the cellular elements of this sheath, loosely applied to the arterio-capillapy plexuSGS, still contained within a perivascular channel, which now exhibit along the capillary loop sac-like dilatations — the pericellular sacs, within which the nerve cell lies, surrounded by plasma. (3) Lastly, of a system of plasmatic cells with numerous prolon- gations, which are always in intimate connection with the adventitial lymph sheath, and which drain the areas between the vascular bi-anches — these we have termed the lymph-connective elements. . If we take a comprehensive view of the whole system — the channelled vascular tracts, the saccular ampullse along the capillary tube, the caualicular-like formation of the lymph-connective elements, all em- bedded in a homogeneous matrix of neuroglia — we cannot but be struck by the sponge-liJce arrangement of the cortex, and the facilities so aiforded for the free circulation of plasma throughout its most intimate regions. CORTICAL LAMINATION. Having familarised himself with the individual histological elements of the cortex — the nerve cells, blood-vascular and lymph-vascular systems, and the neuroglia framework — it becomes the student's duty to examine their general arrangements and the local deviations to be observed. A vertical section of fresh cortex of human brain reveals to the naked eye a distinctly laminated aspect, the various laminse of which are more or less clearly marked out by difference in colour, the outer being usually of a pale translucent grey, and the deeper of alternating pale and dark grey layers, more opaque in aspect, and in certain regions exhibiting a sharply defined white streak. The outer trans- lucent layer has superimposed on it a delicate white stratum, scarcely appreciable on the convexity of the hemisphere, but well marked in the convolutions boi'dering upon the cor^tus callosum, and the 8G LAMINATION OF CEREBRAL CORTEX. convolution of the hippocampus, at tlie Laso, where its peculiar aspect has gained for it the name of the reticulated White SUb- Stance. As we shall see latei- on, this is a superficial layer of white medullated fibre running parallel to the surface of the convolution ; whilst the paler intersecting streaks deeper down in the cortex are similar systems of arciform intracortical fibres intervening between layers of grey substance. The deeper layers owe their opacity to the relatively large proportion of medullated fibres passing through them ; the upper layers are translucent from the preponderance of the neuroglia element and fine protoplasmic processes of the nerve cells ; the warmer grey tints are due not only to large niimbers of pigmented nerve cells, but chiefly to the amount of blood in the vessels of the layer. As might be supposed from the above, the distinctness of lamination not only varies with the local peculiarities of structure, but with morbid states of the cortex and with the full or empty state of its vessels. Probably the best introduction the student can have to the study of the human cortex is to commence first with the brain of one of the lower mammals, choosing one of the smooth non-con- voluted brains, as of the rat or rabbit, ere he attempts the more complicated brain of those animals which exhibit a convoluted surface. He thereby learns to appreciate the great diversity of lamination which may exist in so small an organ as the brain of the rodent, as also the abrupt transition from one type of cortex to that of another wholly different from it, and lastly he becomes familiar with types of lamination which are strictly reproduced in higher forms up to the brain of man. Figs. 1-3 in Plate i. represent the brain of the rabbit seen from its upper, lower, and median aspect, of somewhat pyriform contour below at the base, and triangular above ; its frontal pole is much attenuated, and rests upon the olfactory lobe. On its inner aspect we see two very delicate furrows (fig. 1, A) which represent the sub-frontal and sub-parietal segments of the limbic fissure, which is strongly marked in the brains of the pig and of the sheep ', this ri;dimentary fissure limits the upper limbic arc (between A and J) from the extra- limbic or parietal mass of the hemisphere (fig. 3, Z, Y). If we follow this upper limbic arc from before backwards, we find that its anterior extremity is deep, and that it gradually becomes more shallow towards the sub-parietal furrow; beyond this it is hollowed out by the prominence of the mesencephalon and overhung by the occipital pole (fig. 1, D), and curving downwards behind the corpus callosum, it bends forwards as the gyrus hippocampi or lower limbic arc (figs. 1, 2, B). CEREBRAL IIEMISPnERE OF THE RODENT. 8T Looked at from the base, we see the lower limhic arc separated from the extra-limbic mass by a well-defined fissui'e — the limbic fissure, which here separates the lower limbic arc from the extra-limbic mass, the latter being still prominent and not concealed from this aspect, as in the rat, where the lower limbic arc extends farther outwards. Extending back from the frontal pole are the olfactory lobes, the outer roots of which (or superficial olfactory medulla) terminate near the extremity of the gyrus hippocampi. These two external olfactory roots enclose between them two pyriform grey areas, one on each side, separated by the middle line, bounded behind by the optic commis- sure — the optic nerves lying superficial to them. This grey area is the olfactory field of Gratiolet. Between the olfactory area and the lower limbic arc, a vei'y slight depression indicates the site of a rudimentary Sylvian fissure. Looked at from above, we find the surface of what Broca would call the extra-limbic portion, perfectly smooth, and showing no indica- tions of rudimentary furrowing beyond a very delicate, shallow, linear depression, mapping off the sagittal region of the brain from the parietal or extra-limbic portion in the posterior half of the hemispheres. This is the representative of the primary parietal sulcus, which, in the Pig, Sheep, and other Gyrencephala, separates the sagittal from the Sylvian gyri of the parietal lobe. In the rat no such linear depression exists ; but, this region bordering on the sagittal margin posteriorly, is clearly ma'pped out by its distinctly jmle aspect as compared with the cortex external to it. The different regions which we have now indicated are all dis- ting\iished by a type of cortex peculiar to each ; and thus the upper limbic arc, the lower limbic arc, the olfactory area, the exti'a-limbic or parietal portion — areas obviously differentiated roughly from one an- other by sulci or faint indications of furrowing — all exhibit absolutely distinct types of cortex. But this difi'erentiation does not stop here ; the pale strip of cortex bordering upon the sagittal margin in the rat, although not mapped off by a distinct furrow, has also its own peculiar type of cortex ; and in the rabbit, as we have seen, this region is further differentiated by a linear furrowing. Then, again, the lower limbic arc, if traced backwards, presents us beneath the occipital pole with a further modification, which can only be regarded as a distinct type of cortex. If we add to the above the formation of the cornu ammonis and of the olfactory bulb, we have presented to us eight distinct types of cortex, not mere fanciful distinctions based upon trivial peculiarities ; but, in all cases, abrupt transitions from one kind of cortex to another. This divergence in laminar type is peculiarly abrupt in these lower forms of life, the demarcation usually being 88 LAMINATION OF CEREBRAL CORTEX. sharply drawn at the furrows intervening between these regions. In liigher animals, and especially in man, no such abrupt demarcation occurs ; distinct tPansition TGg'ions lie between either territory, so that the gradual passage from one form of cortex to another is a dis- tinctive element in the evolution of the higher brains * (Brain, vol. i., page 84). The eight laminar types of cortex which are thus distinguishable in these small mammalian brains, we have named as follows : — (1) Type of the upper limbic arc. (5) Modified olfactory type. (2) Modified upper limbic tyjie. (6) Extra-limbic type. (3) Outer olfactory type. (7) Type of cornu ammonis. (4) Inner olfactory type. (8) Type of olfactory bulb. On the other hand, we find that Meynert enumerates but five types as follows : — (1) Common type. (.3) Sylvian type. (2) Occipital type. (4) Type of coi-nu ammonis. (5) Type of olfactory bulb. If we turn to our outline scheme of the rabbit's brain (Plate i.), we shall find these diverse forms of cortex distributed in the following regions : — (1) The first, or the type of the uppeP limbic arC, occupies the median cortex of the hemisphere from the frontal jiole to the end of the sub-parietal furrow (figs. 1-3, -h ) ; it moreover spreads beyond the sagittal margin, and embraces the pointed frontal extremity of the exti'a-limbic region at the vertex. (2) The second, or modified upper limbic type, prevails also on the median cortex behind the above type, extending to the occipital pole, but also spreading outwards over the sagittal border to the upper aspect of the hemisphere, where it terminates abruptly at the parietal furrow (dotted area). (3) The third, or outer Olfactory type, characterises the cortex of the greater segment of the lower limbic arc to its extremity — the gyrus hippocampi (figs. 1, 2, B). (4) The fourth, or inner olfactory type, covers the grey pyriform * In his earlier memoir, published in Strieker's Human and Comjmrative Ilixlology, as well as in his later views expressed in Psycliiatnj, MejTiert defines but five types of cortical lamination as distinctive of the brain in mammals. We find our- selves unable to agree with Meyuert, not only as regards his enumeration of types of lamination, but in some cases as regards his description of the specific characters of individual tyjies of cortex. t ^r^ -.*»%>* ^^ ^ 1: ... K^^W ;\*^ ' 4 '?f'% TYPES OP CORTICAL LAMINATION. 89 ai'eas enclosed witliiii the last mentioned and the outer root of the olfactory bulb (tig. 2, dark area). (5) The fifth, or modified olfactOPy type, occupies the posterior segment of the lower limbic arc, where it sweeps round posteriorly to meet the upper limbic arc. This form of cortex, unique of its kind, is also abruptly limited externally by the great limbic fissure. (G) The sixth, or extra-limbic type, is peculiar to the whole of the extra-limbic or parietal portion of the hemisphere, except the regions already described as presenting a peculiar lamination. Thus it occupies the whole of the vertex except the portion internal to the parietal furrow, and the pointed end of the hemisphere in front, whilst elsewhere it is strictly demarcated from other regions by the great limbic fissure. (7) The seventh, or type Of the COPnu ammonis, characterising the involuted free margin of the cortical envelope, is, of course, con- cealed from view in these aspects of the hemisphere. (8) The eighth, or type Of the olfactOPy bulb, has its distribu- tion sufiiciently indicated by its name (figs. 1, 2, F). A brief description of the peculiarities of these cortical belts of nerve cells will be all that is needful for our present purpose. (1) Upper Limbic Type. — The cortical lamination here referred to is illustrated in Plate i. The area it covers is presented in figs. 1-3, + . It is essentially a four-laminated type : its first or superficial layer being a light grey belt of delicate neuroglia matrix, with connective elements and their fine prolongations supporting the extremely delicate subdivisions of the apical px-ocesses of nerve cells in the subjacent layers. iVo nerve cells are found in this layer, which we term the "peripheral cortical zone" (Plate i.) Next to this succeeds a layer of small pyramidal cells, which, down to the confines of the third layer, remain equable in size throughout ; in all respects these elements bear close resemblance to the upper half of the third layer in higher animals. They difi'er from the human cortex (1) in not, as in the latter, rapidly increasing in size with their depth, and (2) in following immediately upon the peripheral cortical zone with no intervening belt of small oval and angular cells, such as characterises the second layer in man. A few bifurcate cells in sparse detached clumps occur on the outermost confines of this layer, probably rudimentary elements of the second layer of man. Beyond the layer of small pyramidal cells, is a pale belt containing the largest cells of the cortex — a pale poorly- celled zone demarcating them from the superimposed layer of pyra- midal cells. These elements are, however, distinguished from the latter not alone by their great size, but by their distribution into confluent groups or clusters, which, as we shall see later on, is a special 90 LAMINATION OP CEREBRAL CORTEX. character of the large nerve cells of the motor cortex. Their apex pro- cess extends right tlirough the pyramidal series into the peri})horal zone. We cannot now stop to inquire into their many striking features. Beneath these large cells is a series of fusiform elements, similar in all respects to those found in higher mammals. This type of cortex, thei'efore, is constituted by (1) A pei'ipheral cortical zone. (3) Ganglionic layer. (2) Small pyramidal layer. (4) Spindle cell layer. (2) Modified Upper Limbic Type. — This form of cortex, like the last, is also a four-laminated type. Near the posterior extremity of the corpus callosum (Plate iv., fig. 1), the upper limbic arc exhibits the in- tercalation of a series of granule CCllS between the small pyramidal and the large ganglionic cells ; but, as we proceed farther back, this belt of granule cells deepens, and, approaching the surface, eventually entirely displaces the small pyramids, and becomes in their place the second layer in this region. The granule-like aspect is due to the relatively large nucleus, as comjjared with the investing protoplasm : they form a belt of densely crowded elements. The cortex, therefore, of the area represented in Plate iv., figs. 1-3, is constituted of (1) Peripheral cortical zone. (3) Ganglionic belt. (2) Deep belt of granule-like cells. (4) Spindle cell layer. (3) Outer Olfactory Type. — Passing now to the lower limbic arc at the base, we find that the area marked Plate i., B, has a much simpler form of cortex than those hitherto described — two belts of nerve cells only are found in this region subjacent to its outer or peripheral zone. This peripheral zone is specially characterised by the distribution throughout its greater extent of fibres derived from the superficial olfactory fasciculus, which lies embedded in this fix'st layer of its cortex; fibres which ramify at all depths in this layer to unite with the meshwork derived from the apex pi'ocesses of the cells beneath. Next to this, succeeds a shallow belt of irregular cells, jjyramidal, oval, or fusiform, small in size, each with a bifurcate apex process, which immediately undergo rapid subdivision. They are ai'ranged in peculiarly appressed clumps. Then amongst them appear a few large cells of pyramidal contour, which deeper down increase in number and foi'm a distinct belt, in which a few rather large elements are seen. Traced outwards, beyond the limits of the great limbic fissure, these larger elements appear to pass into the ganglionic series. TYPES OP CORTICAL LAMINATION. 91 ■whilst the small clumps of irregular cells pass into the small pyramidal cells of the extra-limbic region. This cortex, therefore, comprises (1) A peripheral cortical zone. (2) Dense appressed clusters of small cells. (3) Scanty large pyramidal cells. (4) Inner Olfactory Type. — Covering Gratiolet's "olfactory area," is a three-laminated cortex, comprising (1) A peripheral zone. (2) A granule cell layer. (3) Layer of spindle cells. The second layer is formed of cells measuring 9 /a x 6 /x, with a large spheroidal nucleus, 6 /i in diameter ; with these are associated numerous minute granules only 5 ^ in diameter, like the gi-anule cells of the modified upper limbic region. This layer is duplicated in numerous folds, in which the outer layer does not participate. The layer of spindle cells is notable for the large size of these elements : they are reclinate, i.e., their long axis lies parallel with the surface of the cortex. (5) Modified Lower Limbic Type. — This unique formation, occu- pying the small triangular area, shown in the figure (Plate i., T), is a five-laminated type, the chief feature of which is presented by its peculiar second layer of cells. These nervous elements are more than double the size of those occurring in the second layer of the cortex elsewhere ; they are large, swollen, globose, inflated-looking cells, which almost invariably branch from the apex by a bifid or bicorned process. This belt of inflated cells is superimposed on a series of small pyramidal bodies, which succeeds them (Plate iv., fig. 2). A pale belt, devoid of nerve cells, follows the latter, and is in turn succeeded by a series of spindle cells. To recapitulate, we have here (1) Peripheral cortical zone. (3) Small pyramidal cells. (2) Layer of globose inflated cells. (4) Pale belt devoid of nerve cells. (5) Spindle cell layer. (6) Extra-LimbiC Type difiers from that of the upper limbic cortex solely in the intercalation of a belt of granule or angular cells between the small pyramidal and ganglionic series. This form of cor- tex exhibits a very gradual transition to the upper limbic type, and, therefore, presents an exception to the rule of abrupt demarcation shown by other varieties of cortex. The gradual passage of one into 92 LAMINATION OF CEREBRAL CORTEX. another form we sliall have reason to refer to hiter on; for the present it will suffice to enumerate tlie relative layers of this formation. (1) Pei'ipheral cortical zone. (3) Belt of granule or angular cells. (2) Small pyramidal layer. (4) Ganglionic series. (5) Spindle cell series. (7) Type of the Cornu Ammonis. — The cortex of the comu presents several features common to other regions of the hemispheres: we here have reproduced a peripheral zone to which run the radiate apex processes of underlying cells : then a dense belt of ganglionic cells : beneath which again we trace a spindle-form series of elements. The distribution, however, of these several nervous constituents is so far different as to stamp this type of cortex with features peculiarly its own. Thus, the ganglionic cells form a single shallow belt of closely ap])ressed elements, the apex processes of which, in close serried file radiate outwards to the peripheral zone, no more cells, corresponding to the second and third layers elsewhere, intervening : these radiating processes give to this striate layeP the aspect from which its name is derived. Again, the peripheral zone is cleai-ly divisible into two sections — an outer, with tangential, medullatcd fibres, containing sparsely scat- tered spindle cells ; and an inner, which is peculiarly reticulated in aspect, and is constituted by a nerve-fibre and a vascular meshwork. The former is termed the nuclear layer ; the latter the lacunar layer or " stratum reticulare " of Kupfter. The medullated stratum corresponds to the same stratum which is found elsewhere in the peri- pheral zone, and which we trace as continuous with the underlying nerve-fibre plexus. The nerve-fibre plexus of the reticular Stratum, howevei', reproduces that plexiform arrangement which is so well seen in the olfactoiy cortex {outer olfactory type), and which is there largely constituted by the bifurcate apex processes of the cells of the second layer. Here, however, in the cornu these cells do not exist, and the plexiform arrangement is wholly that resulting from the extensions of the ganglionic belt, as well as the anastomosing network of blood- vessels, Avhich are here provided with large perivascular channels. Lastly, the spindle cell formation succeeding the ganglionic belt is a fine, granular, faintly-stained layer, called by Kujjffer the " stratum moleculare;" and constituted by a fine meshwork of nerve fibrils — the secondary processes of the superimposed ganglionic cells, in which spindle cells are freely scattered. These latter elements are found at still deeper levels, where a pure white unstained stratum — the deep medulla of the coi-nu — appeal's. In man the stratum nioleculare is absent, tlie axis-cylinders of the ganglionic cells uniting directly with CORNU AMMONIS — OLFACTORY BULB. 93 the medulla forming the so-called alveits. We may, thex"efoi"e, regard the cortex of this region as constituted by (1) The peripheral zone divisible into — (a.) Nuclear lamina. (6.) Lacunar or reticulated lamina. (2) The striate layer. (3) The ganglionic belt of cells. (4) The spindle cell layer (siratum moleculare). (8) Type of the Olfactory Bulb. — A section through the bulb reveals characters very distinct from those hitherto described, and in some particulars reminds us of the structure of the retina. The outer zone is constituted by a dense layer of nerve fibre, derived from the olfactory nerves, which here terminate in globular bodies — the olfactory g'lomeruli. These latter bodies really consist of fine granular material imbedding the duplicatures of an olfactory nerve fibre, whilst small nuclear elements are also scattered through the mass. The layer itself is termed the stratum g'lomerulOSUm. This is succeeded by the stratum g'elatinosum, where fusiform and pyi'amidal cells in more or less scattered groups are found in a connective matrix. Still deeper is an important formation of very densely grouped, small granule cells in distinct clusters which resemble closely the granule elements beneath the cells of Purkinje in the cerebellum, and which, imbedded in horizontally disposed medulla, alternate more or less regularly with the latter. We may enumerate as distinct layers of the bulbus olfactorius: — (1) A peripheral nerve layer. (3) The stratum gelatinosum. (2) The stratum glomerulosum. (4) The stratum granulosum. Our review of the foregoing types of cortical lamination in the mammalian brain prepares the way for certain deductions which have an important bearing upon the physiology and pathology of the cerebrum. In the first place, let us note that the simpler forms of cortex are confined to the lower margin of the cortical en^'elope, where it folds round the cerebral peduncle at the base — the COrnu ammonis, the lower limbic lobe ("outer olfactory type"), and also the olfactory area of Gratiolet. The more complex form of cortex, however, spreads over the upper limbic arc and the whole of the extra limbic reg-ion of the hemisphere. It is these more complex forms of cortex Avhich concern us chiefly ; they comprise in man the extensive areas at the vertex and the whole convoluted surface of the hemispheres, as seen from above. Now, in studying the small brain of the rodent and hieher animals we find structural modifications in the cortex of this 94 DIVERSITIES OF COHTICAL LAMINATION'. region, wliicli appear to forcsliadow tlie divergences observed in man. Thus, if we examine successively the cortex at different points from within outwards in a vertical section through the hemisphere, passing through the Sylvian depression, we find that — (a.) The first la^^er of the cortex is deepest at the sagittal border, and steadily diminishes in depth as we proceed outwards towards the limbic fissure ; (6.) The second layer of small pyramidal cells increases rapidly in depth and in wealth of cell-structure in a reverse direction — i.e., from within outwards ; (c.) The ganglionic series of cells (which assume thick clustered nests in the tipper limbic arc and over the vertex bordering on the sagittal fissure), gradually loses its confluent tendency and becomes spread out in isolated units (" solitary type ") as we approach the limbic fissui'e externally. On the other hand, if we examine similarly a vertical section taken through the posterior moiety of the upper limbic arc (Plates i. and ii.) we find that — (d.) The intercalated series of granule cells increases in richness of elements and depth of formation as we proceed outwards to the lateral aspects of the hemispheres, and backwards to the occipital pole ; and reaching the limbic fissure terminates abruptly, whilst the other layers pass on iminterruptedly. If we now examine vertical sections of the hemisphere in the antero-posterior plane, we find that — (e.) The outer layer (peripheral zone) progressively diminishes in depth from the frontal to the occipital pole ; {/.) The small pyramidal cells of the second layer diminish in size in the same direction ; (g.) The granule or angular cells intercalated in the five-laminated coi'tex increase in richness conspicuously towards the occipital pole ; (Ji.) Lastly, the ganglionic series, which near the frontal pole forms a deep layer rich in cell elements, thins out considerably backwards into a laminar or " solitary " formation ; but, at the extreme occipital pole, these cells again form a somewhat deep belt with granule cells superimposed. The obvious deductions to be made from the foi-egoing are that certain elements preponderate in certain fixed areas of the cortex ; and that the development of certain layers appears to exclude that of another series. Thus the frontal pole and frontal extremity of the tipper limbic arc are es})ecially characterised by the preponderance of the g'ang'lionic series, which accumulates here in rich clustered groups ; towards the .Sylvian border this element is insignificant, and it is the small pyramidal layer which here prevails. Towards the occipital pole mesially (" modified upper limbic type ") the granule ■^1 riVi • * 'I . ^E KIM Modifisx o^acory z-ypt Dist Cortex. Plate IV^ -*: i^:/i' 'WVi Mm A . 1 * ^ -4' ^ ^3^«^^ ''■MS*' \:\ ■V-jf ^'"^x_7 ,/ C3 ti.t c/» REGIONAL DISTRIBUTION OP GANGLIONIC CELLS. 95 cell attains like importance from its notable wealth of elements and its more or less complete exclusion of the small pyramidal series; wliilst outside this formation, in the extra limbic cortex, the intercalated granule belt is a notable feature, accompanying a corresponding impoverishment of the small pyramidal and ganglionic series. A certain relationship also would seem to exist between the depth of the first layer or peripheral zone and the ganglionic series of cells ; since it notably diminishes in depth as these elements thin out into the solitary type of arrangement, and this despite the marked increase in the small pj^ramidal series above. This mutual dependence seems to us explained by the fact that the apical processes of these large elements pass up into, and terminate in, this peripheral zone, so that any regional difference in the depth of the outer layer will be dependent on the greater or less development of these ganglionic cells. It must be borne in mind, however, that the average depth of the first layer increases in lower mammals and becomes shallower as we rise to the more highly organised brains — a fact which does not militate, as might at first appear, against the preceding conclusion. In the lower mammals, the absolute and relative increase in the depth of this outer layer probably means a large preponderance of the connective over the nervous element.* Reg-ional Distribution of the Ganglionic Cell.— Attention was first dii'ected to the peculiai'ly clustered arrangement of these cells in the cortex of man and the higher apes by Professor Betz,-j- who denominated them "giant pyramids," and suggested their probable motor signification from their form, arrangement, and connections. Subsequent research appears fully to confirm the conclusion arrived at by Betz,J and it becomes, therefore, important to indicate the regional distribution of these elements. We find that this series of cells in man and the higher mammals (Pig, Sheep, Dog, Cat, Ape, and Man) assumes in separate regions of the cortex a different arrangement, which we have * See upon this point, Meynert, "Brain of Mammals," Si/d. Soc, p. 3S3 ; also, Brain, vol. i., p. 358. t "Anatomischer Nachweis zweier Gehirucentra," Prof. Betz, Centralhlatt f. d. Med. WisseMsch., Aug., 1884. J It is true that Mej'nert would dispose of the assumed significance of these cells on the grouud that their large size depends on the distance which their apical process has to traverse in reaching the outer layer, and their gradual mcrease iu dimensions being, as he states, proportionate to this distance. The "gradual increase in size " alluded to proves to us that Meynert has failed to identify the elements referred to — probably mistaking for them the larger pyramids ; and finally his argument falls to the ground when it is seen that the second layer of the " modified lower limbic type " contains larger elements than any of its subjacent layers. 96 COMPARATIVE STUDY OF CORTICAL LAMINATION. termed the clustered or nested and the laminar or solitary arrangement'' — the former showing tliese large cells aggregated into distinct oval clusters stationed at intervals apart — the latter ap- proaching the arrangement of these cells universally met with at the base of a sulcus, viz. : — solitary cells, stationed like sentinels wide apart, showing no tendency to gi-ouping beyond two or three at most in certain exceptional areas. In lower mammals (Rabbit and Rat), these discrete or distant clusters do not appear ; but what we take to be the homologue of this series forms COnfluent grOUpS — the nested arrangement being scarcely indicated, and a deep and dense formation replacing the latter. As ali-eady observed, however, these confluent groups thin out, in certain regions, into linear file, assuming the laminar or solitary arrangement. The cells of this series in these lowly-organised brains are peculiar in their extremely elongate pyra- midal or fusiform contour, and approach in this respect the form of the larger fyramiids in the human cortex rather than the configuration of the motor cell. As we pass from the confluent groups of elongated elements in the Rodent to the more specialised areas of higher mammals, we find that — (1) The cells become less elongate, more swollen, and irregular in contour ; (2) Their groupings become more and more discrete ; (3) The individual groups grow larger in size ; (4) The clustered arrangement occupies a wider range of cortex. In Plate i. this series of cells is richly represented ; they are densely congregated towards the margin of the hemisphere, and thence, continued to the limbic fissure, occupy the whole area embraced by Nos. 7 and 9 in Terrier's work.f Further back, however, this layer diminishes in depth and in wealth of cells, except at the exposed margin of the hemisphere, where it still remains a rich formation; beyond the margin and over the extra-limbic region, as fiir as the limbic fissure, the cells rapidly thin out into a simple linear series, and the five-laminated cortex appears. Still further back the series, in like mannei", thins out into a mere insignificant formation — yet always most richly developed along the sagittnl margin of the hemisphere. Plate ii., fig. 1, rej)resents the ai-rangement of the ganglionic series in the Pig, the regional distribution of which is almost identical in formation with that of the Sheep. For both these animals, it may be stated, that a Jive-laminated cortex, with clustered cell- groups^ spreads over the anterior half of the upper limbic arc (which * "Comparative Structure of Cortex Cerebri," Tranx. Hot/. Soc, part i., 1880. i Functions of the Brain, second edition, p. 259, fig. 78. THE CORTEX OF THE PIG, SHEEP, CAT, APE, ETC. 97 in these animals becomes superficial on the upper aspect of the hemi- sphere) over the frontal pole and along the first (or Sylvian) and second parietal convolution. Between these tracts is embraced the area of the third and fourth parietal convolutions, which have a six-laminated cortex and a distinctly solitary arrangement of these cells. If we examine the regional distribution in the Cat, the anterior portion of the upper limbic arc in front of and above the crucial sulcus; the frontal lobe; the first parietal, or Sylvian; and the anterior extremity of the fourth parietal or sagittal convolution, will all be found to exhibit the laminated cortex and nested cells ; yet the formation, excessively rich in the sigmoid gyri around the crucial sulcus, becomes much poorer in other regions. The six-laminated type extends over the whole extent of the upper limbic arc, behind the crucial sulcus, as far back as the retro-limbic annectant. The distribution of these nested groups of ganglionic cells in the ocelot, reproduces, in fact, very nearly the arrangement met with in the cat. The distribution of the same formation in the Barbary ape fore- shadows the arrangement which pertains to the more highly developed cortex of man. It will be observed from the foregoing remarks that the CPUCial sulcus in all these animals foi-ms a distinct limit to two types of lamination — peculiar to the vertex — the flVG- and the siX-laminated. types, and that this distinction is continued upon the mesial aspect of the hemisphere into which this sulcus extends ; that, similarly, at the frontal pole of the hemisphere, the vertical sulcus, regarded by Broca as the representative of the fissure of Rolando, also separates an inner or five-laminated from an outer or six-laminated cortex ; whilst the first parietal or Sylvian convolution in the pig and sheep partakes, in front of the Sylvian fissure, of the five-laminated type. In 1882,* after a minute enquiry into the cortical envelope of the brain in mammals, the author had reason to express himself as follows : — "The more fully I investigate the minute structui-e of the cortex and its deep connections, the more forcibly am I impressed with the belief that the vai'ious fissui'es and su.lci are not mere accidental productions,+ but have a deep significance of their own, dividing oft' the cortical superficies into morphologically, if not ijhysiologically, distinct organs. * Op. cit. , page 724. t That is, the result of pressure merely, during the development of the cranial arch. 7 98 COMPARATIVE STUDY OF COUTICAL LAMINATION'. Hitherto the fissures and sulci wliich I liave found to be boundary- lines of distinct cortical realms are the following : — "(1) The limbic fissure. (4) The superior parietal sulcus. {2) The infra-parietal sulcus. (5) The interparietal sulcus. (3) The crucial sulcus. (6) The olfactory sulcus. (7) The fissure of Rolando." Contrasts between the Brain of Man and of Lower Mam- mals. — When we contrast the cortex of the human brain and of the ape with that of the mammalian series below these types, certain strongly-marked resemblances in intimate structure, as well as equally notable divergences, present themselves. With respect first to the resemblances, it is to be noted that the various types of cortical lamination described in the lower mammals are reproduced in the brain of the ape and man ; and that the several layers maintain the same relative position throughout their depth, except where in certain cases a layer is wanting, or a new layer is interposed. Again, the individual elements constituting these layers — the granule cell, the angular cell, the spindle, the pyramidal element — although differing somewhat in dimensions and general contour, are yet sufficiently alike for their identification apart from their mere position in the cortex. In the next place, the lower limbic margin of the coi'tical envelope always presents the simpler forms of cortex; while, towards the vertex and mesially both towards frontal and occipital poles, the more complex forms of cortex pi'evaiL Another sti'iking resemblance occurs in the distribution of these laminar types — that characterised by the g'ranule cell predominating towards the OCCipltal pole ; that of the five- laminated type being especially developed towards the frontal pole : with this there is associated finally the gradual diminution in size of the one element towards the temporal and occipital lobe, and the increased dimensions and richness of formation of the other element in the same direction. These are some of the more striking resemblances presented between the cortex cerebri of roan and that of the lower mammals. As to the diverg'ences presented by these structures, we are early struck by the fact that the abruptness Of transition from one to another type of cortex, seen, e.(/., in the rodent, is not a feature in the human brain; in fact, transition-realms invariably intervene betwixt different types of lamination. The one fades into the other form so gradually that a line of demarcation can rarely be drawn. Thus, the five-laminated cortex characterising the "motor area" of the human brain affords no abrupt transition into the six-laminated cortex lying THE MOTOR AREA IN MAN. 99 external and posterior to it ; a mixed type intervenes, to which we have applied the term of "transition-realm." In the second place, the cells which we have ventured to term " motor " in the fourth layer of the human cortex, ditfer from what we have regarded as the homologous series in lower mammals, in being restricted as a typical formation to a comparatively limited area of the cortex — that of the rodent, e.g., being spi-ead over a far wider propor- tionate area of the hemisphere. This concentration of these cell- groups is best seen in carnivora, where, as already shown, they crowd around the crucial sulcus, especially at the angle of the sigmoid gyrus. They exhibit the tendency in a less marked degree in the higher apes whilst in miin they are concentrated in three or four districts occupy- ing, as before stated, but a comparatively limited area. A still more notable distinction between the higher and lower forms of brain presented by this formation, is the nested arrangement observed by Betz in the human brain. This segregation is complete, the groups being large and far apart. As we descend the scale, however, the more do we observe the tendency for such gi'oups to become confluent, and the series to be disposed as an equable stratum. Lamination of the Motor Area in Man.— That region of the cortex which has been shown in animals to be electrically excitable, and which upon stimulation calls forth responsive movements, has been termed the "motor area." It is, as we have just seen, charac- terised by a highly specialised structural arrangement. It is all the more essential that its structure in man should be clearly defined here, since it has been the subject of dispute between such writers as Meynert, Betz, Baillarger, Mierzejewski, and others, some authox'ities speaking of it as a five-laminated and others as a six-laminated type. At the outset, therefore, it is well to define our own view of the case, which is briefly as follows : — The cortex typical of motor areas is a flve-laminated formation, and the more absolutely the granule- cell formation (which, when intercalated, gives us the six-laminated type) is excluded, the more highly specialised become those groups of enormous nerve cells which go by the name of the " nests " of Betz. Where, therefore, these cell-clusters are best represented, there we find a five-laminated, not a six-laminated, cortex ; in other words, at these sites the granule-cell layer no longer exists. Such a specialised cortex is not spread uniformly over a large convolutionaiy surface at the vertex — any such notion would be very far from correct ; but it occupies very irregular, limited, and unequal areas along the course of the ascending frontal and the junctions between it and the frontal gyri, as well as the "paracentral lobule." These positions we shall more clearly define later on. 100 THE CORTKX CEREnUI IN MAN. Such irregularly-disposed ivreas are severed from each other by a transitional form of lamination, whereby these districts gradually merge into the six-laminated cortex surrounding them. This highly- specialised cortical formation is constituted as follows : — First Layer. — An extremely delicate pale zone, devoid of nerve cells, limits the cortex externally ; it i)resents all the features already described as peculiar to the cortical neuroglia (see p. 79). The outer surface, upon which the intima pia I'ests, presents numerous flattened cells, from which excessively delicate processes pass downwards into this layer. These cellular elements are often found, detached from fresh sections, floating in the medium around ; they form, in fact, a kind of epithelial limiting layer, extremely delicate and translucent. This first layer, or perijjheral zone, exhibits a pellucid homogeneous matrix (becoming finely molecular with reagents) and three structural constituents — (a.) cellular, (b.) nerve fibi-e, (c.) vascular. (a.) The cellular constituents are not numerous, are widely dispersed, and belong to the two categories of the perivascular or adventitial elements and the elements of the lymph-connective system already referred to (p. 83). The former measure 6 /x to 9 ^ in diameter, possess a spheroidal nucleus, stain well, and are seen disposed along the course of the blood-vessels. The latter often measure 13 jti ill diameter, possess one and occasionally two or three nuclei, are spher- oidal, flask-shaped, or irregular in contoui', stain uniformly and very faintly, and throw off numerous excessively delicate pi'ocesses, which in healthy fresh cortex can only be distinguished with difliculty. (b.) The nervous constituents embrace a series of medullated fibres, which course along the outer division of this zonular layer, and a minute network of the non-medullated fibres ai'ising from the cells of the subjacent layers by the subdivision of their apex processes. (c.) The vascular elements pass as long straight vessels for deep distribution, and as shoi't branched and smaller vessels through its structure ; they call for no special remark here. Second Layer. — A narrow belt of very closely aggregated nerve cells of irregular marginal contour, oval, pyramidal, or angular, with a proportionately large nucleus, forms this stratum. The cells vary much in size, and, as we have previously remarked, are much more richly developed in some than in other regions of the brain. They measui'e from 11 /i to 23 //- in length, 6 /a to 9 ^ in breadth, the nucleus being often 6 /i in diameter. They exhibit numerous delicate processes, radiating from the base and sides ; but a distinct apical process or frequently a bi-corned apex passes up radially to the surface of the cortex and undergoes rapid subdivision. Third Layer. — Subjacent to the above lies a deep belt of nerve THE MOTOR AREA IN MAN. 101 cells, the elements of which are characterised by their more or less elongated or pyramidal contour, and by the tendency to gradual increase in their size as they lie deeper in the cortex. The summit of these cells is elongated into a long delicate apex process, which passes radially upwards towards the peripheral zone. The opposite pole of the cell is irregularly dentated by the extension of numerous delicate processes, which are thrown off from the cell in all directions around : none of these processes turn upwards and pursue the course of the apex process. The dimensions of these cells in the outermost zone average 12 /^ x 8 /x; those of the deeper regions of this layer 23 iM up to even 41 /x in length, and 23 /x in shorter diameter. Each cell possesses a large nucleus and a distinct nucleolus. Small pyramidal cells, however, no larger than those at the commencement of this layer, occur even at the deepest part, side by side with the largest. Fourth Layer.— This layer presents us with the highly charac- teristic nerve element which we have already dealt with under the name of ''motor cell.'"' These great elements are found modified in different cortical realms as follows : — (a.) In the highest regions of the motor area (summit of central gyri and paracentral lobule) they are not only of gigantic size, as compared with other nerve cells around, but they form here the large clusters recognised by Betz. (6.) In the lowest regions of the motor area (lower end of central and junction with third frontal gyrus) they become small in size, even less than the superjacent elements of the third layer, but still retain their clustered disposition. (c.) Towards every sulcus these cells, be they large or small, lose their groupings, and at the base of the sulcus they always assume the drawn-out single file, spoken of as the " solitary " type of arrangement. {d.) Lastl}^, as this laminar type passes into that of the sensory realms, these cells have superimposed on them a layer of granule cells, but still retain a somewhat clustered disposition so characterising the transitional cortex; and they ultimately assume the solitary arrange- ment always seen in a sulcus, throughout the convolution at all heights, becoming, in fact, the six-laminated cortex typical of sensory areas. Such are the modifications undergone by these elements at different localities in the cortex. Fifth Layer.— This layer is represented by the series of spindle-cells, which beneath the summit of a convolution are disposed radially to the surface in regular columns, separated by bundles of medullated fasciculi, ascending from the central medullated core of the gyrus. Towards a sulcus they lose this radial disposition, and at the bottom of the sulcus are disposed in a narrow belt, their long axes horizontal 102 THE CORTEX CEREBRI IN MAN. to the surface, a position aptly termed reclinale. by Dr. Major. These cells measure from 25 (j, to 32 /x in length, by 9 /x to 13 /i. in breadth, and exhibit a large oA-al nucleus. Distribution of the Motor-cell Groups.— The specialised five- laminated cortex, with the cell clusters above referred to, has been stated to occupy certain areas of the ascending frontal, the three frontal gyri and the " imracentral" lobule ; it remains for us to indicate more ])articularly the exact site occupied by this type. In the scheme now- presented, the I'esults of an investigation into the localisation of these areas in eight human brains, made in 1878 by the author in conjunction with Dr. Heniy Clarke, are given.* The arrangement and distribution Fig. 8. — Left ascending frontal and parietal convolutions seen from the side, with the attached frontal gyri included in scheme of examination. H-K, Third group of ganglionic cells. N-0, Fourth group of ganglionic cells. M-N, Barren area. 11, Region of large elongate cells. P, Fifth group of ganglionic cells. •were strangely uniform in all these cases (see figs. 8 and 9). Variations in the extent of these areas of course presented themselves, but not to such an extent as to vitiate the general result arrived at, viz., that such cell-clusters wei-e grouped into several distinct areas, very clearly and definitely interrupted by the transitional type of cortex. The * "The Cortical Lamination of the Motor Area of the Brain," by Bevan Lewis and Henry Clarke, Proc. Hoy. Soc, No. 185, 1878. MOTOR CELL-GROUPINGS. 103 variations in the extent of such areas are no more than nii^ht be anticipated from the developmental variations indicated by tlie form of the central and neighbouring gyri. The upper end of the ascending frontal and its junction with the upper frontal gyrus are, as is well known, very variable in form and complexity, and such variations are, in our opinion, closely related to the more or less rich development of the specialised cortex under consideration. Reference to the scheme shows us that the ascending frontal gyrus may, in general, for con- venience of description be considered as consisting of two seo-ments — an upper, com^jrising two-thirds its length, into which run the superior and middle frontal; and a lower, comprising the remainino- third, continuous with the inferior frontal in front, and with the ascending parietal behind. Taking first the upper two-thirds, we find that the i;pper end has a somewhat broad attachment to the upper frontal. The lower end receives the middle frontal usually as a narrower-folded convolution, whilst between either junction a sinuous knee-like bend of the convo- lution exists. The broad upper extremity continuous with the upper R--.. Fig. 9. — Left ascending frontal and parietal gyri, with the attached frontal convolutions, as seen at the vertex. *A-D, First group of ganglionic cells. M-N, Barren area. E-G, Second ,, ,, N-0, Fourth group of ganglionic cells. H-K, Third ,, ,, R, Region of large elongate cells. frontal is the site of two important clustered groups (A-D and E-G) ; the plump lobule intervening between both upper frontals is the site of tAvo other similar groups (II-K) ; lastly, the extreme posterior end of the middle frontal gyrus shows similar cell-groupings (N-0), the areas of which extend into those of the ascending frontal at their lines of attachment. The upper group (A-D) presents by far the larger cells and the more 104 THE CORTEX CEREBRI IN MAN, perfect and dense clusters. Such clusters occupy especially the parietal aspect of the convolutiun, which is adjacent to the ascending parietal convolution. They appear, therefore, in the cortex forming the wall of the Kolandic fissure, and creep up towards the summit, where they rapidly thin out and disappear. The second group (E-G), connected with the lower attachment of the upper frontal, is entirely restricted to the frontal aspect of this gyrus, and does not overleap the confines of the vertex and spread into the Rolandic fissure, except at its most inferior part. Tlie third group (H-K) forms a large area, covering the parietal or Rolandic wall of its knee-like lobule (upper two-thirds), and spreads over the vertex of the convolution at this site. Between it and the fourth group occurs a narrow territory wholly devoid of this formation; transitional cortex extending until we reach the latter group. At the junction of tlie middle frontal (N-O). — This group, as before stated, becomes continuous with that of the middle frontal ; it also begins within the fissure of Rolando and sweeps over the vertex. The fifth and sixth groups (P) are indicated approximately on the scheme, but appear subject to considerable variations in extent. To the foregoing groups must be added a further area, occupying the posterior two-thirds of the lobule on the inner or mesial aspect of the central gyri, lying in front of the fissure of Rolando and above the gyrus fornicatus, usually termed tlie paracentral lobule. Some enor- mous cells are found in the grouping's of this area. Transition-Realms of Motor Cortex.— It will be observed that, in the above enumeration of specialised areas, we have by no means covered the ground assigned to the motor area by Prof. Ferrier : the lower end of the ascending frontal, the whole of the ascending parietal, as well as the postero-parietal lobule have been omitted. In fact, these latter regions do not exhibit the specialised cortex referred to, but are covex'ed by cortex transitional in its character between the former and what we find existing in sensory realms. If, for instance, the upper extremity of the ascending parietal be subjected to examina- tion, we find that its anterior aspect, dipping down into the Rolandic fissure, also possesses large ganglionic cells similar to those in the motor area in advance of this site. The nests or clusters, however, are not only thinly scattered, but contain few cells, and the latter diminish rapidly in size at lower levels along this convolution; it is only at the upper extremity of the gyrus that large cells are found. Throughout by far the greater extent of this convolution, the cells of this layer are exact representatives of those found in the ascending frontal, hut are greatly diminislied in size, and although often arranged in clustered groups, the groups are poor in elements and sparse. TUAN8ITI0N-REALMS AND SPKCIALISED AREAS. 105 The major distinction between the transitional and specialised motor cortex is in the presence of a gradually increasing belt of small pyramidal or angular cells, which are almost identical with those of the second layer, and which here insinuate themselves between the largest cells of the third layer and the sparse nests of the ganglionic cells. Thus, with the fading-off of this rich clustered formation, we get the intercalation of an entirely new layer of elements, which grows in importance as we approach sensory realms. Now the whole ascend- ing parietal, postero-parietal, and lower end of the ascending frontal divisions, partake of this six-laminated type of cortex ; and, moreover, as we approach the margin of the brain-mantle— i.e., the lower end of the central gyri — the "motor" cells become smaller and yet smaller, forming eventually insignificant clusters of minute elements. Eoughly stating the case, we may say that the fissure of Rolando, in the upper two-thirds of its extent, separates the typical motor cortex from the transitional cortex; whilst, in like manner, the interparietal fissure is the boundary between the transitional and the typical sensory cortex below and posterior to it. It will be apparent from the foregoing chapter on the histological structure of the cortex cerebri that its many varieties of type depend, for the most part, upon the operation of one or more of the following circumstances. There may be — (1) Inverse development of superimposed layers— such, for in- stance, as was noted in the rodent's brain, where the third layer of cells invariably became shallower with increasing richness of the second layer of angular elements and vice versa. As the one formation tends to die out, the other tends to increase in thickness and density. (2) Substitutional StPatification may occur— i.e., a layer of cells may have other elements mixed with it, and gradually pre- ponderating to the exclusion of its own cells, and then a change in type may occur; e.g., the granule cells may gradually intermingle with the angular elements, and excluding them entirely, form a deep belt in their place, or vice versd. (3) Intercalation of new layers, as in the appearance of a six- laminated type, where the angular elements gradually insinuate themselves between the third layer of pyramidal cells and the sub- jacent ganglionic series. Or, again, an altered type of cortex may proceed from — (4) An unusual development of the elements of a certain layer, as when the angular element of the second layer develops into tlie large globose cell of this layer in the modified lower limbic type of the Rat, Rabbit, Mole, &c.; or where the elements of the fifth layer in the sensory cortex become changed into the large complex cells of the 106 TIIK CORTEX CEREBRI IN MAN. motor grouping's. As we traverse the whole range of tlie cortex, one or other of the above influences is at work in modifying its form of stratification. Passing now from the question of cortical lamination to the cell itself, its conditions of life and functional activity, and its relationship to its immediate environment, let us first ask ourselves what signi- ficance, if any, is presented by the great variations in Size of the different nerve cells : is it but an accident of their position in the cortex as to relative depth : is it indicative merely of the cuje of the cell : is it dependent on their specific functional connections : or upon the degree of complexity attained by the nerve element 1 Is it a mere " accident " of their position ? This has been assumed by Meynert upon premises which cannot for one moment be admitted. In an article published some ten years since,* Meynert summarily dismisses the observations of Betz on the "giant cells" of the anterior central convolution (" ascending frontal ") as of no importance, because the explanation of their huge size is solely due, according to Professor Meynert, to the greater depth of the cortex of this convolution ; the apex processes of these cells, therefore, having to traverse a greater distance in their low-lying groups ere they reach the outer layer of the cortex. Their groupings, also, he explains as a mere pressing together of the cells by the bundles of nerve fibres passing upwards from the medulla of the gyrus. It is unfortunate that the great Vienna histologist should lend the weight of his authority to so utterly untenable a position. It is obviously natural to suppose that the greater the distance along which a nerve cell has to transmit its energy, the lax'ger will that nerve cell probably be ; in the next place, as we are dealing with the non-mechdl ated fibre of the apex, we might also assume that the loss by difiusion around nuiy also demand a comparatively stronger discharge in such a case, and hence a pro- portionately larger cell : all this is, of course, in accordance with Meynei't's assumption. Moreover, that the pyramidal cells steadily increase in dimensions with their depth is also in favour of his position, were it invariably true; but this is not the case. It has been shown in our examination of the brain-cortex in man and in mammals, that alongside the largest pyramidal cells are numbers of others of the smallest dimensions, which, according to Meynert's view, should be much larger than the superimposed elements. Even in the woodcut illustrative of the five-laminated cortex given in Meynert's original memoir,t we find numerous exceptions to his rule, that the smaller element is always higher in the cortex, and, given a section * Psi/chiairi.9ch('s Centrcdhlatt, No. 6, 1878. + " The Brain of Mammals," Syd. Soc. Trans. SIGNIFICANCE OF CELL-GROUPINGS. 107 of brain examined by the fresh methods, such exceptions become very nnmerous indeed. That the general tendency to this larger size with tlieir deeper position is maintained, we of course allow; what we dis^iiite is the explanation afforded, which leaves out of consideration the numerous exceptional small elements referred to. In the next place, were this explanation held tenable for this form of cortex, the formation described by us as the modified loweP limbic cortex of the rodent woiild entirely confute such a principle, since here we have a series of very larg'e cells, the largest by far in the whole depth, here lying quite superficial as the second layer of the cortex. What then is the more probable explanation of this increase in size of the cell ? If we carefully note a section of fresh bi-ain, we find that although the majority of the pyramidal cells steadily enlarge at greater depths — the ganglionic cell-clusters, but a very short remove from the largest pyramidal cells, represent an enormous leap in dimensions. Plates i. and ii. represent conclusively what we have here stated : the outlines of the cells are represented at their re- spective levels as sketched by the camera lucida, and it is seen that the upper elements measure but 18 <«. x 11 /x, being quite superficial in the series of small pyramids : that the lowest of the series include elements measuring but 36 /a x 23 /a, although at a depth of 1116 /i beneath the former : whilst a little higher we find numerous cells measuring 18 /^ x 13;«- in size — i.e., very slightly larger than those of the superficial series, although 953 /a beneath them. When, however, we pass from the largest pyramidal to the ganglionic cells lying only 209 ijj lower down, we come suddenly upon huge elements measui-ing- from 84 /i to 97 /* in length, by 36 (m to 46 [m in breadth. The increase in dimensions, therefore, is so sudden as to be out of all proportion to the greater depth of this layer. Is there, then, no constant re- lation between the size of the cell and other conditions to which it is exposed, which may give us the required explanation 1 This we believe to be the case: we find as a constant accompaniment of increasing bulk, much more complex relationships with surrounding cell-districts — in other words, the larger the cell, the greater the number of its branches. But the older the nerve cell, the longer time has it had for the establishment of organised relationships around ; and hence it follows that the older cell is also the larger element. In fact, it appears to us that the size of the nerve Cell is chiefly dependent upon its ag'e and the multiplicity of its surrounding" connections. There is, however, another factor which must be allowed much weight in the case of the motor cortex. The medullated fibre (axis-cylinder process), which arises from the basal extremity of the great motor 108 THE CORTEX CEREBRI IX MAN, cells, traverses uninterruptedly an enormous distance to reach the respective cell-groups which rei)reseut in the spinal cord the muscu- lature of the limbs. The distance traversed is very unequal between the lumbar and cervical groups ; the cortical centres representing the lower extremities having not only a greater distance through which to discharge their energy, but a far more massive musculature to call into activity, than is the case with the arm-centres of the cortex. Again, the cortical centres for the upper extremities not only act through a greater range, but they innervate larger groups of muscles than do the centres for the head and neck, the muscles of articulation, deglutition, &,c. It would, therefore, be natural to presume that the cortical cell groups representing these respective regions would differ considerably in the size of their individual elements. The histology of the motor area fully warrants us in stating this to be the case : the smallest cells being found at the lower end of the central gyri and Broca's convolution — and thence increasing rapidly in size upwards towards the centres for the great musculature of the limbs, as illus- trated by the following table of actual measurements : — Comparative Size of Braix Cells. AvF.RAOE Size of Gakgliun Cells. Largest Cell — Maximum Sizb. Left ascending frontal (upper end), . 60 M X 25 /x 90 m X 45 m Frontal gyri (areas at posterior end), 45 m X 20 M 69 M X 27 /i Left ascending frontal (lower end), . 35 M X 17 M 41 M X 18 m Left ascending parietal (upper end), . 66 M X 41 ju 88 M X 41 M ,, ,, (nuddle third), 46 M X 37 fx 55 M X 32 M ,, ,, (lower third), 41 /x X 24 ,x ... We find this law fully borne out by the results of an examination of the bulbar and spinal cell groups in different regions — the g"reat9P musculature being presided over by the groups of laPgest CellS. We, therefore, see reason for regarding the dimensions of these cells in the cortex as influenced by — (1) Range of discharging distance. (2) Size of musculature innervated. (3) Age of nerve cell. (4) Resulting multiplicity of cell connections. It will be seen from these conclusions that the deopsst elements are not necessarily the oldest, for some of the lowest of a series are THE NUCLEUS OF THE NERVE CELL. 109 very small and very simple in their connections — the reason for this was shrewdly given by Dr. Ross from observations on the develop- ment of the motor cell groups in the anterior cornu of the spinal cord.* His statement is to the effect that the younger cells are in close con- tiguity to the blood-vessels : that as growth proceeds, they are thrust further aside, so that the larger and older cells lie midway between parallel vessels. No one familiar with the structure and disposition of the cortical elements of the bi'ain will fail to see the force of this sugges- tion. These small pyramidal elements which we meet with constantly side by side with the older cells, are found often with very few lateral branchings, and the apex-process thins out rapidly and is lost to view at a short distance from the cell, notably contrasting in this respect with the older elements, whose apex-process can be traced up into the first layer or peripheral zone. It is important to note this fact — new elements are being continually formed, which for some time have no connection with the grey meshworh of the outer zone of the cortex. These extensions from the apex or centric pole of these young cells continue to thrust themselves further outwards, meanwhile forming lateral connections by delicate offshoots, with nerve-fibre plexuses around. Can we suggest the significance borne by the nucleus in the autonomy of the nerve cell? — The results of physiological experimenta- tion by Ferrier, Hitzig, Horsley, and Beevor, and clinical investiga- tions, especially those of Hughlings- Jackson, appear conclusively to indicate the anterior or fronto-parietal realms of the cerebrum as especially motor ; and the occipital and temporo-sphenoidal lobes as especially sensory, in their endowments ; and it is, to say the least, highly suggestive that the large pyramidal and ganglionic cells peculiarly characterise the former, just as the smaller elements and densely aggregated granule cells characterise the latter — that, in fact, as we pass from motor to sensory realms, so we find the nerve cells progressively diminishing in bulk and the granule cell progressively pi'eponderating in number. Dr. Hughlings-Jackson long since sug- gested the representation of small muscles by small cells, requiring as they would, in their almost ceaseless lively activity, rapid and frequent, though short, discharges of energy ; in fact, he regards such small elements as necessarily of unstable equilibi'ium. His words are as follows : — " I have suggested that the size and shape of cells, as well as their nearness to the tumour, or other source of irritation, will have to do with their becoming unstable ; other things equal, the same quantity of matter in many small cells will present a vastly greater surface to the contact of nutrient material than the same * Diseases of the Nervous System, vol. ii., p. 26, ISSl. 110 TlIK CORTKX CEHEUHI 1\ MAN. quantity in one large cell. I have also susfgested that small muscles, or, more properly, movements which require little energy for the displacements they have to etlect (tliose of the face and of the hands in touch, for example), are represented by small cells. Such movements are rapidly changing during many of tiie operations they serve in — writing, for example — and require repetitions of short liberations of energy, and necessitate quick recuperation of tlie cells concerned. Movements of the upper arm are, in comparison, little changing, and require persistent steady liberation of energy." * When, however, we consider the assumed sensory element of the cortex — the minute angular and granule cells — we must not lose sight of a remarkable distinction between them and the assumed motor unit, and that is, the great proportionate preponderance of the nucleus to the cell itself in the former. That the nucleus does exert souie mysterious influence over the nutritive and functional activity of the cell has long been surmised ; and the results of our histological inquiry indicate that nuclear degeneration within the nerve cell is peculiarly associated with certain states of mental and motorial in- stability. We have long been accustomed to regard it as related more definitely to the functional activity of the cell, and less direclly related to the nutritive activity of the cell. In other words, the cell is subject to a constant supply of nutritive plasma — it gradually assumes a state of nutritive instability, and will necessarily discharge its accumulated energy in accordance with the simple law of nutri- tive rhythm — the resulting stable equilibrium is succeeded by a measurable period ere the potential energising of the cell has once more brought it up to its former state of instability. Were this all that occurs, the process of storag"e and liberation of energ'y would be a simpler rhythmic process than the more compounded rhythm which actually pertains to mental operations. If, however, we regard the nucleus as affecting the functional activity of the cell, as, in fact, restraining or inhibiting" its discharg-e, as a kind of imperium in imperio exercising a controlling influence upon the perturbations which reach the cell from sensory surfaces : then the presence of a healthy nucleus would become an all-important feature in the cell-life — a feature of the utmost significance to us in our patho- logical enquiries. What really does occur when these nuclei are especially affected by morbid processes, we shall refer to more particu- larly in our chapter on the epileptic neuroses. The view we have here taken of the significance of the nucleus would lead to the conclusion that when, from its degeneration or morbid state, it fails to inhibit the cell, these nerve elements would be subject to a rapid runniny-doivn * " On Temporary Paralysis after Epileptiform and Epileptic Seizures," Brain, vol. iii. , footnote to p. 43G. EXCITABILITY OF CORTEX. Ill on trivial excitation, and in servile obedience to the law of nutritional rhythm ; in fact, we should here find an explanation of morbid insta- bility such as, e.g., in motor realms results in convulsive states, and in the substrata of mental operations in varied psychical states and reductions in consciousness. It is these considerations which induce us to regard the dispropor- tionately large nucleus of these small angular elements of the second layer of the cortex as being of some significance. Subject as such minute cells are to a rapid accumulation of energy, we might presume that some restraint must be established to prevent their reckless liberation of energy, and, hence, we believe such restraining capacity to be afi'orded by the very large nucleus. In the next place, we have every reason for believing that this superficial belt of angular cells is in direct organic connection with the subjacent cells of large size, and that their morbid instability would, therefore, aff"ect these larger units, which, from the small size of their nucleus, would be more subject to the law of nutritional rhythm in their discharge of energy. As indicated by Dr. Ross, and also in the preceding note by Dr. Hughlings- Jackson, the large cell would present a far smaller area in contact with nutrient material than the same amount of protoplasm broken up into numerous minute elements; and hence, such large cells would labour under nutritive disadvantages — would be reservoirs for the slow accumulation and storage of energy, which, when liberated, would again result in a tardy reinstatement of nutritive instability. Electrical Excitability of the Cortex.— Fritsch and Hitzig were the first to demonstrate, in the year 1870, the excitability of the cortex in animals to the galvanic current; and three years later Prof. Ferrier prosecuted with the faradaic current his first investigations into the functions of the cerebral hemispheres. The method of stimulation employed by Ferrier was, to use his own description, "The application of the electrodes of the secondary spiral of Du Bois-Reymond's induc- tion coil, connected with a cell of the mean electro-motive power of one Daniell. The resistance in the primary coil was such as to give a maximum current of 1-9 absolute unit, as estimated for me by my colleague, Professor Adams. The induced current generated in the secondary coil at 8 cm. distance from the primary spiral was of a strength sufiicient to cause a pungent, but quite bearable, sensation when the electrodes were placed on the tip of the tongue." * We can but briefly summarise here some of the more important facts elicited by these experimental methods respecting the reaction of the cortex to electric stimuli. Latent Period of Stimulation and Summation of Stimuli. * Functions of the Brain, 2ud Edit. , p. 223. 112 THE CORTEX CERp:i5Kl IN MAN. — It is from these phenomena we infer that tlie cortical areas found to be excitable are really centres, in the proper acceptation of tlx- tcim. It must be remembered that a ganglionic centrum is an elabOFEtive structure, and that stimuli api)lied to it meet with delay ere the result- iu^' response be elicited. The excitation of a centre is therefore accom- panied by the time element seen in nerve stimulation in a marked degree, and this is very appreciable in the stimulation of the so-called psychO-motOP centres of the cortex. This is well brought out on contrasting the effects of a carefully-regulated current applied to the cortex of this realm, with the effects of the same current as applied to the medullated strands immediately beneath, by first excising the overlying cortex. In the first place, we find (after, of course, abstracting the time requiied for transmission down spinal cord and motor nerves and the latent pei'iod of the muscle) that the retardation is 0045 of a second, and in the latter place, 03 of a second {Franck and I'ilres). So, also, if very feeble stimuli be applied to the cortical centres their summation occurs, so that no contraction takes place until several stimuli have been delivered. Of the many interesting facts revealed by the researches of Schafer and Horsley, Franck and Pitres, relative to the eflTect of electric stimuli on motor centres, the moi'e important may be stated as follows : — (1) In the savie animal tlie number Of Stimuli per second requisite to produce a continuous contraction is always the same for cortex, motor nerve, and muscle. (2) A continuous contraction does not occur on stimulating a motor centre, until the rate of stimuli reaches 4G per second ; below this, single contraction occurs for each shock or thereabouts. (3) The contractile rhythm of muscle, whether it be cortex, corona radiata, or spinal cord that is stimulated, has been shown to follow this rule : — Rhythm of stimulus below 10 per second = muscular rhythm identical. Rhythm of stimulus at above 10 per second = muscular rhythm constant and independent {Schafer and Horsley). Rhythm of stimulus about 4G per second = continuous muscular contraction {Franck and Fitres). (4) The muscular curve of cortical stimulation is less sudden in its rise and more sustained than the curve shown in subcortical stimulation, and all voluntary muscular contractions show a similar rate of iindulation in the muscular curve. Modifying" Circumstances. — The excitability of the cortical areas is subject to great variation. Thus, different animals vary in the FUNCTIONAL EQUIVALENCE. 115 intensity of stimulus required to produce the adaptive movement; and the same animal will vary from time to time as regards this susceptibility, according to the conditions in which it is placed. Severe hsemorrhag'e greatly reduces or even abolishes, whilst moderate loss of blood exalts, the excitability of these parts {.\hink, IJitzig). Prolonged expOSUre and Stimulation rapidly exhaust, whilst apnoea, and the deep narcOSiS of chloroform, ether, chloral, and morphia abolish it (Schif), so that all animals completely anjesthetised fail to reveal such excitability. So if the cortex be in a state of inflammatory irritation, its excitability can be readily aroused by even mechanical stimuli, which in health have no such effect. In new-born puppies, Soltmann obtained early response to stimulus of the corona radiata, whilst it was not until the te7ith day that he was able to obtain such response by stimulation of the motor cortex. Functional Equivalence. — Some authorities have inclined to the belief that a process of functional compensation occurs when injury, disease, or experiment has removed a motor centre : that either the opposite sound hemisphere, or even some other portion of the same hemisphere, may assume the functions of the area destroyed. It is undoubtedly true that centres bilaterally associated and least inde- pendent recover soonest from a lesion of one centre, and are least affected in the issue, as is indicated in the history of all cases of ordinary hemiplegia; but this can scarcely explain what we meet with in experiments on dogs. Here it has been shown that if the motor centres of one hemisphere be destroyed, the resulting hemiplegia is soon recovered from, and if this were due to the substitutional activity of the other hemisphere, ablation of the centres in the latter would presumably paralyse both sides. This, howevei', is not the case ; for, as Carville and Duret clearly proved, the reinstated power of the limb first paralysed is not affected by the second operation. The explanation is, therefore, not one of functional substitution by another region, but is really due to the more automatic character of the movements in these animals ; in other words, these movements are far more dependent upon the activity of lower centres and are less represented in psycho-motor or cortical realms. In man and the monkey such movements are brought more under the control of the volitional centres— they are removed, as it were, to a higher plane of activity, are less automatic, more independent, and their removal by disease or injury is followed by absolute paralysis of the opposite members. Phenomena of Electric Stimulation of Cortex.— Professor Ferrier ^ives preference to the faradic stimulation of the cortex, a 1 g 114 TlIK COUTKX CICKICUUI IN MAN. rjitlier tliiiu tin- galvunic, .since tlie first requisite is a stimulus of a certain duration, and not the momentary eilect of the opening and closing of a galvanic circuit ; the latter also has the further objection of inducing electrolytic decomposition of the brain-surface if its action be long sustained. If the intensity of current be greater than necessary, diffused stimulation occurs, so that neighbouring areas are aroused into consentaneous activity. Extra polar conduction has also been proved to occur by Carville and Duret, as seen in contractions of a frog's gastrocnemius, the sciatic nerve of which rested on the occiput of a brain, the motor area of which was stimulated. This fact, however, does not vitiate the results of a minimum current applied to the motor cortex. Conduction to lower centres, as the basal ganglia, has been by some assumed to be explanatory of the results of stimulation of this motor area. This argument is, however, wholly disposed of by the fact that (1) direct stimulation of these ganglia (corpora striata) results in entirely different movements, not the adaptive, purposive movements which the psycho-motor centres elicit; and that (2) when we bring the electrodes upon their immediate superficial aspect, at the insula, no response whatever occurs. As might have been surmised, the radiations of the coronal medulla, entering into connection with the motor cortex, are in like manner functionally differentiated ; and, as shown by Burdon-Sanderson, when the cortex is removed and they are stimulated, similar purposive movements can be called forth. Proximity of Psycho-Motor Centres. — It has been seen that the so-called motor cortex, distinguished by the nested cell-g"rOUps of the fourth layer, is so distiibuted as to occupj^ distinct areas, separated only by narrow intervals from each other. This fully accords with the fact that the phenomena of electric stimulation of the cortex demonstrate the clOSe proximity of wholly distinct centres, as Pi-ofessor Ferrier remarks—" Areas in close proximity to each other, separated by a few millimetres or less, react to the electric current in a totally different manner." * * Loc. cit., p. 229. PART II.— CLINICAL SECTION. General Contents.— States of Depression — States of Exaltation — Fulminating Psyclioses— States of Mental Eufeeblement— Recurrent Insanity— Epileptic Insanity— General Paralysis of the Insane— Alcoholic Insanity— Insanity at the Periods of Puberty and Adolescence- At the Puerperal Period— At the Climacteric Epoch — Senile Insanity. STATES OF DEPRESSION. Contents.- Mental Depression Defined— Decline of Object-Consciousness— Pase of Subject-Consciousness— Muscular Element of Thought- Failure in the Rela- tional Element of Mind— Sense of Environmental Resistance— Reductions to Automatic Levels- Sense of Effort— Restricted Volition— Enfeebled Repre- sentativeness—Transformations of Identity— The Physiological Aspect— Defec- tive Circulation— Nutritional Impairment— Explosive Neuroses— Hunger of the Brain -Cell— Painful and Pleasurable Mental States— Reaction-Time in Melan- cholia—Degrees of Mental Depression— Clinical Varieties of Melancholia- Simple Melancholia— Delusional Melancholia— Hypochondriacal Melancholia- Melancholia Agitans— States of Mental Stupor— Stupor and Hypnotism— Acute Dementia. Painful mental states are of course normal under certain conditions in health and sanity. As in the intellectual sphere it is but human to err, so in the emotional sphere it is but human to suffer, and to feel acutely : hence it is not the intensity of mental pain (although this is often far greater than in healthy states similarly aroused) that characterises this phase of disease, for if the anguish be the outcome of commensurately painful circumstances, we regard it as but a natural reaction. It is in the fact that the emotional storm is out of all proportion to any exciting cause, that we recognise the departure from the standard of health. It is essential, therefore, that we carefully in- quire into the antecedent circumstances of our patient's disorder, so as to determine whether there are adequate causes to account for the distress apparent — if so, there is but normal physiological reaction, and cerebral function cannot be regarded as deranged. If, however, the mental pain is the result of trivial exciting agencies, if moral or physical agencies arouse emotional states out of all proportion to what would occur in the healthy mind, then we infer that the grey cortex of the brail! is so far disordered as to functionate abnormally, and we speak of the result as pathological depression. It is clear, therefore, that our chief difficulty in distinguishing normal from abnormal states of depression depends on our correct estimate of the correspondence of emotional states and their excitants, due allowance being made for 116 STATES OF DEPRESSION. special ppcuHaritios of tonipcramcnt. We cannot apply the same rule to a callous, nncinotional nature as to one refined and sensitive. In our search for adequate causes we do not confine our attention to the patient's environment ; we must look for possible moral agencies, such as shock, disappointment, domestic affliction, together with physical agencies, such as injury, disease, privation, or, again, overstrain of mind or vicious habits of life — in all alike, the real causes are centric, and consist in a disordered function — the incapacity of reacting commensurately in the conditions in which the organism is placed — in physiological terms it is a "disproportionately excessive" reaction. " The melancholia which precedes insanity is distinguished from the mental pain experienced by healthy persons by its excessive degree, by its more than ordinary protraction, by its becoming more and more independent of external influence, and by the other accessory affections which accompany it " (^Griesinger)* By one thoughtful writer it has been suggested that melancholia might be spoken of as a homologous, while mania and monomania might be termed heterologous affections.! This, of course, would imply a quantitative and qualitative distinction ; but, since emotional and intellectual states may be disordered quali- tatively as Avell as quantitatively, the parallel is scarcely applicable. Emotional disturbances as the result of disease differ from the normal reactions of health, not only in volume but also in nature : as Herbert Spencer indicates, the correspondence may vary in two directions, quantitatively and qualitatively, in degree as well as in kind. With respect to the non-relational feelings — the appetites, pains, &c. — Herbert Spencer says : — " Their great indefiniteness of limitation and accompanying want of cohesion forbid unions of them, either simultaneous or successive. Obviously, the emotions are characterised by a like want of combining power. A confused and changing chaos is produced by any of them which coexist." | This very want of relativity, this dissociability and absence of a tendency to form strong coherent groups, at once account for the comparative difficulty of estimating the degree of mental alienation in melancholia, as contrasted with states of delusion, where we are dealing with definitely measurable factors. Simple pathological depression is ushered in by that failure in object-consciousness which invariably inaugurates a corresponding rise in subject-consciousness ; and which, we have reason to infer, implies a diminished functional activity in those realms of the cerebrum correlated thereto. The patient exhibits a growing indifference to his * Mental Disrates, p. 210, t Piojc/iohgical Medicine, Bucknill & Tuke, 3rd edit., p. 440. t Principles of Psychology, vol. i., p. 177. ORIECT- AND SUBJECT-CONSCIOUSNESS. 117 former pursuits and pleasures : the ordinary duties of life and business become irksome and devoid of interest : especially do all forms of mental exertion cause ennui and distaste — the attention cannot as formerly be directed without undue effort, and so reading becomes laborious and thought sluggish and monotonous. The environment fails to call up pleasurable associations — a dreariness and gloom pervade the outside world, since it is interpreted in terms of the predominant feeling. All aspects of object-consciousness alike indi- cate the neg"ative state. There is a want of vigour in the representation of the environment, and feelings aroused thereby are at a low ebb. Corresponding to this there is a rise in SUbject-COnSCiOUSneSS, shown in the prevalence of painful mental states — the predominance of gloomy emotions. This is the positive aspect of the patient's mental state, and this aspect is the one which chiefly obtrudes itself upon our notice. It is characterised especially by an all-prevailing gloom, varying in degree from mild depression uj) to acutely painful mental states. The subject may complain of vague anxiety — a feeling of some impending evil — an indefinite prevision of coming sorrow, which gives its own colouring to objective existences : he retires from social converse, which but adds to his irritation and mental distress, gives himself up to introspective states, in which he dwells upon the present contents of his mind, broods over his morbid feelings, and falls into long reveries, the subject-matter of which partakes of the same gloomy colouring. He is hyper-sensitive over trifles, irritable and impatient, or his querulous humour may alternate with sullen silence and obstinacy. Even in this reticence and retirement from social responsibilities, this growing apathy to all around or feeling amounting to dislike or direct hostility, we recognise the origin of that subjectivity, that egoistic state which, in more advanced affections of the mind, conjures up delusions of encroachment and persecution. In every case of mental depression we have this duplex state to study — the negative affection of object-consciousness, and the positive affection of subject-consciousness. Griesinger also asserts that forms of mental depression are due to states of cerebral irritation and mental excitation; but he apparently fails to recognise the duplex nature of the phenomena in neglecting the distinction between the two realms which comprise the totality of consciousness. Thus he says : — " In employing the term, ' states of mental depression,' we do not wish to be understood as implying that the nature of these states or conditions consists in inaction and weakness, or in the sitpprms'ion of the mental or cerebral phenomena which accompany them. We liav-^e much more cause to assume that very violent 118 STATES OF DEPRESSION. stales of irritation of the brain and excitation in the mental processes are here very often the cause; but the general result of these (mental and cerebral) processes is depression, or a paii)ful state of mind. It is sufficient to recall the analogy to physical pain ; and to those who imagine they make things better by substituting 'cerebral torpor' and 'cerebral irritation' for 'depression' and 'exaltation,' it may fairly enough be objected that in melancholia there is also a state of irritation." * Had he asserted that both conditions co-existed, a state of cerebral torpor in the physical substrata of object-COnsciOUSneSS, and a state of cerebral irritation in the substrata of SUbject-COnSClOUSneSS, he would, we think, have faithfully recorded the morbid phenomena. The normal variations in these antithetic halves of consciousness, with which reverie and dreamy states render us familiar, have been thus lucidly expressed by Herbert Spencer, when in reference to the vivid and faint aggregates of consciousness he says : — " Though entire unconsciousness of things around ui? is rarely if ever reached, yet tlie consciousness of them may become very imperfect ; and this imperfect consciousness, observe, results from the independence of the faint series becoming for the time so marked that very little of it clings to the vivid series." t Decline in Object-consciousness. — The various states of con- sciousness and the changes from one to the other constitute collectively the sole elements of mind ; and our considerations, therefore, apply to feelings and the relations between feelings. First, let us note that the variations from the normal state embrace a quantitative and a qualita- tive change. Feelings may succeed each other in rapid order, or in slow, monotonous file ; they may arise in serial order, or numbers of disconnected states may simultaneously thrust themselves into the field of consciousness, producing turmoil and indefinite vague emotion and thought. On the other hand, mental phenomena may exhibit a qualitative alteration, such as, e.g., is shown in degrees of intensity of feeling, or again, of definiteness as due to the more or less relational character of the product. The decline in object-consciousness which occurs in states of pathological depression, such as we are now dealing with, presents us with the following features : — (a.) Enfeebled representativeness: (6.) a lessened seriality of thought (weakened attention) : (c.) diminution or failure in the muscular element of thought. The last appears to us so important a factor in these morbid states, as to demand here somewhat careful and detailed consideration. Failure in the Muscular Element of Thoug-ht.— The constant accompaniment of depressed mental states is an enfeebled range of * "Mental Diseases," Syd. Sor., p. 210. t Principles of Psycholor/y, vol. ii. , p. 459. FAILURE IN THE MUSCULAR ELEMENT OF THOUGHT. 119 perception; and, since every perception is a complex phenomenon of coniposite states of consciousness — if one or other of the essential elements of an idea or of a presented object be wanting — the definite realisation of such object or idea is defective. The loss may be in the more sensuous element of the perception — in those qualities, in fact, of body which are categorised as dynamic (" primordial "), e.g., colour, odour, taste, or the pure sensations appreciated by the specialised senses of sight, hearing, taste, or smell ; again, the loss may pertain chiefly to the statical or primary attributes of the perception— those of size, position, form. A vigorous perception of these primary or space attributes of body is dependent largely ttpon our " sixth " or muscular sense. If, therefore, this sense undergo any diminution, so will the space-attributes of body become less vividly conceived— the cognition is hut feebly produced. The sense of sight is pre-eminently interwoven with the muscular mechanism involved in our perception of objects : and, since the retinal field can only receive the impress of these dynamic attributes of body by means of a musculature, which rotates the eyeball and so disposes the visual axis suitably, the know- ledge of such movements, comprising figure, bulk, and position in space, becomes inextricably blended with these dynamic attributes. There is little doubt that the retinal impressions are, in states of melancholic depression, but feebly produced; but whether the muscular element of perception is first or simultaneously aflfected, is an enquiry of special interest. And here we must distinguish between that portion of the muscular element which enters into our higher intellectual con- cepts, and that grosser factor of the large musculature of the limbs, kc, which subserves the purpose of locomotion and coarse movements. The sense of muscular contractions which forms the basis of the primordial ideas of form, size, position, lapses eventually in consciousness as a pure sense of muscular contraction. With the larger musculature this is not so : it is essential that the movements of the limbs, their con- traction, and tension should be exquisitely registered centrally, as thereby alone can we gain an idea of their position in space apart from the sense of sight, and appreciate the relative weight of objects and the resistance ofi'ered by them. The unrestrained action of these muscles signalises to our minds the absence of external resist- ance, and the rise in the muscular sense which accompanies any resistance opposed is the direct measure of such resistance. Similarly, with the " muscularity of thOUg"ht," which in the normal state is of free and easy play, the rise into consciousness of its primordial muscular element means efi'ort, and at once suggests to the mind the same notion of resistance in the environment. It is obvious, we think, that the muscular element is the first to decline : for 120 STATES OF DKl'RESSION. cases of intense grief, as from a sudden mental shock, are associated with a notable contraction of this sphere, and space diinemsions are altered and contracted. This feature is one of importance, since it clearly points to the decline of the more relational elements of the perceptive process. The rohitions of bulk, coiitignration, and position are recognisable only by the intellectual operations of the miud, and it is this intellectual element which is earliest enfeebled. This follows, therefore, the inverse order of the evolution of psychical powers. Muscular sense, which appears much later in the evolution of the nervous system than do the general or the specialised sensations of sight, hearing, &c., is in morbid states the first to succumb. The infant learns to appreciate the colour of an object long before he has received the visual percep- tion of its form, bulk, and position : he learns to recognise sounds ere the direction whence they proceed establishes the organised series of reflected changes in certain nuclei of the medulla, which enables him to turn the head and localise the source of such sounds. Just as in the infant we trace the sensuous element of mind as preceding in evolution the relational element, so, in dissolutions of the nervous system in the insane, the inverse order is followed, and the relational decline before the sensuous or " primordial " sensations : and, since a relation can best be defined as a state of consciousness " holding together other states of consciousness " (Herbert SjJencer), so individual conscious states become dissociated or unrelated. The loss of such relational element implies a certain degree of intellectual torpor ; but, as we shall have reason to see, the sense of volitional freedom, which is probably an abstract product of the muscular sense, must in like manner decline. Our vigorous perception of the outside world depends largely upon vivid states of consciousness : our realisa- tion of such related states by muscular sense and its derivatives may be compared to a mental g'rasp of the environment : and, in direct proportion to the vigour of such grasp, does our power over the envi- ronment predominate, and the resistance of the latter diminish. In states attended by decline of the muscular or relational element of mind, therefore, external resistance must be ^?ari jmssu intensified, and the apparent energy and freedom of the will restricted. Let us analyse this component of ideation more thoroughly, and we shall find that not only is every perception evolved from a series of com- plex related states of consciousness, but that every concrete perception or idea is attended by certain vivid primaxy states of consciousness and other secondary component impressions which fail to rise into consciousness, or are more or less revivable or i-epresentative. Now such unconscious components of an idea which we take, so to speak, for granted — these lapsed states of consciousness, although they form an integral com- ponent of the perception or ideal representation, are chiefly of mus- SENSE OF ENVIRONMENTAL RESISTANCE. 121 CUlaP OPig"!!!. If, in every conception of a spliere, the roll of the eyeball on its axis were induced, the objective origin of the perception of its form would be evident : but, although such actual muscular movements do not occur, yet the musculatures productive of such movements have their centres innervated by each such perception. Still, such innervation as a direct muscular state or sense of muscular tension and movement fails, in health, to rise into consciousness — an automatic play calls up vivid representation of form and figure without any consciousness of muscular action or strain. As before stated, the frequent repetitions of the muscular act essential to the knowledge of figure, position, &c., have eventually resulted in a lapse of the same muscular action in consciousness. If, however, delaij occur in the production of such relational states, the statical attributes of body will be perceived only after COnsCiOUS effort ; even actual muscular movement and the tension so brought about for the realisation of more vivid conception of form, configur- ation, and bulk, will give that sense of strange effort which metes out to us the resistance of the environment. Do actual muscular move- ments occur in the deranged states with which we are now concerned, and does eonscious effOPt thus arise upon planes which are normally devoid of such feelings 1 The melancholic exhibits to a notable degree the effort which it causes him to think, reflect, or attend to what is said, or to what he reads. It appears to us that the true explanation is due to mental operations being reduced in level so far as to establish conscious effort in lieu of the usual unconscious operations, or lapsed states of consciousness which accompany all intellectual processes. The restless movements of the intellectual eye (in the artist, poet, .. »- n » > •« O a. H- 154 STATKS OF DKPKESSIOX. liclea is the sole subject of thought, and where other impressions are n'oluntarily excluded, are conditions which pre-eminently favour states of induced hypnotism and stupor. It will be of interest to tabulate .here certain prevailing features in the state of stupor and hypnotism, so as to indicate more clearly any physiological or psychological relation- ship existing amongst such groups of symptoms. It would appear from the foregoing Table, tliat mental stupor approxi- onates more closely to the cataleptiform type of hypnotism, rather than 'to the truly cataleptic type. The subject is not, as in the latter state, .accessible through the special or general senses, and suggestion •through these channels fails to elicit responsive movements ; but, on the other Laud, it does appear that the mind is often the subject of • dominant ideas imposed through external agency, and that the cata- leptiform positions which the body and limbs may be made to assume, • can be plausibly explained on the principle of suggestion through the muscular sense. Yet, the patient in these states of stupor is not asleep, nor does ■massage or kneading resolve the rigid muscles which have assumed the cataleptic state. Herein, then, we see how the subject approxi- mates to, and how far he differs from, the hypnotised individual. It must be added, that these clinical forms are by no means grouped together as suggestive of identical pathological states — the patho- genesis may be wholly distinct for each class. The fixation of the limbs in artificially-imposed postures, would .seem to indicate a dominant notion of the necessity for preserving .such a posture, illustrating the obedience induced to external agencies ■whereby the will is subjugated — the subject's attention being reached principally through liis muscular sense. The greater depth of reduction in these states of stupor is attested by the fact, that suggestions by command fail to elicit such trains • of ideas and resulting movements as the hypnotised will present, dlosing the fists and advancing the arms of a hypnotised individual, and placing him in an attitude of defence, will often bring about fighting movements in reality {Gaiy enter); and muscular posturing will elicit the associated mental states of which it is normally the •expression. This, of course, does not occur in cases of genuine stupor, •or the more profound reductions of "acute dementia." We see, again, simple forms of hypnotism in which the sole muscular anomaly consists in an inability to open the eyelids or the mouth : parallel states of mental stupor present themselves in which the same features prevail. H. S. L., aged twenty-six, a married woman, witli two children ; the youngest, .an infant, aged nine weeks, was weaned upon the outbreak of mental symptoms STUPOR AXD HYPNOTISM. 155 six weeks ago. No history of inheiited insanity, neuroses, drink, or other vice. The labour liad been natural in all particulars. On admission, she had a very vacuous expression : " stared round the room in a vacant manner : was wliolly inattentive to what was said, and very rarely spoke. When questioned she usually remained silent, even though the query was repeated many times, and efforts were made to rouse her attention; or she repeated the concluding words of the question, or the words which she heard uttered by a neighbouring patient." She was emaciated and antemic : her pupils widely dilated. The thoracic and abdominal viscera revealed no evidence of disease to phj^sical exploration : but the bowels were torpid, and the tongue was foul and thickly coated. After the operation of a saline aperient, patient was ordered a mixture con- taining 10 grs. of ammouio-citrate of iron, and 5 minims of liquor strychnia; in each dose {bis die). The condition was one of painful stupor : the expression was melancholic and timorous, or one of complete stupor, in which she stood gazing vacantly into space : she was silent, but occasionally would give utterance to monosyllabic replies. Her habits were frequently negligent. She required feeding by hand, but was induced in this way to take abundantlj\ Her hands were cold and somewhat livid : all her movements were very sluggish. About a week later, she became one day suddenly and violently excited — exclaimed aloud — "Cut my throat and let me die." Asked why she wished to die, she replied, "Because I am so shocked." Then she relapsed into her former abstracted, silent state, requiring continuous attention on account of her rest- lessness at night, her dirty habits, and her inattention to food. A month after her admission her bodily condition had considerably improved : she slept better, but was still depressed and in a state of semi stupor : the menstrual functions were in arrest. Slow improvement took place in her bodily health, but ameuorrhcea persisted for some six months, during which period the same treatment, alternated with iron and aloes, was maintained. She remained sluggish in her movements and somewhat depressed in spirits, but would freel^^ converse about her state of health, and was eventually discharged as relieved to the care of her husband. In sucli a case as the foregoing, we see the distinction between simple melancholic depression and the more acute depression often associated with stnporose states : whereas the gentle depi'ession of the former induces apathy, disinclination for exertion, bodily or mental, and brooding silence, the latter may result in one of two conditions — either in the demonstrative expression of these painful states {inelanchoUa agltans) ; or in a spell-bound stupor in which the organism seems, so to speak, petrified by its intensely painful mental state — the melancholy with stupor or the stupidlte of French alienists. Such patients are often completely dumb — their whole aspect that of intense stujDidity : but, if you closely examine their features, you will observe evidence of painful emotion, or intense anxiety, of inex- pressible grief, or perhaps a look of extreme bewilderment or concen- trated astonishment. Numerous patients, who have suffered from melancholy with stupor, 156 STATICS OF DEPRESSION. liave, upon recovery, recorded i'ull details of (heir mental state : they are generally lahouring under some frightful delusion, which utterly sways their consciousness and will : the outside-world may be a blank to them, and their whole mental life is subject to this all-absorbing delusion. Perhaps they imagine they have committed some terrible murderous deed, or that the end of all things is at hand : whatever it be, the attitude, facial expression, and demeanour indicate complete subjection to the engrossing delusion. This concentration of the mind upon one painful idea, which sways like an autocrat the whole organism, has been figuratively alluded to as a "crystallised delusion" — body and mind are crystallised around one morbid idea. Such patients often resist powerfully any attempts at feeding or other interference, and the refusal of food is sometimes most persistent. Then come sudden, fitful gleams of mind at times; a rai)id, hurried utterance, with as sudden a relapse into silence and self-absorption: or a sudden, mad attempt at self-destruction — an impulse, the direct result of the painful mental state. One should ever Ijear in mind this suicidal tendency in stuporose melancholia : it is a constant danger to be feared, and all the more since the apparent stujDor is more that of hodUy activity, and one is apt to forget that the mental state is often one of intensely acute and painful strain, most liable to explosi\'e acts and impulses towards self-inflicted violence : all such suicidal attempts in this disease are frantic and determined in the extreme. The following is an instance of permanent mental enfeeblement resulting from stuporose melancholia of long standing : — H. T., short of stature, slight iu build, and thin, was admitted at the age of twenty-six. She is a married woman, of steady, temperate, industrious habits, and Mas suffering from her first attack of maniacal excitement, the onset of wliich occurred a week ago. No predisposing or exciting cause could be ascertained for her attack. Shortly after admission she became violently excited, and apparently in great terror and suspicion, of all around. After a short remission of this excited stage, she became depressed, apathetic, and torpid in appeai'ance. She would stand or sit in one position for hours, gazing vacantly before her — nor could she in any way be roused from this abstracted state. The catamcnia have not appeared since her admission. Ten weeks after admission, her mental condition had so far improved as to permit of her attending Church service and entertainments ; her bodily health also was considerably better. Shortly after this it is noted : — She is in a state of profound reverie^mental state apparently one of painful tension : fixed as though petrified to the seat or floor, her gaze is one iiidi(;ative of intense self- abstraction and the prevalence of some delusional idea wliich dominates her whole life, and which now frequently issues, without any warning, in sudden, impulxlre, and most frantic attempts at self-destruction, by throwing herself violently on the floor, or dashing her head against the wall. She would then lapse into a cata- leptic state, in which her limbs might be made to assume any position for a STUPOU : PRIMARY DKMENTIA. 157 lengthened period — her aspect trance-like, her expression indicative of intense and painful mental concentration : no vacuity, nor any appearance suggestive of dementia. Five months after admission, the painful mental state had subsided, but there was much stupor, with, Iiovvever, occasional gleams of intelligence — transient recognition of her surroundings. She could not be induced to employ lierself ; Avas found one morning in a fixed attitude in the centre of the laundry wash-house, and on being questioned, said she was "at the Mi. -Ili. 166 STATES OF EXALTATION'. in schemes of philantlii'opy as impracticable in their nature as they are transient in their duration — in extravagant and ludicrous proffers of patronage to science and arts ; or the mood may vary from this to one of supreme ari'ogance, in like manner conjured up by the ex- af cerated self-feeling ; and the subject may announce liimself to be some mighty personage, and assume a defiant, threatening, or savage aspect. We observe that these reductions in maniacal states bring the subject to a more automatic OP instinctive level ; impressions received from without are liable to issue in immediate action — mature deliberation no longer characterises the mental operations, but a state of exaggerated mental reflex; in like manner, the animal passions and instinctive desires, uncovered, as it were, spring into life and show an unregulated activity — impulsive COnduct, therefore, is especially prevalent in states of mental exaltation, and the maniac may be destructive, violent, blindly impetuous, or dangerously homicidal, or react to any of the grosser animal passions and instinctive desires by which he is swayed. Nocturnal Crises. — The insane are peculiarly liable to be afl"ected by those cyclical conditions which are recognised in the healthy in- dividual, and thus the periods of waste and repair, embraced by the clay's labour arid the night's rest, are shown in their case also. The phenomena of nocturnal crises, and the periodic character of their excitement, are very notable and well-recognised facts. The daily routine of work may be passed through in a quiet, orderly manner ; obedient to the "law of the room" and the injunctions of the nurse, tractable and reasonable in conduct, the insane may exhibit no outward indication of mental anomaly until more closely examined ; yet, invariably, as night approaches, they pass the hours in loud, boistei'ous excitement, shouting, singing, incessantly chattering, replying to imagined voices, restlessly wandering about, or beating the dooi's or shutters of their room. During the day, the association with their fellow-patients, application to theii' various duties, and the general discipline of their immediate surroundings may have just sufficed to engender that control over their conduct to which there is now no incentive. The seclusion and quiet of their rooms, the release from all imposed reserve, permit of that wane of object-consciousness wljich is invariably followed by a rise of subject-consciousness. This nocturnal crisis must be regarded as the outcome of those rhythmic changes, which, in a normal state, should issue in sleep. Such reductions, however, are but partial, spasmodic, and limited to psychical processes only — whereas in sleep the whole excito-motor apparatus is more or less deeply involved. In sleep, object-consciousness quickly, even suddenly, succumbs; subject-consciousness goes more NOCTURNAL CRISES : HALLUCINATIONS : ILLUSIONS. 1G7 sloioly, and the more profound depths are not usually reached for an hour, or even longer ; the reflex excitability of all the nei-vous centres (si^inal also) is reduced — the organic functions are lessened. In these cases of nocturnal excitement, however, the effect of this periodic lapse of consciousness is to call up moi-e turmoil at lower levels; all those sub- jective states arising from epi- and ento-peripheral stimuli, or centrally initiated, become the subject-matter of the mental view; all those dis- connected and simultaneously originating ideas which crowd the mind, and which, in healthy waking states, are reduced to serial, orderly thought, now run riot — and beyond this, hallucinations of the special senses prevail. Seclusion tends to foster hallucination ; this fact, so well-recog- nised amongst the criminal community in prison life, is especially true as regards the insane. It is to the existence of hallucinations that we must largely attribute the insomnia and noisy outbursts ; and it is an undoubted fact that many such cases, judiciously selected, are benefited by removal to an associated dormitory, and thus nights previously passed in noisy excitement become intervals of repose and quiet. Such hallucinations, often peculiarly vivid, fascinate the mental vision, and according to their nature call forth corresponding results — the patient may be passionate, wild, threatening, and defiant, abject with terror, shouting in alarm for succour, joyous, exultant, or in boisterous merriment ; every phase of emotional life may present itself as the hallucinations vary, and he enacts his little drama alone. In general paralysis these nocturnal orgies are frequent — noisy rest- lessness, with or without hallucination, accompanying the hiter stages of most cases. In many, the hallucinatory phenomena are recognised by the patient as having no real objective origin, and yeb they will be fostered by the fascination which they entail ; especially is this the case with SGXUal illusions which are frequent in the female sex, and which, it is pro- bable, are very largely entertained and fostered. Cases occur where the nocturnal reductions having been recovered from, the patient is filled with remorse or shame, or accuses certain individuals of criminal conduct, accompanied by threats of retribution and violence ; each night the phenomena recur, attended by erotic excitement, and each returning morning they form the incentive to indignant protest or violent conduct. To many again, the reductions entailing rambling, disconnected thought and garrulity, are in themselves a source of pleasure — easily controlled when the patient is brought into association. The. exhaustion which often follows such nights of excitement and, possibly, the accumulation of decomposition and waste products in the blood, induce in many prolonged sleep throughout the day. , 168 STATES OF EXALTATION. Mania. — The incubative period of mania is but a record, in most cases, of a very gradual declension in mental vigour, not perhaps at all apparent to the friends, but sufficiently evident to the subject himself. Intellectual operations become more laborious than usual, thought is sluggish and tends to wander (attention being fugacious) ; strange and unusual lapses of memory occur — the patient is "absent" and forgetful. All mental operations are not only difficult and tedious, but are followed by weariness and ennui, and a gloom over- spreads the mind, for which there is often no obvious cause. At night the subject is restless, obtains but little sleep, and awakes uni-efreshed, with gloomy forebodings, and a disinclination for all forms of exertion ; in fact, a frittering away of nervous energy has brought him into the first stage of his malady — that of simple melancholic de])ression, to which all the foregoing remarks we have made with respect to simple melancholia apply. This, the first stage of his reductions, is the stadium melancholicum which precedes all forms of mental disease. It is not implied by this that the subject necessarily exhibits such a stage in all cases — although, undoubtedly, many cases cited of sudden onset of excitement without previous warning, are instances of a defective observation on the part of others. The absolutely SUdden onset of maniacal sijmiitoms does occur at times, as in instances of epileptic insanity from sudden and severe discharges ; nor is there any prima facie reason for supposing that such serious and sudden reductions should not occasionally be induced. We must, however, regard the melancholic stadium as the usual feature, and the sudden onset of mania as quite exceptional. This premonitory stage is of most vari- able duration, ranging from days to weeks, or from weeks to months ; it may pass off under favourable circumstances, and again recur as former conditions of life are resumed. Then suddenly, and often quite unexpectedl}', comes a marked transformation, signalising the maniacal reduction. The gloom and despondency appear to be lifted ofi" — reticence and brooding are replaced by sociability and vivacity : a strange light gleams in the eye ; an animated expression replaces the pained and stolid aspect ; the moods are mobile, and an exalted, pleasurable self-feeling pervades the subject. His thoughts, no longer under painful restriction, fiow in unlicensed freedom and in unwonted rapidity, reproducing the symptoms of early alcoholic intoxication. The patient is garrulous — obtrusively so : talks about his own allairs ; is confidential and com- municative to utter strangers ; is egoistic, makes profuse offers to befriend all around him ; is energetic in his movements, incessantly restless, and rapid in his utterances. If we test his individual faculties, we may find his memoiy fairly intact, or partially obscured, MANIACAL REDUCTIONS. 1G9 upon events occurring during Lis maniacal attack ; his attention is commanded with more or less difficulty, according to the intensity of the excitement (depth and extent of reduction), but in all simple forms of mania it is readily brought under control; yet only to lapse the next moment before the tumultuous flow of incoherent thought. If we leave him to his own devices, and listen to his rambling speech, we discover that fragmentary condition of language which attests the want of coherence of ideas — a weakening of that synthetic process which i-enders intelligent and rational thought possible ; a cohesion of ideas still is apparent, but it is that of the trivial associations chiefly, and suggestive movements, utterances, or other impressions presented casually by those near him, will often blend promiscuously with the subject-matter of his thoughts, in the most grotesque and unregulated manner; and, as we have before explained, the serialitij of thought becomes impossible. Every degree of incoherence may thus present itself, from the mildest occasional rambling, to utter incoherence, where speech is qiiite unintelligible, as in the deepest reductions of typho-mania or acute delirious-mania. Tlie patient is reduced to a more automatic level ; his actions are more instinctive than volitional, just as his ideation is more reflex in its arousal and expression. A slave to every passing impression, to every casual thought, to every emotional incitant, his conduct is wholly unpredi- cable, subject to no rule or means of calculation. The maniacai subject is not imaginative, in the proper sense of the term ; at times we find what savours of imaginative vigour, but all such gleams are superficial, transient, and accidental ; the strangest combinations of ideas must necessarily prevail at times, and produce this apparent imaginative turn — and the unexpected scintillations of wit which characterise certain maniacal subjects. Like the child, his imag'ina- tion is feeble and inchoate, and, like the child, too, his flimsy fancy wanders aimlessly, and replaces the truly synthetic, creative opera- tions of the imaginative faculty. Judgment may be perverted upon certain points, but is just as freqiiently unafTected ; in fact, the mental faculties exhibit only such derangement as would occur from the excessive activity of the maniacal process — a transient confusion or partial suspension due to the rapid flow of ideas. By this we do not mean that the subject of mania does not suffer from delusions. Delu- sions are a constant feature in maniacal excitement ; but they are extremely transient, rapidly varying in their nature, and changing with the ever-changing mood ; their superficiality declares itself in their continuous displacement by fresh delusive ideas, for they do not remain permanent, as in the false conceptions of so-called mono- mania. Their origin can be attributed only to the confusion and 170 STATES OF KXALTATIOX. tumult of ideas occurring with the emotional biickground of exaggerated ^vell-being and unnatural egoism ; in fact, on the prevailing tone of the moment seems to depend the character of the false belief entertained. The following case illustrates what we have just said : — G. K. L., aged twenty-one, single, by occui)atiou a dyer. A younj^ man of moderate height, muscular, pale, and ana;mic, with an icteric tinge of skin : a very retreating forehead. Last year he had suffered for some five months from a .similar attack to his present seizure. An uncle of patient's was depressed, but no further clue to heredity was obtainable. He had suffered from convulsions during dentition, but his health had proved satisfactory up to his first attack of mania. He had been somewhat intemperate in his habits. He was in a state of continuous mianiacal excitement, shouting aloud, singing, laughing, and gesticulating frantically. At lirst he did not sleep well, and was noisy through the night; chloral was given with good results. Through the day he was boisterous and unruly, rambling incoherently, and destroying his clothing. He raps the walls with his knuckles — calls out in imperative tones to imaginary individuals with whom he holds converse; but calms down on being spoken to authoritatively, and condescends to give certain information respecting himself in a grandio.se :Style and a pompous voice. In almost the same breath, he declares himself to be the "Prince of Wales — the Prince of Peace — Lord of lords and King ■of kings; his mother is the Duchess of Kent." He is fully aware that he is in the West Riding Asylum, and gives correctly the date of the month and other particulars. He assumes fantastic attitudes, which symbolise his prevailing feelings for the time ; struts about in pompous style, throws himself into an attitude of wrapt attention ; or with lowering brow and clenched teeth apes an aspect of rage ;and defiance ; then, as suddenly, with a lordly wave of the hand and gracious •smile, he addresses those around him by dignified titles, the very next instant to lapse into the clown and turn summersaults about his room. At one moment he announces himself as General Gordon— at another he is Sir Garnet Wolseley, and by tone and gesture assumes a military bearing. These rapidly varj'ing delusional rstates, the one supplanting the other, all indicate the egoistic sentiments of the mind, the overflow of animal spirits, the superabundance of energy finding free and ready expression in incessant movement, pantomime, and speech. From the very •outset, his habits were negligent and degraded, and he \vas early found to be .addicted to masturbation; his gestures, also, and expressions, often indicated a, sexual excitement. When referring to insanity at the adolescent period, we shall find this arrogant and egoistic state of mind to be often associated with habits of masturbation. In the course of six months, this patient's excitement entirely disappeared, and he was able to give a fair account of his feelings, athrmiug that he believed him- :self, throughout the attack, to be some great personage with military fuuctions. The exuberant swell of feeling, and the torrent of disconnected ideas, iUiay express themselves in continuous gaiTulity, in nois}' chattering, in threatening and abusive tones, in laughter, singing, or loud shout- ing, with coi'responding pantomime and almost ceaseless activity ; or •the feeling of unusual freedom and energy may find relief in destruc- tive tendencies — smashing of glass, breaking of furniture, tearing of .clothing, or, perhaps, in violent aggressiveness. BODILY SYMPTOMS IX MAMA. 171 The rapid alternations of disposition are peculiarly striking ; the surging of the emotional wave is followed by an ebb, only to reappear in other forms, so that intervals of calm may find the patient even reticent, despondent, or abjectly miserable, until some trifling cause liglits up the flame afresh. These intervals of depression ai'e in nowise difl^erent from the melancholic states ; in fact, it is but a step from the maniacal to the melancholic stage. At tliis instinctive level, the patient instantly I'eacts to the most trivial excitant, with utter dis- regard to decency ; peripheral irritation may thus induce open and shameless masturbation, or nymphomaniacal states may render the subject of either sex repulsive in the extreme. In like manner — dirty, degraded, negligent habits arise, and depraved appetites spring into life. Sensorial disturbances, in the form of illusions and hallucina- tions, are of very frequent occurrence in mania ; and, at times, it becomes difficult to engage such patients in conversation, so intent are they listening to these phantom voices, or busy shouting aloud their replies ; or, whilst talking to \is, the rapid tu.rn of the head, the hurried gesture, the interposed exclamation, or irrelevant remark, indicate these sensorial phenomena. Bodily Symptoms. — Although, in a certain proportion of cases, especially in alcoholic and senile subjects, and in the maniacal excitement of general paralysis, we note considerable injection of the vessels of the head and neck with a sufi'used aspect of the face — the great majority of maniacal subjects ujidoubtedly exhibit 7narlced pcdlor of the face — the skin generally being also of yellowish tinge, unctuous feel, and foul odour. The pulse is small, somewhat frequent, and the heart's sounds are often mufiled. Griesinger* speaks of the heart's sounds as being indistinct during the paroxysm of excitement, and becoming clear during moments of calm ; during the maniacal paroxysm also we learn from Dr. ClitFord Allbuttf that the optic diSC iS anasmic, becoming, in a few days subsequent to the attack, sufi'used and oKscure. The spasm of the retinal vessels, presumably present in these cases, appears to us of great importance in revealing the true nature of the maniacal process as distinguished from states of mental depression. The tongue is often coated and foul ; the bowels are torpid ; whilst the. appetite, sometimes indifferent, is more frequently exalted and often insatiable. It matters not how well the patient takes his food — incessant activity and continued insomnia are sure to result in loss of body-weight ; in most instances great emaciation prevails — the face * Op. clt. , p. 2SS. t The Ophthalmoscope in Diseases of the Nervous S!/ste7n. Dr. Allbutfs observa- tions are based upon the exanimation of as many as tifty-one cases of mania at the West Riding Asylum. 172 STATES OF EXALTATION. assuming a pinclied appearance, the featui-es are sliarpened, a dark areola surrounds the oycs, the eyeballs are sunken, yet restlessly active and mobile. The reinstatement of a well-nourished frame is a rapid process cet. par. upon cessation of the maniacal symptoms. There is frequent interference with the menstrual function, during the course of mania. Despite the incessant motor agitation and excitement, tlic body temperature is apyrexial and normal. Periodicity. — During the course of mauia.cal excitement, a remark- able periodicity is often noted in the exacerbations and remissions which occur. We have already alluded to the nocturnal crises which are very prevalent, and we may now draw attention to diui-nal varia- tions of excitement and calm occurring upon alternate days, and to which the attention of the nurse is often attracted — an observant nurse will often speak of such a patient's '^ quiet day'''' or his '■'■had day,''' referring to this strange alternation. We quite as frequently find the subject alternate between mental exaltation and depression from day to day, and this ready transition from one form to the other appears to us of the highest importance for a proiier comprehension of the pathogenesis of these mental states. The menstrual molimen is especially prone to arouse in these subjects an exacerbation of excitement, so that a monthly periodicitj" in these maniacal outbursts (with more or less complete remissions intervening) is by no means infrequent. Frequent relapses occur in certain sub- jects, apparently attributable to the vicious habit of masturbation — maniacal reductions and stuporose states being often readily incurred. Acute Delirious Mania. — This, the delire aig'u of French writers, represents the most profound maniacal reductions wjiicli we meet with, just as simple mania connotes the symptoms of the milder reductions. The disease is often most sudden in its onset, and frequently appears to follow upon some moral cause — shock or fright. This, however, is attributable to the special predisjiosition of the subject, evidence of excessive instability being in most of these cases afforded by the history. It differs from ordinary acute mania in the intensity of the process, the extreme reductions in object-consciousness, the absolute oblivion in most cases to all around, and in the rapid course and /requeue y of a fatal termination. It is quite exceptional for a case of acute mania to prove fatal ; in fact, \inless the individual is much debilitated prior to the attack — suffei'ing from some exhausting ailment, such as phthisis — or Avhen it is the sequel of exhausting ha?morrhages, as after parturition, we augur well for our most wildly - excited patients. A case of uncomplicated acute mania usually means a certain and rapid recovery. Not so, however, in acute delirious mania; here the outlook from the first is most ominous, and the gravest prognosis ACUTE DELiniOUS MANIA. 173 miist be given. Tlic tongue is dry and brown; the lips and teeth become covei'cd witli sordes ; food is often most persistently i-cfiised, and violent struggles made upon attempting artificial feeding. The patient is usually quite oblivious to our intentions, and obstinately resists all we do for him. He presents a pitiable spectacle, is unsteady on his feet, totters and sways from sheer muscular debility and exhaus- tion, and trembles in his limbs. His utterances are a broken strain of completely unintelligible jargon — the incoherence being" absolute ; the lips tremble, and speech becomes eventually a mere babble of inarti- culate sounds, interspersed with sobbing respiration. Sleep is entirely abolished, muscular wasting rapidly proceeds, and in a few days he is so prostrate that he lies helplessly on his back, unable even to assume the sitting posture. He now represents the condition often described as typho-mania. The temperature is always raised more or less, sometimes to 102°. The urine may be scanty or suppressed ; it mav pass involuntarily, as do the stools. If intelligently-directed treatment be not early adopted, a rajiidly fatal termination ensues ; and even under the most favourable circumstances, the struggle to bring the patient safely through the storm is an anxious and pi"oIonged one. Cases of Delirious Mania. A. H., a married woman, forty-seven years of age, was admitted after excitement of seven days' duration. She had sufiered from mental derangement some four years ago, attributed by her friends to her son's running away from his liome; was under treatment at an asylum. A week ago the same son again decamped from home, and the mother's distress culminated in the present seizure. No history of insanity, neuroses, drink, or other vice in her ancestry. She was a very emaciated subject, of pallid, sallow, pasty complexion, with dilated malar venules ; there was a strongly marked divergent strabismus. She was suffering from considerable bronchial catarrh; the pulse was 148, regular, but verj"- small and feeble. There was extreme ausemia — the jaws were edentulous, the abdomen sunken, the left hypochondrium rather tender, no splenic enlargement. The genito- urinary system appeared normal. She was restless, excited, trying incessantly to leave her bed, and talked continually — uttering ejaculations such as, "Oh! my God! what shall I do!" She was extremely prostrate, fainted on admission, and nourishment liad to be forcibly administered by means of the stomach-tube. She did not sleep the first night, and next morning was in a condition of acute delirious excitement, rolling her head about in bed, tossing her legs, fumbling with the bedclothes. All her utterances were irrational and completely incoherent. When asked why she came here, she remarked — " To drink ! it makes great dis- tinction in the sex of your business — Follow me — I have been in the feminine of giving drink — Oh ! oh ! — I am receiving gentlemen, not you — Remember the sex — The feminine discretion of the place of my lips." She refused food, "because it is so abominable, it is so obstinate to the effect of my heart." She was not violent, and her tone was elated, not depressed. Essence of beef with milk, eggs, and port wine (6 ozs. daily) were ordered ; 10 grains of the citrate of irou and quinine, bis die. Two days subsequent to admis- 174 STATES OF EXALTATION. sion it is noted : — " Exceedingly prostrate; pulse 120, very feeble; respirations 28. She was noisy and rambling last night, and is quite incoherent this morning — refuses food; bowels torpid; tongue swollen and glazed. Acute delirious condition has so far subsided as to permit her partially to understand what is said, and to replj' coherently ; compulsor}' feeding has still to be resorted to." The foUosving day it is stated that — " Patient was more than usually excited again last night, repeatedly sjirang out of bed, and jumped into other patients' beds. Slept one hour after two ounces of stimulant. .She remained sleepless and wild all niglit, despite a sedative then given. Has taken her food for the first time voluntarily." On the fifth day following her admission, she was fairly calm and rational, having slept some four hours during the night; but there was now noticed a considerable swelling over the left parotid region, so that she could hardly open her mouth; the lobe of the ear was also red and inflamed, the pulse had improved in quality. From this date, the patient improved rapidly in mind, and she was quite con- valescent three days after the appearance of the swelling. The latter had extended over the mastoid region and down the neck, quite obscuring the angle of the jaw ; the integument is of a rather congested redness, thickened, and the swelling hard and tense; the left eye is completely closed by great o?dema of the lids; temperature has fallen from 102' to 100", pulse lOS. There is considerable tumefaction of the left tonsil. Suppuration occurred in the swollen part, and dis- charge took place from the external meatus three days later. No relapse of mental symptoms occurred, and patient left in six weeks from the date of her admission. J. G., a married man, aged forty-nine, by occupation a plumber, had been treated at home for the past month for mental symptoms of a maniacal type ; he had violently assaulted his wife and threatened her life. His mental disturbance was attributed by his friends to excessive drinking ; one point was certain — he had no insane or neurotic heritage, both parents had lived healthily to a good old age, and no other member of the family had been mentally affected or had suffered from nervous disease. His drinking habits had extended over a period of many years ; and evidence of nervous disease or mental flaw had undoubtedly been regarded by his friends as but the result of intemperance. Probably he had been deranged for much longer than was stated ; yet he had w^orked at his regular occupation up to a few weeks of admission. When admitted, he was at once recognised to be the subject of general paralysis ; he had pin-hole pupils (spastic myosis) ; his voice and lips were tremulous ; he had suffered during his journey to the asylum what the Relieviug-officer believed to be "a stroke." But the important feature about his state was the intensity of his maniacal reductions ; he was evidently in a profoundly prostrate condition, and was likely to sink rapidly from acute maniacal delirium. His urine was retained, and had to be withdrawn by a very small catheter, owing to his having a contracted prepuce with extremel3' minute aperture ; surgical measures, however, were at once adopted to relieve this state. He could not stand upon his feet, but immediately " doubled up," and lay for the most part in a helpless, prostrate, dorsal decubitus. Acute visual hallucinations were constantly present ; he made continuous snatches with his hands as though to grasp imaginary objects, and lay muttering utterlj' inco- herent gibberish. There were much tremor of the limbs, and muscular jerkings generallj'. Patient's consciousness was so far obscured that he failed to appreciate the purport of anything said or done for him. Paraldehj'de (mins. xxx. ) was ad- ministered, but wholly failed to induce sleep; strong nourishment of milk with eggs, essence of beef, and concentrated foods, was given him, but with much difficulty, ILLUSTRATIVE CASES OF DELIRIOUS MANIA. 175- owing to his resolute resistance and tcrriiied state of mind. He was pale, pinched, and haggard, and continually restless through the next day, requiring regular catheterism, a normal amount of urine being each time withdrawn. The following night he obtained no sleep, tossing about restlessly, and muttering incessantly ; the- heart's action was becoming excessively enfeebled, his limbs cold, and his lips slightly cyanosed. Every precaution was observed, and small quantities of nourishment- were given frequently to keep his body warm and stimulate the circulation ; bub he died the following day from cardiac failure. Pi. M., aged forty, married, with a family of six children, had suffered previously from slight depression some ten years ago, but recovered in a week, or so. Her attack had began a fortnight prior to admission. She had become restless and forgetful — "put the bread into drawers, and things that should have gone into- drawers she put into the bread-trough;" she got up and walked about restlessly at night. The day prior to her admission, sudden wild excitement ensued ; said she would jump out of the window, cut her throat, and kill her husband. The- family history records no insanity, epilepsy, apoplexy, intemperance, or phthisis ;. the patient had been a steady, temperate woman, and had had a comfortable home — was naturally cheerful and talkative, but given to religious musings. On her arrival at the asylum she was found to be in a state of acute delirious mania ; she was of short stature (5 ft. 2 in.), extremely thin, ill-nourished, and very feeble; her weight was 78 lbs. ; her complexion earthy ; expression maniacal ; the pupils were- dilated, but equal and reacted normally ; her limbs exhibited several recent bruises. The tongue was dry, but not coated or brown ; the thoracic and abdominal organs- appeared normal; the urine, however, contained a trace of albumen, and a large- deposit of pale urates, but no sugar ; it was acid; sp. gr. 1032. She talked inces- santly, was ceaselessly restless, clapping her hands, and rolling about the bed ; she generally kept her eyes shut. Her language was mostly incoherent, rarely having' reference to her surroundings; and she repeated each sentence twice or oftener before uttering another. Her utter incoherence may be illustrated by the following specimen : — " I '11 let you save — The devil — If it 's for your sake — The devil — I 'IL try you once more — His own son — I've known another — They never will — I'm dead long since— I'm lost —They won't let me— The devil— Another song — A poor old woman — The devil — I knew — I should like it — Save a hundred — He 's lost — You're saved — A palace— I 'm dead long since — Her own father— Hundreds — Lord help me- — They 've brought another in — You 've lost him — This is a chariot — It 's my own^ son — I won't answer, because they won't save me — I make such a noise, because you 've saved so many — They 've driven me mad — Why haven't you resisted when I should be in a palace, you have thousands — When I shall be in a palace — I 've saved hundreds, save poor old woman — I 've hundreds — Why didn't you save me when I 'm lost. " She did not strike, nor show hostility beyond resisting. A liberal diet was ordered with 3 ozs. of whisky daily, and 20 grains of chloral at night. The following day it was reported that she had slept after the chloral ; was still incessantly restless, but not so talkative ; clapped her hands, and buried her head in the bedclothes. Each night she was restless until chloral was ordered, when she slept several hours, and awoke far less maniacal, not so talkative ; took food well ; stayed in bed. In nine days after admission she had become obstinate about her food, and had to be fed by the tube ; her consciousness, however, was less obscured, and she recognised nurses and doctors ; her language was less unmeaning, she was less delirious, but still deluded, and at times very incoherent. Thus, she would 17G THE EXPLOSIVE OR FULMIXATINO PSYCHOSES. exclaim: "(Jod is in— They're watching, ami they've broke my Ijrain— I want your wife." Slept well witli chloral. The .secoiul week after adnjis.sion, it is noted — " Patienfs mania has lost its delirious character ; slie now lias the lixed delusion that her food is poisoned ; declares that poi.son lias heen put into it, and that is wliy she refuses it. Asserts that slie has plenty of relatives, but they (the nurses) keep locking them up. Calls out, ' Charlie, Mr. Haggas, &c.' Struggles violently when fed ; is abusive and hostile." At the end of the following week she was much calmer, slept without sedative ; was fed by the spoon, and had lost most of her hostility ; still remained deluded, declaring that her aunt was present. Four days later (twenty-five days after admission) we find her convalescent ; the mania has passed off; she is calm, and occupies herself with sewing; appears to have lost her delusions and hallucinations, and recognises their nature ; is a little unreasonable in wanting to return home at once. Takes food well, ami sleeps without sedative. A few days later she became slightly despondent, expressed the delusion that she Avas confident some injury would be done to her at night, and believed that the patients abused her. This sliglit relapse passed away rapidly ; she made steady and satisfactory progress, and left recovered within two months of her admission. FULMINATING PSYCHOSES. Contents. — Uniform and Partial Denudations— Defective Control— The Neurotic and Criminal Subject— Nature of Impulsive Insanity- Insane Homicidal Impulse— Existence of Aura— Epigastric Aura— Uncovering of the Brute Instincts— Relief of Mental Tension- Illustrative Cases— Suicide in Homicidal Subjects— Etiolo^'y-Effect of Physiological Cycles— Epilepsy— Masked Epilepsy —Alcohol and Impulsive Insanity— The Mimetic Tendency— Suicidal Impulse. The dissolutions of the nervous system which issue in insanity by no means reduce the subject to pre-existent levels of mental life corre- sponding in all respects to former stages of evolution ; the denuda- tion, to use an apt term, is by no means uniform, so that the mental wave recedes along the whole line of its former advance. Such a uniform recession does occur in physiological senescence, and is still more pronounced in the prematui-c decay of senile dementia; but, in most forms of insanity, the denudation is a localised one, or, at all events, begins in many separate areas, and the resulting mental dis- turbance is wholly unlike any of the results of a uniform physiological denudation. The general results also will vary with the intensity and rapidity of the diseased process, and the factors so often insisted upon by Dr. Hughlings-Jackson in his studies of convulsive diseases must also not be neglected in considering the less acute processes of mental disease. It is by these partial denudations that we seek to explain the incongruous results of tlic dLseased process and the overbalance of faculties so characteristic of mental disease. At no stage in the history of insanity, except, perhaps, the senile forms, do we find the man altoffethcr reduced to the mental state of childhood — a 7)?«s or minus quantity ever prevents an exact parallel being drawn, so that PARTIAL DEXUDATIOXS : DEVELOPMENTAL DEFECTS. 177 we readily distinguish such auonialous reductions from tlie results of a xmiform physiological or pathological denudation. Certain features which characterise the mental life of the child spring into obvious prominence in the adult subject of mental disease. The infantile mind is above all things characterised by the lack of control — its instincts, passions, desires, actions, all alike, exhibit in a high degree a want of inhibitory restriction, and the further development through childhood and youth to adolescence and adult age is a recoi'd of the slow progressive superposition of controlling centres. iSTormal mental development is specially characterised by this uniform and progressive establishment of self-control (so to speak) upon higher and still higher levels; but, just as we get in the dissolutions of disease 2J(f''^tial de- nudations — so here, in the progress of mental evolution, we meet with developmental phases of a monstrous chai'acter, presenting, not the normal uniformity of level, but the bizarre irregularities, exaggerated here and defective there, which signalise so frequently the neurotic heritage of the subject. Defective control over certain animal passions and instinctive desires (often associated with an intense staccato restriction over others, amounting to a morbid hyper-sensitiveness) is a peculiar characteristic of such predisposed subjects 3 whilst a still more universal defect of the inhibitory faculty is illustrated by the criminal class of the community. The reductions of mental disease, therefore, will move readily find their parallel in the vaiious anomalous developmental phases of the neurotic subject, or in the extremes of inhibitory defect presented by the criminal, rather than in earlier stages of the healthy and normally-developing brain, and our studies of these developmental types should facilitate our comprehension of the varied reductions of insanity. Much may be said of the ill eflects of injudicious training of the mental faculties of the young ere they have attained an age when such faculties should be called into operation ; and we quite agree with Dr. Cloiiston that different brains attain their power of control at different ages, and we also have seen " many children whose anxious parents had made them morally hypersesthetic at early ages through an ethical forcing-house treatment;" but we opine that all pronounced instances of the kind are neurotic subjects, as in the case of the little boy of four mentioned by him, who " was so sensitive as to right and wrong, that he never ate an apple without first considering the ethics of the question as to whether he should eat it or not" — yet who was, at the age of ten, "the greatest imp I ever saw, and could not be made to see that smashing his mother's watch, or throwing a cat out of the window, or taking what was not his own, were wrong at all."'* What * Op. cit., p. 311. 12 178 THE FULMINATING PSYCHOSES. we specially insist upon here is the fact that the subject presenting such mental distortions is not the product of a vicious educational code so much as the victim of an organised neurotic heredity ; and that we should in these developmental forms learn to recognise features com- mon to them and the reductions of mental disease. So also as regards the true criminal type, the difficulty of drawing any clear line of demarcation between crime and insanity is well recognised ; certain forms of insanity, more especially the so-called "moral insanity," presenting peculiar difficulties to our arriving at a conclusion as to the decree of criminal responsibility involved in the case. Nor need this fact surprise us, since the one presents us with partial developmental arrests at levels to which tlie brain of the insane must frequently become reduced ; what must always be kept in mind is the fact that the one is the outcome of a developmental failure, or vice, the other is a genuine dissolution. All acute forms of insanity are peculiarly characterised by this loss of control. We recognise it in the failure of attention and the inco- herent flow of ideas expressed in rambling speech, in the unrestrained passions, varying moods, incessant movement, gesture, and all the outrageous conduct of the maniac ; but it is not in these universal and complex disturbances of faculties that we find the symptoms of "im- pulsive insanity," as generally understood by that term. There are mental aifections in which the chief, nay, the sole discoverable feature is this failure of inhibition exhibited in ungovernable, sudden imp\ilse, and in entirely unrestrained conduct, whilst the intellectual and emotional spheres remain wholly or only in part xmafiected. It is in this freedom of the affective sphere of mind from implication, and the purely impulsive nature of the act, that we must learn to recognise the genuine impulsive insanity, as understood by older writers. Both Pinel and Esquirol at first doiibted the existence of pure insane im- pulse apart from intellectual flaw or delusion; and many authorities of repiite have since their day considered the doctrine a dangerous as well as a fallacious one ; yet eventually Pinel and Esquirol asserted the existence of this tei-rible malady, and painted its distinctive features in uo uncertain colours. Either there is, or there is not, such a disease as impulsive insanity ; and we must remember that our denial of its existence carries with it the implication that the impulsive conditions which we recognise in a minor degree in healthy physio- logical states, such as the almost irrepressible desire to break a delicate glass globe held in the hand, and many other similar ex- periences which we are all familiar with, cannot arise in an absolutely uncontrollable form as the result of pathological disturbance. It may appear to the student an unnecessary refinement to insist uj^on IMPULSIVE AND MORAL INSANITY: HOMICIDAL IMPULSK. 179 this distinction, but a moment's consideration will assure him that the distinction is one of vital import, not from its scientific bearing only, but more especially from its medico-legal aspects. The lawyer is naturally suspicious of the existence of this form of insanity, and is, very properly, guarded in his acceptance of the doctrine which carries with it such far-reaching results ; he perceives the difficulty of distinguishing between what is and is not controllable — between an insane impulse and the outcome of criminal volition ; and he, moreover, perceives the difficulty — :nay, the impossibility — of recognising its existence, and at the same time reconciling it with the legal criterion of responsibility : and, lastly, he must recognise that the admission of this fact throws on the medical witness the full responsibility of defining what is and what is not of the nature of aii incontrollable impulse. Great as may be the difficulty, in many cases, of clearly distinguishing between the blind incontrollable impulse of the insane, and the rash, impetuous act of the responsible criminal, we must not shrink from the imperative duty of affirming the existence of this form of insanity if our clinical experience justifies the belief, so momentous are the conseqiiences embraced by its acceptance or rejection. In insisting upon such a distinction, we must not forget that it is more or less an arbitrary one — that nature imposes no such absolute line of demarcation between what we elect and what we do not elect to the dignity of morbid types ; that in reality, one, or a few, or many of the mental faculties may be deranged, and in all possible degrees of intensity, and so forms of impulsive insanity may merge into forms characterised by intellectual or emotional disturbance ; and vice versd, intellectual impairment with delusion may merge inta the typical forms of impulsive insanity, exhibiting every shade of transition from the one to the other type. What is of still further import is the fact — ^which clinical experience very strongly emphasizes — that alternations of pure impulsive insanity and forms of intellectual or moral insanity occur in many insane subjects. Nature of the Insane Homicidal Impulse.— In the first place, we should note the causeleSS or motiveleSS nature of the act; the impulses arise wholly apart from any incentive, delusional or other- wise, nor is the victim able, in the great majority of cases, to trace any connection between any pre-existing emotional or intellectual phase, and the onset of the insane impulse. Its irrelevancy to sur- rounding circumstances is in itself so characteristic a feature, that the subject invariably insists strongly ixpon this fact. Suddenly, amidst^ it may be, the pleasures of the family circle, or at the moment of devotional exercise, to the intense horror of the subject, the morbid 180 Tin: FiLMixATiXf; psychoses. feeling suggests itself without any obvious provocation (like a phantom demon), and requires all his efforts to disjjcl it. The horror of the position will often drive the sufferer to a free confession of his state, and to urgent entreaties for protection against such unbidden mysterious impulses, as numerous cases attest ; but instances occur, where the unfortunate subject has struggled for years with his in- firmity, and never revealed his deadly secret until compelled to do so upon the commission of some desperate act.* The motiveless nature of such acts may be called in question, and grave suspicion be ex- pressed, from the admitted difficulty of always assigning a consistent motive even for the acts of the sane; but, just as readily as we may err in imputing no motive to an act when such is not clearly obvious, so, we may even more easily fall into the opposite error of assigning a wrong motive to an insane impulse, influenced by accidental circum- stances in which the sul)ject happens to be placed. The motiveless nature of the morbid impulse is forcibly illustrated by cases in which the subject suffers from such feelings when no one is near, or at the moment of awaking from sleep ; for, as in the case of the suicidal impulse (an impulse which is equally transient), the commission of the fatal act is often averted by the absence of opportune means ; so, in the homicidal impulse, the morbid energy is dissipated and the murderous act averted by the absence of the object. In the second place, we must note the prodromal indications and accompaniments of the insane impulse so far as they are afforded by subjective and objective indications. The subjective accompaniments vary considerably in different cases ; in many, the cerebral discharge which initiates the impulse, is productive of a g'enuine aura such as often precedes the epileptic convulsion. The morbid sensation is often peripherally referred, is of sudden accession, and may rapidly pervade distant parts of the body. Thus in the case of one unfortunate victim {Reg. V. Mountain), we were informed that an intense burning heat suddenly seized him in the epigastrium and was rapidly transferred to the throat, accompanied by a sense of constriction and urgent thirst, upon which the homicidal fury arose, and momentarily bereft him of all control. Others complain of colicky pains, a sense of heat in the abdomen or chest, headache, restlessness, loss of appetite, and lowness of spirits (r«v/^ort), of sensations referrible to the head, "flushings of blood to the brain,'' a sense of constriction or tightening, as of a ligature, round the scalp, or a feeling as if a cold fluid were poured upon the head and along the spine. Dr. Skae, in his Annual Reports for 1866 and 1868, describes a well-marked aura as preceding homicidal * See, on this point, Drs. Buckwill and Take, op. cit., p. 2GS. i Med. Jurisprudence, vol, 11., p. 553. THE EPirJASTRIC AURA AND HOMICIDAL IMPULSE. 181 impulse. In certain other cases a definite hallucination of the special senses may be tlie immediate forerunner of the homicidal impulse. The connection of these phenomena with epileptic discharges is often apparent in such subjects, and the following case, quoted by Maudsley from Mai'c, seems to indicate the repression of the impulse by the arresting of the aura : — "Mr. Pv., a distinguished chemist and poet, of a naturally mild and sociable disposition, placed himself under restraint in one of the numons cle santii of the Faubourg St. Antoine. Tormented with an homicidal impulse, he prostrated liimself at the foot of the altar, and implored the divine assistance to deliver him from the atrocious propensity, of the cause of which he could give no account. When he felt himself likely to yield to the violence of it, he hastened to the head of the establishment, and requested him to tie his thumbs together with a ribbon. This slight ligature was sufficient to calm the unhappy P^., who subsequeotly endeavoured to kill one of his friends, and finally perished in a fit of maniacal fury." The epigastric aura, followed by spasm of the throat and intense thirst, alluded to above in one case, has been noted in other subjects ; * it is of interest as indicating a primary 'disturbance of the vagus, and as giving rise to the most intense and massive feelings of organic life, which in the brute arouse the most ferocious instincts. Thus, Professor Bain says— " They (the feelings of inanition and thirst) are far more intense than mere nervous depression, and, therefore, stimulate a more vehement expression and a more energetic activity. Even when not rousing u]> the terror of death, they excite lively and furious passions. The unsophisticated brute is the best instance of their power." And again, "There is something intensely kindling in the ay)petite of carnivora for food, which rises to fury when the flesh is scented out and begins to be tasted, "f The association of these organic sensations with the springing into life of the brute propensities in the human subject is, we take it, a suggestive fact. Certain objective indications of the morbid process are also occasionally afforded, chiefly of vaso-motor origin — intense pallor may precede the act, or the face may become suffused, and a copious sweat break out over the body as the impulse is resisted and subsides ; the heart usually shows excited action, and the arteries of the neck and temples pulsate violently. The intensity of the morbid process is further indicated in the utter loss of self-control. " Everything passes out of mind," said one such unfortunate subject to us, " except the one thing I wish to accomplish — I can think of nothing but the desire to kill some one." The one burning idea prevails to the exclusion of all others at the height of the * See a case by Piuel quoted in Dr. Maudsley's ResponmhUittj in Mental Disease, p. 141. t The Senses and the Intellect, Alex. Bain, pp. 1*26 and '2o3. 182 THE FULMINATING PSYCHOSES. attack, and is (in all respects, as Maudsley has insisted) " a convulsive idea springing from a morbid condition of nerve-element, and com- parable with a convulsive movement." * In other respects the condition shows its kinship to the convulsive neuroses, viz., in the immediate relief atTorded by the accomplishment of the act, or the dissipation of the morbid energy in otlicr directions ; like all transient nervous discharges from the cortex, the associated mental tension is instantly relieved thereby. Yet, it must not be forgotten, that the impulse is in many instances successfully resisted ; and that the early history of many cases of homicidal mania is one of a long- continued and secret .struggle of the victim against the morbid feelings which create in his mind a dread and a horror indescribable. Fully recognising the atrocious nature of the crime to which he seems impelled, he is in constant dread lest in some weak moment his power of resistance, already enslaved, should wholly succumb in the frenzy of the seizure. Instances have occurred where this struggle was carried on for years — thus in the case of Reg. v. Mountain the prisoner admitted the existence of such insane impulses for a period of ten years prior to the murder, the exceptional atrocity of which, with other related circumstances, make it worthy of note here. The prisoner was a young man, aged thirty-two years, of undoubted neurotic heritage ; his mother, maternal grandmother, and maternal aunt had been insane ; his maternal uncle had cut his throat, and his brother was of feeble intellect. The maternal aunt, who was under our observation for years, was the .subject of suicidal impulses, had tried on several occasions to strangle, to hang, or to drown herself, as the result of imperative feelings distinctly arising from the group of organic sensations. The unfortunate subject of such ancestral frailty liad always been timid and imnaturally suspicious ; but no decided delusional })hase liad been observed at any time until a few months preceding the murder, and then only as the immediate outcome of drink. Ten years prior to the event in question, he first became subject to the peculiar sensations which we have already referred to, and which were invariably the forerunner of intense homicidal impulses ; they almost invariably occurred at times when he was alone, and he would pace wildly up and down his room to "work the feeling down;" and often he has rushed from the house where his aged mother and servant lived when he felt the feeling arising lest he should not be able to resist the murderous impulse. He had struggled against these feelings, and " prayed to be delivered from them" in agony of mind without success for j'ears. They were increasing in intensity, and to arid to his misery his natural nervousness and suspicion were also more prominent. His mother's attack of insanity some years previously, and his aunt's state (when he had visited at the asylum), constantly preyed upon his mind, and engendered the feeling that he would become insane. He had kept his dangerous feelings and propensities a profound secret, so that his closest acquaintances had failed to recognise any indications of his real condition until, latterly, when he gave way to drinking ; and then it was observed that very small quantities of alcohol * Op. cit., p. 156. CASE OF REfJ. r. MOUNTAIN. 183 produced grave mental disturbance, characterised by persistent delusions of persecution and errors of identity. On two occasions he suffered from genuine attacks of maniacal excitement, but of transient duration only. As a natural result of tlicsc intemperate habits, his former symptoms became further intensified ; yet, up to the evening of the murder (except when under the influence of drink), no intellectual disturbance was recognised by his friends. On this evening, after taking stimulants freely, he locked his mother and the servant girl in a room to- gether, and in the most brutal and atrocious manner attacked his mother, kicking her to death, and causing the most horrible mutilation of the body, keeping the girl at arm's length by a loaded pistol. For five hours this brutal violence was continued, he meanwhile affording abundant evidence of a deluded state of mind by his conduct and utterances. His subsequent condition upon arrest was con- sistent with an attack of mania-a-potu. Subsequent to his recovery from the alcoholic delirium, he had experienced a return of homicidal impulses in prison, a man wlio slept in the same room having nearly been a victim to his murderous frenzy. The prisoner was considered irresponsible at the time of the murder on the ground of insanity, and was ordered to be retained during Her Majesty's pleasure. The case is of interest in its medical aspects as reproducing some of the most important features of homicidal impulse in the insane. There is the fact of the peculiarly hereditary nature of impulsive insanity; there is the strange association of deranged organic sensations with the convulsive conduct ; there is the emphatic proof of the fatal effects of alcoholic indulgence in such cases, and the ready passage into delusional forms of insanity ; and, lastly, there is the secrecy so often maintained by the subjects of this form of malady, lasting over a period of ten years. A notable instance is recorded by Dr. Tuke * of a young- man, aged twenty-five years, of gentlemanly appearance : — "After giving his address, and declaring himself to be a schoolmaster in a certain well-known college, he begged that the commissary of police would take him in charge, with a view to his confinement in the asylum of St. Ann. He then explained that he was not mad in every respect ; on the contrary, he possessed the full use of his mind, only whilst sleeping amongst the pupils confided to his charge he was seized with the most destructive inclinations. Night after night, in an agony of fear, he had struggled with himself, and it was with the greatest difficulty that, so far, he had succeeded in restraining his intense desire to strangle one or two of the little boys. Now all his energies were exhausted; he felt that this unknown power would ultimately triumph over him, and, rather than commit the crime, he placed himself in the hands of the police. At this moment a boy accused of theft was brought into the room. The eyes of the schoolmaster were immediately lit with a strange light, and, had it not been for the timely assistance of a brawny policeman, the boy would have been throttled before the verj' eyes of justice." We have little doubt that many instances of mysterious suicides are to be accounted for by the prevalence of homicidal feelings — the victim tortured by the terrible secret seeks relief in self destruction rather * Psijchological Medicine, 1S74, p. 26S. ISl THE FULMIXATIXG PSYCHOSES. than reveal his condition, or subject those near and dear to him to any further risk. The condition of the homicidal subject immediately subsequent to the act is characteristic — it is usuallv one of complete relief from anxiety, and utter indifference to the enormity of his crime; fi^quently his first act is to coolly confess his crime and give himself up to justice. Exceptions, however, occur where the subject of insane impulse endeavours to conceal his crime like the responsible criminal. Thus, at the West Riding Asylum, a subject of such impulses secured an iron bar and struck a harmless imbecile patient on the head as he lay asleep within a few yards, fracturing his skull seriously, and then deliberately concealed the instrument in some shrubbery near at hand, and coolly took up the paper he had been reading a moment before, apparently free from the least concern. Up to the present day, four years since his homicidal act, he denies positively any knowledge of the affair, and he exhibited the utmost indifference on being questioned immediately subsequent to his violence. In fact, his nonchalance at the time, and his subsequent behaviour, might almost have been rec^arded as consistent with the impulsive automatic act of an epileptic, were it not that the subsequent history of the case revealed clearly the existence of insane impulses preceded by a definite aura, but not of genuine epileptic paroxysms : and, moreover, proved him to be pos- sessed of considerable insane cunning. In the genuine impulsive forms of insanity, consciousness is never so fer impaired as to issue in forgetfulness of the details of the homicidal act. "VThen such is the case — when any marked obscuration of memory is apparent — we may presnme the impulse to have been of epileptic origin, or to be the outcome of alcoholic delirium. Etiology. — In all these cases of pure impulsive insanity there is, we believe, a weU-established basis of a neurotic heritage, and if the individual's history is scrutinised with sufficient care, we are assured that evidence of niental instability will be discoverable throughout his life. It is, however, at the critical epochs of life that this predisposi- tion especially tends to assert itself — periods at which grave nutritional disturbances are prone to arise in the central nervous system, inducing the peculiarly convulsive outflow of nervous energy which characterises these epochs, even in normal physiological operations. Puberty and the climacteric are prone to the convulsive type of the neuroses, and the same prevails at the puerj^eral period during lactation, and associ- ated with the various forms of meTUtrual derangenx^rd. Several instances are on record where the revolutionary epoch of puberty has aroused the homicidal feelings in youth, as in the case of Margaret Messenwer, aged thirteen years, who killed her brother and drowned ETIOLOGY OF IMPULSIVE IXSAXITY. 185- another child, six months old, "without any discoverable motive. Young girls suffering from temporary menstrual derangement are subject, as is well-known, to various perverted instincts and appetites^ and the hysterical outbursts are often associated with an almost irresistible tendency to destructiveness, and not very rarely with a homicidal feeling (see case of Reg. v. Brixey).* We have known, several instances where the subject has expressed her dread of sleep- ing in the same room with other members of the family, and of being left alone with her younger sisters, lest she should not be able to restr-ain the impulse felt to injure them. The climacteric in woman is a period during which mental dis- turbances are frequently associated with suicidal impulse; but, as we shall see later on, the impulse is usually the outcome of intellectual derangement and grave delusional perversions. Yet, homicide and suicide may occur at this epoch as the result of a purely impulsive condition, and more particularly in such cases as have developed intem- perate habits. The puerperal period, as is well-known, renders neurotic subjects liable to insane impulse, and, although usually a symptom of the general disturbance of puerperal mania, the simple instinctive form may alone prevail. We recognise a similar condition in animals, which, in the deranged states following parturition, will kill and even devour their young. Epilepsy is a frequent source of these depraved and resistless feelings. Homicidal impulses may prevail in one of four conditions in the epileptic subject, viz. : — (a.) In epileptic furor or mania, associated with hallucination or delusion ; {h.) In the so-called '"'epilepsia larvata" (Jforel), the "masked epilepsy " of Esquirol ; (c.) In the dreamy state of epilepsy ; or, lastly, (d.) As a simple impulsive derangement during the inter-paroxysmal period. It is the latter alone which can be regarded as genuine Impulsive- Insanitv : the three former conditions are attended by such general mental derangement as to exclude them from the category of pure affective forms of insanity. It will be more convenient, however, to- refer briefly to such forms at the present juncture, and to deal with them in further detail in our remarks upon insanity associated with Epilepsy. In the reductions of Epileptic Mania, or the post-par- oxysmal excitement, of which we see so much in our asylums, the homicidal impulse springs into life almost invariably as the result of delusion. The murderous act is traced to a pre-existing delu- sioual state, with which it has often a direct connection (see case of * Quoted in T.iylor"s Medical Jurisprudence, vol. ii., p. 564. IS6 THE FULMINATING PSYCHOSES. Reg. V. Taylor, see Alcoholic Insaniti/) ; or, again, hallucination of sight or hearing may prompt the act — a voice may be heard commanding the epileptic subject to kill, and the impulse arises in resistless force (case •of £. C, see Epileptic I)isanity) — or a visual hallucination, in the form of some object of terror, may call forth these same results. The epileptic furor may be of some considerable duration, and the subject remain in a dangerously homicidal state during its continuance ; but subsequent to the paroxysm, the subject will remain either greatly bewildered (retaining only very partially some fragmentary recol- lections of the attack), or, still more commonly, be wholly oblivious of the circumstances and of the conduct which he has just displayed. In the masked epilepsy of older writers, we find that a fit of iomicidal mania may replace the convulsive seizure (a convulsive idea, as Maudsley would say, takes possession of the mind), and, without any of the usual epileptic phenomena preceding, a sudden irresistible murdei-ous impulse (probably prompted by delusion or hallucination) occurs ; but here, again, the subject fails to recall any conception of his actions. So, likewise, in the dreamy state of epileptics, approaching the somnambulistic condition, homicidal acts have been committed in a semi-unconscious automatic state of mind. It is astonishing how complicated may be the acts performed in these states by the epileptic automaton. A better illustration could not be found than that quoted by Dr. Gowers, where a carman in this state of automatism, after an epileptic seizure, " drove through the most crowded parts of London, uithout any object, but also without any accident." * Genuine impulsive insanity, apart from grave mental derangement, however, is also occasionally seen in epileptic insanity; in the intervals between the convulsive seizures, certain patients are subject to frequent insane impulses to murder f without any motive or malice) any one '»vith whom they are brought in contact. These conditions usually alternate with delusional states, and with the maniacal outbursts suc- ceeding the epileptic attack — they are the most anxious cases to treat, and the most difficult patients to control Such subjects are peculiarly susceptible to the efi"ects of small quantities of alcohol, which may induce, even in very trivial amount, the most furious outbreak of mania, or the impulsive homicidal state alluded to. Alcoholic excess may induce the impulsive form of insanity in certain predisposed neurotic individuals ; a condition of alcoholic delirium of extremely short duration (mania transitoria) f, in which a mad impulse to murder prevails, may thus be induced by what is * Diseases of tlie Xervous System, vol. ii., p. G91. -tMaadsley is undoubtedly correct in asserting that many cases of mania transitoria are really instances of "mental epilepsy." — Op. cit., p. 230. THE SUICIDAL IMPULSE. 187 ■usuaHy considered by no means immoderate drinking. The symptoms, however, embrace much mental confusion, and the suljject remains, after the attack is over, in a state very similar to an epileptic after an attack of petit mal.* Amongst other ^etiological factors we must not fail to note the vicious agency of imitation which was originally emphasised by Esquii'ol, as one of the causes of this affection. Undoubtedly, the morbid excitement engendered by the perusal of records of criminal horrors, by the publicity afforded in our Assize Courts to the revolting details of crime, and, up to within the last few years, the demoralising effect of public executions, have greatly fostered the development of these states of mental disease. If there is one fact in mental physiology more established than others, it is that the continuous direction of the mind to the sensual and purely animal passions of our nature tends to intensify their potency — to render their channels of operation more pervious, and so to withdraw them from the inhibitory control to which they should ever be subject. The brutal instincts are still less protected in those persons of weak mind, who, not endowed with an average amount of controlling power, require but the intensification of such instinctive states to lead to explosive outbursts ; in such cases mental strain, anxiety, ill-health, and other exhausting conditions, and especially alcoholic and sexual intemperance, may readily lead to attacks of homicidal mania at periods when the public mind is horrified by some stai'tling crime. The Suicidal Impulse. — What ^-e have said respecting the homicidal impulse applies in most particulai's to the self-destructive propensity; it also arises in subjects who exhibit no intellectual disturbance, and in whom the moral sense is intact, in so fai', that they, recognising the horx-or of their situation, and the unnatural chax'acter of the morbid promptings, revolt against the perpetration * On the subject of mania transitoria Maixdsley remarks : — "Although epilepsy, masked or overt, will, I think, be found to be at the bottom of most cases of mania transitoria, it must be admitted that there ai'e some cases in which there is no evidence of epilepsy in any of its forms to be found ; but it may well be doubted Avhether a distinct insane neurosis is not iilways present in these cases. With sucli a constitutional predisposition, a genuine attack of acute insanit}', lasting for a few hours only, or for a few days, may break out on the occasion of a suitable exciting cause, and during the paroxysm homicidal or other violence may be j)erpetrated. After childbirth it sometimes happens that a woman is seized with a paroxysm of acute mania of short duration, during which perhaps she kills her child without knowing what she is doing. The efiect of alcoholic intemperance upon a person strongly predisposed to insanity, or upon one whom a former attack has left predisposed to a second, is sometimes a short but acute mania of violent character with vivid hallucinations and destructive tendencies ; and a like efl'ect may be produced by powerful moral causes, sexual excitement, and other recognised causes of insanity." (Refpojisibtlilij hi Mental Disease, p. 247.) 188 STATES OF MKNTAI, i:\FEEBLEMENT. of the act. Like tlic homicide, tliey may implore protection, and voluntarily resign themselves to asylum supervision, dreading lest they may be overmastered hy the suicidal impulse. So likewise do we find the impulse of convulsive nature sudden in its onset, transient in its course, and followed by immediate and complete relief; its analogy to the epileptic state being still further indicated by the occurrence of an aura, usually an aural hallucination. The condition to which we allude is, of course, not the ordinarj"- suicidal tendency of simple melancholia, where the morbid depression pi'ecedes and ex- ])lains the negative suicidal state ; but the condition Avhei'e, from the first, the suicidal propensity presents itself, any depression being secondary, and induced by the patient's helpless condition. The climacteric epoch not imfrequently develops this impulsive form of insanit}^ just as it does homicidal states ; and a good illustrative case is detailed further on iu our study of the insanity prevailing at this period of life (see case of S. II.) Winslow recoi-ds the statement of one patient as follows : — ■" For six months I have never had the idea of suicide, night or day, out of my mind. Wherever I go, an unseen demon pursues me, impelling me to self-destruction. My wife, friends, and children observe my listlessness and jierceive my des})on- dency, but they know nothing of the Avorm that is gnawing within." * STATES OF MENTAL ENFEEBLEMENT. Contents. — Mental Deprivation in Contradistinction to Developmental Arrest — Persistent Enfeeljlement— Chronic Eesidiie of Asylnni Coinmnuities — Recover- ability of Maniacal and j\lelancholic Forms— Consecutive Dementia— Delusional Insanity— Genesis of Monomaniacal States — Environmental Eesistance— Trans- formation Completed— Mystic Symbolism— Illustrative Cases of Delusional Insanitj'— Monomania of Pride (.1.0., E.T.) — Religious Monomania (J.B.) — Monomania of Persecution (E.C). Amongst states of mental enfeeblement are comprised numerous ■widely different groups, which constitute the large bulk of our asylum communities, and in which the mental ailment difi'ers in its mode of origin, essential nature, and the characteristic features presented. The term mental " enfeeblement " is jierhaps the least objectionable which we may employ for the varioi;s groups comprised under this class of mental ailments, but there is a sense in which its application is faulty. The term should, we think, include states of mental deprivation only— fe., states of acquired defect, whilst comjeuital and developmental arrest would be more appropri- ately considered under a distinct categor}'. Idiocy and imbecility would, therefore, be excluded from this class, which would, however, compi'ise the various forms of monomania, of chronic mania, and dementia. * Obscure Diseases of the Brain, p. 265. TRANSIENT AND PERSISTENT ENFEEBLEMENT. 189 All instances of mental reduction are, of course, states of mental enfeeblement, and, therefore, in one sense, all cases of acute insanity are alike cases of mental enfeeblement, as is the stage of stupor fol- lowing acute insanity, or an epileptic outburst. We do not, however, extend to this term so wide a significance ; we arbitrarily exclude states of transient mental deprivation, and limit its connotation to conditions of persistent enfeeblement, whetlier primary or con- secutive in their origin. In fact, we comprise under it the incurable terminations of acute insanity— the chronic insane residue which remains, as wrecks remain after the storm ; also, such cases of per- manent enfeeblement, as are not preceded by acute mental symptoms, e.g., the "primary dementia" of organic disease of the brain — from morbid growth, apoplectic foci, and cerebral ramollissement — and the Number of Cases. Percentage. Form of Mental Disease. Recovered. Died. Relieved. Chronic Remainder. Per cent. Per cent. Per cent. Per cent. 134 Mania — Simple, .... 61 11-9 11 16 201 Acute, . 65-5 13-4 8-4 11-9 66 Hysteric, 75-7 3-0 9 12 46 Chronic, 13 36-9 50-0 237 Delusional, 37-0 130 lS-5 31-0 85 Recurrent, 57-6 8-2 14-0 20 46 Puerperal, 71-7 15-2 6-5 6-5 141 Melancholia — Simple, 61-7 14-0 13-4 10-6 51 Acute, 54-9 23-5 5-S 15-6 299 Delusional, . 55'5 14-0 14-3 160 16 Recurrent, . 50 12-5 12-0 25-0 11 With Stupor, 63-6 9-0 27-2 68 Dementia — Senile, 60-0 26-4 13.-0 28 With Excitement, . 39-0 35-7 10-7 14-2 39 ,, Depression, 41-0 23 28-0 7-6 33 Organic, . 9-0 54-0 30-0 6 121 Epilepsy, 11 -o 20-4 23 38-8 74 General Paralysis, 72-9 21-6 5-4 82 Imbecility, ..... 17 51-3 30-7 13 Idiocy, 38 4 15-3 45-9 IS Chronic Cerebral Atrophy, . 77"7 22 1809 190 STATES OF MKNTAL KNFKKDLKMENT. dementia of senile atrophy. Under tlie respective headings of epileptic, apoplectic or paralytic, senile, and alcoholic insanities, we shall allude to the features presented by the mental decadence accompanying such affections; but we must here devote our attention to a consideration of consecutive dementia as a sequel to the acute forms of mental disease in general. A glance at the preceding Table, which affords us the results of treatment in the case of 1,809 female patients admitted into the "West Riding Asylum, Avill serve to indicate whence our chronic insane inmates are chiefly dei'ived. In the Table it will be observed that a large proportion of maniacal and melancholic patients are discharged "relieved," and this class comprises a number of iKrmanenthj enfeebled minds, in which the acute symptoms having subsided, the subjects are safely disposed of under the care and supervision of their friends ; hence the chronic remainder in our asylums do not represent by a long way the COn- secutive dementia of acute insanity. Bearing this fact in mind, one may still advantageously compare the total number of chronic cases remaining after maniacal and melancholic seizures respectively — it is then found that out of 815 instances of all the forms of mania, a percentage of 20"6 remain permanently crippled in mind; and that out of a total of 518 instances of melancholia, a percentage of 15'0 remain as a chronic residue. This is what we might anticipate from our knowledge of the deeper reductions pertaining to the maniacal forms, and confirmatory of it we note a progressively-increased tendency to chronic enfeeblemcnt, result- ing in the acute, delusional, and recurrent forms, as compared with the simple form of melancholia {vide Table). If we summarise results for all forms of mania and melancholia, we obtain the following : — Percentage Chronic Recovered. Died. "Relieved."' Remainder. Maniacal forms. . 53-2 11-9 14-0 20-6 Melancholic „ . 57-i U-8 12-9 15-0 The more unfavourable chai-acter of mania depends upon the incur- ability of its delusional forms ; the simple and acute maniacal seizures, if they do not tend to the delusional form, are usually of high recover- ability, as indicated by our table ; certain forms especially so, as the puerperal and hysterical. Were it not for the large proportion of suclb acute cases, the unfavourable nature of maniacal, as compared ■with the melancholic forms of insanity, would be strikingly obvious. Consecutive Dementia. — Ordinary consecutive dementia, how- ever, presents us with a progressively advancing enfeeblemcnt of mind, COXSECUTIVE DEMENTIA. 191 a complete change in tlie disposition and character of the patient, a lack of interest in former pursuits and associations, an incapacity for any form of mental effort, a tendency to an automatic routine in the- habits of life, and a notable blunting of the emotions. Maniacal or melancholic states occasionally return, and betray, in a marked degree, the incoherence of thought and the enfeeblement of the mental faculties ; but, subsequent to such attacks, the mental weakness continues to advance, until it issues in complete fatuity. Yet we find great diver- sity in the progress of individual cases : in many, the advent of such a mental void, as we have just alluded to, only comes after a very pro- longed life, during which they show no mental perturbations, but an apathy and indifferentism, a lack of initiative which renders super- vision necessary to provide them with the wants of life ; others take a more genial interest in their surroundings, but yet are childish in' their actions, are docile and easily led, but subject to great instability if annoyed ; in others, again, the brutalising of their nature is more' apparent — degraded habits come to the front, vicious tendencies are apparent, but conduct is wholly devoid of all intelligent direction or rational initiative. Many of these chronic dements are utterly lazy, disinclined for any form of exertion, and cannot be induced to employ themselves at the simplest manual labour. They will stand about foi' hours, slovenly and disorderly in attire, fumbling with their fingers,, disarranging or tearing their clothing, and uttering continuously a string of incoherent gibberish. Some of these subjects may have no- delusion apparent, as a rule; but yet, at times, a mild maniacal attack may reveal some delirious conception, which again fades away as the excitement abates. The expressionless features betray the lifelessness. of mind ; or a fixed, hideous grimace, or unmeaning aspects, its- unreason. It would not serve our purpose here to attempt any classification of such numerous and incongruous types as ai'e presented by the cases of chronic enfeeblement amongst the insane ; they can only be studied by prolonged clinical observation in the wards of an asylum.. Griesinger has, however, distinguished between the class of excitable- and that of apathetic dements, and to his vivid delineation of these- types we would direct the student's attention.* They represent but different depths of reduction, the former being allied to mania — in fact, retaining a certain degree of its mobility as relics of the maniacal condition ; the latter being the more profound reduction, in which sluggishness of mind verges upon absolute fatuity. We shall revert to the morbid evolution of these phases of dementia in our section on the morbid histology of the brain. * Op. cit., pp. 340-315. 192 STATICS OF MENTAL EN'FEEBLEMENT. The transition from acute insanity is by no means always a direct transition to these forms of mental enfeeblement — an intermediate stage of peculiar chronicity often precedes the more profound dementia which we have just considered. To these forms of monomania or delusional insanity proper, we must now revert. Delusional Insanity. — We have spoken of maniacal states as jjresrntiiig us with reductions to a stage lower than that attained by melancholic states ; and we now come to a group of cases comprising symptoms wholly distinct from those presented to us by the foregoing. "This third group lies, so to speak, in the order of dissolutions, on the border-land between the two former. In the first (mania), we noted the general exaltation and the free translation into action ; in the second (melancholia), we observed the rise of painful feeling associated with general depression and restricted activity ; in the third we find, as ■often as not, an emotional indifierentism allied with false beliefs of an exalted stamp — a calm, which is, however, ever ready to pass into states of transient excitement, on the one hand, or into gloom and 'despondency on the other. This third group comprises the so-called states of monomania. ^Monomania as a morbid entity must be re- garded as a state evolved out of melancholic and maniacal perversions — as a special derivative of these conditions ; never as a primary form of disease, but as itself one of the terminations in chronic insanity. It can be studied to the gx'eatest advantage in association with the pre- ceding forms ; nor is it possible correctly to appreciate its significance, if we have not previously analysed the forms of melancholic and maniacal perversions. Genesis of Monomaniacal States.— We have seen that a special feature of maniacal states is the hurry and tumult of the process, and the prevalence of delusive conceptions of a fleeting nature. It is this very I'apidity of the cerebral process which accounts for the transient nature of such falsifications ; time is required, a certain persistence of impression, or a frequent repetition of the same impression, to form any indelible stamp upon the memory. As stated, one delusion c-hases another out of the mind in the tumultuous superficial hurry of the maniacal state. The welling-up of feeling, which we have spoken of as the rise in subject-consciousness, finds easy vent in mania in rapid ideation, incessant garrulity, and active movement ; yet all maniacs obtain at times full relief in active ideation alone — for the maniacal subject need not be at all times restless, nor need he be garrulous — yet his expression will indicate to us the varying moods and rapid process of incoherent thought goijig on within. We speak occasionally, but incorrectly, of such cases as instances of siippressed mania — there is no mental tension, but complete relief in the active MONOMANIACAL PERVERSIONS. 193 ideational process. Monomauiacal states are essentially those where the rise in sul)ject-consciousness does not tend to r.^cape in outward action, but rather to find relief in forms of perverted ideation ; and hei'ein lies the distinction between the two forms — in monomania there is no longer emotional exaltation and tumult, but perfect calm ; the false conceptions arising at these levels of reduction have a far more serious import, since the existing conditions favour their fixity. They rise more definitely and more for'cibly into consciousness. The turbulence of the intellectual life in mania and the heightened mental reflex, we have associated with spasm of the cerebral arterioles, and the resultant quickened circulation in the cerebral cortex ; in monomaniacal states, a quiescence of the circulatory current appears coeval with the decline of such exalted cerebral reflex, and we approach the stage of melancholic reductions except for the absence of vaso- motor paresis and the stagnant circulation of the latter states ; hence, in lieu of a feeling of restricted translation from emotional to intellectual realms, the feeling of freedom and power still predominates. Such freedom, as before stated, finds its output in phases of aberrant ideation. And yet there are times when the monomaniac realises somewhat painfully a sense of environmental resistance — a sense which must be generated whenever he attempts to put his impossible schemes into practical operation, or tries to convince others of the logicity of his absurd speculations and belief. Especially, however, does this sense of resistance make its appearance in cases of fully developed mono- mania, where languor of circulation, induced by cardiac enfeeblement and exhausting aff'ections, such as phthisis, reproduces the melancholic phase afresh. This sense of outward hostility — the irritation and excitement thereby engendered — is a more prominent feature in the earlier stage of monomania ; and in most cases it is found, in some one or other form, at this period of the disease, as the natural outcome of the antagonism which the subject must recognise as existing between his beliefs and "the circumstances around him. It is a feature which indicates the incomplete severance of this afiection from the purely maniacal form. As the mania subsides and calm succeeds — as the egoistic feelings predominate more and more, and obtain more complete ascendancy over the intellectual life, the transformation slowly, but elaborately, undergone by the personality is in itself a sufficient answer to all outward antagonism ; the all-sufliciency of the ne-w ego, with its wondrous powers, capabilities, and motives for action, dissipates all apparent opposition, or ignores its existence. It is thus that we find our patients at first, in the early transition- period between mania and monomania, intolerant of contradiction — no 13 194 STATES OF MENTAL ENFEEBLEMENT. opposition offered to their delusive utterances fails to arouse passionate outbursts, violent abuse, and even vindictive conduct ; he who risks this often wins for himself the open and long-continued hostility of the patient, at no time a justifiable or politic procedure. At this stage, the deluded subject is loudly assertive of his beliefs, and actively aggressive in his endeavours to carry them into practical operation ; in interminable writings, in incessant declaration he will assert his newly-acquired prerogatives ; whilst acute hallucinations frequently occur at this period, lending fresh intensity to the drama which he enacts. In the more confirmed calm of a later stage, a love of mystiC Symbolisin is almost invariably apparent ; the monomaniac will point to some common-place picture on the wall, expatiating on its secret meaning ; he will assume some fantastic badge as the emblem of his exalted dignity — spiritual or temporal ; by fantastic gestures or significant movements of the head he will express some meaning hidden from all except himself; or by uncouth scrawls, or geometric devices, he will symbolise Scriptural truths, Biblical records, or scientific discoveries. By such means endlessly diversified, the sub- jects of monomania beguile their time, and form meanwhile prominent characters in all asylum communities. Their loud threats, their lofty denunciations, their fulminating proclamations, contrast strangely with their impotence in action. They live in an ideal, not a real, world ; and are satiated to the full by the mere semblance of authority and power which such expressions conjure up. On this account they are rarely violent and never dangerous patients ; they are ruled with the greatest facility, requiring only tact upon the part of the nurse to transform them into most useful and willing helping-hands at various employments. Thus we see the patriarch and delegate of the Deity [J. 0.) actively at work in the bookbinder's shop of the West Riding Asylum ; the Empress of Hermon {E. P.) busily plying the needle, trimming the patients' bonnets in the workroom ; the " Saviour of mankind " (.7. B) taking an active part in the domestic arrangements of her ward ; and a notorious admiral who formerly ruled the seas in days gone by, contentedly framing pictures in the joiner's shop. Cases of Monomanixi. In the following case of J. 0. we see the subject pass through the transition period from mania to genuine monomania ; his case forms a good illustration of the mystic symbolism in which these patients, as we have said above, so frequently indulge : — J. 0., formerly a prison warder in South Wales, has been resident at the West Riding Asylum for nearly nine years. When first admitted he was thirty-six CASES OP MONOMANIA. 195 yeai'S of age, a well-nourished man of medium height, and free from any Ijodily ailments. His wife had long recognised his mental failure, but maniacal excitement had now compelled her to place him under restraint. He was at this time, undoubtedly, the subject of fixed delusions: "all human agencies were in league against him, and there was a conspiracy in high quarters to damage him." He had written to the prison commissioners repeatedly about these plots, and was at that time writing a book, on "Religion." He talked much about various instruments he had invented, especially "an air and water engine, requiring no boiler," for which he was about to obtain a patent. His condition at this time, and during the following twelve months, was much mixed-up with mauiacal excitement — in fact, it was the transition period to typical monomania. During this period he was often hostile, most unsociable, and utterly indolent ; had an arrogant, overbearing demeanour ; stalked up and down the wards as though in a position of authority, and grew angry at the most trifling opposition. He was usually reticent, but occasionally talked upon the subject of his inventions and of his experiments upon lightning, which he had conducted by " holding pieces of various metals in his hand during a thunderstorm." He then commenced working on the farm, but would spend most of his spare time reading his Bible — making many differently shaped crosses out of bits of wood, straw, &c., often carrying one in his hand. He declares that he was wrongfully sent here ; that he is deputy-governor of a gaol, and possesses the warrant of his appointment; and that he has made numerous discoveries in electricity and magnetism. Since this period he has been regularly employed in the bookbinder's shop, where he is a useful and industrious worker; he is an intelligent workman, and is calm and consistent in his behaviour at all times, outwardly betraying no evidence of the profoundly delusive state under which he labours. He regards himself as a patriarch of the church, and as the appointed of God to denounce judgments against all evil-doers. Feeling his confinement here inconsistent with these views, he applies to all the crowned heads of Europe for assistance against the perseci;tions of the medical profession, of whom the writer is the arch-traitor. He writes denunciatory letters to the medical superintendent, calling upon his head the curse of the Almighty, and sends him, every week or so, a pen and ink outline sketch of a coffin, as a last warning, often accompanied by the words, "Behold thy doom;" addressing his missives, "To all whom it may concern," or "Let this find its owner," with some similar suggestive memento mbrl. Occasionally his letters to the medical staff are lengthy and argumentative, freely interspersed with numerous texts, or scriptural references, containing also words of exhortation and warning, often dictated in the style of the New Testament writings ; but it is more usual to find them full of fierce denunciation and threats of divine judgment, as e.g., the following: — " May 6, 1SS7. " Professed Englishmen or Britons, "I, an English-born subject, J. 0., born in the County of Yorkshire, near Huddersfield, Do hereby solemnly declare in the name of 'God,' the Almighty, the Supreme and Invisible Spirit, and pronounce through His Almighty authority, His damnable curses and judgments upon you, and your supposed and so-called Gracious Sovereign and all her subjects, both spiritual and temporal, for this my incarceration in this Asylum or any other. "J. 0., late of Hahfax." 196 STATES OF MENTAL ENFEEDLEMENT. A few mouths later the following incoherent address was issued : — St. John vi., 31, 49, 50, 51. Hebrews ix., 4. 1 Corinthians ix., 11-27; xii., 12-36. 2 Corinthians viii., 12-15, 20, 21; i.x., 6-9, 10, 11 ; xi., 22, Galations iii., 2, 4, 5, 10, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29 ; v., IG, 17, IS, 19, 20, 21, 22, 23, 24; vi., 8-16. Ckntlemen, — Now you may be able to judge for yourselfs once more; whom is most ablest, to the work of a Doctor or Physician of Bodily weakness, temporally, moral or as Physician of the Soul; spiritually according to the Gift of the Grace of "God," and of His Spirit; for His Spirit lies in a vast number and quantity of human and animal beings, in different ways and forms, actively and inactively ; I should think it is quite essentially that you may perhaps have known these things, but how arbitrary and selfish have you seemed to hold them so close ; which may well be defined in one single instance through your Incapacity in not being able to discharge me, your supposed patient in Lunac}', whose name is and ever was J. 0. in England, his Home-born countrj\ Believe me, yours ever Faithful and sincere, Dr. J. 0., PItysician Temporal and Spiritual of Ikulti, Y,Jl, Mind, and Soul. To Professio Medico De la Russ; Austria; Germany et Prussia; Italia et Continental Europe. He then proceeds to call down the anathemas of the Romish Church upon his persecutors, addressing long epistles to "the Head Pontiff of the Church of Rome," every other word or so in his address distinguished by a capital letter. Another of his curious vagaries showed itself prominentlj'^ at this time, and he essayed to address the various European potentates all in their own tongue, or rather in a garbled mass of foreign and unmeaning words, strung together in the form of an epistle — affecting Latin, Greek, German, French, Spanish, Italian. These productions of his facile pen were often decorated by a cross, a crown, an archbishop's mitre, a national flag or other device in coloured inks. The following is a fragment of one of his strange letters to the Spanish Consul in South Wales: — "Marzo, Tkiext.\, "DlEZ Y OCHO OCHENTA SlETA. "MoN Amlso, — Escribo si bien me acuerdo caballero ; hace mas de cinto amos entonces envoyo aquis ; yo lo pongo en usted a Judicio la mameso ; yo no u minimo el loco ; telmpo acero envoyo, ni el altro entonces, Siempre Bastante bien a, ir grande. Que le parece u usted, &c., &c. "JOSE 0. "espanal consulato, "Cardiff, Wales." But our friend, J. O., was shrewd enough to turn such vagaries to good account, and fearing that his letters were intercepted and read, he concealed under an out- landish foreign garb his real English-uttered sentiments ; it was some tinje ere this w"as discovered. Thus the unintelli^'ible jargon — " ikaudonomor butri CASES OF MOXOM/NIA. 197 miliesttno enkuraj u, ii everso cnkiirajme, bel evmc stilyuis in anforkrisf, yurstokomzun, J. 0." — turns out to be, "I can do no more but try my best to encourage you, you ever so encourage me. Believe me, still yours in and for Christ, yours to come soon, J. 0." Tliese fruitless epistles brought down his further maledictions in the following pointed declaration : — To THE Medical Profession AND Co JI MIS SIGNERS OF LuNACY, Yunr King or Queen or any of your Princes, or Bishops, or Priests, or Judges, or Helpers. Through and by the will of God you're not safe one hour or day so long as I and such as 1 — J. 0. — is within such Institution or any other adversity of incarceration. (At the foot of this was a neatly drawn outline of a coffin.) In the following case we have a remarkable instance of the trans- formation into the monomaniacal state upon the occurrence of epileptic seizures : — J. B. was admitted at the age of forty-two years in an acutely melancholic state. She was of slight build, thin, reduced and anaemic, having been in feeble health since her last confinement, twelve months before. She was not known to be an epileptic. At this period she was greatly distressed by aural hallucinations, and when at home the previous day had heard people moving about beneath the floor of the room she occupied, sharpening knives and saws to murder herself and family ; all night long she heard her child crying distressingly on the staircase, and men scraping at the walls of her bedroom. She was firmly convinced that her soul was eternally lost — could see no escape from destruction, and under these impressions she made several desperate attempts at strangulation. She refused food and medicine most persistentlj'^, and accused herself of every form of iniquity. This despondency continued for some six months, when the patient had a series of epileptic fits, the character of which was not noted at the time ; but now an entire change was inaugurated in her mental life — the depression abated, and she assumed a cheerful aspect ; took an intense interest in all around her, and became an active and valued ward-help. The epileptic seizures have occurred ever since, but invariably at night, and with very long intervals, often of years, between the attacks. For many years she has been a typical example of religious mono- mania. The fits she believes are caused hy the "working of the spirit — which has been w^orking very powerfully upon her for some time — because the Father has thought proper that she should bear it for the salvation of the world." She is still in delicate health, and suffers considerably at times from migraine. Always smiling and cheei'ful, afiable with all alike, she is a great favourite in her ward ; all who are brought into contact with her are, she believes, made eternally happy through her instrumentality. She is still in idea a sufferer — a Christian martyr. " She came here because she thought she had to save all the world. She knows that Christ died to save sinners, but feels that (JJod has given her that power. She thinks that if persons touch her it does them good, and saves them. All who have come here have come through her, and she feels responsible for them. If all their souls rest on her, what an account she will have to give at the day of 198 STATES OP MENTAL ENFEEDLEMENT. judgment ! She cannot sleep at times because the ' spirit keeps working in her like quicksilver.'" Thus all former painful mental states have been sublimated into this higher ideal existence. She still answers to her former name, but her jjcrsonality is, as we see, completely transformed. At times she will state that she feels she is Jesus Ciirist, that she existed before the foundation of the world, and will cite scriptural passages referring to the Messiah, as applicable to herself. She "loves every- body in the world," and during the evening is often found at the window singing aloud, " Hold the fort, for I am coming," in shrill accents, with the object, as she says, of "helping those outside." She has a gentle, quiet, inobtrusive manner, has the sweetest disposition, spends much of her time perusing her Bible, and is often found seated musing, with her hands crossed upon her breast, and an expression of peaceful resignation stirred into beaming animation when she is addressed. E. T. , aged forty-six years. This patient, who is a married woman, the mother of six children (the youngest born four years prior to her admission into the asylum), was then suffering from her first attack of insanity of a few weeks' duration only. She had been confined to bed for twelve months, suffering from bronchitis and emphysema, and troubles incidental to the climacteric period. The history of her case was one of depression, groundless fears, and delusions of suspicion fostered against her family, who she believed conspired to poison her ; under the influence of these fears she obstinately refused food, and passed restless nights, sitting up in bed continually praying. She was regarded as at tlie climacteric. Family history devoid of neurotic taint. On admission she was extremely thin and wasted. She is short of stature, bony, and of a somewhat masculine type ; she has light blue eyes, a sharp penetrating glance, and a suspicious demeanour. vStates that her husband, daughter, and neighbours have conspired to remove her from her home, that her daughter has the power of witchcraft, and can appear in various forms ; that her family and neighbours introduce saliva and other disgusting matter into her food ; and that she has been given gold dust and serpents to swallow. She stoutly maintains these statements, and declares that on the previous night she believed herself to be in labour of serpents. She hears her son and daughter whispering through tiie wall, and addressing her by foul and abusive names. No visual hallucinations are at present obvious. The physical examination revealed general bronchitis with emphysema, but no consolidation or evidence of incipient phthisis, such as her appearance suggested. Steady improvement occurred in her case, her delusions faded away, and within a month she was regarded as convalescent. Then occurred a sudden relapse, in which maniacal excitement replaced the former mental depression, and a downward career of mental reductions has ensued unchecked ever since. Her general health underwent marked imi)rovement, but slie always remained pale and anaemic. Her excitement was characterised by loud, abusive, and lilasphcmous language to all around her, and l)y a hostile ilemeanour and threats of violence to those who approached. Little or no abatement of her excitement took place under treatment by succus conii, bromide, with Indian hemp, opium, or hyoscyaminc. Her con- dition, during the five years succeeding the onset of attack, was that of typical monomania. She would sit isolated from other patients in a recess before a win- dow, choosing a position where a portrait of one of the Royal Princes hung opposite her. Here, decorated in fantastic attire, her hair adorned with feathers, coloured MONOMANIA OF PKIDE. 19D ribbons, or mock diadem, and her dress decorated with coloured devices, all of ■whicii had some mystic symbolism to herself, she would sit in state, the embodi- ment of pride and arrogance. From hence she issued her mandates to the world around, or met those who approached her with scornful defiant gaze, together with a torrent of lofty abuse and imperative orders to withdraw from her presence. Occasionally she would deign to expatiate on her lofty rank, would point to the porti-ait of the young Prince, and speak of herself as the Empress — his motlier. llcr conversation was now very incoherent at times, but was invariably tinctured by her grandiose delusions. She frequently complained of sudden sharp pain in the side, which she attributed to having been shot there by the medical officer. On one occasion she was heard to utter a loud piercing shriek, and was observed, transfixed witli horror, gazing at, and pointing to, an imagined tragedy, which was being vividly enacted before her — " See ! see ! " she cried, "they have the knife in him — look at the blood ; " then she fell back in her chair and laughed with derisive laughter. Ten years after her admission her habits are noted as similar, and the mental features as unaltered. "She has a forbidding, arrogant, threatening demeanour, says — •'! am the Queen — I will have your blood;' also calls herself Lady Skelton. and is very angry if addressed by her proper name. Calls herself the Scotch Queen — the Queen of the whole earth — and in this transformation of her own identity is now involved the personality of all around her, to whom she gives wrong names. Being accosted by her medical attendant, she asserts — ' I am the Queen, and can get you hanged ; that vagabond talks about the Queen ; you are a tall young man, and will lose your life in seven days if you are not quick; I've been chopped to bits.' " Twelve months later, evidence of phthisis was revealed, and a slight attack of haemoptysis occurred. She complained of pain in the lower dorsal region, and asserted that "that part of my spine has been cut out, and made into jelly ; all parts of my body have been made into jelly and thrown on the floor ; I've been a doctor 300 years." Latterly, she has broken down completely in health ; phthisical symptoms have been for some time prominent, and occasional haemoptysis has occurred ; completely bed-ridden, and a great sufferer from exacerbations of her chest symptoms ; much prostrated in health, pallid and emaciated, she still asserts her royal prerogative, insists upon being addressed by her formal title ; issues her mandates to her courtiers, princes, and statesmen, with gestures of mock authority ; and still, at times, becomes irate at the least appearance of opposition. There is now considerable mental enfeeblement ; increasing incoherence of ideas, and a tendency to substitute unmeaning words, and interpolate them in her sentences so that they constitute at times a confused and unintelligible jargon. She is now tractable and devoid of all the repellent features characterising the early stage of her alienation — amiable, as a rule, but still subject to mild outbursts of irritability and excitement, in which her delusional notions become very prominent. All these cases, we observe, are of many years standing ; in fact, monomania is a most chronic form of insanity, gradual in its inception, and very slowly progressing towards general mental enfeeblement ; the coherence of former associations becomes successively loosened, whilst the fictitious personality persists and erects itself skeleton-like amidst the ruins of mind. 200 STATES OF MKXTAL ENFEEBLEMENT. E. C. was admitted at the age of thirty-one years. Slic was a married woman with a family of three cliildrcn. Subsecmcnt to certain disappointments in money matters, she became maniacally excited two months prior to her admis- sion, and had attempted suicide by cutting her throat with a knife. The history, which on most points was defective, testifies to excitement, incoher- ence, a tendency to rhyming in her utterance, and several gross delusions. For some years she had suffered from spinal curvature, which was found to be in the dorsi-lumhar region, with a convexity strongly directed backwards and to the left. Her excitement abated in the course of some six months— she became calm, orderly, and industrious. With this emotional calm, however, it was found that she was the subject of fixed delusional notions, all of which suggested suspicion and persecution upon the part of her neighbours and those immediately associated with her. These delusions were of very varied nature. She believes that by the agency of machinery, concealed beneath the building, she is subjected to constant torture at night — her body " screwed up" and her flesh torn from the bones, and that she is "rocked in her bed by invisible power." Believes she has a second body beneath the floor, which, when operated upon, causes suffering in her tcaX body. " When they tie the rope round the other body down yonder (pointing to the floor) my bowels are screwed up and my bones crushed ; they (her persecutors) often fetch me to Halifax from Wakefield by electricity, and they have taken my children out of their graves and dragged them about for one and twenty years." Aural hallucinations were frequent phenomena, and she was often detected listen- ing at the window to imaginary voices, receiving messages from distant towns, holding communication with her daughter, &c. Associated with these ideas of cruelty and persecution, there were feelings of great self-importance and authority encroached upon. The as5'lum buildings were her possession, and the staff of officers her subordinates, whom she threatened with instant dismissal if they ne^^lected her commands. She invariably met the medical oflBcer, day by day, with the authoritative order for her dinner, and, as invariably after her meal, demanded a cab to take her home. When questioned upon dates, it was noted that she was always a j'ear in advance, although correct as to the day of the month. This, upon examination, was found to depend upon the delusion that, "in the year 1865 {ichen she icas admitted into the asylum), they (her persecutors) did not add the figure, but allowed two years to slip by as 186G, for reasons best Jcnovn to them- selves." She is sadly perplexed at times about the quantity of food consumed by her fellow-patients, believing that the institution is supported by her bounty. Between the years 1884 and 18SG, she suffered from three very sudden and pro- longed attacks of acute maniacal excitement in which she was utterly incoherent, noisy, voluble, and was greatly reduced by insomnia and restlessness. In the intervals between such attacks, her delusions remain unchanged. She refers to " the annoyance that is kept in the wall ; they can move it elsewhere, or she would have had the wall down long since. Evil trauslatings issue from the wall to her back. Persons act on her by electricity, so that if she be walking, they can throw her flat down on her face ; it is their interference that has caused the deformity in her back." PERSISTENT MENTAL INSTABILITY. 201 RECURRENT INSANITY. Contents.— Definition — Establishment of Labile E(nnlibriura— Prevalence at Sexual Decadence — Heredity — luHuence of Neurotic Heritage and of Ancestral Intem- perance— Atavism— Recurrence in the Congenitally Defective Subject— Morbid Excitement and the Moral Imbecile— Alternations of Excitement and Stupor- Hysteria and Menstrual Irregularity- Eroticism {A. S., M. A. J/. )— Eecurrence in Adolescence [M. C. (K.)— riecurreuce at the Climacteric (//. 0.)— at the Senile Epoch (/. . X.)— Morbid Impulsiveness — Hallucination and Delusion (./. B.) — Prognosis — Treatment. All forms of insanity are prone to recur ; from whatever source the unstable condition of the nervous centres is derived, whether from inherited neurotic tendencies, acquired vices, or physical ailments, all alike (even the most recoverable forms) have such a predisposition, intensified by the occurrence of an attack. It is a general law that the more frequently a centre discharges its energy, the more sensitive to excitation becomes the mechanism, and the more readily the dis- charge repeats itself. Hence, the extensive cortical discharges which account for the reductions of insanity will, even in the most complete recoveries, tend to foster a similar hyper-sensitiveness, and a labile equilibrium of the parts previously involved. By recurrent insanity we mean a type of mental disturbance in which there is an establishment of this labile equilibrium ; and the conditions under which such recurrence is brought about, together with the essential nature of the attack, form the subject of our inquiry. In the first place, it must be remembered that a neurotic inheritance, however strong, does not necessarily result in recurrent insanity ; and, in the next place, it should be noted that simple relapses of insanity, which may occur at diflTerent periods throughout life, do not imply the existence of the neurotic type here alluded to as recurrent insanity. Recurrence, with long intervals of repose, is not the characteristic of this type, but rather the rapid succession of attacks, each followed by an apparent complete convalescence. " Notwithstanding the authentic instances of recurrent insanity showing intervals of lucidity for very long periods, so that the disease is known to be dormant for years, it is by no means to be inferred that every case that is a second attack belongs to such a categoxy" (Sankei/).* A large section of the insane community is, therefore, constituted by these unfortunate ones, who pass many years of their life between an asylum and their home during frequent alternations of sanity and insanity. Those not con- versant with statistics of insanity have but a faint notion of the miserable existence of such victims. The following scheme of some fifty recurrent cases amongst women will exhibit this fact in a striking manner : — * Lectures on Mental Disease, p. 179. '202 persistknt mkntal instability. Table of Female Recurrents. Number of Attacks. Occurring between the Ago of Representing lutorval of Number of Attacks. Occurrins between the Ago of Representing lutorval or 5 16 and 32 y IS. 16 yrs. Several 3 1 and 36 yrs. 5 yrs. 3 17 „ 20 „ •i „ 5 32 „ 48 „ 16 „ 3 17 „ 21 „ 4 „ 8 32 „ 42 „ 10 „ Several IS „ 30 ,, 12 „ 5 33 „ 37 „ 4 „ 3 19 ,, 24 „ 5 „ 4 35 „ 50 ,, 15 „ 3 20 ,, 21 „ 1 „ i 6 35 ,, 53 „ 18 „ 3 20 „ 25 „ 5 „ 4 35 „ 48 ,, 13 „ 3 20 „ 33 „ 13 „ 3 39 „ 46 „ 7 „ 3 19 „ 28 „ 9 „ 5 38 „ 50 „ 12 „ 4 24 „ 44 „ 20 „ 3 38 „ 40 „ 3 23 „ 25 „ 2 4 38 ,, 56 „ 18 „ 5 24 „ 36 „ 12 „ 3 40 ,, 45 „ 5 „ 4 25 „ 35 ,, 10 ,, 3 42 „ 59 „ 17 „ 3 26 ,, 40 ,, 14 „ 7 43 „ 53 ,, 10 .. 5 28 „ 45 „ 17 „ 5 43 „ 58 „ 15 „ 4 29 „ 42 „ 13 „ Several 43 „ 58 „ 15 „ 5 29 ,, 52 „ 23 „ 6 42 „ 51 „ 9 „ 3 29 „ 33 „ 4 ,, 4 41 „ 58 „ 14 „ 3 30 „ 41 „ 11 „ 3 47 ,, 55 ,, s „ 4 30 „ 44 „ 14 „ 3 46 „ 50 „ 4 „ 4 30 „ 42 „ 12 „ 4 48 „ 63 „ 15 „ 6 30 „ 43 „ 13 „ 5 50 „ 53 ,, 3 „ 3 30 „ 35 ,, 5 ,, 3 50 „ 58 „ 8 „ 3 30 „ 42 „ 12 „ 5 51 „ 54 „ 3 „ 3 4 1 30 „ 35 „ 30 ,, 55 ,, 5 „ 25 „ 3 Total, .00 Persons. lS3(TSevei-alj Attacks. 54 „ 56 „ 2 „ When dealing with the insanity incident to the periods of puberty and adolescence, it will be seen that recurrences are not frequent in the proper acceptation of the term ; up to the stage of complete con- valescence relapses are peculiarly prone to occur, but, once the cure is complete, a recurrence of insanity is not frequent, sixteen instances only of a third or fourth attack being given in 277 cases. Recurrent forms of insanity are far more prevalent in adult life, and increase gradually towards the decline of manhood and womanhood. In men, quite one half the cases of recurrent insanity occur after forty years of age ; and out of a total of G6 individuals so affected, 49 had INCIDENCE OF IlECURUENT INSANITY. 203 passed their thirtieth year of life ; similarly in women, we find that nearly half the cases cover the period of life between forty and fifty- five, which may be safely taken as the limit of the climacteric period. In fact, the period of life between forty and sixty years in the female is peculiarly susceptible to this form of mental derangement, being the period involved in sexual decadence and the advance of senility. In man this feature is not so apparent, there being other influences, as we shall see later on, which tend to beget in him such recurrent attacks at a somewhat earlier period of life. Respective Age in Qcinquennial Periods, in 164 Cases of Recurrent Insanity, Age. Males. Females. Up to 25 years, 10 9 „ 30 „ 7 8 „ 35 „ 7 9 „ 40 „ 9 8 ,. 45 „ 7 21 „ 50 „ 9 9 „ 55 „ 5 13 „ 60 „ 4 17 ,. 65 „ 3 4 „ 70 „ 5 66 98 Who are the subjects most liable to this form of mental disturbance? They have a strongly stamped hereditary history of insanity ; the parentage, when facts are procurable, revealing attacks of insanity often along both paternal and maternal lines. It is also notable, that in a large proportion of cases, we find the history of ancestral insanity attached to the grandparents, or the collateral line of uncles and aunts, significant of a more remote origin for the neurosis. The actual proportion of cases revealing strongly marked hereditary features (often involving several members of the subject's ancestry) amounts to 36 per cent.; but, in 12-5 per cent, only was it discoverable that the subject's parents had been insane. In the next place we observe that other neuroses, notably epilepsy, are absent in the antecedent history. Chorea, hysteria, epilepsy, hemiplegic seizures are prone to occur in the ancestry of a certain class of the insane, as was seen to be the case in the insanity of female 204: PERSISTENT MKN'TAL INSrAHILITY. adolescents, wlici'c 20 per cent. I'evealed this predisposition ; but such a neurotic history is attached to only 4-4 per cent, of the recurrent forms of alienation. Again, parental intemperance— a potent source of all forms of convulsive neuroses — is revealed in 11 •! per cent, (males 89, and females 12-6), or over tioo-tliirds the proportion of cases shown by adolescent forms of insanity ; and in 80 per cent, of such instances of parental intemperance, the fatJier was at fault. This fact is a suggestive one, and the question naturally arises — why one form of insanity should appear, as the result of an insane inheritance, and another as the heritage from epileptic parents or grandparents, or as the outcome of parental drink *? If we accejit, as we have reason for so doing, the dictum that the hereditariness of insanity, like the heredity of other pathological tendencies, is restricted by sex and age, it may reasonal)ly be assumed that the neuroses of early life — chorea, hysteria, epilejDsy — will be especially prone to reassert them- selves also at a similar epoch in the life of the offspring ; and that, thei'efore, an epileptic father or grandfather who became epileptic at jmherty Avill be liable to transmit to his sons a morbid tendency which appears as epilepsy or the like at the adolescent period. Insanity, on the other hand, is not a disease of early years, and, as we have seen, is far more frequent towards the middle period of life ; hence we might expect its appeai'ances as an inherited affection to be regulated by the same laws. This is seen to be the case with the recurrent form, which is strongly inherited, and which conforms to the law of insanity in general, in being most prevalent at the middle epoch of life. Adolescent forms, however, must be differently accounted for, and may indeed with justice be conceived of as the morbid expression of an inherited neurosis of the epileptic type — epilepsy in the collateral or direct line tending to issue in insanity; often even by atavic descent. It is generally conceded that alcoholic craving is often an inherited condition, as in the form of " dipsomania ; " and that parental intem- perance frequently results in the imbecility, idiocy, epilepsy, or deaf- mutism of the offspring — all, we observe, indications of arrested development or disease in early life. To this category we may add adolescent insanity, which is especially apt to be engendered in the offspring of those addicted to heavy drinking, under certain physio- logical conditions and the operation of other excitants. To revert, however, to the recuri-ent form — the heredity observed in such subjects is more often atavic than direct — its frequent appearance in the collateral line of uncles and aunts, being strong presumptive evidence in favour of an atavism even where no other record exists. Its comparatively later development than the adolescent INTEMPERANCE AND RECUKRENT INSANITY. 205 form appears to be governed by the law of limitation by age, wliich is enforced in most hereditary atiections ; the ancestral affection occurring in adult life tends to reproduce itself at the same epoch. Parental intemperance declai-es itself almost exclusively on the father's side, but is by no means a prominent predisposing element. The neurotic temperament of these subjects is revealed in an undue excita- bility, and a defective moral control, exhibited often in ungoverned passion, and generally mobile emotional states ; occasionally, such lack of control amounts to mild forms of imbecility of the moral type — congenital defects occurring in some 12 per cent, of such cases. For the first start in life, such organisations may readily adapt themselves, and the period of puberty and adolescence passes by without serious risk; but, as the complexity of life increases in the ever more complex environment, corresponding developments do not occur, and adapta- tion is at fault. The organism but awaits some exciting cause which, as with a fulminate, determines the attack of insanity. If a female, the period of gestation or parturition may so act, or, still more forcibly, the epoch of the menopause ; if a male, alcoholic indulgence is a most potent agency in causing the fui'ther reduction which issues in acute insanity. The climacteric, as we have already .stated, is a period prone to induce and foster a craving for stimulants ; and hence, we find that 13-7 per cent, of female recurrents were addicted to intemperate habits, whilst 30 per cent, of the male recurrents had succumbed to this vice. In short, the subjects prone to recurrent insanity are, in general, congenitally predisposed by defective mental organisation, and inherit a strong parental or atavic tendency to insanity, which usually appears upon the indulgence in alcoholic stimulants, or at the later critical epochs of life — notably the climacteric and senile decrepitude. Dr. Sankey, on the other hand, regards the periodicity of recurrent insanity as bringing this disease into close alliance with epilepsy; his statement is to this effect : — " By the very character of periodicity (a character of the utmost importance in their pathology), they are allied to epilepsy, and in certain cases actually terminate in well- marked symptoms of that disease; especially when our views of epilepsy include all the phenomena and variation of the j^et'd mal, now generally classed with true epileps3^" * Nature of the Attack. — The seizui-e varies as to its symptoms and course with the exciting cause at work, and the period of life when it occurs. There may be' mild maniacal excitement, without obvious delusional perversion ; or the attack may be characterised by * Loc. cil., p. 179. 20G PERSISTENT MENTAL INSTAUILITV. delusions of sns|iicioii unci persecution ; or by an ordinary lijpemania, ■with delusions of a depressant nature. Maniacal conditions certainly prevail in the earlier and later periods of life — in adolescence and in senility ; whilst the climacteric cycle usually calls forth emotional depression and mehincholic delusions. Of subjects prone to recurrent seizures of nuuiia or melancholia, the more important are cases of Congenital mental defect. Insanity with menstrual deraogenient. Adolescent insanity. Puerperal insanity. Alcoholic insanity (acute). Climacteric insanity. Traumatism (cranial injur}'). Senile insanity. Epileptic subjects, in whom recurrent seizui'es are frequent, are necessarily excluded here by their intrinsic importance, and will be considered apart. Recurrence in Congenitally Defective States.— Those whose mental organisations ai'e congenitally defective in both sexes are pro- verbially subject to passionate explosiveness, to rapid alternations of mood, and to other indications of great instability. Such cases are often misjudged, the normal undisturbed state being one of striking placidity and great amiability, which seems to render it highly improbable that the passions will so readily assume the opposite exti'eme ; but, so it is, that such extremely amiable natures will pass, upon the most trivial disturbance, to a bitterness and a passionate demonstrativeness often exhibiting an inherent cruelty and viciousness. "With lack of inhibitory "staying" power, sucli individuals, as before stated, meet a severe trial during the adolescent period of life ; but, if they do not succumb to insanity at this epoch, they are still subject, upon the occurrence of trivial agencies, to an attack of insanity at any subsequent period of life. The agencies which are thus potent towards such an issue are alco- holic and sexual excess, masturbation, and indulgence in morbid excite- ment of any class. jNIasturbation, especially, lays the groundwork for an attack of insanity by the nutritive changes induced in the nervous centres — their exhaustion and the ultimate impoverishment of blood. If this vice be associated with alcoholic indulgence, the effect is vastly augmented, and the worst forms of recurrent insanity occur. Another frequent source of the attack is the powerful influence of morbid emo- tional excitation — sensational plays, sensational literature, " revival " services, "Salvationist" crusades; all have much to answer for in their effect upon the moral imbecile, ;nul those lacking in moral control. Menstrual derangements, again, foster in the congenitally defective an explosiveness which may issue in an attack of insanity. In all these cases the agency, whether it be menstrual irregularity, STUPOR AND HYSTERIA IN RECURRENT INSANITY. 207 masturbation, sexual excess, alcoliolic intoxication, or undue nervou?> excitement from moi'al causes, acts by occasioning a malnutrition of the central nervous system, already j>redisposed to insanity through a neurotic inheritance, expressed in a defective mental organisation. In the male subject, so constituted, the attack of insanity is almost invariably one of excitement, characterised by noisy, boisterous humoui', mischievous conduct, destructiveness, viciousness, and out- bursts of violence. Diurnal quiet often alternates with nocturnal excitement — the nights, in such cases, being spent in noisy, incoherent rambling, and often prolonged insomnia. Frequent relapses of excite- ment are prone to occur before convalescence is more permanently established. Should masturbation complicate the case, the subject becomes a prey to delusions of suspicion, and altGPnations Of excite- ment and stupor will often take place. In the female subject, the attack of insanity occurring is also one of acute excitement, where mild forms of moral imbecility or naturally defective inhibition are maintained. The type is usually that of so-called hysterical insanity, I'eproducing, as it does, many promi- nent hysteric symptoms. The typically hysteric subject is generally the subject of menstrual irregularities, as in the following cases : — A. S., aged twenty years, mill-hand, admitted May, 1870. A cousin was insane and epileptic. This patient was, in 1868, placed in Morningside Asylum, and remained there five months, being discharged at the request of her friends, although probably not recovered. Her second attack, for which she was treated here, was characterised by violent eroticism ; she conversed incessantly on marriage, &c. Its duration was short, but she was not considered sufficiently stable to be discharged under nine months. The menstrual function had been regularly performed as regards time, but in amount variable, occasionally rather profuse, more often there was amenorrhoea. In less than two years she again required restraint ; the catamenia having ceased, she, about a month afterwards, became restless, sleepless, and excitable, prone to destructiveness, and very indecent both in sjieech and demeanour. When admitted, she was somewhat maniacal, but intensely erotic — betraying much perverted sexuality. Showed evidence of the existence of aural hallucinations. She improved, and was dis- charged under a twelvemonth. A fourth recurrence of msanity took place twenty months later, the catamenia being on this occasion regular. Only slight premonition was given, and the patient became suddenly excited, violent, inco- herent, with much religious matter mixed up in her ravings; but the sexual feeling only displayed itself once in three weeks, during which time the mania subsided. Eroticism was alone manifested in connection with irregularity of menstrual function, which occurred later ; it did not cease until the catamenia had resumed their normal characters. Discharged in thirteen months. Another relapse, eight mouths subsequently, was purely maniacal in kind ; there was rambling at tirst upon religious topics, slight or no evidence of eroticism, and no added irregularity of menstrual performance — which, it was stated, generally erred on the aide of insufficiency. Seven months accomplished a cure. 208 PERSISTEN'T MENTAL IXSTABILITV. The sixth and last admission occurred eight months later ; menstrual derange- ment had again preceded. The condition was one of simple mania, with great religiosity, but without sexual characters predominating. Convalescence occurred immediately the catamenial irregularity was remedied. Sent out in seven months. M. A. M. , aged twenty years, domestic servant, admitted May, 1881, Patient's father and mother eccentric. No insane relations. M. A. M. was a girl of steady, industrious, and healthy habits, until one year before the above date, about which time, it was said, she had two transient attacks of mental disorder. One week ]irior to admission here, she became altered in manner, depressed about religious subjects, restless, excitable, and ^'iolent. When received into the asylum, she was in a state of acute mania — boisterous, mischievous, and of rather dangerous and treacherous propensities ; she remained in this condition for a few days, when she gradually settled down and behaved quietly and rationally, excepting for a little chance flightiness, during three weeks — then gave way to a burst of unruly excitement, showing much erotic tendency and depravation of habits. There was no catamenial irregularity. She merited her discharge, recovered, five months after admission — and remained outside in domestic service for fifteen months, during the last five weeks of which she began to fail in general health and to become wild, restless, noisy, and turbulent. Her manner on admission varied between excitability and garrulousness, and obstinate reticence and brooding. The maniacal state, with considerable prominence of sexual feeling, continued for a week and then began to subside. On a few occasions, however, she had slight relapses of excitement, at times preceded bj' gloomy reserve. On the whole, behaved in an orderly and industrious manner, and after seven months' lapse, was convalescent and sent out. Catamenia very irregular. It appeared that from the period of her discharge to that of her readmission, two months later, the patient had been flighty and excitable, and became unmana:_'eable. Her symptoms on this third recurrence were, in the main points, repetitions of those exhibited during previous attacks, including some erotic display; and the progress of her case wais, in most respects, similar to that of the preceding one, but uninterrupted by relapses, although the jjatient's irritable intolerance of supervision rendered need- ful much tact in her management. She remained excited at night for some time, after her behaviour during the day-time had improved; the erotic tendencies ceased shortly after her admission. She was quite convalescent in thirteen months; but was only outside the asylum for two weeks, having had a fourth recurrence of mania almost immediately after leaving. Sleeplessness, wandering, excited and violent conduct prevailed, and, when put under care, she was very maniacal, gay, flippant, and inattentive; j-et, as on previous occasions, recognis- ing all with whom she had previously been brought into contact. In the following three mouths, frequent relapses into a turbulent condition interrupted longer periods of industry and quiet. For twenty months she remained free from any outburst, and again, for three months, passed through a phase of excitement, characterised by silly and indecent talk, gay carelessness, and violent tendencies. For the last year, no relapse. Still an inmate. Recurrence in Adolescent Cases. — Adolescence occasionally ushers in recurrent attacks of mania — three or four such seizures, between the ages of seventeen and twenty-five years, being sometimes witnessed. In all such instances, the symptoms reproduce overaud, RECURRENT INSANITY IN ADOLESCENCE. 209 over again the features (already delineated) of insanity occurring at this epoch. Recurrent mania originating during adolescence is of very ominous portent ; the prognosis is exceptionally unfavourable, in so far that it indicates, for a large j)roportion of cases, a congenitally defective mental organisation ; that many others are doomed to succes- sive attacks beyond this period of life; and that the rest remain chronic residents of our asylums, or are discharged as partial " recoveries " only — or their recovery, if at all complete, takes place after a protracted illness, often embracing successive relapses. M. C. W., aged eighteen, single; a tall, well-proportioned girl, of somewhat delicate aspect, feeble muscular development, dark brown hair, light blue eyes, complexion fair, expression bright, animated, and intelligent. For some time jiasb she has been in delicate health, and is distinctly anfemic. She brings with her a strong neurotic heritage ; her maternal grandmother was twice under treatment at an asylum, her mental balance overtlirown each time by "some love affair;" her own mother is highly eccentric; and she herself has been regarded as very unstable, flighty, and erratic. The lungs and heart are healthy, and the alimen- tary system free from derangement. The catamenia have been excessive of late, and of fortnightly occurrence. For a month prior to her attack, the patient had been attending exciting religious services, "revival meetings," and had been excited over these subjects, talking much in a religious strain. The attack occurred a few days before admission; she became acutely maniacal, garrulous, and incoherent. On removal to the workhouse infirmary, she tore down the pads of the padded room, was extremely violent, and her conduct most outrageous. When brought to the asylum, the maniacal condition was still acute; she was good-tempered, jovial, mischievous, talked incessantly, and gambolled from subject to subject, but could carry on a connected discourse on closely questioning her, and insisting i;pon a reply. She had a flippant air, was pert in her remarks, and shrewd. Appeared quite unaware of the nature of her surroundings. Left to herself, she talked incoherently, interspersing her remarks with frequent allusions to " angels, hell, and devils," saying that she heard " trains whistling telegrams to heaven, when at the workhouse. " Half an ounce of the succus conii was ordered twice daily, and chloral was given occasionally at night to secure sleep. In four days it is noted — " Much more composed and rational ; sleeps well, and is trying to employ herself usefully ; has not yet lost the flightiness of behaviour and demeanour; appetite good." In a fortnight she was in the "convalescent" ward. A month subsequent to her admission a complete relapse occurred, characterised as before by noisj'^, boisterous behaviour, great hilarity, pertness, and occasional insolence ; her nights were not disturbed by excitement. Conium (succus conii) was given in one ounce dose twice daily, and towards the middle of the month the excitement abated, and she became sufficientlj' staid to attend the weekly dance. Exactly a month after the jirst rclapxe, a second occurs, in which she again proves boisterous, \aolent, and destructive; her bodily health, however, has been progressively improving since her admission. It was clearly seen that her relapses were coincident ivith the menstrual periods ; but the occurrence of the next period was passed witiiout any mental disturbance, and she Avas discharged, recovered, a few weeks subsequently. Six years later, that is, when twenty-four years of age, this patient again became u 2T0t: PERSISTENT MENTAL INSTABILITY. an' inmate of our wards. She had kept well, and regnlarl}' employed as a dyer during the interval, when, upon tlie occurrence of a pecuniary loss by her mother, the daughter again succumbed to her inherited weakness. She was maniacally excited, though not in an extreme degree. There was marked elevation of spirits; she was well-satisfied, gay, flippant, and saucy. She talked loquaciously, very irrationally, and incoherently. Evidently has a strong propensity to render things absurd. Her tone is careless, almost abandoned. She states — "I am Adam's first daughter, and came here in the year 1 ; came here because my mother came first: I think I couldn't give you more straightforward answers, could I?" then lauglis and becomes obscene and repulsive. As on the former occasion, the excitenvent completely abated in a fortnight's time from admission; but only to return again in a violent form, marked by all tlie features above depicted, and extending over a period of about two months, when a gradual improvement succeeded, until complete convalescence was ensured. Recurrence at the Climacteric. — Here, again, we recognise the form of insanity which is regarded as more or less characteristic at this period of life ; it signifies little when the recurrent seizures originated, whether during adolescence, later adult life, or at the menopause, the symptoms of the attack existing at this latter period conform to those with which we are familiar at this revolutionary epoch. Former attacks may have been characterised by maniacal excitement — the attack at the climacteric is almost certainly one of depression, mental unrest and gloom, and of delusional perversions of the melancholic stamp. Take for instance, as illustrative of this statement, the following case in which climacteric insanity eventually issued in senile insanity : — H. 0., aged forty-eight, married ; admitted Ma}", 1S69. Historj- of paternal in- temperance — an aunt hung herself — an uncle died in a lunatic asylum. H. 0. had been intemperate, but had enjoj-ed good health. Of three children borne Viy her, one died of convulsions. The alleged cause of her present attack was domestic anxiety, embracing supposed infidelity on the part of her husband, and occurring at the period of the climacteric. Depression of mind, lasting some six months, culminated in an attack of melancholia, with marked delusions of suspicion, from which she recovered after a residence of ten weeks. Was re-admitted after the lapse of thirteen years. Part of this inter\-al had been spent in Wadsley, and she had been discharged but one week when depression of spirits and apprehensive fears beset her, and she developed the tlehision that chloroform was secretly administered to her. She admitted having been addicted for years to alcohol in excess ; showed great defect of memory, witii much blunting of intellect and emotions. Was industrious in habits, but heavy and sluggish in manner, and of vacant expression. Recovered four months after admission. Remaining at home for nineteen months, she managed to perform her household duties fairly, and though never quite well, was orderly and manageable. Gradually, she developed delusions of the former type — suspicion of intended harm and attempts to chloroform her, basing these on tremulous conditions of her limbs, and apparently also on certain anomalous subjective sensations, perhaps hallucinatory'. Till'; CLIMACTERIC AND SENILE EPOCHS. 211 There was some pro^'rc.ss^vo dementia and slu^gisliness of intellectual operations, with emotional dulness and, especially, defect of memory. Xevcrtheless, in two months' time she improved sufficiently to justify her discharge. Her recovery only lasted a couple of months, though she abstained from alcohol ; she developed restlessness, insomnia, melancholic fear.s, and delusions. When re-admitted for the fourth time, she was anxious and apprehensive, but not burdened with sus- picion to the same e.Ktent as before ; complained of confused feeling in her head, was inappreciative and highly forgetful. From that time forth she was often restless and unsettled, fancying that her relatives were about the building, experiencing both aural hallucinations and visual illusions, and showing much mental enfeeblement and ever-increasing failure of memory. There was much pallor of the face, the skin assumed a parchment-like aspect, and the larger vessels began to evidence atheromatous change. In this state she still remains an inmate of the asylum. The instances of recurrent insanity, recorded in eighty women, took their origin at the follovving respective ages : — Up to 23 yrs.— 30 yrs.— 10 yrs.— 50 yrs.— GO yrs.— 70 yrs. Doubtful. Total. Number of recurrent cases occurring, ... 2 10 15 25 24 2 2 SO Number in which first at- taclc occurred at each period, .... 11 22 17 15 3 ... 12 80 From this table we glean the fact that although the largest pro- portion of cases of recurrent insanity admitted are from forty to sixty years of age, yet the greater number of recurrents date their first attack from twenty to thirty years of age ; and that nearly the same proportion of first attacks occur from thirty to fifty years, as for all periods below thirty. The large accumulation of cases, therefore, which appears from forty to sixty years of age, is due not to the greater tendency to the origination of this form of insanity at this epoch of life — in fact, we see the tendency decline towards fifty — but to the addition of patients who have already had attacks in earlier life. Hence, we must conclude that this epoch of life has no special influence in originating this form of insanity ; but that it is especially prone to excite its recurrence in those who have already sufi"ered therefrom. Recurrence at the Senile Epoch. — The same reasoning applies to the later epoch of senility. Reverting to the same table, it is evident that although as many as twenty-four cases of recui-rent insanity were admitted between the ages of fifty and sixty years, the great bulk were but relics of former storms, since three out of the number only appear to have had their first attack of insanity in this, the sixth decade of life. J. S., aged sixty, married; admitted April, 1S74. Patient belonged to a highly neurotic stock. Her mother and sister were both iusauc; her brother cut his 212 PERSISTENT MENTAL INSTABILITY. throat; ami, at a subsequent period, her sister's son, hecominc; the subject of impulsive insanity, murdered liis mother in tlie most Ijrutal manner, kicking; her to death, and causing the most terrible mutilations of her head and body. Her symptoms had shown a long ])rcmonitory stage ; but four months prior to admis- sion, she was restless, garrulous, betrayed alternations of despondency and excit- ability, with suspicious tendencies. When she came under observation, she was low-spirited, possessed of ill-defined apprehensions of evil, and betrayed painful emotion over trivialities, totally inadetjuate to jirovoke such distress in a normal state. She had a sharp, weazened aspect, with dark piercing; eyes; was emaciated and shrunken. A decided liypochondriacal element was indicated by the promin- ence assigned to imaginary ailments and a craving for sympathy. She would talk for hours about her ailments, and was most importunate upon such subjects at all times. Incessantly restless, she, at times, proved most im])ulsive; her uncon- trollable feelings being embodied by her in an imaginary ailment, " itch in the blood," to which she declared she was subject. At her worst moments, she would fly passionately at other patients without any provocation, endeavouring to inflict injury upon them, and subsequently, evince a hypocritical penitence, and queru- lously dwell upon her ailments ; at other times, her impulsiveness tended to suicidal acts. Being discharged, "relieved," to her husband's care, she subse- quently relapsed, and then attempted hanging herself in a wardrobe ; but, being detected, rushed to the window with intent to leap from it. She was readmitted, and remained at the asylum fretful, self-engrossed, importunate, and impulsive in conduct to her death at the age of seventy-two. All our evidence, therefore, points to the late adoleSCent and early adult life as the period peculiarly prone to this form of nervous disease; nor need we be surprised at the fact, for at this period we meet with important revolutionary changes in the economy, the tendency to the fostering of morbid excitement, and alcoholic indulgence : at a period when in the struggle for existence the demands for a more refined, delicate, and complex adaptation are imperativel}' made upon the organism, and tell with especial effect, therefore, on the central co-ordinating nervous system. Given these as the in- fluences operating in the development of the parental form, the law of "limitation by ag'e" will apply as explanatory of its reappearance at the same period in the offspring. Recurrence in Puerperal Cases. — A certain proportion of women betray a tendency to maniacal perversions upon the accom- plishment of each parturition, or during the early days of each puerperum. These are subjects whose heritage is probably identical with those already considered. In no particular does the seizure differ from what we know of ordinary puerperal mania, other than in this simple tendency to recur. M. B., aged twenty-eight, married ; admitted February, 1S79. History of pater- nal intemperance — a sister melancholic, but did not require asylum treatment. The patient, after her fourth confinement, a severe one, in 1876, developed symptoms of insanity, and was removed to Wadsley, where she was retained about two months. PUERPERAL AND TRAUMATIC CASES. 213 Four months prior to her admission at Wakefield, her fifth confinement occurred, after which she became depressed, distrustful of her husband, and manifested distaste towards her infant; finally, threatened to commit suicide and cut the throats of her husband and family. When received into the asylum, she was con- valescing from mania and rapidly became quiet, industrious, and fairly cheerful. There was neither continuance of, nor return to, the homicidal tendency ; she was sent out recovered in less than two months. The interval between the pre- ceding and the following attack was five years, during which time patient had two children ; the last labour being followed by post-parlum haemorrhage and, more remotely, by profuse menstruation. It appeared that she soon showed mental aberration after her discharge, developing suspicious ideas about her neigh- bours, and fancying that they jeered at her and called her names, and it was stated that she attempted to cut her child's throat. On re-admission, there was much intellectual and emotional torpor, gloom and apprehensiveness of evil, and for some time much querulous and fretful behaviour, anxiety, and hypochondriacal fancies, which, at times, were exaggerated into actual delusions of suspicion ; after a period of four months she gradually became more cheerful and composed, and one month later was fitted for discharge. Recurrence in Traumatic Cases.— It is a fact of no small import, that 20 per cent, of the male recurrents had suffered from cranial injury, usually due to falls from a height \ipon the head, or to a violent blow causing teraporaiy unconsciousness. The injury in no case amounted to fracture, or depression of bone, but was probably confined to molecular disturbance and nutritive anomalies thereby established. The following case is an instance of insanity engendered in an individual of the criminal type, wherein cranial injury and alcohol were important factors in the causation : — B. L., aged twenty-seven, married, hawker; transferred from gaol, December, 1883. The only information as to the family history of this patient was obtainable from the latter herself, who stated that her father had been an excessive drinker, and her sister an inmate of the W. R. Asylum. She was committed to twelve months' hard labour for assaulting and wounding a woman whom she believed to cohabit with her husband. This belief, as well as the alleged cruelty towards her of the latter, appeared to be actual facts, which, added to long and excessive indulgence in alcoholic stimulants, had produced her l)resent mental disorder. Her forehead was deeply scarred, as the result of injuries received by a fall upon the head some years previously. Whilst in prison, the patient behaved with great violence to her fellow- prisoners and the warders, and, on one occasion, made a desperate attempt at suicide, being discovered in her cell, black in the face from strangulation, eft'ected by a piece of cord tied round the neck. During this time, also, she maintained an obstinate silence. She spoke on removal to the asylum, explaining that God had enjoined her to be dumb while she was in hell— /.e., prison. At first abstracted and suspicious, exhibiting many purposeless tricks of gesture and countenance, she quickly became an active and industrious inmate, showing, however, some irra- tionality, together with considerable want of control. Although no delusions of suspicion regarding those surrounding her were manifest, yet the low type of her 214 • PKHSISTKNT MKNTAF. INSTAI5IMTY. ■a]H)carance received coiifiimation in occasioual outbursts of violence, witliout adequate cause, and at all times characterised by the utmost Ijrutality. Her behaviour, however, not deserving of the license of insanity, siie was, after a resi- dence of three months, sent Ijack to gaol. In less tlian two months she had another outbreak, and became most violent, abusive, and foul-mouthed ; procuring a medicine bottle belonging to another prisoner she, with the intention of suicide, drank half its contents before she could be prevented. She was, on her return to the asylum, most maniacal, aggressive, obscene, and apparently the subject of hallucinations. In this state she remained for nearly a week, when she commenced gradually to improve, and ultimately settled down into a quiet affable patient of industrious habits, witii the exception of two or three passionate outbursts of short duration. Apart from actual insanity, nevertheless, she could only be regarded as of low and degraded nature. Discharged within a month of the expiration of her sentence, " relieved." Since her discharge she has frequently figured in the police courts; has been several times in prison, and, during her imprisonment, her conduct has been characterised by the utmost brutality, ferocious violence, and vindictiveness. Frequency of Morbid Impulse.— ^ome 31 per cent, of tlie 13G instances of i-ecurrent insanity manifested suicidal tendencies, Ijotli sexes being about equally subject to sucli promptings. The melancholic forms, and the maniacal outbursts associated with depressing delusions, were especially prone to such impulses; thus, six cases alone show this tendency in women below the age of forty years, all the remaining suicidal cases being at the climacteric period. In the male, on the other hand, this morbid tendency comes out strongly in the younger members; but in all these instances the form of insanity was that characteristic of alcoholic and masturbatic excesses, and delusions of persecution prevailed in each. Even in tlie few cases occurring below forty years of age in the female, the self- destructive impulse appeared based upon congenital instability or alcoholic indulgence. Dangerous aggressive conduct prevailed in over 52 per cent, of female recurrents, and in 64 per cent, of the males, or an average for both sexes of 57 per cent. Hence, recui-rent insanity embraces a very high ])roportion of in- dividuals dangerous to others — a fact exi)hiined, in like manner, by the large number addicted to vicious habits of life, and especially alcoholic excess. With respect to this morbid impulsiveness, Dr. Sankey, reaffirming witli M. Morel its i-csemblance to epilepsy, writes : — " There is the same periodicity in the cases, the same im- pulsiveness, and the same ignorance or blindness of their own position ; and though the acts of violence are not attended witli any unconsciousness, yet they seem scarcely voluntary." * Amongst * Op. ci(., p. 175. THE CRIMINAL INSANE : HALLUCINATIONS AND DELUSIONS. '■ 21~} this class are comprised many of the criminal community of low mental type, often associated witli a degraded physical conformation. These patients are almost all confirmed drunkards ; spend the greater part of their life between the prison and the asylum; and, in the former, often sham insanity with the object of attaining tlieir removal to an asylum. Here, if not repressed, they would become the tyrants of the community amongst whom they live ; and, in their maniacal attacks, are most dangerously impulsive, reckless of life or limb ; their conduct often i^rompted by the utmost brutality and the most vicious instincts. Beyond the trouble given by the criminal class in an institu- tion where severe repressive measures are to be discouraged, they form a scourge to the younger and more respectable class of patients whose malady is their misfortune, and whose former associations were far different. This social evil is a blot upon our legislature that loudly calls for redress. Hallucinations and Delusions.— Hallucinations prevailed in 22-7 per cent, of the recurrent cases— the visual and aural in about the same proportion, and both associated in a few cases; olfactory hallucinations or illusions were seldom noted, and gustatory were notably absent. Delusions occur in at least half the cases (53 per cent.) Both hallucinatory and delusional states vary with the proximate cause of the outbreak : if alcoholic excess enters largely into the causation, we may anticipate associated ideas of self-importance, rank, power, wealth, and suspicion of perfidy upon the part of those around him. One patient receives a nightly visit from his satanic majesty; another sees imps around him, hears voices beneath the floor — the noise and rumble of machinery, which his morbid imagina- tion frames into some idea of coming torture. Another patient, twentj^-eight years of age, addicted to intemperance in drink, and the subject of a serious cranial injury in youth, calls himself Sir Eoger Tichborne, and accuses his relatives of filling his bedroom with the vapour of chloroform. Another young alcoholic subject owns property "to the value of thousands a year"— has extraordinary muscular power, and can "walk eighty miles a day continuously." Delusions of poisoning are frequent in these alcoholic cases, as are also notions of being deprived of property and rights, or being pur- sued by the messengers of the law. One typical case, aged thirty-eight years, with a history of paternal intemperance and strong collateral insanity (two sisters being insane), himself for years a heavy drinker, developed, upon his third outbreak of insanity, the notion (from certain subjective feelings referred to the chest) that some mysterious clock- work was concealed there, which caused him much agony and deranged his mind. He could scarcely be restrained from injuring himself, 216 PERSISTENT MENTAL INSTADILITY. and often begged to be operated upon witli a view to its removal. He frequently bruised himself seriously over the front of the chest by violent blows of the closed fist. J. B., aged thirty-six, married, a fish-hawker, admitted August, 1S82. Has had no previous attack of insanity. Eight days previously he became maniacal and dangerously aggressive ; was under the constant charge of two men at the work- house, whitlier he had been taken. There he attempted to leap from a window, and struck his forehead with a soda-water bottle, inflicting a severe gash, with suicidal intent. U])on admission he was depressed, heavy, and sluggish, yet sufiBciently calm to give a clear account of himself. His height was ii feet 5 inches ; his weight 124 lbs. ; he was ill nourished, with flabby muscles ; complexion sallow and dirty ; several deeply-incised wounds recently inflicted were observed on fore- head ; expression depressed and torpid. The tongue was not foul, no anorexia, and no functional derangement of the several viscera present. Patient gave a history of excessive drinking for some years past, as also of an attack of delirium tremens; had been drinking quite recently, and "saw all sorts of things about him." Two sisters were insane, but all other antecedents free from neuroses ; his father was a heavy drinker. He admitted being jealous of his wife, whose fidelity he questioned, and he had therefore deserted her and his children. During the first week he remained morbidly depressed, pensive, self-absorbed, and in- active ; rarely spoke, but said he was quite "beside himself" when he cut his forehead; appetite good; "nasty foul objects" surround him; was gloomy. A week later no further illusory or hallucinatory state prevailed ; appeared of nor- mal consciousness, and was shortly afterwards employed for a time at work, and discharged. The next occasion upon which we hear of him was in December, 18S4, about two years following his discharge. During the interval he had gone to America, resumed his drinking habits, and was soon an inmate of the Trenton Asylum. When re-admitted here, he had developed typical delusional notions; declared that some clockwork machinery was within his chest — the movements were incessant, caused him great suffering, and allowed him no rest ; felt impelled to commit suicide. The voice of a man also was heard speaking to him from within his body. He was irritable, violent, dangerously suicidal, and his language abusive and blasphemous. He describes the "clock" in his chest as causing sensations like "a chopping machine ;" it feels as if it would "rive his heart out:" begs to have a surgical operation performed iijion his chest, that "the machinery may be cut out ;" and he points to several recent bruises over the manubrium inflicted by his clenched fist to relieve the anguish he feels. Believes certain men have placed the " clockwork" there to make him jump and dance about whenever they choose. He became much agitated and excited during this narration ; talked hurriedly and incoherently. He had increased in weight ; his tongue was clean and steady ; there were notwitchings of facial muscles or labial tremor ; articulation was unim- paired ; pupils were normal in size and reaction ; bodily functions all well performed. For two months he continued to exhibit the symptoms above described, was alwaj's excitable, s])oke in a hurried flow of words, but was coherent ; he proved friendly in his di.'^position to those around him, took much interest in his domestic employments, and was fairly cheerful. Mt/i February, 1885. — A relapse occurred at this date ; the delusion became ALCOHOLIC RECURRENTS : PROGNOSIS. 217 again more prominent, and he repeatedly threatened to cut his throat. For the subjective anomalies leeches were applied to the manubrium, but without result. Bromide and chloral were then given with very considerable benefit ; the pain gradually subsided ; his sleep was ensured at night ; and by tlie 30th of March he declared himself free from any morbid sensations, had lost his delusional notions, was quite rational in converse, and left the asj'lum. In one month later he again became an inmate, suffering from his fourth attack of mania-a-potu. His delusional state was similar in nature to that above noted. The "clockwork" still drives him frantic; he must cut open his own chest and remove it, or will "split open the chest of some ooe else ;" he will "murder those who persecute him." Says he went home, worked steadily, and remained quite well, abstaining from drink for two weeks, and then the terrible feehngs in his chest began again, causing sharp lancinating pains, which had " the power of arresting his breathing, and caused agony even to his finger-tips." He strikes himself violently upon the chest in sheer despair, and is much bruised over the sternum. Threatens to take his own life unless relieved by some operation ; is very excitable, garrulous, circumlocutory, irate. He took liquor opii with sjiiritus aitheris sulph. (aa mins. xv.) twice daily. During the first fortnight he derived relief from the opiate, but continued to exhibit mild maniacal excitement ; was very garrulous, easily upset, and became passionate when talking of his morbid sensations. He remained very deluded, and about this time, having secured a knife, he retired to a. closet, and inflicted a deep incised wound down the front of the chest over the sternum ere he was detected. Chloral and bromide (aa grs. xxx. ) were substituted for the opiate twice daily ; steady improvement took place — he lost his painful sensations, but upon retrospect he still affirmed the reality of the diabolical machinery which had been introduced into his chest. A few weeks later he was finally discharged as recovered. PPOg'nOSiS. — A large pi'oportion of the recurrent insane who enter our asylums after successive attacks of insanity become chronic inmates, or are discharged as partial cures only, or the disease proves fatal. Considerable disparity, however, appeal's to be maintained between the rate of recovery amongst the male and the female residents; the former range as high as 714 per cent, of the total number, the latter 57*5 per cent. If we group together as " unfavourable cases " all partial recoveries, deaths, and chronic remnants of the recurrent female class, we find these amount to 40 out of a total of 100 cases. We find that of the "relieved," the deaths, and the "remaining," only 10 cases of the 40 wex'e under forty years of age, the melancholic form which prevails beyond this age being a far less recoverable form of insanity than the acute excitement of earlier life. One most unfavourable aspect of recurrent insanity, therefore, is that of a recurrence at the period of forty and upwards ; in fact, if we fail to break through the periodicity established in our patients' morbid tendencies, before this age, the outlook is very ominous — the lucid intervals between their attacks become of shorter duration, and the mental stability at their best moments so insecure, that in impulsive forms it becomes imperative to keep them under continuous super- 218 PEnSISTKNT MENTAL INSTAI5ILITV. vision. The period of calm between the attacks is not only more uncertain in its duration, but there is now betrayed a steadily advancing mental enfeeblement ; and, as dementia deepens, so do the attacks of excitement or depression become more frequent and more prolonged ; yet, even in these advanced cases, the periodicity of the disease is maintained. Dr. Blaudford cites the case of a man of more than eighty years of age, who came under his observation, whose first attack happened wlien lie was seventeen, and who had Vjeen placed under supervision for recurrent attacks three-and-thirty times.* A patient at the "West Hiding Asylum between the age of thirty-two and forty-two had an attack almost every year, nine in fact ; between each of which she was dischai'ged, and resumed her household duties with energy and ability, manifesting no intellectual impairment or emotional instability. In another case— a mai'ried woman, addicted to heavy drinking, had her first attack at the age of thirtj'-five, and from this period through the whole of the climacteric, was subject to repeated attacks of maniacal excitement of a wild, boisterous, and dangerous nature, with obscene and most objectionable behaviour. In her case, asylum supervision was required on ten occasions up to the age of sixty years ; but, for several other attacks of excitement, she was treated at home and recovered. In yet another instance, a young girl of congenitally weak moral control sutfered from three successive attacks, with complete lucid intervals, between the ages of seventeen and nineteen ; she returned home and resumed her duties in the intervals of her attacks. Three further attacks occurred up to the age of twenty -four years, when her mental equilibrium was so far unsteadied that she continues, up to the present time (a pei'iod of two years), an inmate of our wards. During this latter residence she has had repeated attacks of excitement, and her periods of calm are now greatly broken by hysteric symptoms, in which erotic manifestations are prominent. In her case, also, diurnal calm often alternates with nocturnal restlessness, gentle excitement, and garrulity. "The disorder, once set up in the individuars constitution, is prone to recur, and we must examine the whole question of the periodicity of disease, as well as the conditions of the first attack, before we can hope to throw any light upon the subject. This much we may conclude, that the conditions which precede the first are not necessary to subsequent attacks; that as epileptic seizures may continue after the ostensible cause of the first fit is removed — e.rf., worms, so the disorder once recurrmg may repeat itself, persistently remaining as a vice of the constitu- tion of the individual, of which it now forms a portion " {Bla7id/ord)f. * Insanity and its Treatment, p. "1. + Oj). cit., p. 72. PROGNOSIS IN HIX'UimENT INSANITV. *2l9 "Witli this statement of Dr. Blaiidfoi'd we fully agi-oe, so long as it is inulerstood that the conditions of the first attack, to whicli he. alludes, are environincj, and not organised, conditions ; for it is all- important to bear in mind that a very large proportion of the cases exhibit a powerful hereditary predisposition to insanity, and that we always ftiil to elicit to the full extent from the most careful enquiries the magnitude and importance of inherited neurotic conditions. Yet out of the 136 persons who were subject to recurrent seizures, permitting them to return to their homes in the intervals of their attacks, we found very definite and undoubted evidence of inherited insanity, of other neuroses, or a history of parental intemperance, or of severe cranial injury in seventy individuals (51-4 per cent.) If, therefore, in one-half tYie cases such powerful predisposing factors be found, any one familiar with statistical research in this direction will add a wide margin for similar agencies in other cases not divulged, too remote for detection, or in patients whose antecedents are utterly unknown, as so often occurs in the class with which we deal at large pauper institu- tions. If we now group together promiscuously all the recurrent individuals of our past ten years' expei'ience at the West Riding Asylum, we may construct from their histories a chart of recoveries, such as is given on Plate 6". A steady increase occurs in the number of recoveries up to the sixth month, when a climax is reached — fifty -four of the total 105 cases of recovery (or 167 total cases under treatment) having been discharged. One-half the recoverable cases, therefore, are well by the sixth month ; a notable fall occurs between the seventh and eighth months, with a slight rise of seven cases at the ninth month, again to decline to the level of one or two cases monthly until the thirteenth month, after which the recoveries are few and distant— (?.(/., one at twenty months, one at two years, and one at six years. The recovery line for the men diflTers from that of the women in attaining the climax two months later ; the largest proportion of cures for female recurrents (seventeen) ta,king place during the fourth month of their attack, and steadily declining to the seventh ; whilst the maximum of male recoveries (twenty -six) occui's at the sixth month, dropping suddenly to one case for the seventh and eighth months. Of the females, whose recovery was protracted beyond the ninth month, all without exception were above forty years of age, had suffered from several previous attacks, or were subjects of congenital mental defect. Treatment. — When considering the etiology of recurrent forms of insanity, we emphasised the hereditariness of the affection, and the unstable, defective, mental organisation of the subject. We regard the indulgence in alcoholic stimulants as having, perhaps, a more fatal effect 220 PERSISTENT MENTAL INSTABILITY. upon the subjects of this, than of those of any other form of insanity. Alcoholic treiitment here is decidedly most pernicious. In fact, all forms of the explosive neuroses do better without any alcohol — even when their disease does not appear to have been engendered by undue indulgence in stimulants. We often tind that the subject craves for alcohol, and also for all sorts of mental excitation ; but these must be withheld wherever they tend to induce the least emotional instability. Our sheet-anchor in the treatment of these affections is much outdoor exercise, with active manual employment for both sexes, long walks, cheerful society, and avoidance of association with the more excitable chronic lunatics. With this there should be given a liberal, whole- some dietary. By some authorities it has been considered well to limit the meat-diet, and to add largely to the farinaceous and vege- table constituents of the food — a suggestion which applies also to the epileptic and other convulsive neuroses. We do not ourselves regard the question of the advisability of a farinaceous diet as conclusively proved in the case of the convulsive neuroses ; the most important attempt to practically test the question in epilepsy, was recorded by Dr. Merson, in the " West Riding Asylum Medical Repoi'ts for 1875," the result being in the main favourable to this dietary, but based upon too limited a number of instances to warrant final acceptance. Bromide of potassium, in combination with Indian hemp (30 grains of the former to a fluid drachm of the tincture), is the best remedy for the states of acute excitement. The patient's appetite is never pre- judicially aflfected by it. In most cases of this class they take food more readily with, than without, this treatment. The exaltation of the sexual instincts, which so often characterises these recurrent seizures, renders iron and the compound phosphates inad- missible in many cases. In most adolescents the recurrent attacks are best met by bromides alone, careful attention to the bowels, regular exercise, the spinal douche, followed by friction of the surface; and, if there be much insomnia, an occasional chloral draught. The phosphatic preparations, with cod-liver oil, may, however, be given with benefit in the recurrent attacks of melancholia incident to the climacteric, and the bromide of potassium, in combination with the perchloride of iron is often advantageously ])rescribed. Chart A CH INSAN ART of RECOVERIES, ITY AT THE CLIMACTERIC. Number of 7 Cases \\ l\ / A j\ 7 A / / \ / V A / v. Duration pr Attack 4» 6,v. 2m. 5 4 5 6 7 8 9 10 II 12 ij 1+ 15 16 19 20 2y 4y ,, , r CHART |of RECOVERIES in RECURRENT FORMS of INSANITY. (167 Cases.) Cases, 10 % \ • / A \ 1 /\ / \ J A /\ v' \ '/ / V X '"{ \ n\ /■^ \ ■'" V \ Duration of Attack up to ,... 6.1 2« i 4 5 e 7 8 9 10 II 12 15 14- 15 18 2/ 3/ 5/ Note- Black J.inc MALE Jtecitmnbi 67 Caa, FEMALE . 700 . ANALYSIS OF RESULTS. Recovered RelievetJ Died Chronic Male 4-6 1+3 4. Female 5 9 15 8 18 221 EPILEPTIC INSANITY. Contents: — Pefiiiition — Eiiileiitic Neurosis — Immediate and Eemote Kesults of Epileptic Discharge — Diffusiou-curreuts -- Nascent Nerve-tracts — iJiscliarKc from Sensory Areas— The Aura in Sensory Epilepsies— Epileptic Amaurosis, Hemianopsia and Hemiansesthesia— Ciiaiiii)ing Movements— Pre-paroxysmal Stage— Premonitory Sta^e — Special Sense Aurae-Vaso motor and Visceral Aur:e— The Epileptic Paroxysm — Grand and Petit Mai— Post-jiaroxysmal Period— Post-epileptic Automatism — Case of E. C— Status Epilepticus- Inter- paroxysmal Stage— Epileptic Hypochondriasis, Automatism and Impulsiveness — Medico-legal Relationships — Impulse— Delusion --Malingering— Peg. v. Taylor —Treatment of Epileptic Insanity. By epileptic insanity we mean that form of mental derangement in the antecedent history, oncome, and further deveh:)pment of which we recognise an intimate connection with the epileptic neurosis. Such functional disturbances of the nervous mechanism as issue in what are termed epilepsies may, or may not, have for their accompaniment serious mental derangement. Epileptic fits may continue for years with slight, or scarcely appreciable, mental disturbance. If, however, the epileptic neurosis presents on the psychical side a parallel disorder of mind, we speak of -it as epileptic insanity. Epilepsies may develop during the course of other cerebral diseases associated with insanity as pure accidents, or as an intercurrent affection, in chronic disorganisa- tion of the brain, in softening from embolism or thrombosis, in senile atrophy and decay, during the progress of general paralysis of the insane, or in certain cases of chronic insanity, the epilepsy then being merely an accidental complication of the primary affection, and depen- dent, probably, in part upon the direction taken by the disease. Nor can it be questioned that epilepsy may arise as an independent and intercurrent disturbance in subjects mentally afilicted, having no direct connection with the primary cerebral derangement, and it becomes therefore imperative that we learn to recognise such morbid linea- ments, so to speak, in the mental affection as indicate its kinship to an epileptic neurosis. The niental derangement of the epileptic may assume the form of maniacal excitement, of melancholic depression, of mental enfeeble- ment or dementia, or of delusional perversion or perversions of the moral being ; any one or more of these states may be revealed by the patient. As in all cases of insanity alike, so epileptic insanity notably presents periods of heightened functional commotion, with intervals of comparative calm, periods of sudden and excessive, though transient, dissolutions, and the persistent impairment due to a consta,ntly advancing, though gradual, dissolution. The immediate results of an epileptic discharge are seen in the deep reductions of epileptic mania — a transient condition only; the ultimate results of repeated attacks in the gradual and persistent impairment of 009 KPILEPTIC INSANITY. tlie mental faculties seen in epileptic dementia. Hence, in studying epileptic insanity, -sve have to consider the acute symptoms or immediate after-etlects of a tit, as well as the chronic impairment presented during the intervening periods between the attacks. It is not, as before stated, everrj form of epilepsy which is prone to issue in mental derangement, if by epilepsy we mean what Dr. Hughlings- Jackson means; that is — "A sudden, rapid, excessive, occasional, and local discharge of cerebral cortex." * It is when the functional disturbance occurs in the highest nervous arrangements of the cerebral cortex ("the substrata of conscious- ness ") that the mind is prone to suffer. An all-important principle which the same authority has taught us to recognise is that, in these epileptic seizures, there is a brutal expenditure of force wholly (jut of proportion to the normal physiological outlay, and wholly inconsistent with continued healthy activity of the parts concerned. So severe is the explosive violence, that the nervous tracts traversed by the storm are so damaged as to be rendered transiently incapacitated for the further conduction of the nerve current, and the centre itself is paralysed for the time by its enormous expenditure of energy. If we attend carefully to this fact, it will be apparent to us that the transient paralysis of the motor centres and ner^•es is not the only or most important sequel of the seizure. We are aware that every vivid mental rehearsal initiatory of an act (especially when the action is itself suppressed) is attended by diffusion currents, which, according to the physiological law of least resistance, affect first the smallest mus- culature, e.g., the eyeball and facial muscles; and even when these results are not apparent, expend themselves along intra-cerebral tracts, arous- ing sensory excitations and correlated feelings. Just as the substrata of these representative states affect cortical realms other than those in which the primary excitation arises, so likewise, during the accom- plishment of every volition, the act is accompanied by so-called associated actions {e.g., the associated contraction of pupil and conver- gence of eyeball), and this series of associated movements is a very large one in the active manifestations of the organism. But this is not all. We know that both the initiatory energising of the cortex and its eventual actualisation are attended by numerous complex feelings, such as a memory of similar acts previously performed, of their results, and of the notion of the utility of the act to the " individual's" welfare. All this means, of course, diffusion currents around the primary discharging centre. If, then, all energising and discharging of motor centres be accom- panied by such effects in related c/him Heports, vol. iii., p. 331. EFFECTS OF DIFFUSED CURRENTS. 223 ' effect when the motor areas are overfloocled by the brutal explosiveness of epileptic discharges. We shall then have not only the paralysis of the conducting tracts, but also a dangerous flooding of those delicate, yet indefinitely extended, tracts of intra-cortical nerve-tissue, upon which the very evolution of the nervous structure depends. If we place any credence whatsoever in the theory of nerve-genesis so elaborately worked out by Herbert Spencer, we must regard this undue foPCing" of nascent nerve-tracts, as yet incomplete in their formation, as a most serious matter in epilepsy. It is important to observe that any one part of the cerebral cortex may be the site of an epileptic discharge ; and hence, the resultant phenomena will be co-extensive with the multiplicity of cerebral functions, and as varied in their nature as tliey are varied. Discharges in motor realms will thus afford endlessly diversified combinations and sequences of spasms, whilst discharges from sensory realms will like- wise implicate correspondingly complex centres. The former are open to objective study ; the latter, as being purely subjective, can only be gleaned by information given us by the patient. Again, local dis- charges initiated in motor realms may spread to other motor areas, or, from being of hemispheric origin, may become bilateral in their distribution, oi', spreading backwards into sensory realms and the highest and most complex of centres, issue in loss of consciousness. As regards this implication of consciousness, "all depends on the momentum of the discharge, and, therefore, on how far it spreads " {II iighlings- Jackson).* In like manner may arise pure sensory epilejD- sies, with, or without, loss of consciousness in the full acceptation of the phrase; or a j)rimary sensory epilepsy may spread into more purely motor realms, and issue in general convulsion, the discharge, as it were, being reflected on to the motor sphere. We thus see how infinitely varied may be the resultant of epileptic discharge from any unstable area of cortex. In unilaterally commencing convulsions, viz., those due to local discharges in one hemisphere, we can usually trace the spread of the discharge with facility ; this is, however, not the case with the epileptic seizures associated with insanity. Here we more frequently observe attacks of petit mal, or else that form of g'rand mal, in which the loss of consciousness is early and comjjlete, and the spread of the dischai'ge so rapidly general that the whole body is almost simultaneously affected by the convulsion. This rapid run- down of mechanism, comparable to the rupture of the mainsj^ring of a watch, renders it impossible in most cases to distinguish any sequence, in the resulting spasms. It is truly a universal spasm, ov, to use Dr. Hughlings-Jackson's vigorous phi^ase, " a clotted mass of movements." * Loc. ell., p. 2GS. 224 EPILEPTIC INSANITY. In like manner consciousness is then lost at so early a period, and this so suddenly that the patient falls instantly, as though struck senseless by a blow. The discharge from seiisori/ areas cannot, from the very nature of the case, be followed ; we can only learn the existence of an aura by the subsequent statements of the jjatient ; but — impressed only by the results of the motor discharges — we must not lose sight of tlie fact, tliat equally powerful discharges, of whicli we see no result, may pass along sensory areas at the jieriod when consciousness is abolished. Undoubtedly the muscular spasms ai-e likely to attract to themselves undue attention on the student's jiart ; and he forgets for the time that still more noxious effects ai'e being produced in the areas of mental and sensorial activity silently and concealed from his view. It is, thei'efore, all the more important that one should keep these unseen results in mind, and watch carefully for such evidence as may arise of the implication of the sensory portion of the brain, for such evidence is forthcoming at certain stages of the affection. It is very obvious that amongst a large number of epileptics in our asylums who suffer from mental dei'angement, there is very great divergence in the history and progress of their affection — the pheno- mena of their disease by no means pi'esent a dead uniform level. Some remain inmates for very many years with the intellect but little impaired, and then only at those periods when they become subjects of epileptic seizures ; others (with few, if any, convulsive attacks) betray at long intervals periods of depression, of moroseness, or of excitement, during which they are more or less irresponsible for their actions ; yet, in the interim, they ai-e perfectly rational, cheerful, amiable, considerate for others, and obliging. In others again, the mind becomes rapidly enfeebled ; and during the period of their "fits" the reductions are so profound that absolute dementia and stupor, or perhaps wild ungovernable fury, prevail. And, yet again, with but little essential difference in the motor disturbance of two cases, the wreck of mind in the one may stand out in strange contrast with the clearness of intellect in the other. The resulting dementia therefore (so-called "effects of the fits") varies very con- siderably in degree, so that each individual case may be unlike the others in this respect; and this is undoubtedly dependent upon the varying seat of the primary discharge from the cortex. To quote Dr. Hughlings-Jackson — " From this it follows that there is, scientifi- cally sjjeaking, no entity to be called epilepsy ; but innumerable different epilej^sies as there are innumerable seats of discharging lesions. And as the first symptoms in the paroxysm is the first effect of the discharge of the centre unstable, any two paroxysms beginning SENSORY EPILEPSIES. 225 differently will differ throughout, liowever little."* From all this it becomes sufficiently obvious that we must not rest satisfied with a mere observation of tlio motor discharge exemplified by the convulsive seizure ; but, we must likewise question our patient closely upon his sensations and mental disturbance immediately preceding the loss of consciousness, and observe closely his condition as presented after the paroxysm and up to the full re-establishment of conscious activity. What are some of these indications of discharges in sensory realms ? A patient at the West Riding Asylum after each severe attack of fits becomes completely blind, and gx'opes about on hands and knees — epileptic amaurosis is, however, an infrequent effect of this disease. Another epileptic becomes hemianoesthetic on the left side of the body after certain convulsive seizures ; and this anaesthesia is attended with a corresponding state of the retinal fields ; there is left homonymous hemianopsia, associated also with impairment of the other special senses of the same side. Indications of discharges in sensory realms are afforded during this stage of re-energising, by the champing movements of the jaws, with corresponding movements of the tongue, probably indicative, as has been stated by Terrier, of dis- charges from the centre for taste, the movements being thus reflexly induced. The rubbing of the hands together — the attention of the patient evidently being attracted thereto — probably means that morbid sensations are referred to those parts, A very frequent action amongst such patients is the rubbing of the open hand iipon the knees, or the slapping of their thighs with the palm of the hand. We must, however, be careful to avoid arriving prematurely at a decision, that this is due to discharges in sensory realms, initiating the movement ; it certainly may be due to a more complex mental state. Thus one intelligent patient explained this action, of which he seemed conscious, by saying, that he did it because he thought he could " bring himself by this means more rapidly out of the fit." Discharges from the substrata of visual sensori-motor areas of the cortex will often be indicated in fantastic movements of the hands, as though the patient were dis- entangling imaginary skeins of thread in the air. Other subjects, and these are by no means infrequent, appear to be following imaginary objects on the floor, or peer in some one direction; or again scrutinise with incessant vigilance the floor and furniture around them, as though searching for some lost object. With all this there may be considerable motor automatism ; the subject may climb upon tables or the window-sills still seai'ching apparently for some object; or he may remove his coat, turn out the contents of his pocket, &c. One of our patients invariably after his fit empties his pockets on the * Loc. ciL, p. 270. 15 226 EPILEPTIC IN'SAXITV. table, secures his \n\)o, and placing it (althougli empty) in liis moutli, marches to and fro witli a self-satisfied look and contented mien. All cases of epileptic insanity should be rigidly studied with a view to (1) eliciting the condition of mind immediately preceding an attack ; (2) the essential features of the epileptic seizures; (3) the subsequent period of reinstatement of consciousness ; (4) and lastly, the mental state prevailing in the period intervening between the " fits." We, therefoi'e, divide our remarks under the headings of — Firstly, the preparoxysmal stage; secondly, a premonitory stage (often absent); thirdly, the paroxysmal stage ; fourthly, a post-paroxysmal stage ; fifthly, the interparoxysmal period. 1. The Preparoxysmal Stag"e. — The epileptic insane are especially prone to exhibit indications of an approaching seizure ; nor is this surprising, when we recall how slight departures from the normal state of healthy cerebral nutrition, betray themselves in all our sub- jective feelings and moods. The grave nutritional anomalies upon which an explosive neurosis depends, might well be expected to declare its advent thus — subject, of course, to the special site of nutritional derangement. A change in character is thus frequently recognised during a period of hours or even days antecedent to a seizure. An able and intelligent attendant will so study his cases, that he at once detects the little minor changes in the patient's disposition, indulges his whims, endeavours to sooth his morbid irritability, and especially guards the subject at this period from unnecessary annoyances. Thus, we frequently hear excuse made for some patient's lapses of temper, or unseemly behaviour, "Oh, he's just going to have his fits, sir, he will then be all right." In asylum life, amongst the intelligent class of nurses, the fact is uniA'ersally recognised that a premonitory stage of great irritability is often seen, and the effect of a convulsive attack will be to clear up the mental atmosphere. The mental disturbance thus preceding the epileptic paroxysm pre- sents very variable features — (1) melancholic gloom and despondency may prevail; (2) hypochondi'iacal perversions, which may haA'e been persistent during the[patient's interparoxysmal stage, may now become exaggerated and intensified ; (3) restless, objectless wandering may indicate the uneasy discontented mind ; and the subject may complain of this unrest, of being unable to follow his usual occupation, incapable of keeping his mind upon any subject long together; he cannot read; his sleep fails him ; he becomes indifferent to his meals and inattentive to his wants generally ; (4) a vague dread of impending evil is occa- sionally expressed ; but this] is moi'e frequent as a genuine aui'a — a psychical state, the immediate accompaniment of the commencing epileptic discharge ; ^(5) joyous elation may precede an attack, a Tirn; aura epilkptica. 227 goiionil slatn of optimism l)o pi'csont, often associated, liowevei", with gross egoistical sentiments; (6) confusion of ideas, diminislied. vigour of attention and memory are also peculiar to this stage ; this is the first symptom, for instance, betrayed by an epileptic compositor employed at this asylum ; with him there is also at this time a notable degree of irritability and irrepressible garrulity ; (7) delusions of suspicion are a pi'ominent feature before epileptic seizures in certain of the insane, and may form the incitants to acts of dangerous or homicidal violence. An inmate of the West Riding Asyhim almost invariably betrays to his attendant this state of mind ; he stalks up and down the wards, assumes a defiant attitude and bearing to all around, keeps a vigilant eye upon each passer-by ; and occasionally beckoning the attendant, reveals to him privately the existence of an imaginary conspiracy to poison him. This patient wholly ignores the fact that he has fits^"Oh, they say I take fits, you know" (with an incredulous smile), "but, I know what ails me;" and then with a mysterioiis air — "Wliat they put m my food and medicine explains everything." At times he openly accuses the doctors of drugging his food and drink, and always in the stage precedlnr) convulsion. In this preparoxysmal stage, depression always prevails ; the convulsive seizure occurs, and as the attendant emphatically and truthfully asserts — " he is then a new man." This patient also believes he can ward off the effects of the poison hj drinking his own urine, which he has been detected doing on more than one occasion, and with this avowed object in view. 2. PpemonitOPy Stag'e. — This is not truly a stage, but the first period of the paroxysm itself; yet it is convenient to consider it separately in accordance with the old notion of the phenomena, the so-called warnings or aUPSB. In fact, the phenomena embraced by this period, the epileptic aura, are but the subjective aspects of the nervous discharges in cortical centres, the initiatoiy symptoms preceding that loss of consciousness which leaves the remainder of the convulsive paroxysm minus a positive mental counterpart. For it must be remembered that in all these excessive discharges along highly specialised sensori-motor mechanisms the subjective phases are of but ti'ansient duration, only during the earliest peiiod of the attack ; the objective are obtrusively present, but from the early failure of con- sciousness have no mental correlate. Since, however, the epileptic aura constitutes the earliest symptom of the actual discharge, when correlated with the physical accompaniments of the attack, it facilitates our comprehension of cerebral activity, and the parallel series of psychical manifestations. To the student of psychology it is of intense interest, and should be studied with the greatest care. And, in the first place, since any of the regions of the cerebral cortex (which are the anatomical substrata for all forms of conscious activity) may be the site whence an epileptic discharge originates, so the 228 EPILEPTIC INSANITY. phenomena of an aura may be co-extensive witli all forms of sensation whatsoever, and may even be constituted Ijy more elaborate foi-ms of psycliical activity. The sensation constitutinf,' an aura is, therefore, referred to any portion of the environment, includin;^ in the latter term the body and its organs generally. We tlms may get aurce of — (1) the special senses; (2) of the visceral or organic sensations; and (3) intellectual or psychical aura?. A few remarks on these sensations will render the subject clearer : — («.) Special-Sense Aurse. — It must be remembered that in the five special senses — taste, smell, touch, hearing, and sight, we have an ascending scale of sensations entering more and more intimately into connection with our intellectual life. TastC and smell have the least intellectual element, and are specially characterised by their slight recoverability in idea, i.e., in persistence or capability of being recalled in the absence of the object; although both are capaljle of much improveability by education {Bain). On the other hand, tOUCh is a much more intellectual sense, highly discriminative as to locality, and capable, in conjunction with other senses (and especially the muscular sense), of giving iis ideas of the form, dimensions, and position of objects in general ; its essential intellectual factor is dependent on the conjoint agency of the muscular sense {Bain). Hearing" and sight attain the maximum as regards intellectuality ; are highly co-operative ; exquisitely discriminative in their powers ; highly persistent and recoverable; as well as capable of almost unlimited education. Sig"!!! is, of all the senses, pre-eminently characterised by the faculty of objectivising, and in fact enters much the most largely as an ingredient into the constitution of object-consciousness. On the other hand, at the further end of the scale, the sense of taste and of smell (and still more notably the sensations of organic life) are characterised by their inherent subjectivity, or the greater difficulty experienced by us in discriminating between subject and object. The drift of these remai-ks will be at once apparent to the student when he considers that the least discriminating and most subjective of these series of sensations (the organic or visceral, and taste and smell) have least connection Avith the intellectual operations of the mind ; the most discriminating and most objectivising (the high or special senses) have intimate connection with the intellectual operations, and that, therefore, aurse, consisting of the former sensations, must be referred to the implication of the substrata of the crude sensations of organic life, and the emotions — those of the latter — to the substrata of the highest activities of the mind, although they also enter into the emotional life of the being. Organic Sensations. — The innumerable impressions which must OR(iANIC AND SPECIAL-SENSE AUR^E. 229 arise momentarily and co-instantaneously throughout the organism during the healthy activity of all its tissues, its muscles, bony frame- work, viscera, and vascular appaivitus form in their aggregate what are termed the sensations of org'anic life. Many of these, such as the visceral and vascular, have phases of " unfelt " sensations, or, at least, sensations not discriminated from the vast mass of sensations created by the functional activity of the body at large, with periods of emphatic expression — e.g., hunger and thirst. The " unfelt " sensations, however, rise into prominence in morbid states of the system, and we then get those intensified organic sensations, which cause much discomfort and contrast with the normal massive feeling of hien-etre. In the epileptic, likewise, we get such sensations aroused in the organic aurse ; they are distinguished by the massive and all-pervading character of the sensation. We may take Professor Bain's classification * as embi'acing these sensations of organic life, which are thus liable to derange- ment : — Sensations arising from (1) Muscles. (4) Organs of circulation. (2) Bones and ligaments. (5) ,, respiration. (3) Nerves and nerve centres. (6) ,, digestion. To which we may add those of the uriuo-genitoiy apparatus. Visual Aurce. — These occasionally precede the seizure in epileptic insanity, but, as pointed out years since by Sir Crichton-Browne, aurse are not of frequent occurrence amongst this class of epileptics, f When they do occur, the visual aurse consist usually of crude sensa- tions, balls of fire, coloured light, glittering sparks, &c.; thus G.M. sees a number of sparkling stars before his eyes, all around " looks dim ; " and if he holds a book in his hand, ere it falls " the letters all run into one another." W.B. has a warning described as a doubling of objects around him, as if by " cross sight," meaning that he supposed it was due to a transient squint. E-ed and blue are the colours more frequently seen in these visual aura3 {Goicers). Auditory Warnings. — These are less frequent than the visual ; but are occasionally met with in elaborate form, as in the case of E. C. Dr. E-oss speaks of hissing, singing, or explosive noises ; of a noise in the ears, followed by vocal utterances, in some cases of ordinary epilepsy | (p. 919). Dr. Gowers speaks of a crash, a whizz, a hiss, or whistle ; or on the other hand, a loss of hearing, strange stillness preceding the loss of consciousness. These are rarely recognised in asylum epileptics. * The Senses and Intellect, Alexander Bain — " Sensations of Organic Life." + West Biding Asylum Medical Bepoi'ts, vol. iii., p. IGO. J Quoted by Dr. Hughlings- Jackson, p. 303. :230 KPILKPTIC IXSANIXy. Consciousness, as a rule (p. G84), is in thorn too early lost f(jr these phenomena to occur. Gustatory and Olfactory Aura. — These are the least frequent form of aunu met with in epileptic insanity. In the patient J. V. the con- vulsive seizures were invariably preceded by such affections of the sense of taste as would justify us in regarding them as gustatory aurae. The intimate connection, between the sense of taste and that of smell renders the differentiation between hallucinations of these senses dubious, and at times impracticable. We must carefully exclude the instances of perverted sensibility which so frequently engender sense illusions in the epileptic subject, giving rise to delusions of being fed upon human flesh, or similar revolting notions. Vaso-JIotor Aurce. — This form is exemplified in the case of a patient whose fits are always preceded by unilateral vaso-motor disturbance — marked mottling of the skin of the palm, associated with morbid sensa- tions ; the patient invariably opens the hand and inspects it critically, turning it over and over again, and feeling the skin with the fingers of the other hand. Consciousness is then lost, and the arm so affected becomes convulsed. (b.) Visceral or Org'aniC Aurse. — These are the more prevalent sensations recognised in epilepsy, as stated by Sir Crichton-Browne.* The feeling is one of weight at the epigastrium, or a fulness or disten- tion of this region. This feeling often rises to the throat, causing a sense of great discomfort — the patient beginning to pull at his collar or necktie as if to loosen it. Occasionally, the sensation creeps up to the head, becoming, as one patient described it to me, " an expansion or swelling of the head — an opening and a shutting." Again, the epi- gastric sensation may be one of actual pain, which remains until consciousness is lost. Another very frequent symptom of the onset is that of a sinking or of actual j)ain in the pra^cordia, or violent palpitation of the heart. A feeling, identical with the globus hystericus, is also very frequently observed in epileptic insanity (Goioers). All these aura?, it will be noted, are referi'ible to a centric disturbance of the vagus and spinal accessory. 3. The Epileptic Paroxysm. — This paroxysm may be charac- terised by the predominance of the mental or motorial implication — that is, we may have transient, though complete, loss of consciousness, with little or no spasm ; or the general convulsions may be the pro- minent feature, accompanied by early or later loss of consciousness ; and since every shade of interblending of such phenomena may occur in difterent subjects, so no shai-p line of demarcation can be drawn between the two extreme limits. Classically, and for convenience of * Loc. cit. GRAND MAL — PETIT MAL. 231 description, we recognise the two forms, called respectively le grand mal :in(l le petit mal. («.) Grand Mal. — An aura may or may not precede, and the patient, if standing, may, without any warning, stagger to a seat, or fall suddenly down on the face or back, often seriously injuring him- self There may be the " epileptic cry," which is very frequent amongst the epileptic insane. It may consist in a subdued plaintive wail, or a loud, wild scream, or a succession of piercing shrieks, as though the subject were actuated by terror j at times it is a mere hoarse gurgling in the throat, or a loud, prolonged groan ; all probably due to the sudden forcible expulsion of air through a constricted glottis during the tonic spasms. The face is now deadly pale, the pupils dilate widely, and consciousness is completely lost. The convulsions beginning by tonic spasm, usually cause conjugate deviation of the head and eyes to one side, to which the body tends to roll ; the spasm is usually more marked on one side of the body than the other ; the chest is fixed, and respiration being arrested, the face becomes now injected and livid— the tongue, congested and swollen, is often forcibly protruded from between the teeth, the veins of the neck are swollen and rigid, and intense cyanosis prevails. The position of body and limbs will vary much in each individual case, depending upon the origin of the centric discharge, its strength and spread to collateral parts. Flexion and extension may be combined in different limbs — or flexion prevail throughout — the body being drawn up into a state of emprosthotonos. In the latter case the patient, if sitting or standing, almost invariably falls forwards ; at other times the head is strongly drawn backwards, or backwards and to one side, so that the subject is twisted round in his chair as if looking over his shoulder. The tonic spasm now gives way very gradually to clonic convulsions — froth foams from the mouth, often tinged with blood, the tongue having been caught between the teeth and bitten by closure of the jaw ; the fine vibratory character of the movement becomes coarser and broken up into rapid rhythmic movements, which eventually are large, inter- rupted, and cease entirely after a few irregular shock-like jerks of the limbs. The clonic spasms last from half a minute to two minutes, and after this cessation the patient lies stupefied and breathing stertorously. This, the third period of the fit, is very variable in duration, lasting from a few minutes to as many hours. There is a gradual return of normal breathing; sensibility and motor power are regained, and, with the exception of some heaviness and a dazed feeling, the previous condition of the patient may appear perfectly re-established. (b.) Petit Mal. — In these attacks there may be nothing observed beyond momentary loss of consciousness and pallor of face. The 232 EPILEPTIC INSANITY. patient may be sitting or standing during the attack ; he does not fall. He may drop what he holds in liis hands, or be suddenly arrested in movement, but may instantly recover liimself, and act as if notliing unusual had occurred. Esquirol ^-elates the case of a lady equestrian who liad frequent attacks of petit mal when on horseback, yet never fell ofi'. There was momentary arrest in her conversation, the bridle dropped irom her hand, but, in a few seconds, she had recovered and iinislied the sentence interrupted by the attack. Very often the face, subsequent to pallor, becomes flushed (Gowers). In these slight seizures there may be slight facial spasm — the expression is momentarily y?a;ec^; or a spasm of the hand may occur, or a more noticeable (but limited) convulsion of very transient duration. One of the premonitory aurce, before noted, with some vertigo and reeling, may constitute such an attack. A patient may be subject to such attacks for years without a single seizure of grand mal occurring, or these two forms of epilepsy may occur indifferently, now one and now another, in the same subject — or attacks oi grand onal interspersed with the minor attack, may gradually predominate and eventually wholly replace the j^^tit mal. Thus one of our patients at the West Riding Asylum, subject to such seizures, was, while sitting up in bed one morning, requested to write his reply to a question ; he wrote a lengthy answer, interrupted by some four or five such attacks. There was momentary loss of consciousness — the head drooped slightly, the pencil slipped through his fingers, but was almost instantly regained, and the sentence Avas continued without any apparent disconnection of words or displacement of letters ; the interruption was so slight that, if he had not been closely watched, the conditioii might readily have been overlooked. In the case of this patient, a letter might \\a\e been easily written by him showing no confusion of ideas, and consistent in all respects, during a frequent repetition of such slight seizures as the above ; and, in a medico-legal sense, this is of the utmost importance to recognise. At the same time, these slight attacks of epilepsy are well known to issue in the most rapid impairment of intellect — a fact recognised long since by Esquirol. This is because the disease is of the " very highest nervous arrangements in the whole nervous system, and of those which have the greatest integration, that is to say, of the substrata of consciousness " (Ilughlings-Jackson).* 4. Post-paroxysmal Period. — It is during this post-paroxysmal period that much valuM))]e information may be gleaned, as the mental automatism then displayed is in many cases prolonged, and affords us the opportunity of careful study. Epileptic mania of transient duivt- tion is a most common result of the paroxysm, but it is by no means * Loc. at., p. 304. POST-PAROXYSMAL PERIOD. 233 .always of SO fleeting a nature. Cases occur where the maniacal excitement extends over many days without any furthei- epileptic seizures intervening. It apparently bears no direct relationship to the severity of the attack, or to the number of epileptic seizures ; it may follow slight seizures {petit mal), just as it may be the sequel to the major convulsive attacks {grand mal), and a single "fit," convulsive or non-convulsive, may leave the patient in this maniacal condition just as frequently as a succession of such attacks. This want of connection between the epileptic paroxysm and the occurrence of a maniacal outburst is perhaps more apparent than real. We are apt .to lose sight of the fact that the slightest seizures are just the very cases where consciousness is prone to be most impaired or involved, and where a seizure is most likely to be wholly overlooked by the friends or even the patient himself; and thus it happens that a paralysis of the central hierarchy of the nervous system may so withdraw control over lower centres as to issue in wild excitement, although the epileptic seizure Avas so slight as to be scarcely, if at all, appreciable to the onlooker. In like manner the major discharge, if it sta,rts (as in cases of insanity it most frequently does), from the highest cortical centres, may also leave these parts so paralysed as to result in a post-epileptic mania. One single attack may suffice for this issue ; all depends upon the site of the disease being in the realms constituting the cerebral substrata of consciousness, and hence the vital importance of noting whether in. our cases consciousness is lost completely or only partially, and whether early or later in the course of the paroxysm. The attack of epileptic mania is usually highly characteristic in all extreme cases. The excitement is most acute, attended by almost ungovernable violence and frenzied fury — no maniacs show such blind, uncalculating fury as the epileptic. On this account he is one of the most dangerous subjects we have to deal with in our asylums, for the attacks often occur with slight, if any, warning, the signal first given being often an attack of brutal and impulsive violence. The aspect of the patient fully accords with the impulsive conduct ; he is usually pale, ghastly, the eyes staring vacantly, and the face expressionless or betraying wild and passionate emotions. There is much incoherence, yet often the patient utters not a word, but struggles wildly, rushes madly at his attendants, and appears wholly oblivious to existing conditions around. At these moments he is in peril to himself and others; and suicidal and homicidal acts are not seldom accomplished under such circumstances. Occasionally some leading idea, usually a delusional notion of persecution, is expressed by the subject of this mania. It was before stated that a delusional state frequently pre- cedes the attack, becoming very apparent during the few last hours of 234 KPILKPTIC INSANITY. the pre-paroxysmal stage. In the state of epileptic mania such delu- sional perversions are very likely to reappear, and to prompt the subject to deeds of violence. There is a tendency apparent after epileptic seizures in the insane, for ccjnsciousness, on its reinstatement, to be occupied immediately with the subject-matter of thought pre- ceding the attack, which means no more than that certain nervous currents established just upon the onset of the seizure are liable to be re-established immediately as consciousness is regained ; what was most vivid to the patient's mind before the "fit" still remains most vivid when the attack is over. Thus, a question put to the subject and replied to, just before a convulsive seizure, will often be replied to again immediately at the first look of recognition on regaining con- sciousness. A female epileptic, e.g., asked her name, replied, " I am Annie Thornbury," immediately fell in a fit, and, on regaining normal consciousness, looked around and said again, "I am Annie Thornbury." An epileptic lad, asked his name and age, replied, "Sixteen years, Samuel Speight"; he thereupon turned pale, uttered a loud cry, fell to the left side, the head and eyes turned to the left, the left arm was ■extended and convulsed; he then turned over upon his face, and •convulsively moved his left hand wide-spread, as though scrubbing the boards. On regaining consciousness he rose to his feet, and looking straight at us, said, " Sixteen, I am Samuel Speight." So also in the case of U. C. in her automatic endeavour to pull out her hair (see p. 235). We mention these cases more particularly because they appear to us ■often to afibrd a clue to the persistence of a delusional notion, which, being present in the pre-paroxysmal stage, may rise into being in the post-paroxysmal period during the reductions of this stage, and issue in immediate action — suicidal or homicidal attempts. In the stage preceding the seizure, they may have little influence on the subject's conduct — he then retains at least his normal self-control ; but during the automatic stage of post-epileptic mania they may be of terrible import. Erom a medico-legal point of view, we cannot too strongly insist upon this feature, that leading ideas, delusional or otherwise, prevail- ing in the pre-paroxysmal stage are likely to become operative in conditions of post-epileptic automatism. Wild, delirious excitement after Jits is more frequent amongst women than men ; they lie awake all night, chanting aloud a song or sacred air, batter their bedroom doors with their hands, meet one with defiant glance, and are utterly reckless of life or limb if interfered with. Fortunately, their very reductions in consciousness prevent them from providing against tact and address on the part of an able attendant, so that they are readily overpowered and managed in most cases. IIYSTEROID ATTACKS IX EPILEPSY. 235 It is not, liowcver, all c;ises of epileptic mania which exhibit these wild and delusional states. Some subjects remain incessantly garrulous, and ramble in an incoherent and utterly absurd strain, often peer into one's face with a scrutinising look, or arrest the passer-by and address their irrational converse to him, but show no signs of vindictiveness or passion. Some betray their excitement by incongru- ous and unmeaning gesticulation and grimace ; others by incessant pacing up and down their rooms, exhibiting strange and fantastic mannerisms. One epileptic female in this stage invariably hastens down the corridor of her ward and kisses the pictures hanging to the walls; another is found kneeling with clasped hands before the busts and pictures. A case of epileptic imbecility in whom the fits are now very infrequent, even twelve months or more elapsing between each observed seizure, has a single attack of convulsions one night, and suffers from epileptic excitement for a fortnight subsequently. She lies in bed in a huddled heap, covering her head with the bed-clothes, muttering incoherently. When disturbed, she utters an unintelligible jargon, interspersed with curses, and, showing her teeth with a fierce, vindictive look — half snarl, half grin — plunges beneath the bedding. In some cases, but rarely, the acute maniacal excitement sets in immediately ujDon the cessation of the comatose stage. This was notably the case with E. C, in whom a wild struggle usually ensued after the convulsive seizure, homicidal and suicidal promptings being prominent features. In the case of a compositor, already alluded to, in whom garrulity augured an epileptic seizure, excitement has followed for a period of some eight or ten days. During this attack of epileptic mania he would wander aimlessly to and fro, or perform peculiar gyrations, talking incoherently in a loud, declamatory manner, and indulging in a rhyming propensity carried to a ridiculous extent. Hysteroid Attacks. — These are not at all infrequent accompani- ments of the epileptic seizure in the insane. Of these attacks Dr. Gowers says — ''Instead of presenting such automatic action, some patients pass, as already mentioned, into a state of violent hysteroid convul- sions. This sequel occurs chiefly at the age at which hysteria is met with, under thirty-five. It is most common in young women, frequent in boys and girls, occasional in young men. Hence it is evidently the result, not merely of the preceding epileptic fit, but also of the presence of the cerebral state which underlies the manifestations of hysteria."* Case ofE. C. The most remarkable case we have met with occurred at the ^Yest Riding Asjdum some fourteen years ago. It was that of a young woman aged twentj^-eight, and single, who continued * Op. cit., p. 692, 23G EPILEPTIC INSANITY. for sixteen months under our observation, and who for the first twelve months was subject to epileptic and hysteroid seizures, whilst during tlie latter four months she was completely free from fits, and was discharj^cd recovered. Her seizures occurred with great regularity every three weeks, and lasted from three to six da3's — the convulsive seizures occurring both night and day. The .symptoms of the several stages were tlius distributed. Pre-paroxysmal Stage. — For some days before a seizure, restlessness, irritability, a pale and anxious look, depression amounting to despondency, and much insomnia, were noted. Then supervened a notable peculiarity of manner, and she confessed to aural hallucinations, viz. — a voice repeatedly calling out, "Kill them! kill them! kill them!" She was at this time distinctly suicidal and homicidal in her impulses, and always recognised that the "fits" were pending when tlie phenomenal voice occurred. Occasionally, Muthout a seizure, she now became very violent and destructive. P remon'duru Period. — Restlessness more urgent, the "voice" more imperative, then the sensations of "a clock " within the head "woimd up tighter and tighter," when all becomes dark, and consciousness is abolished. Asked afterwards to describe the "clock," she defined a circular sweep about 4 inches in diameter, and in a horizontal plane around the vertex of the head ; and adds that if her hair were cut off she believes it would obviate the tight feeling of the winding. {Her last automatic act after an actual seizure is that of puUiiKj out her hair.) Associated with the "voice," she occasionally hears bells ringing, and has a feeling of prickling pain within the eyeballs. She never refers to her suicidal impulses or to the "voice" which prompts her to the act until after the S'.'izure ; but, she often refers to the clock as it begins, crying out, "The clock," "the clock," and then becomes unconscious.* Tlie paroxysm was invariably notable for the following features : — (a.) Deliberate rise of temperature and quickened pulse during the quarter of an hour preceding the fit. {h.) Peculiar recurrence of convulsive seizui-e in series of threes or sixes. (c.) Extraordinary periodicity of both diurnal and nocturnal seizures. (d. ) Post-epileptic automatism replaced hy hysteroid seizures occasionally ; or l)y wild ei)i]eptic mania with determined suicidal or homicidal impulses. The rise of temperature usually amounted to a degree above noi-mal, occasionally higher ; the pulse often rising to 130 before loss of consciousness ; it was also peculiar in the fact that when the convulsion was arrested bj' chloral, the viae in temperature still took place, and became even more marked when the lit was thus suppressed. The attack of convulsions presented two varieties — in one, com- mencing almost simultaneously, and occurring bilaterally ; in the other, beginning on the right side and spreading to the left, "Violent twitching of right angle of mouth ; the head drawn slowly to the right ; right arm affected by clonic spasm — then the left arm and hand ; eyeballs drawn upwards ; the feet raised from the floor, the left first, then the right, both rigid and quivering. Whole fit lasted about ten seconds, and terminated suddenly with complete muscular flaccidity." Another series of attacks is thus described. " Twitching of both eyes and angles of mouth ; then clonic spasms of both arms and legs, a preliminary tonic spasm hardly observed ; next, tonic spasm of the chest muscles with a loud scream ; universal clonic spasms ; relaxation of muscles, and tit over. Three or six such * This case, of which the main features are given here, has been published in detail in the West Eiilinfj Asylum lieporls, vol. vi. CASE OF IIYSTERO-EPILEPSY. 237 attacks occur in succession, the last always followed by closure of the eyes, which tliroughout tlie attack had been kept open. " Then after tliree or four minutes' calm tlie liiisteroid attack occurred ; the eyes opened suddenly, staring vacantly, the head was drawn rigidly back, the body arched Ijackwards in a position of opistliotonos for about fifteen to thirty seconds ; then the head was thrown violently forwards and backwards several times, and a severe struggle ensued in which she had to be forcibly restrained by several nurses to prevent her rushing to the window or injuring herself or others. When watched (unknown to herself) in the padded room at nio-ht, the same attacks occur, and in the succeeding hysteroid seizure her body has been tossed from end to end of the room against the pads by the violence of the contortions ; her Ijedclothes, also, after such attacks, were invariably torn to shreds. The epileptic seizures above described maintained an extraordinary periodicity in their sequence ; each series of fits almost invariably taking place at about the same hours throughout both day and night. Several features of the case would naturally suggest a purely hysterical origin for such an attack ; but that the seizures were genuinely epileptic associated with sequent hysteroid seizures, was conclusively shown by associated conditions which were invariably present ; these were — (1) initial rise of temperature and pulse; (2) aura of the "clock" followed by intense pallor of face ; (3) extreme dilatation and inequality of pupils, the right always the larger ; and (4) well-marked nystagmus. The number of epilei)tic attacks occurring in this subject varied from SO to 120 (both day and night), and these became somewhat less frequent and less severe towards the fourth or fifth day as the termination of the attack approached. The following note made by the writer at the time illustrates the thermal disturbance preceding the attack : — "Immediately preceding the attack a rise of temperature occurred of 1° to 1 "2° Fahr. ; and at the struggle a still further rise, often to the extent of 1°, or even more. The temperature then slowly fell again to 98 '6°, and on one occasion as low as 98 "2°, except when two fits succeeded each other quickly. On the occurrence of six struggles, the total elevation of temperature recorded was fully 2 ■2°, slowly falling to 99 "2 during the following hour and a-half. The previous administration of chloral invariably arrested the rise occurring hefore the fit ; hut at the exact rnoment when the fit loas expected, instead of a convulsive seizure, there was sudden profound sleep and a rise of about six-tenths of a degree." Another peculiar phenomenon was noted after the convulsive seizures had ceased and whilst a still childish, pettish mood prevailed, with distinct alienation, the temperature taken at periods corresponding to the time of her fits was found from six-tenths to 1 '8° above normal, although at other periods of the same day (not corresponding to the hour of a fit) the temperature was 98 '4°. "As these periods arrived she would become greatly depressed, often starting up and com- plaining to the nurse of her low spirits." At these times (although naturally an intelligent, bright, and cheerful young woman) she would remain for days subse- quent to the attack, childish in her pursuits, woiild make dolls' clothing, and fondle a doll like a child not out of her teens ; was capricious in likes and dislikes, pettish and ill-humoured. This case illustrates in a forcible manner most of the very variable features of epilepsj'. The premonitory depression ; the tendency to distinct mental aberration ; hallucinatory phenomena ; the aura, epileptic, hysteroid and cataleptic states ; impulsive homicidal and suicidal violence ; and the resultant mental reductions following the more marked post-epileptic automatic stages. 238 Kl'ILCPnC INSAMTV. Epileptic Katatonia. — We may here advert to cases of so-called katatonia— a tLim intended by Kalilbaum to include those multiple symptoms of stupor, cataleptiform, and ecstatic states, with phases of dumbness or reiterative speech — all running a certain cyclical course ; and, according to this author, constituting in their ensemble a distinct morbid entity, as characteristic as general paralysis. Such symptoms are not infrequent in epileptic insanity ; they especially prevail in the mental alienation of puberty and adolescence, in the puerperal forms of insanity, and arc closely associated with the vice of onanism. The more closely we study these cases of katatonia described by Kahlbaum and other writers, the more convinced are we that we are dealing, not with any distinct patliological entity, but with some of the multiple phases of hysteria. Melancholia attonita closely approximates to the states to which we now allude. Status EpileptiCUS. — The very extraordinary periodicity of the attacks narrated in the last case is, of course, exceptional ; yet a well- marked tendency to the periodic return of epileptic seizures has long been recognised, and especially emphasised by Reynolds — "A large number of epileptics have their seizures every day, every two weeks, three weeks, and four weeks, while only a much smaller number suffer at such irregular intervals as cannot be thus expressed." This opinion can be endorsed by all who have had acquaintance with epileptic insanity, for it is undoubtedly true that these subjects exhibit a notable degree of such periodicity. A periodic recurrence is more frequent in the female than the male ; but, this is attributable to the associated menstrual derangements so often connected with the epileptic convulsion. The number of seizures varies greatly in some individuals: an enormous number have been recorded within short periods of time ; thus, a patient at the West Riding Asylum had 1,849 convulsive attacks recorded in a period of fifteen days; and Delasiauve mentions an epileptic who had 2,500 attacks in one month.* In general a patient has one, two, or three attacks during the day or night, recovering full consciousness between each seizure, possibly passing many days before a recurrence. But if the attacks succeed each other rapidly, and consciousness be not restored between the convulsive seizures, if fit succeed fit at intervals of a few minutes only, the patient remaining comatose, we have developed what has been termed the epileptic StatUS, a condition of most serious import. The pulse and breathing become quickened, and, as Bourneville first indicated, the temperature rises to 105° or 107°, with deepening coma and stertor ; the patient is liable to sink. As the fatal termination approaches, the convulsions become * Quoted by Eoss, op. clt. , p. 932. EPILEPTIC AUTOMATISM — INTEH-PAROXYSMAL .STATE. 239 more frequent, a few seconds only intervening between each discliai-ge, so that at times they appear ahnost continuous, a fresh dischai-ge Ix'ing only recognised as a slight increase in the intensity of the convulsions. When this period arrives, however, the epileptic discharge becomes progressively feebler, and the fit may be characterised by a slight turning of the head and eyes to one side, with slight clonic movements of the limbs, or merely convulsive twitchings of one side of the mouth without conjugate deviation. The conjunctivae are, of course, quite insensitive, the pupils being widely dilated and fixed to the strongest glare of light, while the face and body are bedewed with a cold sweat. Often the temperature exhibits unilateral deviations, being highest, by a degree or more, on the side first (or most) convulsed. If the patient recover, the fall of temperature is most rapid on this side until a balance is established ; and subsequently, an equable and continuous decline of temperature proceeds on both sides. Many epileptics are subject to these occasional outbursts of convulsions passing into the status ; these cases an observant medical officer soon learns to recognise, and experience teaches him the necessity of keeping them for pro- longed periods upon bromide treatment. In the section on treatment of epilepsy we shall deal with this serious condition in detail ; suffice it here to remark, that prompt and vigorous measures must at once be adopted if we wish to save our patient's life. The mortality from the status epilepticus is said to be due to (a.) collapse, and (b.) meningitis, the fits ceasing, the patient becoming delirious, developing bed-sores, &c. We cannot say that this latter termination has been seen by us ; the mode of death has always been, according to our experience in asylum practice, exhaustion with hypostatic congestion of the lung. Epileptic automatism, of a most elaborate kind, is a prominent and often j)erilous feature in some epileptics after their fits ; its interest as a medico-legal question is great. Thus we constantly obsei-ve patients at this stage perform not only the most incongruous acts, but carry out what would seem to be complicated purposive acts, to which they are entirely oblivious on return to normal consciousness. They will pick the pockets of fellow-patients ; pui'loin articles in the most deliberate fashion ; conceal weapons, such as knives, &c., in their pockets or beneath their clothing ; and follow out, as before stated, a series of actions in accordance with the promptings of some leading delusional idea, such as a somnambulist would perform. The case of W. T., detailed below, illustrates this point forcibly, and still more so the case following it (York Assizes). Interparoxysmal State. — We come now to the mental condition of epileptics in general at the periods intervening between their seizures, when the immediate effects of the attack are past, aiul prior to the 240 EPILEPTIC INSANITY. disturbance engendered by tlie approacli of a fi-esh series of fits. In fcict, we have to study the peculiar characters of the epileptic neurosis, and the permanent mental reductions whicli Ijecorae established, in consequence of the diseased state of the nervous centres and the dis- ordered function. In reviewing a large number of the epileptic inmates of an asylum, it becomes evident that they may roughly be arranged in four classes. (a.) A small section is comprised by those who, upon the subsidence of the seizures, exhibit a perfectly normal state of mind ; no emotional or intellectual disturbance can be traced by the strictest scrutiny, and their conduct (consistent in every respect) enables thera to take up any emi^loyment for which they were fitted, and carry on responsible functions in various departments. Why are they, then, inmates of an asylum? Because their epileptic seizures are preceded or followed by such transient mental aberration, or by such reductions as render them at these times a risk to themselves and others ; or, because the interval between their attacks is so short and exposes them to such risks in their usual avocations, that they demand continuous supervision and treatment. Outside an asylum this class is a large one ; comprising, as it does, all those in whom the nature of the epileptic seizure is such as to affect the mental faculties but slightly, if at all, even in the pre-paroxysmal as well as post-paroxysmal stage. It is a well recognised fact, which the student must bear carefully in mind, that certain forms of epilepsy with frequent fits may last for many years, and yet the mental faculties remain, in the interval between the successive seizures, perfectly intact ; nor must he be misled by any such notion (as we once heard expressed in a court of j ustice), that becaitse a man has had Jits for viany years his mind must necessarily have suffered jjermanently ; although, of course, in a large number of cases, the presumption is in favour of such implication. (6.) Then there are those cases of epilepsy in whicli the affective sphere of the mind is almost exclusively at fault ; where, with a normal and often vigorous intellect, we still find, as a permanent residue, an emotional perversion, which maps them off from the healthy com- munity, and which reveals itself by certain oddities, eccentricities of conduct and want of control ; or, by an abnormal welling-up of feeling, an instability of emotions highly characteristic of the class. To this section, also, belong many who might be called moral imbeciles. (c.) Then there is the extensive class of those in whom the main feature is intellectual perversion ; in whom delusional states are rife ; and in whom the passions are violent and uncontrolled ; a class which comprises some of the most dangerous elements amidst our asylum communities, since with all the natural impulsiveness of the epileptic, EPILEPTIC HYPOCHONDRIASIS. 241 the delusional states engendered render tliem, at all times, apart from their paroxysmal seizures, pi'one to acts of desperate violence. ((/.) Lastly, there are the advanced cases of epileptic dementia, in which the reductions are so extreme, that the higher emotions and moral sense are well-nigh extinct, and the intellectual operations correspondingly enfeebled ; and in whom the mental life of the indi- vidual consists of the lower animal instincts and passions, and the impulses towards their immediate gratification. None of the insane arrive at a more degraded level than the epileptic dement ; none of them exhibit more rejDulsive traits — more obnoxious passions ; and in none does the physique undergo sucha corresponding degradation in type. Amongst the several arbitrary divisions thus enumerated, there are certain mental characteristics common to the whole class which largely enter into what we mean by the " epileptic neurosis." Notably pro- minent is the tendency to self-engrossment which may pertain, not only to the bodily sensations, giving rise to the grosser forms of hypochondriasis, but also to the passions, and feelings, and senti- ments of the individual, which are morbidly dwelt upon and, so, intensified. Any bodily discomfort, however trivial, is thus apt to be exaggerated into a serious ailment, and incessant complaint is made to the medical attendant as to the state of the stomach, the bowels, the heart, &c. The epileptic is essentially a hypochondriac; on the other hand, irritability of temper, to which he is prone, is sure to find an object of complaint ; imagined ills are conjured up, and he conceives himself the most injured individual in his ward. In like manner, his sentiments respecting his own abilities and aptitudes undergo a like intensification, and he becomes vain and self-laudatory. This rise in the self-consciousness begets an egoistic state of mind, which renders the epileptic the most selfish and narrow of all beings, and the corre- sponding decline of object-consciousness is well illustrated in his utter regardlessness of the time or comfort of others — his incessant and wearying importunity and demands upon the patience of his fellow- creatures, his obtrusive display of self-interested motives — in fact, in the profound decline of the altruistic sentiments and higher moral incentives to action. Opposed to this moral decadence, at first sight, might appear the statement that the epileptic often betrays a notable degree of religiosity ; above all others of the insane, he is distinguished for his adherence to religious rites and formalities ; importunate in his requests to attend religious services, addicted to repeating Scripture texts, to constant perusal of the Bible and devotional works, to singing sacred hymns, to falling on his knees in prayer upon inapt occasions and with an obtrusive show of mock piety ; he but illustrates another phase of the rise of self-consciousness as it pertains to the religious IG 242 EPILEPTIC INSANITY. sentiments. His religious life fails in its intellectual grasp ; it is essen- tially egoistic, shallow, selfish, and similar to the undeveloped phases of the religious life in a low grade of civilisation. The grossest animal passions find their gratification pari passu with this mock display of pietistic fervour, with a sanctimonious bearing and a profuse indul- gence in religious cant, and with apparent consistency in the epileptics mind. The realisation of the religious life in action — the objectivising or actualisation which is its proper sphere — is at fault; there is a decline in object-consciousness ; hence he finds no difficulty in reconciling these feel- ings with the continuous gratification of low and depraved instincts. The lower types of epileptics also exhibit a characteristic low cunning and deceit ; they are treacherous in their dealings with their associates, thievish in their propensities, and when arraigned upon a charge of misconduct, will meet it with the coolest audacity, and lie to the bitter end. The epileptic shows a tendency, akin to that of the hysteric subject, to malingering. Both will falsely accuse of violence those with whom they are aggrieved; Avill treasure up a tooth, or wilfully pull out their hair by the handful, and present it, to counten- ance their charge ; and will cunningly call to their defence certain delusional notions to which they may be prone during the period of their seizure, if they can benefit their position thereby — this tendency should be carefully borne in mind. All the apparent delusional statements of an epileptic are not to be received, except with ca\ition, as their sole object may be to obtain some indulgence or requirement, and especially so with the hypochondriacal subject. Con- sorting with this moral decadence the epileptic is eminently instinc- tive and impulsive, a feature demanding the utmost tact in his management at the hands of those who undertake his case ; his conduct, when aroused, is peculiarly brutal and ferocious, and often charactei'ised, like liis actions during periods of epileptic automatism, by wholly disproportionate and excessive violence. The reaction-time in epileptic insanity is delayed as will be apparent from the following series, taken indiscriminaitely from a large number of cases examined : — Reaction-time in Epileptic Insanity. AcocsTic Stimulus. Optic Stimulus. J. J. M., . •20 of a second. •23 of a second. J. v., . . . •21 •25 F. P., . . . •18 •23 J. D., . . . •19 •21 W. P., •17 •19 R. H •24 •26 A. D., •28 •29 FORENSIC ASPECTS OP EPILEPTIC INSANITY. 243 MediC0-leg"al Relationships. — No form of insanity so frequently presents itself to the medico-legal expert as epileptic insanity, and this from two very obvious reasons. Epilepsy is a disease to which the criminal class are peculiarly subject ; it is the associate of in- temperance, moral degradation, vicious bodily organisation, and the very varied heritage of a criminal parentage ; and, in the second place, of all cerebi'al diseases it is the one which tends to engender impulsive fox-ms of insanity, as well as to degrade and brutalise the victim's nature, whilst the phenomena of post-epileptic automatism often lead to acts of apparent criminality although the subject is really an irresponsible agent. First, then, we would ask : How far does the fact of epilepsy render its subject irresponsible for his actions 1 It is obvious from the foregoing considerations that epileptic insanity no more presents a uniform series of symptoms than do the physical accompaniments of the epileptic paroxysm always assume the same orderly sequence of events. Just as it is allowable to speak of epilepsies, rather than epilepsy, as regards the physical features presented by the attack ; so the correlated mental symptoms exhibit very varied forms of insanity. And, apart from the varying type of the insanity, we also witness a great variation in degree ; so that, we may not only find that our patient is prone to melancholia, mania, delusional insanity, impulsive insanity, dementia, but also that all these anomalies may vary in degree from the slightest to the most intense manifestations, or long periods may intervene Avherein no mental anomaly presents itself It cannot be questioned that many epileptics suflfer little, if any, mental derangement jDrior, or subsequent, to their seizures ; and, that the interparoxysmal period 'tna.j be one consistent with the most perfect sanity, with vigorous mental activities, with intellectual capacities of a high order, and with special aptitudes and executive address which enable them to hold positions of trust and high responsibility. It is only as the immediate forerunner or outcome of the epileptic seizure that they may be truly irresponsible agents. The "fits" may even be of frequent occurrence, and yet the interval between two consecutive seizures may present no obvious mental derangement. We must not, therefore, assume that because a patient is epileptic and has many fits, even with mental disturbance, that he is necessarily alienated in the interval between such attacks, and therefore irresponsible for his actions. The longer the interval between two seizures, cceteris jid-rihuti, the greater the presumption also that the mental faculties may escape implication ; and since frequent occurrence of fits is damaging to the mental constitution, especially fits of a certain type, so, conversely, we anticipate more interparoxysmal mental derangement in cases of rapidly-recurring attacks. In fact, the 2)'>'oxinii(!j of an act of outrage 244 KPILEI'TIC INSANITV. or violence to an epileptic seizure directly favours the presumption of mental impairment ; and, in this connection, it must be sti-ongly in- sisted upon that the mental disturbance following upon a single epileptic iit is frequently prolonged over many hours or even days. The question might, therefore, be naturally put: if an act of violence be committed by an epileptic a day or two subsequent to an epileptic seizure, is the agent to be regarded as responsible for his conduct, because on the expiration of a further period he is found perfectly sane 1 Obviously, from what was implied above, we are not justified in assuming that, since he is free from obvious mental derangement a week or so subsequent to his seizure, he was not alienated for some liours, nay, days, after the attack. Acts of suicidal or homicidal nature may be committed subsequent to epileptic seizures as the out- come of (a.) Genuine automatism ; (b.) Or as an incontrollable impulse devoid of motive ; (c.) Or during the blind fury of epileptic mania ; (d.) Or, lastly, the act may be instigated by the promptings of a deluded mind. It is essential that we clearly distinguish these states in investi- gating the hidden springs of a murderous or suicidal attempt. First, as regards epileptic automatism, it must be remembered that actions of very considerable complexity may be performed whilst the individual is a mere machine acting like a purely reflex mechanism, the patient upon return of normal consciousness being completely oblivious to the act which he has perpetrated ; in this condition he is neither conscious of the act performed nor of its consequences. Incontrollable impulse is another form of morbid activity which reveals itself in the subjects of epilepsy ; like the motor explosivencss of the convulsive paroxysm, a leading" idea may prompt to action with an imperative demand which brooks no denial. Epileptics are often conscious of this dire necessity ; it may ai'ouse within them the ancient docti-ine of fatalism ; they may be terrified at their own help- lessness, and implore us to impose restraint — a plea the veiy last to be neglected by the medical adviser. The impulsiveneSS of the epi- leptic is proverbial, and should never be lost sight of in questions involving his responsibility ; for, where other evidence of mental im- pairment is wanting, where delusion cannot be traced, where the subject was possessed of presumably normal consciousness at the time of his act of violence, still a factor of the gravest moment in this line of conduct may have been a notably diminished self-control. The essence of an impulsive act is, of course, its spasmodic suddenness and want of apparent motive. The lawyer naturally enquires for a IMPULSE DELUSION — MALINGERIXG. 245 motive, which, if found, he regards as evidence presumptive of the volitional nature of the act, and subversive of the doctrine of its im- 'puhive character. He assumes that the presence of motive warrants him in regarding the epileptic as fully conscious of the deed he per- forms — of its nature and probable issue. We should be most guarded in accepting this conclusion. The motives prompting to action in healthy mental operation are so complex as often utterly to defy our most careful scrutiny ; much more so will this be the case when dealing, not with an organism which re- acts within fairly constant or calculable limitations, but with the perturbed brain of the epileptic, in which the line of conduct is subject to no method of calculation. Even if there be a strong colouring of evidence that the act was the outcome of apparent motive, the natural, and often inborn, impulsiveness of the epileptic neurosis should warn us seriously against arriving at too hasty a conclusion upon this head. In the third place, outi'ageous actions may be committed durino- the wild mania incident to epilepsy ; in these cases, of course, no doubt can arise as to the agent's utter irresponsibility. The natUFG of SUCh acts in these latter cases will often be characterised by their frightful violence; the crime can thus often be instantly identified by its blind, aimless, uncalculating, utterly reckless fury, which at once stamps it as the work of an epileptic {^Maudsley). There are in these murderous outrages of epileptic mania indications of — (1) an utter loss of control, (2) of deep reductions in consciousness, (3) of violent explosive conduct. Lastly, the act may be done, as stated above, at the instig'ation of a deluded mind. The epileptic insane are not necessarily (or even frequently) deluded, and we should look with some suspicion upon cases of affirmed delusion, fostered by those whose paroxysms are infrequent, or occur at long intervals. The delusions of epilepsy arise, as before stated, during the eai'ly and premonitory stages of the attack; the paroxysm itself often having the effect of clearing ofi" the mental clouds, and of leaving the subject often better than before the seizure. One crucially important feature, however, to recognise from a medico- legal standpoint is, that the delusions prevailing prior to the epileptic seizure may be operative immediately subsequent to the fit, and before consciousness is completely regained. This has already been noted, but its importance merits emphasis here. When an epileptic sutlers notably from delusion prior to his seizures, the outcome of his paroxysm should be carefully watched [E. C, W. T.). It is, of course, of the greatest importance to recognise any connec- tion existing between the conduct of the epileptic and the previously existing delusional state ; since, if the act be the direct outcome of, or can be traced up to, such an aberrant state of mind, he must, of course, 246 EPILEPTIC INSANITY. be regarded as an irresponsible agent. The depth of reduction in these epiloi)tic derangements should receive attention. (a.) Was the act characterised by complete automatism 1 (b.) Or was he sufficiently conscious as to recognise its nature 1 (c.) Or was he sufficiently conscious to recognise its criminal nature also — the distinction between right and wrong, and the probable issue 1 (d.) Or, even if the latter was the case, was it the outcome of insane delusion, or perpetrated as a purely incontrollable impulse 1 Maling'ering". — Epilepsy is, as is well known, frequently feigned by the criminal community ; often with the object of exciting com- miseration and extorting pecuniary assistance ; and this is done with considerable cunning and success by some. But, though the com- munity generally may Vje imposed upon with ease, it is scarcely possible that one well versed in the subject could be deceived by the most cunning and expert. The intense pallor preceding the strong con- vulsions, the widely-dilated pupils, the disturbed organic functions, and, often, the minute extravasations of blood over the surface of the body cannot be assumed ; and would, therefore, lead to speedy detec- tion of the fraud. It is not so with the forms of mental derangement associated with epilepsy, the delusional perversions of this stage being readily counterfeited, and by no means easy of detection. The plea of epilepsy is one so frequently established in defence of cases of outrage, assault, or murder, that the possible feigning of this disease and its forms of mental disturbance should always be borne in mind. The difficulty is greatly enhanced by the fact that the criminal class are so much associated with those subject to epilepsy, that they acquire considerable address in feigning the disease ; and they have .sufficient cunning to assert the presence of hallucinatory and delusional states if thereby they can gain their ends. And here we are face to face with another difficulty : the genuine epileptic is also notably cunning, and often much given to shamming — not bodily ailments alone, but mental also — usually with the object of obtaining some desired indulgences ; it is by no means infrequent to discover an epileptic girl " shamming" a fit, just as others affirm they suffer excruciating pain, &c. Such a subject, arraigned on a trial of murder, would be most likely, if he thought the plea of insanity would save his life, to reproduce his former experiences, and assume delusions from which he might have suffered at times. In the case of Beg. v. Taylor, where the prisoner was charged with the murder of his infant child and of the police-superintendent, it was believed that the state- ments advanced by the defence as evidence of delusional perversion (obtained J zfs^ prio7- to his trial) were of this nature. The closest obser- vation and repeated examination during his early imprisonment wholly CASE OF REG. V. TAYLOR. 247 failed to elicit a deluded state ; and it is strongly suspected that the frequent subsequent examinations which he underwent suggested to his mind the policy of malingering. That he was fully aware of the gravity of his oflfence, and the probable issue, was made apparent by his statement to a fellow-prisoner on the night preceding the trial, that he would probably have to go to a lunatic asylum ; a recognition of his position wholly inconsistent with the assumption of the defending counsel, that the prisoner was a complete mental wreck. That he was subject to delusions, about the period of his " fits," could not be doubted ; and that the murderous act was instigated by such delusion is equally free from objection; yet the facts, that a period of some months had elapsed without such a seizure, and that no clue to delusion was forthcoming until just prior to his trial, were strong evidence in favour of his malingering. In this case also no epileptic seizure had occurred for three months subsequent to the murder ; and the question as to the very existence of epilepsy in his case required examining. It was found that his neighbours and fellow-townsmen knew little or nothing about his " fits," and evidence as to such could only be obtained from interested parties — his wife, parents, and a lodger. But here again, on the other hand, it was obvious how readily a genuine description of epileptic seizures may be recognised from a feigned account. A most graphic account of grand mal and 'pet'it mal was given by each witness separately examined, consistent with each other in every detail, evidence which most distinctly would have broken down if the witnesses had not actually and indivi- dually witnessed the seizures. Another question of interest in this case was the actual condition of the prisoner's mind at the time of the act. Was the act characterised by impulsiveness, or was it the out- come of the delusions previously fostered % There is little room for doubt that the act was deliberate and intentional, according to his own account. He had for hours barred himself within his house, handlina: a loaded gun ; his pockets contained several loaded cartridges ; and it was only after watching his pursuers for some long time through the window of the house that he eventually took deliberate aim "behind the ear" of the police-superintendent and discharged his gun. He both intended to kill his victim and fully recognised the surround- ing circumstances. . In short, the act was very clearly not the impulsive act of epileptic furor, but the well-planned and determined act of a deranged mind prompted by delusion.* One of the most striking * As these sheets are passing through the press, I hear that this criminal-lunatic has, in a fit of maniacal fury, destroyed his eye-sight by self-iuUicted violence, at the Broadmoor Criminal Asylum ; and, in a letter subsequently dictated to his wife, he says:— "Old Satan told me to pull out my eyes, and 1 camiot see at all now. " 248 KPILKPTIC INSANITY. instances of liallucination, or the aura epileptica, becoming the motive for action during the automatic stage i.s illustrated by a aise whei-e the subject (who was undoubtedly neurotic, of a very bad stock, but who was not known to have previously suffered from epilepsy), as he lay in bed beside his wife, imagined he saw two burglars rifling the contents of a chest in his room. He spi'ang out of bed, and, according to his own statement, as he rushed from the room for help, he saw one of the men rush upon his wife and strike at her with a hatchet. He remembers nothing more ; but was found by a policeman (to whom he made the above statement) wandering in the streets, vacant and con- fused, and holding a hatchet in his hand. It appeared, from all the evidence produced in this case, that the poor man had a fit, jjreceded by the visual aura of the burglars in his room, that the idea of the hatchet prompted him to rush down stairs to the cellar in order to secure that wea^oon, and during this automatic stage he murdered his wife. No case could more forcibly indicate the friglitful risk to which the aura may expose certain epileptics during the post-convulsive stage, and the necessity for close supervision. Treatment. — No drug has so powerful an influence over the convulsive attacks of chronic epilepsy as the bromide of potassium, or the combinations of bromine with sodium and ammonium. The first- mentioned is most relied upon, and may be administered for very lengthened periods of many months without inducing hroniism, and with very marked benefit. There are a certain proportion of the epileptic insane — doubtless the minority — in whom the bromides are of little or no avail ; but by far the lai'ger number exhibit a notable reduction in the frequency and severity of their fits upon their administration. The bromides have no immediate action in checking the fits, so that a somewhat prolonged treatment is necessary ere the desired effect is obtained ; hence, if the attack is threatening (owing to the severity and rapid succession of the convulsions) to pass into the status epile^}- ticus, it is of little use depending upon the bromide for cutting short the attack. For tins purpose we have no rival to chloral, which, given in sufficiently large doses, rarely ftxils to arrest the seizures. Where there is an enfeebled heart and torpid circulation, large doses of chloral naturally suggest great risk — hypostasis certainly is to be feared ; yet the imminent peril from exhaustion, due to the repeated seizures, renders it necessary to administer this drug, with certain precautions. It is Avell, first, to inject subcutaneously from -jVjy to -j^ of a grain of atropine if a large dose (40 grs. to a drachm) of chloral has to be given. Thus shielded, a sufficient dose of the drug may be given to completely arrest the attack, a procedure preferable, we thiidc, to the more frequent administration of small doses. It is TREATMENT OF EPILEPTIC INSAMTY. 249 imper.ative in these cases that nourishment be given in the intervals between the fits ; and, if the patient be too unconscious or torpid to swallow, it must be introduced by the stomach tube. In a few cases vomiting may occur and food so given be constantly rejected, and yet a nutrient enema may be retained, and, with this chloral may be combined. It should always be borne in mind that chloral has its-; role in the emergencies of epileptic outbursts, bromide in the more prolonged treatment. Many patients in asylums cannot live without the bromide treatment ; if it be neglected, the fits become at once so frequent that they run imminent risk of passing into the epileptic status, and dying thus. Hence it is that in most asylums we tind chronic epileptics who for years together, with short intervals of rest, are taking bromides continuously, who maintain their health well, have hearty appetites, are cheery and industrious, and whose fits, recurring at long intervals, would at once assume a serious character if the drug were suspended. Prolonged treatment usually entails in many a very troublesome form of acne. It is customary, in such cases, to suspend the drug for a few weeks, and order the jiatient saline laxatives; but it may equally well be met by the combination of a small dose of the liquor arsenicalis with the bromide salt. In fact, arsenic may be given in all cases alike with decided benefit from the outset. On the other hand, a certain proportion of our epileptic insane have a sei'ies of convulsive attacks periodically, often with intervals of months between. During the intervening period they are free from excitement, active, and cheerful subjects, but when once the fits are about to occur they become querulous, hypochondriacal, and violent. Such patients may often have their attacks cut short by a dose of chloral, and by removal from sources of irritation to the quiet of a darkened room ; nor do they by any means invariably call for prolonged bromide treatment. To select those cases suitable for bromide treatment from those who can be safely kept without this drug, requires a prolonged experience — each case must be judged upon its individual merits; but, in all alike, bromide treatment should, in the first place, be adopted with the hope of possibly lessening the frequency and alleviating the severity of the attacks. In the epileptiform attacks, such as characterise the history of many cases of general paralysis, we shall find that the bromides are of no avail ; here chloral must be our sheet-anchor. The long-continued maniacal excitement of epileptics is best met by repeated doses of the asylum "green mixture" — i.e., bromide in combination with the tinc- ture of Indian hemp ; half-drachm doses of the former, with one-drachm of the latter, given twice or thrice daily, rarely fail to alleviate tlie 250 GENERAL PARALYSIS. excitement. In the more serious delirious outburst of epileptic furor, ifc is well to administer chloral at intervals, followed by the former mixture. How bromide acts upon the nervous centres we do not know; by what means it induces more stability of the discharging cells is at present a complete mystery. " Bromides are said to cause contraction of the small arteries of the brain, but it is exceedingly doubtful whether any part of their infliionce in epilepsy is due to this action." {(Jowers). Iron, given in combination with bromide, is of indubitable value in all such epileptics as exhibit any notable disturbance at the menstrual periods, at which time there is often not only a succession of fits, but iilso much maniacal excitement. Its vise is also called for in all the hysteroid attacks. GENERAL PARALYSIS OF THE INSANE. Contents.— Prodromata — Egoism— Early Moral Perversion — Failure of Re-repre- sentative States — Enfeebled Attention — Transient Amnesia — Vaso-motor Derangements — Early Paresis— Second Stage— Delusions of the Paralytic and Monomaniac— Vanity and Decorative Propensities- Sexual Perversions— Facial Expression — Articulatory Imjiairment — Cerebral Seizures — Syncope— Epilepsy (J. F.) — Unilateral Twitching (J. S.)— Epileptiform Attacks — Conjugate Devia- tion — Case of H. P. — Apoplectiform Seizures — Monoplegia- Hemiplegiai — Spastic and Paralytic Myosis— Mydriasis and Amaurosis — Reflex and Associative Iridoplegia — Statistical Tables— Consensual jSlovements— Retiex Dilatation — Reaction-time— Spinal Symptoms (M. J. R.) — Deep Reflexes- Tabetic Gait (H. U.)— Incontinence and Retention — Atrophy of Vesical Muscle — The Blood in General Paralysis. It is not an easy task for the student to gain a clear and compre- hensive view of so protean a malady as that of general paralysis of the insane ; nor need he be surprised or discouraged at this when he is informed that most authoi'ities on the subject difter as to supposed varieties of the disease — whilst others are sceptical as to whether the term does not comprise several rather than one pathological entity. "When he is further told that no single portion of the entire cerebro- spinal system and its peripheral nerves (not even the sympathetic system itself) is safe from the encroachments of this far-reaching disease, he will be prepared to meet with a most complex sympto- matology, and one in which vai'ied groupings of symptoms may present themselves as one or other region of the nervous centres is implicated. Although the whole cerebro-spinal axis may become involved in this disease, it yet undoubtedly expends its chief force upon the cei-ebral cortex, which is primarily the affected site ; yet, cerebral, bulbar, or spinal symptoms may one or the other preponderate, or be so variously grouped and associated, that several artificial subdivisions of general paralysis have been framed by different French writers of eminence, the utility of which, however, is questionable, except as a matter of EGOISM EARLY MORAL PERVERSIOX. 251 pure convenience for purposes of description ; they do not represent genuine pathological varieties. What the student should more especially bear in mind is the fact that, in this affection, he is dealing with a coarse brain disease, which, implicating primarily the highest nervous arrangements, is prone to spread progressively, both laterally and in depth ; a disease which ultimately leads in all cases to dissolution of such nervous mechanism, and to correlated mental reductions. The progressive impairuient of highly elaborated motor mechanisms and the mental reductions comprise the characteristic features of this disease, however diversified in type. Moreover, his anatomico-physiological studies of the brain will have taught him that in a disease spreading over the sensory and motor areas of the cortex (involving so universally the substrata of the mental operations) the mode of onset, the signs and symptoms, the progress and duration, will vary greatly with the regions first implicated. ProdPOmal Stag's. — The prodromal stage of general paralysis is of very variable duration ; it is usually prolonged over many months, and often embraces a period of several years. Many of the symptoms then apparent are trivial, taken by themselves ; but several are of the gravest import and highly significant, especially when the ensemble is considered. A restless, unwonted activity (mental and physical) is of frequent occurrence, a feeling of superabundant energy prevails, for which there appears no adequate relief; often there is undue irritabil- ity and a perverseness which will not brook control or contradiction — an unreasonable demand upon the time and indulgence of others ; waywardness, fickleness, or outbursts of furious passion upon trivial pretexts in those who had previously been more self-controlled and amiable ; a growing change in the disposition and character, usually signalised by perversion of some one or more of the moral sentiments — a fact of primary import from a medico-legal point of view. The implication of the aff'ective sphere of mind may issue in melan- cholic gloom or despondency; or, on the other hand, in undue elation and hien-etre ; but just as often in sudden alternations of mood fi'om one extreme to the other. The general restlessness spoken of pertains particularly to the ordinary pursuits of life and business; there is undue eagerness, a planning, scheming spirit, often exhibited in extravagant investments or in extraordinary outlay incommensurate with the sub- ject's resoui'ces. Or it may show itself as intense anxiety about his prospects, his home and family. This frequently passes into more marked elation, an egoism which displays an exalted view of his own attainments in science, in art, or in general intellectual capacity ; an officious self-gratulation ; a tendency to extravagant talk, to laudation of his own status, his wife and family, and a yearning to test his -';)-' OENERAL PAnALYSIS. intellectual or physical vigour. The religious sentiment is often in the ascendency, and may lead to various philanthropic schemes ; and new projects may be based upon similar exaltation of the domestic or social feelings. Emotional waves are of frequent occurrence ; and silly, uncontrollable laughter may replace passionate weeping, for whicji no adequate cause can be assigned. It will be observed that we do not infer from all this a distinctly dehuhd state of mind — the existence of delusions becomes a more prominent feature in the subsequent stage — although at this period the patient hovers on the borderland of delusional perversion. The judgment is enfeebled and clouded (not necessarily perverted), and the condition is, in fact, one of over- balance. As before remarked, moral pervePSion is what appears so frequently to present itself at this period of incubation; moral lapses are so frequent at this time that the unfortunate subject, especially if he belong to the lower strata of society, becomes lodged in prison and detained for offences committed during this early period of alienation. It is a most common experience in public asylums to receiA'e from prison authorities subjects of this disease, who have been arrested for theft, drunkenness, violence, or indecent assault. The moral lapses to which we now refer differ essentially from the acts of those suffer- ing from so-called moral insanity. In the latter, the actions indicate impulsive and uncontrollable states, as the result of a lowered or defective moral sense ; the normal inhibitory control is wanting and instinctive impulses rise into full activity. It is not so with the acts of the general paralytic ; they are neither premeditated nor impulsive, but casual, often appearing to be unconsciously performed ; even if the act appear determinate, its nature and consequences are wholly obscure to the agent's mind. And here the essential nature of these acts on the part of such subjects becomes apparent ; that high degree of representativeness essential for the recall of similar actions previously performed, and the vivid realisation of the consequences of such actions in the past, is here icholly loanting ; and still less is that re-representative facility intact, which enables him to contrast the act as ^•icwcd in its nature with certain ethical canons. The moral lapse is, therefore, truly significant of a clouded intellect, of an incipient dementia — the cognitive, relational, or intellectual element of mind is on the wane. That such acts are not merely the result of simple perversions of the moral feeling is sufficiently attested to, by the complete absence of forethought and judgment which characterises them, by the absence of choice of circumstances favouring the act, by the want of object or reasonable motive — as when a wealthy man purloins an article of trivial value, as well as by the silly character of the act and manner ENFEEBLED ATTENTION — TRANSIENT AMNESIA. 253 of its accomplishment. An act of theft may be comiiiittcd with open cfTrontery, no attempt at conceahnont Ijoing made ; the most wanton outrage on public decency — the most audacious libertinism — may be committed by an individual apparently quite oblivious to a brcacli of public morals. Thus, a respectable member of society, of good social standing, gifted with many amiable virtues and natural talents, suddenly develops an unusual and objectionable freedom of speech and action, shocks his wife and family by various irregularities ; plays the "hero to the barmaid;" indulges in unwonted alcoholic excesses; makes extravagant purchases or silly presents to quondam friends and casual acquaintances, for whom he suddenly professes a sincere attachment. In one such case, observed by the writer, extreme emotional instability prevailed, violent passion would ensue upon the most trivial occur- rence, and just as readily might the patient be calmed into good humour, or made to shed tears profusely. Another patient, watched through this stage of the disease, conceived exalted notions respecting his family ; his eldest daughter became a constant theme of converse, on which he would fondly dwell until he had utterly wearied his hearers. He then developed a too amiable weakness for the other sex, and from being a model husband, became careless, suddenly left his home, and was not heard of for some weeks. It then appeared he had developed a craze for preaching, and had travelled as an itinerant preacher amongst the mining community of South Wales. He re- turned to his friends deeply impressed with the importance of his mission; talked incessantly upon religious topics; and became morbidly depressed and hypochondriacal. In a case of incipient general paralysis, the subject of which was a highly talented mathematician, one of the earliest psychical symptoms was intense despondency, together with sudden lapse of attention and memory. Often when absorbed in the interest of solving a problem have we seen him cover his face with his hands; rise from his chair; and with a pained expression and the hurried remark, " It's of no use — it's all gone," hurriedly leave the room. He frequently confessed how painful such a state was to him ; how utterly incapable he felt of exercising the slightest eftort of atten- tion ; and how completely oblivious he became to the various links of the argument followed, before this disruption occurred. In this instance these sudden amnesic attacks prevailed for many months before definite aberration was recognised, and the onset of the estab- lished disease was one of sudden maniacal excitement, accompanied by acute hallucinations. This subject also spoke to his medical friends of the sudden and causeless emotional states — "as a welling-up of his feelings, only relieved by a passionate flood of tears." The transitory amnesic states are very frequent as an early 25-t GENERAL PARALYSIS. symptom of the disease, and almost invarialily imply a serious failure in attention — the faculty which, as Sir Crichton-Jirownc has insisted, is earlier impaired than any other. To the same origin must be attributed the furr/e.tj'ulness which is an invariable accompaniment of this early stage, and which so often leads to inconsistent, ludicrous conduct; inattention to the claims of others ; and unconscious infringe- ment of codes of honour, or of courtesy, ' ' This loss of memory will be observable in many ways ; especially is he likely to forget what he has done a day or two previously ; and he will not only be forgetful, he will be careless, apathetic, and indifferent about that which formerly interested him ; and, when he takes up new schemes and projects, his attention soon flags, and his interest vanishes. We see, in short, in his whole mamier of life a weakening of mind, such as may be noticed in the commencement of senile dementia ; but which, occurring in a fine and vigorous man of, it may be, thirty- live, too surely indicates the ruin even now commencmg" {Bland/ord).* We observe, at this pei'iod, that a very impressionable state of the vaso-motor system often prevails; palpitation with alternating flushing and pallor of the face, or, often, severe headache and neuralgic pains are complained of; the circulation is generally sluggish; and an early symptom (one for wdiicli the patient ' often first comes under notice) is that of a torpid liver. The hepatic functions are almost invariably deranged, leading to obstinate constipation, bulimia, and digestive troubles; the skin often assumes an icteric tinge; such symp- toms affording material for hypochondriacal complaints ; numbness of the hands, with tingling and formication of the skin, are also not in- frequently complained of. Another frequent premonition is that of A-ertiginous attacks ; slight attacks of vertigo often escape notice, the patient not complaining unless his attention is directed to the matter; they occasionally, however, become severe. Even at this early date there may appear distinct motor troubles, a fine fibrillary quivering of the tongue may be observed, or a coarser twitching of individual fibres ; an inco-ordinate jerky protrusion of the organ ; a tremulousness of the upper lip or the facial muscles during conversation. Pupillary anomalies may coexist also, or may antedate the above paretic symptoms by months or even years, as aflSrmed by Griesinger. Another highly significant group of .symp- toms is constituted by certain epileptiform or apoplectiform seizures which may now ensue, and which may become frequent at a later stage of the disease. They may usher in the fully-established affection, and thus may form, so to speak, a definite line of demarcation between the earlier and the second stage; but it is just as frequent to hear of such seizures, both convulsive and apoplectiform, far back in the history of the case. * Op. cit., p. 2G0. ESSENTIAL NATURE OF THE DELUSIONS. 255 Second Stag's. — After this stage of alienation has prevailed, for a longer or shorter period, more active symptoms are liable to arise ; it may be by a gradual transition; but, often, there is an abrupt passage into a maniacal condition in which vivid hallucinations pre- vail. The intensity of the excitement is often extreme, acute maniacal states (verging even upon delirious mania) are frequent j incessant restlessness, obstinate sleeplessness, noisy boisterous excite- ment, and blind uncalculating violence, especially characterise such states. The reductions are so great that the subject wholly fails to appreciate the meaning of the simplest assistance rendered him ; he struggles violently, and resists attempts to dress or undress him, or to give him the necessary food. His violence is often so great as to expose him to the most serious risk of fractured bones, even from the best directed efforts to nurse and nourish him ; such cases are a source of the greatest anxiety in our asylums. The blind fury of these states remind us of similar states of excitement in the epileptic; and, as a fact, are frequently a sequence of epileptiform seizures or of attacks simulating petit mal. In the less acute maniacal attacks the characteristic delusional state of mind reveals itself. With beaming face and muscles, tremulous from emotions, he endeavours to fix the glorious but transient visions which float before his mind's eye; in rambling incoherent utterances he insists upon his wealth, his exalted station or future destiny. It will repay us to study a little more closely the nature of this, expansive delirium. In the first place the delusional state is the antithesis of the so-called monomaniacal delusion, which is essentially fixed in character, and is in itself a direct perversion of the individual's intellectual life. The grandiose conceptions of the general paralytic ai"e wholly difierent in their nature, and are the direct outcome of an unrestrained imaginative faculty, no longer subject to the coercion of the reason. Those standards of objective reality which a life-long experience and knowledge may have established, no longer exist for him, or are clouded by the mental storm ; and the only criteria of truth perceived are the subjective impressions aroused by the morbid excitation of his imaginative sphere of life ; there is no reason why he should doubt their reality, as no challenge can be giA'^en by the over- clouded reason, and so the sensuous procession of impressions pass by in cverchanging kaleidoscopic hues, uniting and reuniting in fantastic combinations, conjuring up visions of immortal life, of love, of beautyj of wealth, or of honour, or of all that mortal could desire. Challenge him iipon the absurdity of his statements and a momentary irritation may occur; but he readily wanders off" into his grandiose strain, asserting and reasserting with stronger emphasis still more extravagant delusions. •256 r.EXERAL PARALYSIS. It is in these states that the enfeeblement of attention, is pre- eminently noticeable ; faulty it was in the earlier stage, as we saw in the resulting nmeraonic lapses and amnesic states ; but, its failure now is a far more serious matter. The contrasting faculty of the mind, whereby a rational judgment can be formed, must decline with this enfeebled attention, since it depends for its existence upon the vigour of the latter. This failure of attention can be occasionally elicited in a remarkable manner as regards certain special mental operations. It is readily observed upon testing this faculty that it occasionally fails more with certain mental operations than with others — naturally with those less habitual to the subject — and, if we continue to test the patient in this direction, the strain becomes at times intolerable, and has a strange result. Thus in a patient, who was garrulous and optimistic, talking incessantly upon the subject of his " coursers and blood-horses," it was detected that he could not direct his attention to simple numerical calculations without much painful effort ; upon one occasion, therefore, when his attention was forcibly directed towards a simple sum of addition, after giving a wrong answer once or twice, the effort resulted in a sudden (but transient) loss of consciousness, a twitching of the facial muscles and rio-ht hand, and an aphasic state lasting some five minutes after re"-aining consciousness. The following day a similar test was applied to this patient with identical results, except that the convulsive dis- charge was spread over a wider range. Beyond the fact that the delusions of the general paralytic are so transient and variable, there is their simple, sensuous and fragmentary nature to be noted ; they bear no logical connection the one to the other, and are therefore most incongruous and self-contradictory. Then, again, such delusions are simple assertions, the general paralytic does not reason out his delusive concepts, or attempt to erect a system of belief thereupon ; he simply asserts, reasserts, and never attempts a proof. Herein again we see the distinction between his delusions and those of the monomaniac. In normal states the imaginative faculty, however active, if duly controlled by reason, may find its expression in poetic imagery or on the painter's canvas ; but in the case of general paralysis, emancipated from such guidance, its vagaries become so astounding that they defy expression. We all know how the very indetiniteness of emotional states renders their expression by language difticult, and at times impossible ; and how, in contrast with the feelings, the subjects of exact knowledge find a ready medium for their expression and elucidation in the faculty of speech. The mental life of the general paralytic at this stage is so far made up of sensuous feelings and their residual emotions, that he wholly fails DELIRIOUS CONCEPTIONS — FACIAL STOLIDITY. 257 to his own satisfaction, to express by language what rises before his mind, liis feeling and mental imagery are illimitable, and submit not to the definition of words. Thus, in each repeated utterance, he tries to rival his former extravagance ; he has not simply millions, but "thousands of millions of millions of millions." The nature of our patient's occupation, and the subjects which have chiefly engrossed his mind, will usually afford material for these delirious conceptions ; thus, a poor labourer who through years of anxious toil has struggled to support a large family believes that he has accumulated enormous wealth — "is heir to extensive domains, and his children princes of royal blood ; " another, a schoolmaster, talks on schemes of universal education. One who had squandered his means upon the turf was the imagined possessor of twenty hunters which he had just sold for £350 each; another, a poor carter, is possessed of a magnificent team of horses, each of which he calls by name, and excitedly smacks an imaginary whip, as he drives them on in mad career. One who had occupied a foreign diplomatic post had conceived extraordinary schemes for developing the industrial and mercantile resources of all the European nationalities. Some are agitated by vast philanthropic schemes ; one of our patients was going to empty all the prisons, asylums, and workhouses in England, and start each individual afresh in life " upon a sovereign each ; " another intended paying off the National debt. The exuberant welling-up of feeling transforms the status and surroundings of the subject without affecting his real identity ; he still retains his name, but is now a duke, a king, or emperor ; his wife and children still are his, but are exalted into corresponding dignities ; whilst the asylum is a gorgeous palace, the nurses or attendants transformed into princes or courtiers. Fantastic decoration is much indulged in, especially by the female paralytic ; scraps of coloured stuffs, ribbons, and coloured paper are stitched on to their clothing as insignia of distinction, or as an addition to the attractiveness of the subject. The sexual charac- teristics are prominently developed ; the female, especially, betraying much personal vanity or much self-consciousness in the presence of the opposite sex ; she is often engaged on matrimonial alliance ; connubial subjects occupy the chief theme of her delusions ; and, occasionally, a well-marked erotic state prevails. On the other hand, the male paralytic raves upon wealth, property, social position, pro- fessional attainments, manual dexterity, artistic ability, muscular power, and endurance. The variety and transient nature of these delusions ; their utter silliness, impossibility, and inconsistencies, in- dicate a serious degree of dementia in which an enfeebled attention and an unbounded license of the imaginative faculties coexist. The 17 258 GENERAL PARALYSIS. associated excitement may at times be in abeyance, to be called up readily upon the slightest reference to optimistic or grandiose sub- jects, when the stolid, half-vacant impression lightens up into a look of fatuous rapture as he pours out his delirious notions. Even in the calmest moments an undercurrent of excitement usually exists, especially manifested in restless, purposeless movements and mis- directed energy, with nocturnal exacerbations, during which he is noisy, destructive of clothing and bedding, and dirty in his habits. It is at this stage of our enquiry that two groups of physical signs become prominent features ; present as they may be in the earliest stage of the disease, they are, however, almost invariably found at this period. They consist in certain articulatory troubles and oculo- motor paralysis. Grandiose delusions with maniacal outbursts, a delire ambitieux, are by no means an unusual feature in some other forms of insanity; but when to this delirium there is superadded a tremulousness of the lips, an inco-ordinate ataxic state of the tongue, and certain pupillary anomalies, the diagnosis of general paralysis is next to conclusive. The facial expression of the general paralytic is characteristic ; when unmoved by emotional excitation there is great stolidity, with a somewhat vacant demented aspect, but when roused into conversation the face beams with emotional excitement, the lips and facial muscles become tremulous, and twitchings of the muscles of the brow are noticeable. The tremulousness of the lips is well compared by Dr. Bucknill to the like tremulousness in a person about to burst into a flood of tears. An uneasy fixity of the lips is noticed in some, and a tendency to place the hand over the mouth whilst speaking, in full consciousness of the failure. When the tongue is protruded, it is with ataxic jerks or irregular inco- ordinate movements ; and a fine fibrillar tremor will be perceptible whilst it is extended. In advanced cases the tongue will be protruded only with great effort, the mouth being widely opened, the eyes staring, and the whole head trembling and unsteady with the effort expended. The articulation is now distinctly impaired. Articulatory Troubles. — The character of the articulation is distinctive; it is slowed, hesitating, blurred, approaching that of a drunken man ; its utterance is broken, syllaT)ic recurrences are inter- polated, and the difficult enunciation may end in an explosive effort. In the early stages of the disease, however, a slow, laboured enuncia- tion, with slight blurring of consonantal sounds, may be all that is recognisable ; but, upon excited converse, as when rallied on the subject of his delusions, the impairment may be at once exaggerated and accompanied by the characteristic treinor of the upper lip. It is the labial and lingual utterance which suffers chiefly; and, if present. ARTICULATORY TROUBLES — CEREBRAL SEIZURES. 259 it is at onco manifested by requesting liiui to repeat any alliterative doggrel; to repeat distinctly such words as hippopotamus or peram- bulator. The paralysis of lips and tongue advances in later stages to a more profound degree, and attempts at speech issue in an inarticulate muttering of broken unintelligible jargon, in which here and there some woi'd is recognised. "Cerebral Seizures." — During this stage, or later still, the patient may be subject to convulsive, apoplectic, or paralytic seizures ; and very few indeed pass through the descending series of dissolutions of general paralysis without suffering from one or more of these accompaniments. Such "seizures" are — Syncopal or quasi-syncopal attacks. Epileptiform discharges. Petit mal, or, exceptionally, grand Apoplectiform (or true congestive), mal. attacks. Limited (or unilateral) twitching. Hemiplegiae and inonoplegise. Syncopal Attacks. — These are by no means infrequent during the progress of general paralysis, and are often the first warnings • given of a failing heart, and of the necessity for keeping the patient in bed. Thus a patient taking his customary meal will suddenly turn pale and fall forwards ; his pupils are dilated, his pulse imperceptible, and the skin cold and damp ; no convulsive twitching occurs, and after a momentaiy prostration, he rallies and recovers his former state. Such patients demand rest in bed. Attacks of jjeiti mal are occasionally mistaken for syncopal attacks, and reported as slight *' faints " by the nurse or friends. Epileptic Seizures. — These are of frequent occurrence, yet by no means so frequent as the epileptiform and limited convulsive attacks. They also occur in early stages of the disease, and are usually referred to by the friends of the patient as slight faints. Attacks of the nature of j^^tit mal are the more usual. They are characterised by very transient loss of consciousness preceded by pallor, wide dilatation or pupils, and perhaps a slight twitching of one side of the mouthy followed Ijy much confusion of thought, obvious in inconsistent speech, and conduct ; or by more prolonged automatic states. J. F., March 21, 18S1, seized this morning with convulsions, which occur every ten or fifteen minutes, and are identical with epileptic seizures, except that the convulsions are chiefly unilateral, involve the chest muscles but slightly, there being also no lividity of face nor obstructed breathing ; each attack hists for thirty seconds or thereabouts. The convulsive phenomena in their sequent stages were as follows : — 1. No pallor, but head and eyes deviate to the right ; there is a broken inarti- culate cry ; the pupils dilate widely ; the brow is raised by the occipito-frontalis. 260 GENERAL PARALYSIS. 2. The mouth is drawn to the right, lips twitcli strongly and uncover the canines. 3. Riglit arm flexed, with forefinger extended ; then raised and convulsively jerked at shoulder ; tiie brow twitelies violently. 4. In certain seizures the discharge spread to the right leg also, but did not involve the left. After the fit there was paralytic deviation of head and eyes to the left and notable helplessness of the right arm ; the left pupil was much larger than the right, but slowly regained its former size ; there were champing movements of the jaw ; no exaggeration of patella-reflex ; no ankle-clonos ; at the onset of each attack the heart, previously beating strongly, became imperceptible during the tonic stage. The cry always precedes each attack. Limited or Unilateral Twitching". — Sudden, rhythmic twitching of the muscles about the mouth, or of the specialised groups of the hand, or of the forefinger and thumb of one side are very frequent, either alone or in combination ; or convulsive twitching of the flexors of the wrist or elbow may also be associated therewith. The various muscles of the thigh or leg may be observed picked-out by the con- vulsive discharge, or the whole arm or leg jerked spasmodically. Siich twitching is often increased by handling and passive movement of the limb. The limb may be fixed in rigid extension, whilst the toes or fingers are flexed by clonic movements. The muscular twitch- ing may be very general, involving both sides of the body (although unequally) ; and its duration may be protracted over days or even weeks without interruption. The following case illustrates this fact: — J. S., a general paralj'tic, was seized with convulsive twitchings of the limbs on the 25th of November, 18S6. His face was flushed and the skin covered with a greasy unctuous sweat. Both arms, but especially the left, are continually and consentaneously jerked by the convulsive twitching of the extensor group for the elbow and wrist, the fingers of the left hand are suddenly spread as in the act of playing the pianoforte ; the toes also show a tendency to "spread," the feet being rigidly extended, whilst there is almost continuous clones of both ankles, especially increased by flexion of the foot ; if, during a period of partial cessation of this clonic state, the sole be irritated by a pin, clonos is again briskly established. There is a notable degree of the "paradoxical contraction." The superficial abdominal reflexes are dulled. Tache cerehrah is rapidly produced, and is vivid over all parts of the body. Both conjunctivre are injected ; both pupils show mydriasis, but the left is larger, and both are fi^ed to a bright beam of light. Bowels and bladder paralysed. Patient is greatly demented and quite 7nute. The following day the twitching was limited to the left foot and hand; the same expansive movements of the digits occurring. November 30, 1886. — -The convulsive twitching of the left hand and foot remains unchauged ; the plantar reflex is greatly exaggerated and hj-per-sensitive. April 16, 1S87. — The movements above described have continued up to this date (nearly five months) without interruption, but are now gradually declining. The above was of course an instance of such ccfevulsive movements VARIED CONVULSIVE AFFECTIONS. 261 ill an advanced stage ; but similar seizures may occur at a very early period of the disease. The convulsive twitching is usually associated ■with a certain degree of reduction in consciousness ; and, when the discharge involves the right side of the face and hand, aphasic states may prevail, and a certain degi-ee of WOrd-blindness or deafness presents itself. EpileptifOPm Seizures. — Under this term are comprised general convulsive seizures, or convulsive discharges fx'om motor centres, representing large associated groups of the musculature of the body and limljs. Such attacks are often ushered in by premonitory twitch- ings, such as those just described ; they ai-e not, as a rule, accompanied by complete loss of consciousness. The convulsion or spasm may start, as indicated by Mickle, " from some point as it were, becoming widely spread and severe, then ebbs away and ceases evei-ywhere except at the starting point, usually the mouth, eye, or hand, where occasional jerks are seen which may gradually die out ; or, on the conti'ary, the preceding cycle of events may be repeated, or the renewed convulsion may chiefly affect the other side." * The onset of the attack is almost invariably hemispheric — i.e., the convulsions begin unilaterally, and may or may not spread to the opposite side ; they are often preceded by a well-marked tonic stage as the rapid pi'imary discharges occur; the clonic stage being often long jjroti-acted, becoming more and more broken-up into intervals of comparative rest until at last an occasional convulsive jerk of the limb or separate muscular contractions alone prevail. Another form occasionally met with is that of an associated move- ment of the head and arm ; the head and eyes turn as if looking over the shoulder, the pupils dilate widely, and the arm of this side is simultaneously raised in the same direction with the forefinger ex- tended, and a painful cry escapes tlie patient. This movement may be repeated over and over again for hours in succession. It is important to recognise this form as occasional in general paralysis since it has been afiirmed that the cry is a distinctive feature, thus : — "Patients in the fits of general paralysis seldom bite the tongue, the convulsions are not so violent, there is not the aura, nor the cry, and the mental symptoms will of coui'se be quite different." f (Blandford). These convulsive attacks will be followed by the usual results observed after severe discharges from cortical grey matter. There will be partial, or more or less complete, paralysis of the muscles involved; the facial muscles may be involved, the cheek flattened, and the mouth drawn to the opposite side ; there may be more or less g'loSSO- * Treatise on General Paralysis, p. 163. t Op. cit., p. 266 (Italics not in original). 262 GENERAL PARALYSIS. pleg'ia, or the patient may be completely aphaslc with right brachial monopleg'ia ; or the log only may bo tomporarily paralysed, or hemiplegia may prevail. Conjug'ate deviation of the head and eyes is also frequent as a })Ost-convulsive sign. Epileptiform seizures may occur at an early period of the disease, usually not until twelve months have elapsed. According to Dr. Newcoml)e, out of 100 general paralytics, 51 patients suffered from epileptiform seizures, and of these 51, as many as 19 did not develop such symptoms until between twelve to twonty-fuur months after the commencement of the disease, whilst one only had convulsions within three months of the onset.* The immediate result of these general, wide-spread, epileptiform convulsions is of far greater import as affecting the mental aspect of oiir patient. They usher in the gravest reductions, often leaving the subject a complete mental wreck. Take for instance the case of H. P., who was in the second stage of general paralysis, was mildly excited, and the subject of extravagant, grandiose notions, yet retaining a fair amount of mental energy sufficient to enable him to read, write, or to converse in a connected strain of thought, so long as his delusional ideas were not entrenched upon. He was suddenly seized with epileptiform convulsions, commencing on the left side of the body, but usually spreading to the opposite side ; such seizures occurring several times in the course of the day and night, and lasting for several days together. On their cessation he was left in a condition of profound imbecility, from which he never rallied. In his case, persistent and copious watery alvine evacuations accompanied tlie convulsive attacks. The mental deterioration following epileptiform seizures is often so notable as to sharj)ly demarcate the stage of maniacal excitement and delusional perversion from the last stage of hopeless dementia and motor helplessness. The epileptiform seizui*e is also ominous of rapid break-down ; " in twenty-four out of sixty cases, death occurred within a month after an attack" {N/'wcomb'').j Apoplectiform Seizures. — The patient may be struck down suddenly by symptoms of an apoplectic type, associated occasionally, but by no means necessarily, with slight convulsive discharge. He becomes helpless in his limbs, heavy, lethargic, and stupid, and this state may deepen into complete coma. The face is deeply flushed, the head hot, and the body generally bedewed Avith perspiration ; the breathing may be heavy and laboured, the jnilse rapid, and the temperature quickly rises to 103° or higher. The condition is always * See "Epileptiform seizures in general paralysis of the insane," Went Iiidinj Asylum Reports, vol. v. t Loc. cit. PARALYTIC SEIZURES — REACTION-TIME IN GENERAL PARALYSIS. 2G3 a critical one, there being hypostatic engorgement of the lungs and pneumonia threatening the patient's life; if this is not fatal, it is always followed by serious results — viz., by various motor paralyses, the advance of dysphag'ic symptoms, and by much increased mental enfecblement. Monoplegiae and Hemiplegise. — Paralysis suddenly occurring without apoplectic or epileptic premonitions involving one or both limbs, or complete hemiplegia, of very transient duration, is another feature frequ.ently occurring in the course of this disease. The sudden- ness of onset is notable ; the hand drops whilst at work utterly helpless; or the patient suddenly stumbles whilst walking, and is found paralysed in one leg ; the deep reflexes will be exaggerated and ankle-clonos prevail. Patients will thus be found after a quiet night's rest suffering from a CPUPal or a brachial monoplegia which may have com- pletely disappeared in a few hours or days. Reaction-Time. — A large proportion of paralytic subjects are necessarily excluded from attempts at estimating the rapidity of reaction to the stimuli of light and sound ; it is only in the earlier stage of the disease, ere the patient has succumbed to any notable degree of dementia, that a reliable record is obtainable. Such results, however, have been secured in the accompanying series of patients, special care having been exercised to exclude any source of fallacy, the result being accepted only after repeated observations, and each record being the average of twenty trials. Reaction-Time in General Paralysis. T. P., . Maniacal, garrulous, egoistic, W. W. , . Subacute mania, grandiose, noisy, and obtrusive, J. M., . Calm, subdued, demented, .... W. L., . Wild, maniacal, incoherent,exiravaga7it optimism, J. E. , . Subacute mania, grandiose and egoistic, T. S., . Tremulous with excitement, oiitimistic, notable x>aresis, R. C, . Calm, notable bulbar pai-alysis, much optimism, S. M., . Calm, dull, heavy, demented, J. N., . Heavy and demented, depressed, much paresis, C. P., . Dejnessed, obscure egoism, sluggish, W. II., . Mania, garrulous, obtrusively egoistic, . T. E.., . Cheerful, calm, slight dementia, on optimism, F. L., . Heavy, demented, ..... Ace Stii ustic nulus. ec. Optic Stimulus Sec. 16 •25 17 •24 17 •24 IS •IS IS •21 ?, 18 •27 19 •23 19 •24 20 •27 21 •27 22 •23 24 •30 •o.:^ .07 OculO-motor Symptoms. — The eye-symptoms in general paralysis form a highly characteristic and significant group. Both the extrinsic 264 GENERAL PARALYSIS. and intrinsic muscles suffer ; but, whilst the former present derange- ments in exceptional cases only, the lattor or intrinsic muscles of the eyeball exhibit deranged innervation, in some way or other, in all cases at some stage of the affection. The motor derangements of the intra-ocular musculature are indi- cated by — (a) size of pupils ; (b) inequality ; (c) marginal contour ; (d) mobility; (e) reflex adjustments; (/) accommodative adjustments; (g) accommodative power. The reflex adjustments (e), comprise the pupillary reactions to — (1) cutaneous or sympathetic stimulation; (2) consensual stimulation; (3) direct light stimulation.* Taking indiscriminately a group of general paralytics in various stages of the disease, the student may meet with one or other of the following pupillary anomalies : — The pupils may be extremely small, perfectly fixed to light, so that on exposing or shading the eye, no movement can be obtained — the pin-hole pupil as it has been called; and it is then said to be in a state of spastic myosis. Such a state of contraction is highly important, as being frequently present in general paralysis, locomotor ataxy, and other spinal afi'ections. The pupil may be small as the result of paralysis of its dilator or circular fibres; this is called paralytic myosis, and may be due to a des- tructive lesion in the cilio-spinal regions of the cord ; in this case the pupils no longer dilate with atroijine. It is a rare affection, but has been recorded by Baerwinkel in sclerosis of the medulla oblongata.t Unilateral myosis of this description has also been recorded by Nothnagel in disease of the pons. The pupils may be unequal in size, there may be only the slightest degree of inequality, yet if associated with other paretic symptoms, or suspicious mental states, the ocular reflexes should be carefully examined ere the student is pi-epared to discard such inequality as of trivial import. Care, of course, should be taken to exclude opacities of cornea, capsular adhesions, or retinal changes. The inequality may be very extreme from paralysis of one sphincter iridis. One or both pupils may be in a state of wide dilatation, acting sluggishly, or not at all, to the strongest beam of light — a state of paralytic mydriasis. Such a condition may be associated with amaurosis. Or the pupils may be (one or both) ii-regular in contour ; may be * It must be miderstood that the remarks in this chapter apply exclusively to those persistent or gradually progressive impairments of the oculo-motor adjust- ments, wholly irrespective of those variations in tlie size of the pupil which may occur from day to day, and which inchule an inconstant factor, such as intra- cranial discharges, &c., or other source of transient stimulus. + Jour. Mental Science, 1878. PARALYSES OF INTRA-OCULAR MUSCULATURE. 265 oval or not quite circular — the upper or lower arc not conforming to the circular outline; here, again, we must carefully exclude adhesions and effects of old iritis. At times the irregularity is very marked and bizarre. Again, the reflex adjustments may fail, and thus upon stimulating the skin by the electric brush, or by a pin, or by pinching the skin, we do not observe the usual dilatation of the pupils in one, or perhaps in either case ; or upon alternately closing one or other eye, the other fails to exhibit the consensual movements of the normal state ; and this, likewise, may be observed in one eye only or in both. In a state of sjmstic myosis, of course, both the foregoing reactions are abolished. " In the healthy eye the consensual contraction, according to Listing, does not begin until two-fifths of a second after the opening of the other eye, and lasts about one-fifth of a second, after which the pupil again dilates slowly, and vibrates for some seconds. The consensual dilatation he observed to commence about half a second after the closing of the other eye, and with diminishing rapidity to continue for one or two seconds."* Then again, the sphincter iridis, either when, the pupils are equal or very dissimilar in size, may not respond to the stimulus of light, or may respond with a sluggishness evidently morbid. This condition of failure of the light-reflex without a similar impli- cation of the accommodative movements of the iris is called reflex iridopleg'ia, or the Argyll-Robei-tson symptom, which is one of great significance in early stages of tabes and general paralysis. Yet again, the sphincter may show no response to light, nor to the effort of accommodation, nor the movements of convergence and divergence; and the resulting paralysis we speak of as an associative iridopleg'ia. Any one of these numerous anomalies may present themselves in the subjects of general paralysis. The contraction which occurs during accommodation for a near object, and when the eyeballs are convergent, must be regarded as of the nature of an associated movement ; yet we must not understand by this that the accommodative movement is involuntary. " The fact that this last (contraction during accommo- dation) is only an associated movement, does not deprive it of its voluntary character, "t The more frequent motor derangements met with may thus be summarised : — 1. Spastic myosis. 5. Loss of sympathetic reflex. 2. Paralytic mydriasis. 6. Loss of consensual movements. 3. All degrees of irregularity of pupil. 7. Reflex iridoplegia (Argyll-Eubertson). 4. Irregular contour from partial S. Associative iridoplegia. spasm or paralysis. 9. Cycloplegia. * Quoted by Bonders, "Accommodation and Refraction of the Eye," Stjil. Soc, p. 573. t Donders, loc. c'U., p. 574. 2GG GENFKAL PARALYSIS. As to the relative frequency with which tliese derangements to the iritlo-inuscular apparatus occurs, we usually find as an early sign a slight, perhaps scarcely appreciable, inequality of the pupils, the sizes of M'hich are otherwise not abnormal, accompanied by a little sluggish delay upon the part of the larger in reacting to light, while the smaller contracts and dilates briskly. If the light be bright this want of active mobility may not be appreciable, hence the necessity of testing in a subdued light as well as by focal illumination. If the patient be now told to converge the eyeballs, the pupils con- tract readily and equably, and we regard the case as one of com- mencing reflex iridoplegia. If this be the case, we shall now almost certainly find associated with it, the loss of the sympathetic dilatation which should occur on irritating the skin ; for this is, of all other iridal paralyses, the earliest observed. The strong stimulation of a sensory nerve is well known to inhibit reflex actions ; and upon this physiological principle, Bechterew would explain this pupillary dilata- tion as, in fact, an inhibition of the usual light-reflex ; it is equally produced by noises in the ear, or by stimulation of the sexual organs, uterine pain, kc. The constant association of these two anomalous states is readily explained by the proximity of the sympathetic tract supplying the dilator iridis to that nucleus of the oculo-motor which regulates the sphincter iridis imder the stimulation of light. The large proportion of paralytics who present themselves in an early stage will afibrd us these signs — viz., a moderate-sized pupil, slightly larger than its fellow, sluggishly reacting to light, even to a bright beam, and absence of the sympathetic dilatation. In the more advanced stages, the larger puj^il will now be found quite fixed to light or may contract very partially ; and, if a strong beam of light be used to illuminate the eye, the initial slight con- traction is followed by a sudden dilatation beyond its original limits ; remaining wide throughout the illumination of the retina. One eye succumbs to this reflex iridoi")legia before the other ; but, we often recognise a failing mobility in the healthier organ also, and eventually both become quite fixed and immobile to light. The small-sized pupil {myosis), although usually noted at an early stage of the disease, is not thus restricted ; it may retain this size throughout the disease, and be a notable sign even to the fatal termination. On the other hand, mydriasis, if not associated with distinct amaurosis, is a feature of the later stage of general paralysis. The student would do well, when examining the eye of a presumed case of general jiaralysis, not only to measure with the pupilometer but also to compare the dimensions with the healthy eyes of those standing by, under the same intensity of light. As the small pupil in the early days of general paralysis PUPILLARY ANOMALIES. 267 becomes gradually larger with advancing reflex iridoplegia, it afTords us evidence of a deeper implication of the nuclei in one half of the pons, as loell as of the cerebral hemisplcere of the same side ; for it has con- stantly occurred to the writer to observe that when unilateral convul- sions or paralysis occur in the early stages of general paralysis, the dilated pupil is 07i the side of the discharging/ or 2y<^i'(d!/sing lesion* It appears to us unquestionable that the oculo-motor disturbances, Avliich we have above alluded to, are greater on the side of the more deeply-implicated hemisphere. The pi7ihead jmjjil may 2:)ersist to the end, and yet present no impair- ment of the associated movements on accommodation, as in the followinc: cases : — Size of Pui'Ils. Reaction to Stmpathetic Light. Beflf.x. consf.kscal Bf.flkx. Accommodation. D. K. S. A. L. 1 .,.- millimetres. 1 o 1-5 1-7^ millimetres. Immobile. Immobile. Immobile. Immobile. Immobile. Slight in left only. Normal and ac- tive. Brisk. In estimating the significance of these ocnlo-motor anomalies, the student must bear in mind the teaching of experimental physiology upon the subject, which demonstrates (1) That centripetal retinal excitations travel by way of the optic nerve and tracts to tlie upper quadrigeminal arc, i.e., by the nates, its hrachki, the external geniadate, and the pjtlvinar of the optic thalamus, which constitute a first stage or level, and from which such excitations pass by the optic radiations to the occipito- angular region, or visual centre of Ferrier. (2) That section of one optic nerve causes monocular blindness, together with loss of the light-reflex {reflex iridoplegia) of the same eye, still with persistent contraction of both eyes on stimulation of the second eye — a phenomenon explained by the coupling of the oculo-motor nuclei. (3) That section of one optic tract issues in homonymous hemiopia, from paraly- sis of the corresponding retinal halves of both eyes. Whilst Bechterew shows that, in the dog, division of one tract is unaltered by reflex contraction of the constrictor iridis. Knoll indicates that in the rabbit (with its complete decussation at the chiasma) division of one tract abolishes the light-reflex in the opposite eye. (4) That enucleation of one eyeball in animals with fairly complete decussation at chiasma (rabbit) issues in atrophy of the nates, its brachia, and external genicu- late, with the pidvinar, all of the opposite side ; that in animals with very incom- plete decussation, i.e., where the direct fibres preponderate (Erh and Day), such atrophy pertains more equally to these parts on both sides. The representation of the retinal fields in these ganglionic centra Ijehind the optic commissure will vary with the animal ; and so lesions of the tract or of the quadrigeminal body of one See Article by Author in West Biding Asylum Reports, vol. vi. 26S GENERAL PARALYSIS. side will issue in varj-ing results. Thus Baunii,'arten * records secondary degener- ation of both optic tracts in man after destruction of one eye. In this lower arc, therefore, connecting the retina with the mesencephalic centres, we find that section and destructive lesions on tlie peripheral side of the ganglia issue in — Partial or complete amaurosis, with partial loss of the consensual reflex and reflex -iridoplegia. Homonymous hemiopia, with, or without, impairment of light-reflex ; certain secondary degenerative changes affecting the tracts and the (juadrigeminal structures with the pulvinar alluded to above. In like manner, destruction of these ganglia also issue in degenerative changes in both optic nerves, especially that opposite the lesion. Such degenerations are limited to this arc, and do not travel centralbj beyond the quadrigeminal centres to the cerebral cortex. On the other hand, the upper arc of optic radiations is connected with the visual perceptive centres of the cortex. Its division is followed by atrophy of the cortex and of the quadrigeminal arc, as well as of the lower arc connected with the retina ; but it must be remembered that the retinal reflexes are not abolished by lesion above the mesencephalon. Size of Pupils. — The pupillary aperture is more frequently found dilated than unduly small and constricted, and a moderate-sized pupil is less frequent than one distinctly larger than usual. In fact, if "we take note of all cases of unilateral mydriasis, as well as of those wherein both are dilated, we shall find that it is met with in one- half of our cases. If we arbitrarily assume any size up to 2 milli- metres diameter to include the small or contracted 2)^2^11, from above 2 millimetres to 3 millimetres for the moderate-sized 2iU2^il, and all above 3 millimetres as large dilated pupils, we get the following propox'tions : — Small contracted pupil, .... 4 cases. Moderate-sized, . . . . . . 13 ,, Dilated, ^7 „ In about half the cases, i.e., in twenty-one, one or both pupils measured -i millimetres or upwards, and in six of these cases both pupils were equal in size. Very large pupils — 6 to 7 millimetres — prevailed in three cases (see Summary, pp. 269-273). In the Summary, the upper figure of the fraction in col. 2, and corresponding line in col. 3, indi- cate in each case the size of pupillary aperture and iridal reactions of the right eye ; the lower figure and line refer to the same features in the left eye. In all other cases the i-eactions are alike for both eyes. * Central-hlatt. f. d. Med. Wisaenschajt, 1SS3. (Quoted by /erncr.) ANALYSIS OF OCULAR DERANGEMENTS. 269 ^ s S30 Gi 1(0 ,—< Ol CI '^O O -* CO C5 CO CI p4 -f 1 — 1 (-. PM *^ a CO t- (M o -# CC ^ Ph ^ d S^ >-o Ol 0) 'O -t< CO i.O 05 • ? 'h rfl Ol 0-1 CO o ■o -f « f— 1 01 Ph "3 !>• (N ^ 1— 1 o C5 CO CI CM g- Q 4^ J ■4J 5* as 0) ,^2 to 'Ed ,53 to .S« nQ <1 J= o ia 'A "^J -51 >. ■yj l4 M f^ j3 J fcj &D >. ^ nO p< +J ^ 3 (U o ^ :; o w pq ^ M > pq M ^- T3^- lO lO CO o c^ "^^ ■* "* CO CO CI g c ^ ^H CO (—1 o 53 Ph So lO (N (M 00 (M CO -' _J^ ^ so UO VO eo CO CI x2 f!co TfH ^ 1— 1 CO CI «3 f^ « CO (M (>) iO CO 1—1 ^ ^ gr-l lO (M CO CI 3 TjH CI o LO CO CI 3 o Pi C5 CM 1— I ^ ^ o ^ rH ^• § a C^ C5 t- CO (N ""* (M o o C^ 4J "S ^ s ^ 0) g O m 5 'S. ;i. - -u so -i-J" ^ 'l ^-• "oj 3 CM 1- ■ 02 Is g S-l +i g o ^ ^ ^ o o X W :z; ^ <1 a a 3 P4 f4 270 OCULO-MOTOn ANOMALIES. Summary of Oculo-Motou and Associated Anomalies in Size iu mm. Light-Uenes. Focal Illuminatioa ConsensuaL Ilenex Dilatation. Associated Movement J.W. M., 45- 3 Almost fixed. Slight contii. Slight contn. Normal. Fixed. Normal. J. 0. 0., 3 4 Slight. Normal. Slight. Normal. >> >> >> M. P., . 2^ 4 Normal. Normal. >, >> >> A. S., . 34 44 )> ,, Sluggish. )> Sluggish. J. D., . 4 H Sluggish. Slight, then oscillates. 2dy dilatation. Normal. Normal. Normal. M. B., . 3 3 Normal. Normal. >j Fixed. >» L. B., . 24 " Normal for both. 2dy dilatation. >. Normal. »> F. S., . 4 4 )) Normal. > > Normal. Sluggish. >> K. T., . 3 >y " Normal. Dilates. Sluggish. >> S. S., . 2 2 " > J Normal. Normal. >> J. P., . 3i - jj " Fixed. >> J. w., . 3 3 Sluggish. Normal, then oscillates. 2('y dilatation. >) Normal. Normal. Sluggish. J. L., . 9L 3 Sluggish and of limited range. Normal but of limited range. ,, Slight. NormaL R. S., . 91 24 Fixed. Slight. Slight. Normal. )> Normal. )> A. H., . S. A. L., 2 3 1-5 1-5 Fixed. Fixed. Sluggish. Fixed. Fixed. Slight. Fixed. Slight. Fixed. Slight. Fixed. Fixed. Slight. NormaL D. R., . 1? 14 >> >) Fixed. >i >i J. W., . If >) Fixed or of extremely limited range. " " Extremely sluggish and limited. G. B., . T. W. H., 2 ol -4 3 " Fixed. 19 >» >» >> »> NormaL J. C, . 24 " »» 1 i )> >i oculo-motoii anomalies. Forty-Four Cases of General Paralysis. 271 Accom- modation. Visual Acuity. Colour fcjense. Patella- Kellcx. Plantar llelle.x. Gait, &c. J. 22 S"- 24 J- 22 ^"- '22 J. No. 4 J. No. 4 Sn. Sn. Normal. Sn. ? Sn. - Sn. Sn. ^ Sn. b No. 2 s».- ? dil. 6 J. 16 J ^ 28 J.No.3Sn.„" 2o Sn. 34 J. 1 Sn. 25 Sn. 30 J.No.lSu, 20 J. 1 20 Sn 2i 20 Sn. Sn. 10 6^ 12 Q 6 Sn. Sn. Sn. 30 10 10 Sn. - Sn. Sn.| Sn. Sn Sn. Sn. Normal but green = blue. Normal. Normal but b. = puce, y. " pink. Normal but b. = green. y. = orange g. = puce. Normal. Normal but green, more like blue than yellow. r. = pink, y. = purple, b. & green = Normal. Normal. Normal but green = yellow. Normal. Exag. Slightly exag. Sluggish. Normal. Sluggish. Almost absent. Exag. Normal. Absent. Sluggish. Normal. Exag. Normal. SI. exag. Slight. Absent. Absent. Normal. Sluggish. Normal. Absent. Exag. Normal. Exac. Absent. Exag. Normal. Normal. Sluggish. Normal. Brisk. Brisk. Brisk. Brisk, trunk stiff. Brisk. Brisk. Brisk. Brisk, and runs. Sways, staggers, and leans to right. Stiff, tottering, feeble. Brisk, but stiff, a little tottering. Stooping, staggering, and falls if eyes be closed. Brisk. Right leg stiff — not dragged ~ right hemiplegia c. aphasia, horizontal nystagmus. Stiff, slow, sways. Brisk, elastic. Brisk and springy. Slow, laboured, leans to left side. Brisk. Stiff. Stiff. OCULO-MOTOU ANOMALIES. Size In mm. Light-Reflex. Focal Illumination. Consensual. Ri-flet Dilatation. A880ciat«d Movement. J. H. W., 2? Fixed. Fixed. Sli-ht. Fixed. Fixed. Normal. B.K., . 34 >) II Fixed. )» Fixed. W. M., . 3 3 »» >i )i >i II C. J. C, . >> II M >) Fixed. Normal. J. J., . 4 j> II )l >> Sluggish. J. H., . 4 3 » 11 11 )) Fixed, Normal. J. L., . 4^ 44 ,, >» ,, ,, Fixed. J. C. C, 64 6 »> II 1) u II J. M., . 7 5 )j II .' M II J. A., . 34 4| Slight, 2'ly dilatation. Fixed. II ,, ) I ?dil. E. B., . 2i 1^ Fixed. Slight, 2Jy dilatation. Fixed. Slight, 2iy dilatation. 5) ,, Normal. J. H., . 34 Sluggish. Sluggish. 2'ly dilatation. Slight. Normal. Slight. .. A. S., . 4 4 Normal. Sluggish. Normal. Sluggish, 2'ly dilatation. Fixed. Fixed. 1) J. T., . T. T., . 4 M 4 4 Sluggish and of limited range. Sluggish and of limited range. Sluggish. Sluggish. Normal. Sluggish. Sluggish. Fixed. Sluggish. Slight. >> C. G., . 6 6 Sluggish. Normal with 2''y dilatation. >i Sluggish, Fixed. Sluggish. J. M., . 2i Slight with 2'ly dilatation. Slight with 2 Normal witli 2'ly dilatation. ,, )) i> W. T. S., W. S., . ■1 44 4.^ 4i 3? Slug-ish. Sluggish. Sluggish. Normal. Sluggish, 2'ly dilatation. Normal, then oscillates with 2'ly dilatation. Normal. Sluggish. Sluggish. Sluggish, Sluggish. Fixed, Normal, Sluggish. Normal. H. M., . 3 2? SlUfT-ish. Fixed. Normal. Fixed, Normal. Fixed. Fixed. Slight. Fixed, B. H., . 4 3 Slight. Slight. Slight. >> Normal, 'J. B., . 44 44 Slight with 2'ly dilatation. Slight, 2'ly dilatation. Normal, 2'ly dilatation. )> 9 »} Note. —The upper figure of the fraction in col. 2 and corresjionding line indicate in each case the size same features in the left eye. In all other OCULO-MOTOR ANOMALIES. 273 Accom- modation. ^■i S°-20^"- 20 J. No. 1 Sn. "o J- 25 ^''- 2f, J. No. 2 J- 2^4 ? dilatn. ^^•27 ? dilatn. Sn. ;4 1/ S"-fs Visual Acuily. Colour Sense. Sn. Sn. 50 only Sn.^Sn.-*^ Sn. Sn. s°- ro ^"- (5 Sn. Normal. 2 19 5 21 J. J. J. No. 1 J. No. 4 J. 42 Su. Su. Sn. Sn. Sn. 10 18 _6 24 6^ 40 10 ^"•10 Sn.5 Sn. 30 Sn. ,; Sn. - b o Normal but gv. =': Normal. Normal but y. =? Normal. Normal but gr. = yellow. Normal. Normal but gr. = crimson, Normal. Normal but gr. = puce. Normal. r.itella- Itellex. Normal. Normal. Exag. Normal. Exacc. Absent. Exag. clonos. Almost nil, Exag. Absent. Exag. Normal. Sluggish. Normal. Exag. Absent. Normal. Exag. Exag. Absent. Absent. Sluggish. Exag. Plantar Keflex. Sluggish. Nonnal. Absent. Normal. Exag. Sluggish. Normal. Sluggish. Normal. Slight. Sluggish. Exag. Sluggish. Normal. Sluggish. Normal. Exag. Normal. Normal. Sluggish. Stiff, broad basis, heels down first. Legs drop, left hemiplegia = contrac- ture of left arm, cannot stand un- supported. Brisk. Leans to left side. Stiff. Brisk. Quick, elastic. Both lenses opales- cent. Brisk. Flexion and rigidity of both legs and right elbow; cannot stand. Adhe- sions in both, pigmentary deposit on front of lens. Stiff, waddling, but stands unsup- ported. Stiff. Heavy, tottering. Stooping, bent, unsteady, insecure. Left eye strongly convergent when eyes are directed to right. Brisk. Brisk. Brisk. Right leg dragged ; right arm con- tracted ; feeble gi-asp. Brisk. Brisk, spring}'. Stooping, shuffling, most hisecure. Stiff. Cannot walk or stand. of pupillary aperture, and iridal reactions of the right eye : the lower figure and line refer to the cases the reactions are alike for both eyes. 18 274 GENERAL PARALYSIS. Unilateral deviations were noted in twenty-seven cases, the remain- ing seventeen having pupils of equal dimensions. In sixteen cases the right, and in eleven cases the left, was the larger pupil of the two. Lig'ht-Peflex. — Referring to our table of actual figures, it is found that over 3G per cent, have hoth pupils 'perjtclhj immobile and fixed to the stimulus of light, and that half as many again, i.e., 18 per cent., show fixity or sluggish reaction in one or other eye. Further, in 11 per cent, both pupils were noted as excessively sluggish in reaction and limited in their range, and in 18 per cent, only could it be stated that the pupils reacted normally under the stimulus of light. The immobility of the pupils is rigid even to focal illumina- tion of the eye by a convex lens, and with a strong light — as many as 24 per cent, still exhibiting both pupils immobile. An early indication of commencing iridoplegia is given by focal illumination, for, as shown by the table, 13-6 per cent., although active to light, show (for a concentrated beam of light) a most limited range of movement, together with an oscillation which then tends to wide dilatation even under this bright illumination of the retina. This ten- dency to dilate during stimulation by light appears to me to be the earliest augury of coming pai'alysis. Consensual Movements. — These reactions were abolished in 43 per cent, of the total cases, and were almost invariably absent where the light-reflex was absent in both pujnls. A considerable number, however, of cases of incomplete or commencing paralysis to light showed perfectly normal consensual movements (25 per cent.), or but slight impairment, amounting to sluggish response or unequal response, on both sides. The failure of the consensual movements apparently never occurs apart from impairment of the direct or light-reflex (the only excep- tion, if it is one at all, is that of K. T., where very sluggish dilatation is noted with normal light-reflex): It appears invariably to follow upon the latter impairment, and thus we find in a few cases [R. S., e.g.), that the light-reflex is impaired, whilst the consensual activity is normal in both eyes. Reflex Dilatation {Erb). — This movement, which, as before stated, Bechterew regards in the light of an inhibitory action, fails at an early date. It was completely abolished in 63 "6 per cent., and normal response was obtained only in 11-3 per cent. Excitation of any avail- able sensory surface alike fails to produce response in such cases ; and, it is of interest to note, that unilateral failure of this reflex dilatation also occurs (being present in 13*6 per cent.) In several of the cases tabulated, it will be noted that this reflex dilatation failed where the pupils showed healthy and active response to the stimulus of light, REFLEX IRIDOPLEGIA. 275 both directly and consensually (see U. P. ; A. S. ; M. B. ; K. T. ; and J. P.) This anomalous condition we believe to be the earliest sign of approaching irido-raotor implication ; following in its wake comes the sluggish reaction of one pupil to light with a tendency to dilate on sustained illumination ; then a gradually extending paralytic mydriasis, with which becomes associated the impairment of consensual activity. Associated Irido-MotOP States. — The associated movements of contraction and dilatation of the pupil during the act of accommodation and eflbrts of convergence are affected only in the later stages of the disease; and in five cases only (or 11-3 per cent.) was it absolutely lost in both eyes ; whilst, as many as twenty-eight (or 63-6 per cent.) showed perfectly-normal response. It may likewise show unilateral impairment or abolition ; and in several cases i^F. B. ; C. J. C; A. H. ; and J. W.) with complete abolition of the light-reflex in both eyes, the associated iridoplegia appeared but on one side, the other pupil acting vigorously to convergent efforts.* From the study of a large number of cases of paralytics showing these oculo-motor troubles, it appears to us that — Firstly, the smaller pupil is upon the side of lesion of the oculo- motor nucleus, or the larger pupil is opposite to the nucleus involved. Secondly, that the smaller pupil is the one which fails to act con- sensually, if one only shows a faikire in this respect. Thirdly, that the smaller pupil is the one in which light-reflex is most impaii'ed or is abolished, if both are not equally implicated in this respect. If it be accepted that the path of the light-reflex is through the central decussating fibres of the chiasma to the opposite oculo-motor nucleus (the decussating opto-geniculate tracts), as well as to the constrictor centre of the same side by means of the intercentral link, then a lesion of one centre, say the right motor-oculi, will intercept the path of stimuli between, the left retinal field and both irides. But although the left eye can pass no stimuli to either constrictor jmpillce,. its iris can still be affected by stimulation of the opposite eye, through the crossed opto-geniculate tract, or even through the inter-retinal commissure. The left pupil, therefore, as well as the right, would be paralysed or fixed to direct light stimulation ; but whilst the left would still be consensually afiected, the right would be fixed to both in- fluences. The six cases afforded by our series confirm these A'iews in every respect. * It has been conclusively shown by Donders, as well as by De Ruiter and Cramer, that the associated contraction of the pupil occurs with the act of accom- modation, when there is no increased convergence of the visual Hnc, and also with the latter when there is no change in acconunodation, Loc. cit., p. 574. 27G GENERAL PARALYSIS. It thus appears tliat tliore are two links betwixt the quadri- geminal centres and tlie coi'tex. on tlie one hand, and tlie jieriphery on the other. An upper cortical und a lower or retinal — consisting respectively of the optic radiations from the thalamus and mesen- cephalon, extending to the occipito-angular region ; and a lower link from the retina to the mesencephalon ; the upper being essential for visual perceptions — the lower being also the centripetal paths for the irido-motor reflexes. Lesions of the lower retinal link are productive of secondary changes backwards to the quadrigeminal regions (Obs, 4, p. 267), but not beyond this limit ; lesions of the upi)er or cortical link cause degenerations, which spread both centrally and peripheri- cally, involving both cortex, optic tracts, and the intervening ganglionic centre. The immediate result of a lesion of one of the lower links is impairment of vision — either complete amaurosis or paralysis of the associated retinal tields [equatorial or liomonymous hemlojna), the irido- motor reflexes being involved only when the lesion is on the peripheral side of the chiasma. Since, howevei", the escape of the irido-motor reflexes depends (in this case, when the nuclei in the medulla are intact) upon the commissural connections, incomplete implication of both tracts must necessarily result not only in visual, but also in reflex- iridal, disturbances. On the other hand, the cortical, or upper link, when first implicated, has visual disturbances only for its symptoms, for the ii'idal reflexes are not involved ; and thus complete blindness with still active pupils indicates a blindness due to cortical lesion or one beyond the quadrigeminal bodies (this condition as a functional dis- turbance occurs, e.g., in urcemic poisoning). Eventually, however, the consecutive degeneration passing to the upper quadrigeminal and external geniculate bodies, etc., leads also to disturbances of irido-motor reaction. The individual nuclei, defined by Henson and Yoelcker as extending in front of the aqueduct, may, however, be picked out by morbid processes; and, in this case, the iridal reactions sufier without any necessary implication of vision, a condition frequently seen in the early stages of general paralysis. Spinal Symptoms. — In a large projiortion of subjects of general paralysis the failure in the vigour and co-ordination of the greater raxxsculatures comes on veiy gradually and insidiously ; the lower extremities remain unart"ected to any appreciable extent for even two or three yeai-s after the onset of the attack. Locomotion is unre- stricted, equilibration is good, the gait steady, firm, and no swaying is induced on closing the eyes. In fact, in 50 per cent, of the cases examined the walk was brisk and not devoid of spring, and no muscular enfeeblement was apparent. Yet although the rule is that a gradually progressive paresis occurs, in a considerable number of cases SPINAL SYMPTOMS IN GENERAL PARALYSIS. 277 ft sudden paralytic seizure may occur, rendering the patient temporarily luilpless in his limbs, or permanently paralysed with exalted reflexes and. contractions established by consecutive spinal degenerative changes. In other cases, again, we find the deep reflexes abolished, and true tabetic symptoms obtrude themselves, of transient duration only ; on their disappearance, hemiplegia or convulsive seizures may occur, and symp- toms of a descending lateral sclerosis come to the fore. The fre- quency with which we meet with spinal symptoms, and the general nature of these moi'bid signs, may be gleaned from an analysis of the forty-four cases before referred to. In six cases only (or 13-G per cent.) were the deep reflexes ascertained to be perfectly normal ; in sixteen cases (or 36 per cent.) they were decidedly exaggerated ; whilst in some eleven cases (or 25 per cent.) the patellar reflexes were both abolished, or both very sluggish ; in three more cases the knee-jerk was abolished on one side, and in a fourth very nearly absent. Thus we see a very notable degree of impairment of the deep reflexes characterises the afi'ection, and the general results may be thus tabulated : — Deep R EFLEXES. s^nee-jerk normal on both sides in 6 cases (13-6 per cent. ) exaggerated absent very sluggish absent on one side nearly absent either exaggerated doubtful or sluggish 16 7 4 3 1 4 3 (36-3 (15-9 ( 9 ( 6-8 ( 2-2 ( 9 ( 6-8 r, ) ) ] j34 15 or per cent Increased Knee-jerk. — The exaggerated knee-jerk, it will be observed, is tlie more frequent phenomenon ; it may be a purely functional disturbance, ti'ansient in dui^ation, induced by nervous discharge from the cerebral cortex, and hence by removal of its inhibitory control. In this connection it is often found as the im- mediate result of a general convulsive seizure, or as actually accom- panying the convulsive twitching of general jmralysis ; on the other hand, it may be a sign of organic disease of the spinal coxxl, and have as its accompaniments the usual motor enfeeblement and muscular contractions of descending sclei'osis. The former association is illus- trated by the table, which shows that out of twenty-two cases where the gait was elastic and brisk, seven present very notable increase of knee-jerk. It is important, therefore, to note that we have as associated phenomena in many cases of general paralysis, a firm elastic walk, loith full muscidar vigour of limbs, exaggerated deep . reflexes, and pronounced irido-motor j'ici.ralysis. 278 GENERAL PARALYSIS. The latter association — i.e., of increased knee-jerk with structural disease of cord, is exemplified in cases /. M., J..B., Ji. S., B. K., and may be instructively associated with the ocular troubles as follows : — Case — J. ISI. — Riglit aiiii and Ijotli legs paralysed and contracted ; knee-jerk notably exaggerated in both ; marked ocular paralysis. „ J. B. — Right aim ])aralysed and rigid ; right leg drags ; knee-jerk notably exaggerated in right ; marked ocular paralysis. ,, R. S. — Right henuplegia with aphasia; right leg stiff; knee-jerk notably exaggerated in right ; marked ocular paralysis. ,, B. K. — Left hemiplegia with contractures; knee-jerk notably exaggerated in right ; horizontal nystagmus ; ocular troubles. Besides the above, sevei-al (three) of the cases of hemiplegia, with early commencing changes in the cord, were found associated with disturbed reflexes and marked intra-ocular pai-alysis. M. J. R., aged thirty-six, a gardener's wife, with a family of three children, was admitted May 24, 1882. It was stated that for the past ten months she had suffered from "fits," 'the last seizure a month since, leaving her in her present demented state. No hereditary predisposition could be ascertained, no history of drink, or syphilis. She understood all that was said to her, but was incorrect in all her replies involving time, dates, and locality ; she did not recognise the nature of her surroundings, and memory was faulty regardmg recent and remote events. Was very emotional, wept constantly, and wished to go home. She betrayed much self-satisfaction, was inclined to joke and laugh at her own statements, adding — "Not such a bad wife after all, am I?" The right pupil was the larger of the two, but both were regular in contour and active in their reactions ; the tongue and lips were tremulous and speech somewhat impaired. The grasp of tlie right hand was much weakened ; she was in good bodily condition. She continued thus at times depressed, at times irritable and interfering, fretful and discontented until August 9, when several seizui-es were noted affecting left side of face and arm, but continuing only a few moments ; the arm was left powerless, and remained so for twelve hours. About nine months after admission it is noted : — Patient can stand with eyes closed, but staggers much on endeavouring to walk along a straight line ; she is more feeble. Knee-jerk exaggerated on right and normal on left side ; ankle- clonos present on right side. Tongue extremely unsteady, protruded in ataxic jerks ; lips tremulous, fails to whistle ; phonation luiimpaired, sings well without any tremor of voice ; deglutition unaffected. The right pupil is much the larger, but both act to light and accommoilation. May 13, 188.3. — Passes restless nights, laughing incessantly in a cliildisli fashion, or bursting into pitialde lamentations under deluded notions respecting her home. Has most exalted notions respecting her personal attractions ; usually speaks of herself in the third person — "Mrs. R. has had a good dinner, tliank you ; Mrs. R. is a beautiful woman ; yes, she is a channing person." June 6. — Suddenly showed loss of power on the left side of body, a condition preceded by excitement ; the paralysis was not ushered in by con^nilsion, nor accompanied by loss of consciousness ; the leg is more paralysed than the arm ; TABETIC SYMPTOMS IN GENERAL PARALYSIS. ^7& reflexes are acute as formerly, but there is no apprecialjle clouos ; she grinds her teeth continuously. The right pupil is still the larger of tlie two. Aug. 20. — Her gait is now much impaired, an unsteady jog-trot— and ankle- clonos is again produced in right foot. There is marked tremor of tongue, lips and facial muscles, and constant grinding of teeth, even during conversation. Voice is tremulous, and raised in pitch. Exhi))its a peculiar state of double consciousness — thus, in crying aloud and disturbing other patients, she immedi- ately rebukes herself by — "Mrs. R., hold your tongue !" Again becoming noisy and complainmg, she interrupts herself with — ' ' Be quiet, Mrs. R. , you are the noisiest child in tlie house ! " Ocular examination gives the following results :— Size of pupils, -^' mm. ; no opacities of lens, no adliesions, &c. Both contract and dilate actively and normally to light; they are extremely mobile iinder emotional excitation. Movements with accommodation, are normal. Dilatation, on cutaneous stunulation, is scarcely appreciable. Visual acuity = Reads Jaeger No. 1 slowly and with effort, No. 2 with fair ease. Snellen '5 at 12 inches distance, and No. 5 at 3 metres. Optic discs normal to ophthalmoscopic examination. Ai^ril 10, 1S84. — Bedridden; both limbs held stiff and rigid by voluntary effort; knee-jerk is now absent in the right, but present in left leg; no ankle-clonos. There is now profound dementia; she is vaeant in aspect, rarely speaks, but often cries aloud in a frightened voice. About ten months later it is noted : — Sinking rajjidly — when approached, or any movement near her occurs, she opens her mouth instinctively like a young bii'd ; never uses her hands, although they show no contractures or clones — the muscles are, however, greatly wasted. Both legs are becoming stiff from assumed flexion — not contracture ; knee-jerks are wholly abolished ; plantar reflex greatly diminished in right and absent in left foot. Cutaneous sensibility almost abolished on both sides, especially the left. Right pupil double the size of the left; both remain almost fixed to a concentrated beam of light ; accommodative movements are very limited in range, and sluggish. She swallows only with the greatest difficulty, retaining the bolus of food long in the mouth. She is terribly emaciated ; looks up when called by name, and opens her mouth loidely ; is extremely timid, shruiking away when touched. Died February 23, 1885. Knee-jerk Abolished or Much Impaired. — We see by the table given above that fifteen cases, or 34 per cent., exhibited an abolition of the knee-jerk or its very notable impaii-ment. Of the ten cases in which the knee-jerk is abolished, on one or both sides, five cases are notable for a brisk, elastic walk, yefc all present serious oculo-motor paralysis; whilst of the remaining five, the gait is noted as being stiff and waddling ; swaying, staggering, and leaning to right side ; stiff, slow, swaying ; and two others stiff. In all these latter the pupils are likewise fixed to their usual reflex stimuli. With one exception only, the deep reflexes when impaired, abolished, or in- tensified, were accompanied in all cases by irido-motor paralysis ; but the latter condition was often found advanced with a perfectly normal 280 GENERAL PARALYSIS, reaction of the knee-jerk. Just, therefore, as we may find the association of an elastic, easy gait, or of a spastic or paretic gait, with exalted deep reflexes and advanced intra-ocular paralysis ; so, on the other hand, we may encounter the association of a normal gait, or of a paretic or tabetic gait, with an abolition of the deep reflexes, and like irido-motor troubles. The tabetic gait, occasionally associated with this absence of the knee-jerk, is peculiarly disorderly, hurried, spas- modic, and insecure ; the legs are jerked forwards, the feet planted wide apart, and the heels brought down with considerable force ; there is often a tendency to propulsion ; the patient sways from side to side or falls when the eyes are closed and feet approximated, or makes tottering efforts to secure his equilibrium. The case of //. U., given here in detail, indicates how such symptoms may entirely disappear and be replaced by those of another system-disease of the spinal cord. H. U,, aged thirty, a married woman without family, was admitteJ in October, 1S8.3, suffering from depression, exhibiting great apathy and reticence, refusing food, and passing sleepless nights. Her family history was obscure. It was ascertained that the patient had suffered much privation of late. On her admission she spoke occasionally, her remarks being rational ; but she soon lapsed into apathy again, assumed a stolid expression, and was reticent. Her memory was found to be very defective. The pupils measured # mm. ; the light-reflex was abolished in both eyes ; consensual movements were absent ; accommodative movements were normal; dilatation upon cutaneous stimulation ■was abolished. She read No. 1 Jaeger slow^ly and at a fair distance; visual acuity = Snellen §. Appreciation of colour normal. She was unsteady and tottering in gait, swayed much, and could not close her eyes without falling ; nor could she walk along a straight line. Lying on her back, she could resist fairly well an effort to extend her limbs. The grasping power in both hands, measured by the dynamometer, did not exceed 4 kilos. During the first month of her residence, she remained much depressed and hea\-y, but was less reticent. She became easily fatigued upon slight exertion. The oculo-motor troubles were well marked, the pupils being rigidly fixed to a con- centrated beam of light showing a tendency to sliriht dilalatlon upon sustained illumination of the fundus. She read Snellen '6 at 50 cm, with ease. The follow- ing electric reactions were noted : — K.M.C. A.M.C. K.B.C. A.B.C. Deltoid, . , . 12 26 Nil at 50 Nil at 50 Pectoralis major, . . .34 22 ,, ,, Supinator longnis, . . IS 26 „ ,, Biceps, .... 14 34 ,, ,, The pectoralis major showed the R.D. on both sides. Urine = sp, gr. 1020; no albumen, sugar, or deposits. Heart normal, free from briut. StiJt. 3, 1S83. — A crop of herpetic vesicles has formed over the supraorbital branches of the fifth ner\-e on the right side. The parts are tumid, the conjunc- tiva mjccted, and there is " shooting pain " over brow and hairy scalp. TABETIC SYMPTOMS — CASE OF II. U. 281 Nov. 14. — Much depressed and agitated; asks for her husband, and bursts into tears; the herpetic eruption has disappeared. She sways much during equilibra- tion ; her gait is unsteady, and tiic lindis are thrown about in the disoi-derly style characteristic of tlie tabetic subject. Ataxy of the upper limits is very notable on endeavouring to thread a needle. Nuv. IS. — A sudden convulsive seizure occurred this evening, followed by transient right hemiplegia and hemianesthesia; the reflexes v;ere normal. She now lies in a state of stupor, associated with great depression ; mouth full of frothy saliva ; she resists feeding, and does not sleep well. A notable degree of corneal opacity has remained since the herpetic attack. Nov. 20. — The day following the stroke she uttered just one word, but has remained mute ever since. Has been fed regularly by the funnel. Sensibility has fully returned to the limbs. Nov. 24. — In a state of wild delirious excitement, dominated by the one idea of terminating her life by her own hands ; made a most desperate attempt to secure a knife, and piteously implored a nurse to give her one. Nov. 26. — Acute excitement continues, with intense restlessness ; endeavours to undress, and fling herself into the fire. Dec. 1. — Has now lapsed into a state bordering on imbecility, associated wdtk much hysteric excitement and general mental exliaustion. Her face at times beams with delight, or she glares vacantly before her, giving utterance to a flow of delirious ideas indicative of a grandiose state of mind. Articulation is tremu- lous, syllabic, explosive, hesitating, and indicative of grave implication of lips and tongue — especially the labial muscles. There is a distortion of facial symmetry at tunes, ahnost amounting to a grimace or a hideous grin; her eyelids quiver greatly. Dec. 18. — Aspect like that of a general paralytic, beaming and ecstatic ; enuncia- tion most difficult, speech explosive ; always applies her fingers to her mouth to steady her lips wliilst sjieaking ; there is much mental vacuity. Her gait is more steady, still tabetic, comes down heavily upon the heel ; knee-jerk exaggerated in Ijoth Ihnbs ; no clonos. Jan. 12, 18S4. — Mental distress much alleviated of late by chloral in conjunction with bromide of sodium. Still has a happy, beamuag but imbecile look, and a childish simpering manner. Labial articulation excessively difficult ; lingual less so ; great tremor of voice, but phonation unimpaired as regards pitch and timbre. Is conscious of failing vision in her right eye. Knee-jerks still exaggerated ; gait- much less notably tabetic. Jan. 19. — An attack of right hemiplegia, involving arm and leg complete!}', and associated with aphasia ; no facial asymmetrj'^ ; complete hemianesthesia ; reflexes as last noted. April 10. — Another attack of right hemiplegia on the lOtli of March has now left her bedridden, speechless, helpless, and apathetic. Her legs are tiexed upon the thighs and the thighs upon the abdomen, but can be fully extended ; right arm shows commencing rigidity, resists flexion strongly, and then elbow-clonos arises ; wrist-clonos readily induced on the same side. Knee-jerk on right side is extremely exalted ; slight ankle-clonos ; deep reflexes of left leg are brisk but less marked ; plantar reflexes acutely exaggerated. There is no marked vaso- motor or trophic change in the skin and little muscular atrophy. May 5. — Now sits up in a low arm-chair ; is fatuous and vacant ; makes sudden darts forwards in a stooping attitude, or attempts progression on lier hands and knees ; can just support herself with a little assistance, but is tottering and 282 GENERAL PARALYSIS. slovenly in gait, lier feet are kept wide apart or rotate helplessly outwards. The right leg is free from contractures ; tlie vastus contracts upon percussion ; the knee- jerk is now normal; the plantar reflex excecilingly dulled; no clonos, back-tap, nor hamstring-jerk. The left leg shows well-marked clasp-knife rigidity, and the knee-jerk is brisk ; sensation in both soles mucli impaired. The skin is cold and livid, especially over left foot. The right arm is contracted strongly at elbovr, semi-flexed and pronated ; exhibits triceps-reflex and elbow-clonos ; wrist con- tracting, lield rigidly, and fingers bent upon palm. The left arm is uncontracted, and sliows nothing abnonnal beyond greatly impaired sensibility as in the opposite member. Cutaneous sensibility remains normal only over the face. Swallows with much difficulty and spluttering. The sphincters of bladder and bowel are paralysed. Sense of smell appears unimpaired ; but hearing is defective. June 30. — Has just recovered from a series of strong convulsive seizures. The right arm is rigid, flexed, and slightly pronated; it can be forcibly extended; there is no clasp-knife phenomenon, but slight triceps-reflex. All the extensors of the arm contract upon percussion. The wi'ist is bent at right angles to the arm ; fingers and thumb flexed tightly on palm. The left arm can be fully extended, l)ut is usually flexed and pronated ; reflexes absent ; no affection of the hand, the fingers move freely, and are kept constantly in her mouth. She fails to use the right arm at all, but resists strongly with the left ; there is little special wasting, both forearms 4 inches below olecranon measure 6f inches around. Epigastric and hypogastric reflexes exalted. The legs are flexed on abdomen, but both can be freely extended ; the left becoming sUglitbj fixed in a sort of clasp-knife extension i?ery temporarily. In l)oth legs the knee-jerk is notably lessened, and only elicited by very forcible percussion. Quadriceps percussion-wave is present ; no ankle-clonos on right, but a very slight tendency to it on the left side ; constant involuntary twitchings of foot and toes prevail ; muscles flabby, but not specially wasted. Plantar reflexes are now excessive, pricking the soles causes convulsive jerhings and withdrawal ; but no complaint, movement, or attempt at withdrawal occurs upon pricking the calf of the legs or thighs. She appears only to appre- ciate irritation of the skin of the face. She constantly grinds her teeth, and for two weeks past has invariably opened her mouth widely upon bringing any object near her, or upon touching her cheek or lips ; sioalloivs ivell and rapidly. She lies perfectly mute, smacking her lips and incessantly rolling her tongue about, and sucking her fingers; bowels greatly constipated. The right pupil is now the larger, and both are dilated. Died November 27, 1SS4. Microscojnc Examination of Spinal Cord — Lumbar Cord. — Anterior columns exhibited a very small wedge-shaped tract of sclerous tissue close to anterior commissure ; elsewhere and along whole of anterior root-zone the structure was healthy, beyond some proliferation of the spider-cells. The lateral columns were healthy, beyond showmg on the right side a few closely -aggregated vessels, with small lumen and thickened walls, near the centre of the column. In the posterior columns, however, the structure was coarsely vascidar, the vessels crowded around by spider-cells, forming coarse tracts along median raphe and posterior commissural zone, spreading from side to side across tliis latter region within and in front of the posterior ground-fibres. The root-zone and peripheral zone of these columns had escaped implication. Anterior and posterior cornua were free from obvious lesion. Domal Cord — Anterior columns appeared iiitact ; the lateral columns exliibited great vascularity of their central part, with abundance of spider-cells, especially on left side. Posteriorly the columns of GoU were normal, but those of Burdach TABETIC, SYMPTOMS — CASE OF II. U. 283 betrayed much coarse vascularity near the commissural zone, with numerous spider-cells distributed parallel to the raph6 and along the ribands of Burdach. Clarke's columns showed perfectly healthy cells, and the anterior and posterior cornua with the emergent roots were normal. The central canal, as elsewhere, was crowded with leucocytes. Cervical Cord. — Here the anterior columns and l)oth cornua were also found intact. In the right lateral column, liowever, a deep-stained sclerosed area lay internal to the direct cerel^ellar tract, extending almost as far forwards as the antero- external angle of the cornu. The nerve-fibres were much obscured by the extraordinary development of the spider-cells, which were profusely scattered throughout the whole of the crossed pyramidal tract, surrounding numerous enlarged blood-vessels. Much finely punctated tissue was seen here, but no amyloid bodies. The left lateral column was normal in all respects, except that a slight increase of its connective indicated a little unusual depth of staining — a generally dilated state of its vessels, and a larger supply than usual of its spider elements. The posterior columns exhibited well-marked changes as in the other regions ; coarsely-distended vessels with deeply-stained spider- cells formed a notable feature in a large patch of sclerous tissue, just at the junction between the columns of GoU and Burdach, and also along the posterior connnissural zone. Such changes were most marked on the left side. Hypoglossal Fegion of Medulla. — Both hypoglossal convolutes were degenerated on either sides ; their nerve-cells were shrunken and diseased, and surrounded by numerous colloid bodies ; the emergent root-fibres were notably varicose. The vagal nuclei exhibited many minute degenerate cells or their disintegrated relics. The ascending root of the fifth nerve was degenerated in its posterior two -thirds, but the olivary and its arcuate series of fibres did not appear implicated. Another notable site of degeneration was the solitary fasciculus (f. rotundus). The floor of the fourth ventricle was covered by little heaps of cell-growth, giving rise to its sand-papery aspect (graniilar ependyma). Bladder. — It is at this period that urinary troubles arise, and cause much anxiety to the guardians of the paralytic patient. When spinal symptoms have fully developed themselves and the lumbar cord is known to be involved, the patient is never secure from possible retention of urine, which, if not relieved by catheterism, may lead to a ruptured bladder ; an accident frequent enough as to be a source of real anxiety, when large numbers of such paralytic cases are massed together in asylums. In the earliest period of the disease, retention, or incontinence, may occur, but, as a rule, as a transient condition only ; and at this time the patient is sufficiently conscious of his state to draw the medical attendant's notice to the point. Retention may occur from spasmodic contraction of the sphincter urethra'., due to irritation of the lumbar cord, a loaded and torpid bowel being a most frequent starting-point for such troubles. It may be due, on the other hand, to the presence of a chronic cystitis and '2S4: GENERAL PARALYSIS. the alkaline urine so en^'ondored, the cystitis having a neuropatliic origin not infrecjuently in changes within the cord and sj)inal nerves. RetGntion far more frequently is an indication of paralysis of the bladder; it is, then, usually accompanied hy a dribbling away of water, which fails to relieve the gradually augmenting accumulation, and a time arrives when the organ becomes dangerously distended, and no expulsive power can be exerted by the patient. Such patients, by being constantly more or less Avet in their bedding and clothing, "would readily deceive an experienced nurse. The condition is identi- cal with that induced upon section of the spinal cord above the level of the anterior and posterior roots of the third, fourth, and fifth sacral nerves — the sensory and motor arcs for the sphincter iLrethro'. Such section withdraws the inhibitory control of the cerebrum, thus increas- ing the reflex activity of the sphincter (Landois*). All such cases should be uniformly treated by a periodic catheterism, allowing no great accumulation to occur. A still more dangerous condition arises in certain cases, fortunately somewhat rare. The bladder becomes attenuated, or undei-goes con- siderable fatty degeneration, as the immediate result of s[)iual disease — a genuine tropho-neurosis. Nor is this very surprising when wc learn from the results of autopsy in general paralysis how extensive are the trophic disturbances which other organ.s, and especially the ■muscular, undergo. In this degeneration the muscular coat of the bladder especially sutlers, and the organ may be ruptured by a slight distending force when aided by such accidents as a fall or a blow, cr even powerful expulsatory efforts, as in severe vomiting. A recent convulsive seizure, or an apoplectiform attack, may leave the patient subject for some time subsequently to paralytic retention; and in our treatment of a case of this nature the state of the bladder should be almost the first snl/ject to engage our attention, f A similar condition of the bladder often prevails in advanced cases of tubes, and, as indicated by Dr. Buzzard, may even form the most prominent symptoms and, like gastric crises, or optic atrophy, if ataxy be absent, be readily regarded apart from the real cause — " I have little doubt that not a few cases of atony of the bladder for which the * Op. ciL, p. G53. t A well-trained medical officer with many paralytic cases under liis care will never fail to direct the nursing staff to keep a record of all such cases, and check the same himself by daily reference, morning and evening, to the wanler's report, and by actual examination of the abdomen. Even under the strictest supervision an accident may still occur at times, as in the cases of degenerated muscular wall of the bladder. It is, liowever, quite inexcusable for any such patient, known to be suflfering from paralytic enuresis, to escape examination night and morning. PAIiALVSES FUOM SPINAL IMPLICATIONS. 285 surgeon is consulted are examples of tabes, with the hladder trouble predominating." * Ai)avt from any well-marked spinal paralysis, retention frequently occurs as the result of simple inattention, the accompaniment of ])rofound dementia, with which there is often associated a diminished reilex-excitability of the bladder, the organic reflexes corresponding to the general impairment of the superficial spinal retlexes. There is not only the diminished excitntion of the spinal centre necessary to initiate the act, but the patient does not feel the need of micturition. It is found necessary in our asylum wards, where some sixty or seventy general paralytics are often congregated, to keep a daily and nightly record of all such inattentive cases, and of all bed-ridden cases alike. Enuresis. — Incontinence of urine invariably occurs in the paralytic stage of this affection, as in all cases where the dementia also is advanced. It forms, together with like bowel troubles, the daily source of trial to the nurse — a burden which may be considerably alleviated by tact and careful observance of simple rules of treatment. AVhilst retention is produced by section of the cord above the level of the reflex centres of the sphincter (above the third sacral nerve) by removal of its inhibitory centre, so section or disease on a level with the reflex centres produces incontinence, as will any incompetence in the reflex sensory or motor arc. It must be remembered that voluntary impulses passing down the motor tract of the cord do not act directly upon the smooth muscular fibre of the bladder, but they act in two directions — (a) onjthejsphincter urethrse or its motor centre in the cord, so intensifying the reflex contraction; (6) on an inhibitory centre in the cord above the reflex apparatus, which antagonises the latter and allows the sphincter to relax, f The necessity for continuous care and change of bed-clothing in these wet cases is emphasised by the otherwise certain occurrence of bed- sores which, in these debilitated subjects, become a formidable compli- cation to the nurses. The irritation of the skin, by its constant soakage in urine, develops, moreover, pajndar eruptions over the back, the groin, and thighs, which are abraded by the patient's hands. Bowels. — Another troublesome and objectionable condition of the later stages of general paralysis, is the paralysis of the anal sphincter, which results in such, frequent incontinence of the bowel; the condition, of course, is at once recognised on introdixcing the finger per rectum, when the patency and want of tone of the sphincter is very obvious. As is the case with the bladder and sphincter urethr£e, the * "Ou little-recognised phases of Tabes Dorsalis " in Diseases of the Nervous Sy.'itcm. Dr. Buzzard, 1SS2, p. 274. tLandois and Stirling, op. c'U., p. 654. 286 GENERAL PARALYSIS. cerebrum can voluntarily contract the external sphincter ani, or can inhibit its contraction; such motor fibres descending through the cerebral peduncles to the lumbar cord. The centre for this inhibitory agency is stated by Masius to be in the optic thalamus. So likewise, energetic voluntary contractions of the levator ani and sphincter arouse the active rectal peristalsis neces- sary to initiate defsecation, by bringing the excrementitious mass down into the rectum. When once there, it creates the uneasy feeling which prompts the voluntary inhibition of the sphincter ani, and allows the mass to be extruded. Thus the act of defoscation is in every way similar to that of micturition, it being really a reflex spinal act during a voluntary inhibition of the sphincter. There is the reflex loop constituted by the sensory nerves of the rectum, and the motor nerve of the sphincter and the plexus myentericus inducing peristalsis ; a tract for voluntary impulse to excite conti'action of the sphincter ; a centre in the cerebrum for the inhibition of the latter. Degenerative changes in the lumbar cord occasionally give rise to the complete paralysis of the anal sphincter ; much more frequently is it a matter of sluggish or incomplete reflex of this muscle than of actual paralysis, as well as a defective tonicity which has been much alleviated by the apjilication of tannin suppositories, a treatment first recommended by Dr. Robert Lawson.* In bed-ridden cases of general paralysis, a not unusual symptom is that of frequent alvine evacuation from simple increased peristalsis, not amounting to a genuine diarrhcea, but a very frequent " formed " stool ; at times, however, the stools become very loose, yet without any pyrexial accompaniments, and due apparently to centric irritation of the vagus. Epileptiform seizures in general paralysis are apt to be accompanied or followed by such, but are then watery alvine fluxes. Thus in the case of R. E. P., severe, continued convulsions, aff"ecting the left side of the body only, were associated with very copious and frequent evacuations. A similar condition has been noted by Dr. Buzzard in certain cases of tabes, and which he regards as possibly dependent upon irritation of the vagal nucleus in the medulla.! In these cases the flux is probably the result of paralysis of the splanchnics, the vaso-motor nerves of the intestines ; and to the resulting transudation of fluid from the blood-vessels into the bowel, with the accompanying increased j)eristalsis. * " Clinical Notes on Conditions incidental to Insanity," by Robert Lawson and W. Bevan Lewis. No. 1, West Riding Asylum Reports, vol. vi. t Opldhalmopleri'ia Externa with Tabes Dursatis (Dr. Buzzard, p. 200). See also case described by the same writer in Diteases of Nervous Si/stem, p. 218. HAEMOGLOBIN IN THE nLOOD IN GENERAL PARALYSIS. 287 The Blood in General Paralysis.— A diminution of hsemoglobin is clearly indicated in all cases of general paralysis examined by us. The corpuscular richness varied considerably — in fact, from 75 to 12G per hcemic uoiit, the higher register pertaining to cases where maniacal excitement prevailed. No connection is established, however, between mania and such corpuscular richness, since a diminution in the number of red corpuscles is quite as often, and, in our experience, more frequently, met with in maniacal conditions. What is of more im- portance to note is the diminished colorimetric power of the corpuscle, the proportion of haemoglobin varying from 52 to 75 per cent. Taking into consideration the corpuscular richness, we find, that the absolute deficiency of haemoglobin gives a corpuscular value varying between 56 and. 89 per cent. The accompanying table gives the results obtained in fifteen cases of general paralysis at diflferent periods of the disease : — Amount or Hemoglobin in the Blood in Geneeal Paralysis. • Heemoglobin. Red Vi Corpuscles. Corj ^hite uscles. Value per Corpuscle. Per cent. Per heemic unit. Per ha emic unit. T. G. (July 24, '87), 70 125 40 •56 „ (Aug. 2, „ ), 72 126 40 •57 W. W. (Aixg. 5, ,, ), 70 124-6 13 •56 „ (Nov. S, ,, ), 70 108-8 16 •65 T. C. (July 24, „ ), 60 103 60 •58 (Aug. 3, „ ), 75 110 50 •68 „ (Sept. 21, „), 63 85 40 •74 W. A. (Dec. 16, ,, ), 58 91-2 20 •63 T. W. (Aug. 4, ,, ), " 52 80 30 •65 ,, (Sept. 29, „ ), 54 75-6 40 •72 J. R. (Nov. 9, „ ), 66 102-4 25 •64 S. S. (Oct. 9, „ ), 68 100-6 24 •68 J. H. (Dec. 16, ,, ), 60 86 32 •69 J. B. S. (Dec. 16, „ ), 70 91 22 •76 E. E. (Aug. 4, „ ), 62 81-8 50 •76 „ (Sept. 29, „), 70 96-2 32 •72 C. W. (Nov. 5, „ ), 64 79 20 •SI J. W. (Dec. 16, „ ), 70 78-4 22 •89 G. H. (July 17, „ ), 68 81-8 20 •S3 T. H. (Oct. 9, „ ), 77-2 25 B. W. (Nov. 8, „ ), 64 10 ... 288 ALConoLic insanity. In the cases of 7?. A'., ./. B. S., J. A., as of several others not noted ill the above list, the blood flowed with great sluggishness, rendering its collection by the usind means extremely ditKcult. In such cases the surface! Avas cold and very pallid, the vessels being undoubtedly in a state of si)asm, and insldutaneous couz/xlation was prone to occur, ere the blood could be withdrawn by the pipette; no inflammatory complication existed in these subjects. Similar cases of exti-emely slow oozing blood exhibited, on the other hand, abnormal delay in coagulation. ALCOHOLIC INSANITY. Contents. — Alcoliolism and Age— Susceptibility at Certain Develoiimental Phases — Adolescent Period (F. S.) — Prevalence of Impulse— Influence of Sex, Heredity, Epilepsy, Cranial Injui-y, Ancestral Intemperance— Anomalies of Systemic and Visceral Sensation— Aural Hallucinations (J. J^)- Delusions of Susjiiciou — Optimistic Delusions— Clinical Forms of Alcoholism — Mania a Potu — Amblyopia Cutaneous Anaisthesias — llelapses— Case of W.^Y.- -Homicidal Impulse (G. S.) — Chronic Alcoholism— Physiological Effects of Alcoliol— Evolutionary Period- Mental, Sensorial, and Jlotorial Symptoms (J. J^.) — Amnesic Forms (J. F.)— Con- ditions of Mental Pievivability (M. H. L.)— Delusional Forms (T. S.)— Instances of "Environmental Resistance" — Visceral Illusions- The Epigastric Voice— Vari- ous Illusory States (E. A. F.) — Evolution of Psychical Phenomena— The Nervous Discharge — Hallucination as Determining Morbid Ideation — Augmented Specific Eesistance— Sensory Anomalies— Motor Enfeeblement (J. P.)- Twitch- ings, Tremors, Stolidity — Eeaction-Time iu Alcoholism — Muscular Spasms and Cramps— Oculo-Motor Immunity — Nystagmus — Epileptiform Attacks — Hemiplegiie (T. P. and J. C) — Classification. Alcohol is a fertile source of nervous disease, and its implication of the nervous centi'es is so general and far-reaching, that the resultant symptoms are of most protean nature ; no poison, except the A'irus of syphilis, plays so extensive a role in the morbid affections and degener- ations of the tissues, nervous or non-nervous. Yet, as regards its effects upon the nervous system, it is possible to trace its march with a fair degree of accuracy, and to classify into definite groups the victims of over-indulgence in accordance with the degree of implica- tion — the depth to which nervous dissolutions have attained. Ere we classify, however, the more or less distinctive forms of such aflfections, it will be well to glance generally at the insanity induced by alcoholic indulgence; and for this pui'pose we have inquired into the history and antecedents of 4G4 patients, whose insanity was attributable to excessive drinking; of which number 344 were males. And, in the first place, who are the subjects most liable to thejjdifferent forms of alcoholic neurosis? Ag'e. — The period of life is here an element which it is important to examine. Were we acquainted with the actual amount of excessive drinking in the community at large, and at different ages, as also with the percentage of those who succumbed to insanity as the direct result ALCOHOL AND TIIIi: ADOLESCENT PERIOD. 289 of drink, and tlu; time roquiri'd for excessive drinking to evolve such results, we might, by a comparison of asylum statistics, ensure some degree of accuracy in estimating the incidence of alcohol as a causative agency of insanity. Such absolute data are at present out of our reach ; and we must, consequently, rest content with the ascertained history of our asylum community without reference to the sane. Nor is this altogether devoid of immediate iitility, since our object is not so much that of ascertaining the exact incidence of alcohol in insanity, as to extract the characteristic features of the neurosis which alcohol induces. Every period of life shows its proclivities towards special diseases ; and the action of toxic agencies demonstrates the peculiar susceptibility of the nervous system to their operation at certain stages of its evolution. Some such law would appear to govern the origin of mental affections induced by alcoholic indulgence, since these are certainly far more prone to occur between the ages of twenty-five and thirty, and, again, from thirty-five to forty-five, than at other periods of life. It is easy to assume that at these periods of life the actual number of excessive drinkers is larger than at other times ; at present no data supporting such assumption are forthcoming, nor do we see any reason why the age of thirty to thirty-five should claim special immunity. It must be remembered that this age, from twenty- five to thirty, is one peculiarly characterised by intellectual advance, as contrasted with the more emotional developments and expansion of the moral nature which takes place during adolescence. It is also the age when the struggle for existence, in its widest sense, makes itself felt upon the organism in fullest force ; it is not the period of longing and yearning for activity, for plans of action and castle-building, but it is peculiarly the age of active being, when the mettle of the man is tried, and his weight as a social unit fairly esti- mated. It is upon his intellectual advance, which at this epoch is so important and so notable, that his success as a social factor largely depends ; for a successful life is the outcome now-a-days of a well- balanced adjustment, and hence depends on a highly appreciative and intelligent recognition of complicated relationships. It is a period when feeble and indifferent organisations often feel a want for an artificial stimulus to goad them on, and many succumb to such perilous inducements ; and it is peculiarly a period when certain inherited neuroses place the individual at a disadvantage in the competition of life. In fact, it is a period when the first great swellings of the intellectual tide make themselves felt throughout the whole organism, and when inherited frailties, coeval in their manifestation in parent and offspring, assert the supremacy of the laws of periodicity in development. All such nascent developments 19 290 ALCOHOLIC INSANITY. are most prone to early decay in dissolutions of the nervous system ; and upon them chiefly appears to be expended the full force of those agencies credited with the proximate causation of insanity. Thus it is that in the moral and emotional developments of the adolescent epoch, sexual and alcoholic excesses tell more directly upon this phase of mental life, and that hysteric forms of insanity and a stunted moral development are so often revealed at such an age. In like manner, this latter epoch of intellectual expansion exhibits the earliest eflects of alcoholic excess as inducing reductions in the intellectual sphere, and only later on, as profoundly affecting the emotional and moral being of the individual. This is why we regard age as an important element in the evolution of these forms of alcoholic insanity. F. S., aged twenty-five, widower, and a warehouseman. When admitted he had been insane for six weeks ; had been very wild, rambling in speech ; called himself the "Holy One," the " Great Physician." Patient's father is of dull intellect and of intemperate habits ; paternal uncle was insane ; patient was addicted to excessive drinking from the age of fourteen to that of twenty-one, remained temperate for two years subsequently, and has again relapsed into his former excesses. Upon admission he exhibited great exaltation, spoke excitedly, and loudly, giving expression to optimistic delusions ; he had exalted notions respecting his muscular powers; was "perfect in body and mind, and surpassed all others in know- ledge and skill;" he has "a perfect knowledge of the human frame, is a great physician, and can cure all diseases. " He declares that he can ' ' easily lift half -a- ton, and has often raised many hundred tons aloft ; all England will become his, ere long; is possessed of enormous wealth." His manner is abrupt, but he is inclined to be friendly and jovial ; expression flushed and excited ; pupils widely dilated, but equal and of normal reaction ; tongiie shows notable and extensive fine fibrillar tremor, no ataxic jerks ; articulation is unimpared ; the reflexes are normal ; cutaneous sensibility is unimpaired. Patient is muscular and well nourished. Examination of other systems proved negative. In a fortnight he was considerably calmer ; the same liien-etre was manifest, but he was so far reasonable as to be employed. This remission lasted but two weeks, and he relapsed into severe maniacal excitement, in which with every varying mood, from abrupt rudeness to jovial humour, he maintamed the same exalted, grandiose notions. His habits now became degraded and filthy at night, and masturbation was practised. Six months after admission, excitement continued unabated, he was insolent, threatening, and demonstrative. Habits of masturhation so reijulsively sliamcless and open that the liquor epispasticus was aj^plied locally, and chloral with bromide of potassium given internally with only temporarily good results. These habits kept xvp persistently seemed to account for the slow progress made in his case, for he remained twelve months in the asylimi ere the excitement abated ; even then for several months he exhibited an imbecile aspect, laughed umnoderately without cause, was restless, untidy, senseless or irrelevant in his observations, and given also to insane gesticulation and grimace. Twenty months elapsed ere he was discliargeil recoveretl. We must, as before hinted, make due allowance for this age as one offering peculiar inducements to heavy drinking; and for the fact that PREVALENCE OF IMPULSIVE STATES. 291 a certain period, even for those specially predisposed, must elapse ere alcoholic excess results in actual mental alienation ; but, when all such factors arc allowed for, wo still think the evolutional phase of this epoch is the chief reason why so large a proportion of mental cases are attributable to alcoholic excess. The facts as given in our statistical Tables ai-e striking, for out of 344 males suffering from one or other of the forms of alcoholic insanity, 29 cases alone occur between the ages of fifteen and twenty-five, whilst as many as 52 occur during the next five years, or 87 up to thirty-five years of age ; each of the two succeeding quinquennial periods of life claiming some 50 victims of these afi'ections. Predisposition. — The subjects of alcoholic insanity admitted into our asylum do not exhibit any unusual degree of the insane heritage, the proportion of hereditary cases not rising above 27 per cent., and, consequently, not attaining to the average heredity of all Jorms of insanity alike. All recurrent cases of insanity taken together exhibit a far higher insane inheritance than this. If we now group together all cases of insanity, epilepsy and other neuroses, occurring in the family history of these insane subjects, as also all cases of ancestral intemperance, we find such predisposing elements present in 37 "2 per cent, of the total number of cases of male patients. Where ancestral intemperance was the sole ascertained predisposing^ cause, it was almost exclusively limited to the father, and in no case was the mother addicted to this vic'e. Taking a history of insanity and excessive drinking collectively, we find such present in the case of thirty-one fathers and sixteen mothers, so that the influence of sexual limitation in transmission is here apparently demonstrated. Nature of the Attack. — Taking first the 344 males — maniacal excitement prevailed in 57*8 per cent., of which over 26 per cent, are delusional forms of insanity, only 6"3 per cent, being acute maniacal states. On the other hand, melancholic dej)ression prevailed in 28 "7 per cent. ; 42 cases were attended with delusional perversion, 28 were simple melancholic forms, while 12 (or 3*4 per cent.) were cases of chronic cerebral atrophy. The maniacal states were, therefore, con- siderably in excess of the melancholic forms of alienation, in fact, they were twice as numerous ; whilst pronounced dementia apper- tained to a small section, forming only 8-4 per cent, of the whole. Taking the aggregate of 344 cases where alcoholic excess preceded the attack of insanity, the fii-st important fact taught us by a glance over our statistics is the essentially imjndsive nature of the afi'ection; it is in all its phases a COnvulsive neurOSis. Whether excitement pi-evails, and the disordered propensities exliibit sudden, explosive impulses; or whether depression, with its frequent accom- 292 ALCOHOLIC INSANITY. pauiment of hallucination, predominates, and painfully pent-up feeling, or suddenly-aroused terror results in determined violence to self or others ; or, lastly, whether they are forms of mental fatuity Avith depression — the all-important feature to be borne in mind is this prevailing convulsion of conduct. The maniacal forms exhibit such impulsiveness, nut so niucli in attempts at self-injury as in a dangerous aggressiveness to others, in destructive fits, in sudden, treacherous, and often brutal violence, a tendency which renders these lunatics a peculiarly dangerous element in our asylum communities; about 68 per cent, were thus returned as dangerously impulsive toward others. The melancholic victim, however, is more likely to turn his hand against himself; one half of such cases at the lowest estimate being dangerously SUicidal. The tendency to suicidal and homicidal impulse is high even in advanced forms of dementia, and it is a noteworthy feature that in those cases of dementia which are dependent upon chronic alcoholic cerebral atrophy, suicidal and homicidal impulse reaches its climax of fre- quency; as many as 66'6 per cent, of such forms being determinedly suicidal, and 83'3 per cent, being dangerously aggressive. The intrinsically impulsive outbursts of alcoholic insanity, whether mania, melancholia, or dementia prevail, should never be forgotten by those dealing with the insane. Taking into account only the male alcoholics, age apparently had no distinct influence over the character of the mental symptoms, one half the cases of mania, as of melancholia, occurring up to forty years of age, and the other half, subsequently. We may anticipate the largest number of maniacal or melancholic patients to be between twenty -five and thirty years of age, and the next largest proportion to be in the quinquennial periods immediately preceding and following the age of fox'ty. A considerable rise in the number of melancholic cases amongst such a class of insane inebriates again occurs at the age of fifty to fifty-five, and a similar rise in maniacal ailments from fifty- iive to sixty years of age. We may, thei-efore, conclude that although certain periods of life are especially prone to the development of alco- holic insanity, such as the ages of twenty-five to thirty, from thirty-five to forty, and again towards forty-five, maniacal and melancholic forms appear in the same relative frequency at these epochs of life. If we attempt to explain why the form of insanity should assume in one case the maniacal and in the other the melancholic type, we are able to afl'ord but little explanation and that purely of a negative character. Thus age is, as just noted, an indifferent element in this connection ; in like manner inheritance cannot be stated to have any very definite influence in either direction ; excitement does, IIALLUCIXATIONS AND DELUSIONS. 293 however, })rccloniinate in liereditary insanity ; Ijut tlie propovtionato number of maniacal to depressed cases appears still greater among those who afford the history of ancestral intemperance. Epilepsy and other neuroses also appear to be wholly indifferent factors. Then again, as regards sex, it is noted that melancholic states are to maniacal proportionately more frequent in male than in female inebriates, being but one-fourth in women and one-half in men. Sex, therefore, does appear to lend some influence in predisposition to the one or the other type of insanity. Lastly, recurrent seizures throw no light upon the subject, depression and excitement occurring with about the same relative frequency in relapsed cases (mania, forty-three, and melancholia, thirty-seven). Cranial injuries occur in a lai'ge jiroportion of the subjects of alcoholic insanity (18"9 per cent.), but this element comes in as frequently in maniacal as in melancholic states. Of the circumstances which modify the type of the psychosis age, recurrence, and cranial injury may be excluded from consideration ; whilst sex, lieredity, and ancestral intemperance have some influence in this direction. Hallucinations of Special Senses.— Illusions and hallucinations are extremely frequent in all the acute forms, as well as in a large pro- portion of the chronic forms of alcoholic insanity; in 344 males as many as 131 (or 38 per cent.) presented such disturbed sensorial phenomena. The visual were the more frequent, and visual or aural were separ- ately more frequent than both combined. But what is peculiarly characteristic of these alcoholic forms of alienation are the illusoxy anci hallucinatory phenomena of the nerves of g'eneral sensation and of the systemic or visceral system of nerves, giving origin to delusions of an extraordinary nature, and often of a very complicated system of intrigue. Tingling, prickling, burning, stinging sensations over different areas of the integument are frequently complained of; anaesthetic patches are discovered over the skin of the arms and face, and a feeling of general numbness in a limb may ensue ; electric-like shocks are described in the limbs, and head, and neck, often associated with muscular twitching, or facial contortions; and these subjective states, induced usually by centric changes, are referred to an objective origin, giving rise to the most varied delusional concepts, such as those of unseen, mysterious agencies operating upon the system — electi-icity, magnetism, mesmerism, Avitchcraft, diabolical machinery are in turn invoked to account for these mysterious sensations. In like manner, unusual visceral sensations referred to the heart, lungs, stomach, bowels, itc, become the basis for similar delusional beliefs of a malign influence within. Belief in demoniacal possession is not uncom- mon, but more frequently is the imagined torture supposed to be 294 ALCOHOLIC INSANITY. produced l)y individuals known to tlie patient, who, he believes, have the power of operating upon him from a distance, or have obtained access to his body, and restrict, enslave, and govern the whole life of his organism, control his thoughts, and have dominion over his mind and its utterances. J. J^., aged thirty-one; admitted March, 1886. Had been a soldier, and for the past five years on service in India; he was invalided by "fever," confined to a military hospital, and then sent home to England. During his voyage home, a "galvanic battery began to ])lay npon him," and he heard the voices of his late officers, Capt. P., Lieut. C, Drs. W. and C, talking of murders and other crimes, although they were not present. He has heard these voices persistently since coming to the asylum ; they are always above him, and he points up to a distant roof of the building where he believes they are located. He often hears the whistling of gas over his head, which, he says, afi'ects him so as " to snip a word in two," just as he utters it, and confounds the meaning of what he says — it also affects his memory; this gas is produced by the same agencies as the voices which he hears. Flashes of lightning show him all the events of his life. " I have seen my whole life, good and bad, in yon back-yard " (referring to an airing- court). The battery sends electric shocks through his body, causes a heavy pressure (not a paiu) at his epigastrium, twitches up his chest, but does not affect arms or hands. His speech is hesitating, and he often, in explanation, uses the statement that, " Thetj rule my speech, and tell me what I have to say at times." Has noticed foul odours, wliich he knew were unnatural, and caused by " the electric machine ; " they jjrevent him from sleeping. These malevolent agents are treacherously pursuing him wherever he goes; he knows not why — he cannot rid himself of them, although he has " oQered them his life." Frequent twitchings of the facial muscles on the left side occur, and he explains them as due to the electric shocks, which draw his breath out of him at these times ; his " head shakes," and his eyes " are made to twitch thereby." He admits having been of very intemperate habits since the age of eighteen, but had never suffered from delirium tremens; both his father and mother were excessive drinkers. He himself drank raw spirits freely. Had never suffered from fit or stroke. Dynamometer registers for right hand 56 kilos.; for the left hand 54 — as the average of four trials. jEathesioivcter gives the following measurements of comparative sensibility: — 1l'\]) of forefinger, ,, thumb. Ball of thumb. Centre of palm, Wrist, dorsal. Wrist, volar. Forearm, dorsal, Forearm, volar. Sensibility elsewhere appears good, active, without delay ; yet he complains that his legs frequently feel " dead," as he sits at table. Both knee-jerks are quite abolished; yet e(iuilibration is midisturbed, he balances well with ej'es closed; stands on tiptoe, and can walk "heel and toe" along a straight line; plantar Right Side. Left Side. "05 of an inch. ■05 of an inch, •05 •10 ■3 •4 •4 •4 •9 rs 1-7 1-4 2-8 1-7 1-9 1-8 DELUSIONS OP SUSPICION, KTC. 295 reflexes are good. Has never had pains in his limbs, but flashing pains continually- pass through his body in "all directions." No eye-symptoms are apparent, the pupils are equal, the reflexes perfect ; has never sufi'ered from diplopia or strabismus. On analysing the varied delusions in male alcoholics, which were well expressed in 208 out of 344 individuals, it was found that 131 entertained ideas of persecution; 29 others, religious delusions affecting their moral welfare ; and the remaining 48, optimistic and grandiose conceptions ; or, as tabulated, thus : — Nature of Delusions in Alcoholic Males. C ises. Percentage of whole (omitting decimals Delusions of Persecution — (a) By poisoning, . 24 12 {b) By magnetic and unseen, mysterious, agencies, 25 12 (c) By various other means beyond the above, . 82 39 Delusions afi'ecting the moral being, ... 29 , 14 Delusions of grandeur and of wealth, ... 48 23 208 Too Fpequency of Delusions of Suspicion.— Thus, about 63 per cent, of such false notions are of the nature of delusions of suspicion, and of the 23 per cent, of a grandiose and optimistic character, it was also observed that such notions were very rarely unmixed with distrust and suspicion — the exalted position — the large possessions or wealth of the individual being cited as in themselves the explanation of the malignity of his imaginary foes. A summary of all the cases of delusions of mysterious or unseen agencies, based on illusory states of general or visceral sensibility, vividly suggests the terrible mental torture which these alcoholic subjects endure. It should be remembered that the prevalence of these latter forms of delusion, based on illusions of the nerves of visceral and general sensation, is much greater than our statistics would lead us to infer, since therein are comprised only definitely expressed states of the kind, while a much larger section exhibit suspicious evidence of these. Optimistic Delusions. — These states of optimism closely resemble those presented by the subject of general paralysis, in the inteiisity of the false belief, and their grossly exaggerated chax-acter, but they differ in almost invariably exhibiting the feeling of distPUSt just alluded to, and their far greater fixity. The subject is restrained in the exercise of his exalted mission, or in the recovery of his just rights ; his functions, delegated by the Almighty or by a great earthly potentate, ai-e checked by the malignity of his former friends and 29G ALCOHOLIC INSANITY. relatives, perhaps by his own wife and children, to all of whose actions sinister motives are attributed. Aural hallucinations prompt him to action — a voice from the heavens declares to him his mission — yet his enemies thwart him, endeavour to poison him, or otherwise ill-treat him, and this leads to frequent impulsive violence. Yet, when contrasted with the other forms of delusion of pei'secution, it is found that hallucinations which are found in one-half of these cases are not so frequent an accompaniment of the exalted mental states, occurring in but one- fourth of the series. The general character of these delusions may be gleaned from a few typical cases — thus one of our patients calls him- self the "Son of God, and the Father of all nations;" another declares he holds the sun and moon in his bauds, and regulates the movements of the planets ; another has been left a fortune of one million pounds sterling by Baron Rothschild; another has just produced a great patent "whereby his fortune is secured. One acute case (recovering in the course of four months) declares that he drives six of the finest horses in the world. Noble ancestry is boasted of by some, or matrimonial alliance claimed with members of royal blood ; and one of our most acute cases always spoke of his wife as Queen Elizabeth, and was possessed of fabulous wealth ; the son of another was so wealthy that he was about to buy up Wakefield. Delusions of pePSeCUtion comprise, as we have before stated, nearly G3 per cent, of the whole series, with the very frequent association of hallucinations of the special and general senses. A. very large proportion of such entertain ideas of poisoning — their food, medicine, or tobacco is drugged ; attempts are made to stupefy them by chloroform, to smother them when asleep in bed, and to burn them alive; ideas of murder in every conceivable way are rife; their house is to be blown up; they are to be "cut in 2)ieces and boiled," or divided limb from limb, and " their bui'ied children disentombed." Policemen dog their footsteps ; soldiers lie concealed in their houses; voices are heard next door intriguing with the wife against their life ; rats and vermin surround the bed ; the wife's fidelity is frequently called in question. These are some of the more prominent instances occurring in our series of male alcoholics, of which details are afforded in the Table. Of the Clinical forms of Alcoholic Insanity.— We shall now proceed to a study of the varied forms of alcoholic insanity, under their respective headings of acute and of chronic alcoholism ; premis- ing, that by the former we indicate a purely toxic form of insanity in which the mental derangement (often very acute as regards intensity) is of rapid course and short duration — a more purely functional derangement, due to the presence of the poison in the system ; and MANIA A POTU. 297 tliufc by the latter we refer to the more remote effects of tlio pr)i.s()n in altering structure, through modifying the nutrititni of thi; censl^ro- spinal system — an insanity based upon organic disease of the brain and spinal cord. The statistics already dealt with when considering alcoholic insanities generally, have presented us with some 50 per cent, of cases running a rapid course towards complete recovery ; but in which there are also some 40 per cent, of others whose recoveries were very partial, or death resulted, or the patient remained an addition to the chronic insane community. It is upon such categories we shall now draw for illustrations of the various phases presented by the mental perversions induced by prolonged alcoholic excess. Acute Alcoholic Insanity. — Under this term we com])rise mania a ■potu, or the acute alcoholic delirium of Magnan, and delirium tremens, or " febrile " delirium tremens of Magnan. Mania a fotu {acute alcoholic deliriu7n ; deliruni ebriosum). — Our patient usually comes befoi-e us in a state of acute maniacal excitement, and with some such history as the following : — He has been for a long period addicted to intemperate habits — perhaps, not so much contin- uous, heavy drinking, as repeated excesses, often with prolonged intervals of comparative sobriety between the bouts. There is jn'o- bably a clue to one or more attacks of delirium tremens, from which on recovery he has shortly relapsed into his former excesses leading to an acutely-delirious outburst. It is by no means unusual to be told that, for several weeks prior to the seizure, there had been entire abstinence from alcoholic indul- gence ; but that the health had been notably affected, with gastric disturbance and general malaise ; nervous symptoms had been pro- minent, and mental instability, moroseness, irritability, insomnia, hideous dreams, and nervous startings had been witnessed ; and that, consequently, on the occurrence of some moral agency, shock, grief, disappointment, &c., an exciting cause is afforded sufficiently potent to develop the attack of mania. Our enquiries probably elicit the fact of hereditary predisposition to insanity — possibly of ancestral intem- perance ; but especially are we likely to discover that the subjects have been regarded as congenitally defective in self-control, as wanting in moral tone, and as the victims of a stunted development, in which instinctive desires and impulsive responses predominate over higher intellectual promptings. The excitement is often one of great intensity ; but, in this respect, we witness various depths of reduction, yet all forms are invai'iably accompanied by characteristic illusions and hallu- cinations ; in fact, the m.ost notable feature of the delirium is the predominance presented by such sensorial disturbance. In typical deliritim tremens motor symptoms are as prominent a feature as the 298 ALCOHOLIC INSANITY. sensorial ; whilst in the more clironic forms uf alcoliolism, as we shall see later on, we get both features less emphasised, less acute, and, together with intellectual enfeeblement, assuming a permanence want- ing to the acute forms. The special sense illusions and hallucinations are ever of a most distressing natui-e, usually very vivid, and exhibit the usual mobile state of such sensorial anomalies seen in acute mania. This fleeting character is in itself of favourable augury when contrasted with the more persistent fixity, or monotonous repetition, seen in other states of mental disease, and indicative of an approaching or of an established chi'onicity. The variable, fleeting nature of the sense-disturbances in alcoholics has been long recognised (Lasegue, Alagnan). The forms thus coujured-up by the disordered sensorium bear a striking resem- blance to the other form of acute alcoholism, delirium tremens, as also to the phenomena described as induced by certain drugs, notably hyoscyamine [Robert Lawson). As under the influence of hyoscyamine, pleasurable or painful visions troop before tlie mind's eye incessantly ; yet the general mood in acute alcoholism is always painful, and the visions, however fascinating in character, beget distrust and suspicion. Much more frequently are these false impressions of a most painful, terrif^dng nature ; and hideous, loathsome forms surround the victim. Snakes, tigers, furious dogs are seen or heard, and the attendant is transformed by tlie diseased mind into a fiend or other dreaded form. If we now test our patients carefully, we discover in many a very decided degree of amhhjopia — vision is clouded, and the visual activity diminished; and, with the amblyopia, there is also occasionally con- joined a difficult perception of colours [dyschromxitopsia). It has been shown by M. Galezowski that the cliromatic aniesthesia thus produced pertains chiefly to the composite colours, and especially yellowish- and bluish-greens. Impaired or perverted sensibility may also be recog- nised in other sensory expansions, as the olfactory and gustatory ; the palate is in all cases more or less art"ected, and tlie antesthetic con- dition of tlie upper lip is an early symptom familiar to all who indulge too freely in alcoholic drinks. Similar anaesthesias, byperaesthesias, and perverted states of general cutaneous sensibility have likewise been apjjealed to as explanatory of the many forms of illusion pertain- ing to the surface of the body from which alcoholics sufter. That these sensorial expansions do become aff"ected seriously in acute alcoholism is undoubted ; but such symptoms are of transient duration, and are far more frequent in chronic alcoholics ; they but indicate the taking oft' " of the fine edge," which all mental faculties alike suflfer. from as the result of alcoholic reductions. Relapses. — Alcoholic excess, long ere structural change can be SENSOHIAL TIIOUBLES IN ALCOHOLISM. 299 predicted in tlie nervous centres, is answerable for something more than the mere transient functional disturbance described ; it engenders a nutritive perversion, which is more marked after each attack of acute alcoholism, and which is expressed in a notable tendency to recurrence. This i-elapsing character is especially seen during the progress of the alcoholic subject under treatment ; repeated outbursts of excitement occur, after intervals of comparative calm and often apparent convalescence, ere the case may be considered fit for dis- charge from asylum-supervision. Thus, in the case of /. J., four distinct relapses occur during one year of his residence at the asylum, and although the remissions were not so complete as in many cases, yet it was sufficiently apparent in his case that each relapse was characterised by symptoms exactly reproducing his previous state ; and that the immediate exciting cause was some trifling moral agency, such as a dispute with a patient, or some trivial disappoint- ment. It is all-important for tts to recognise the fact, that the presence of alcohol in the blood or tissues is not necessary to the continuance of the characteristic delusions of persecution, to which these individuals are subject ; it is in the nutritive change engendered in the nerve-cells of the cortex through the agency of alcohol, that a more permanent instability of the discharging centres becomes established, and the mental anomalies assume gradually a more stereo- typed aspect. Whatever be the centres of the brain which ai-e more prone to disturbance through the agency of alcohol — when once their nutritive equilibrium is upset seriously by this agency — these centres are prone to stiffer first in any relapse, whatever be the exciting cause. The case of W. W. will illustrate this point : — W. W., aged forty, coal-miner; admitted Feburary, 1885. Mother had been an inmate of this asylum, and was said to have died in Pontefract Hospital from softening of the brain. The patient was a heavy drinker until ten months previous to his entry into this asylum ; an attack of mental disorder, the nature of which is unknown, but which was treated at home, served, however, to check his habits of intemperance. From that time he worked steadily, at such scanty employment as he could procure, till within a week of his admission here, when he was seized suddenly with .symptoms of excitement and ravings on religious topics ; this speedy onset was attributed, by his friends, to his attendance at the Salvation Army meetings and consequent excitement. On his reception into the asylum, he was .suffering acute mental depression, and was too agonised to offer any information regarding his subjective state ; but, according to the certificate, he had avowed the delusions that " tliere were devils inside him, and that a man h.ad come outside his house to attack him," and he had taken up a poker in order to kill him. In a few days, having quieted down, he affirmed that he heard people coming down on the top of his head, and although he could not remember what they said, comprehended 300 ALCOHOLIC INSANITY. it at the time; was fearful of sleeping at night. IJajiid convalescence supervened, delusions and hallucinations disap[ieared, and the patient was discharged six weeks after entry. Here then, we find, after nine months' abstinence, the recurrence of acute melancholia apparently attrilmtable to the morbid excite- ment of certain religious services. In every feature the attack reproduced what was previously engendered as the direct result of heavy alcoholic indulgence ; and it is well to be familiar with the fact, that the symptoms of acute alcoholism may thus be over and over again reproduced, without fresh excesses, when the cerebral nutrition has been impaired as above described. It is noticeable how, in the case just described, the characteristic hallucinations and delusions were also freely interspersed with religious delusions, and how his ramblings brought prominently into relief the subject with which he had been chiefly occupied at the onset of his attack. As Magnan and othei's have noted in other cases, here also the hallucina- tions gradually lose their definiteness, a confused voice replacing tiie alarming cry of " poison !"; then the voices are in their turn replaced by an occasional humming sound in the ears, which ultimately fades away upon his recovery. It is impossible not to be impressed, when attentively studying such gradual recoveries, with the apparent obnubilation of the illusory states by the strenr/theninr/ itn^ii-essions of ohjeciive existences, forcibly reminding one of what occurs occasionally, even in perfectly healthy states, when awaking from sleep ; illusory states are then not infrequent ere more vivid preseutative feelings force themselves into being. In a case of mania a potu* (IF. R.) special interest attached itself to the visual illusions to which the patient was subject, especially at the moment of waking. It was, as it were, a projection of a dream into his waking hours, frag- ments of the illusory dream persisting and refusing for some little time to be dispersed ujoon the reinstatement of wakeful consciousness. This state is not unfamiliar in normal health ; and a case is known to the writer, where for some time after aj)parently complete wakefulness, the subject saw distinctly what he conceived to be his own corpse lying in a collin beside his bed, and which for some time he failed to resolve into its real elements of a bundle of clothing. We reason- ably conclude that such resolution is affected by the freer circulation in higher cortical realms ; and that zones ])reviously ansemic become, on complete wakefulness, once more the site of functional activity. There is a strong presumption that a parallel condition exists in acute alcoholism, and that a projection of hideous dreau)s and frag- * See on this point, J/«j7«a)i— Transl. by Dr. Greenfield, p. 50. IMI'ULSIVK VIOLENCK. 301 montary detaclied illusory states arc thus interininglod with tlio realities of waking hours; the wliolc history of the case during its acvite stage is that of a waking dream. The re-energising of higher cortical planes which occurs during waking may require a certain well-defined interval, and in lieu of dispersing any exis- tent morbid symptoms will, in certain conditions, call them into full activity as in the movements of paralysis agitans. Thus in a case of Charcot's hemii)legic type of j^cirabjsis agitans, the writer well I'ecalls the statement of the patient that the hand which was the site of continuous fumbling movements during complete consciousness, and especially during voluntary action, remained often quiescent for some time after waking — a very appreciable interval existing before the afi'ected centres were sufficiently energised to permit of their inter- mittent discharge. In the case of W. 1>. it is also to be noted that both he and his grandmother, " could foresee events," by which we may infer that both were subject to these peculiar waking dreams, and were apt at such moments to confuse illusory appearance with actual existence, and visions arose before them in their waking hours. It is by no means unusual amongst the insane to discover a power of calling into existence such illusory appearances ; and we are frequently told by them that they have the power of conjuring up almost any form they choose ; nor is this to be wondered at, if the analogy of dreaming be considered ; for we opine that the morbid imagery is always ready (in certain cases) to spring into life, but are suppressed by the attentive direction of the mind to presentative states ; if, on the other hand, such contrasting states are voluntarily suppressed, the morbid imagination may have fidl play. At all times liable to dangerous impulsiveness, the acute alcoholic is a fortiori more prone to exhibit such impulses at night ; and especially, when roused from slumber, at the moment of loaldng, from the occurrence then of vivid, illusory, and hallucinatory states. A colleague of the writer's thus narrowly escaped with his life a violent attack on the part of a patient, who had concealed beneath his bedding an improvised weapon, with which to attack the medical officer at the night-visit to his bedside ; and who confessed subsequently that each night he had imagined his visitant to be under the form of Satan, and planned this means of attack upon him. Such impulsiveness very frequently betrays itself in suicidal attempts ; and we find by our statistics as many as 40 per cent, regarded as decidedly suicidal. According to Bouclereau and Magnan, from 7 to 15 per cent, of alcoholic cases attempt suicide. The latter writer is especially guarded in distinguishing genuine suicidal and homicidal attempts from mere accidents, which are, of course, peculiarly 302 ALCOHOLIC INSANITY. prone to occur in the terror infused by the delusional states of acute alcoholics. Such suicidal impulses may be associated with desperate conduct, not truly homicidal nor suicidal but having as its object the relief of the existing tortui-e. G. S., aged forty-seven, married, a woollen spinner by occupation. For two months prior to admission lie had been depressed, sleepless, and had taken but little food. A fortnight before he would not leave his house, was silent, sullen, and obstinate, betraying much terror because he was "to be taken away and deserved hanging. " Wife stated that for years he had been an excessively sottish drinker, but less intemperate for the past six months. Brother was insane. Patient was a fairly nourished, muscular individual, well built, with a hea\'y, stupid expression, sluggish in all his movements, his whole bearing indicative of great apathy. He was very illiterate ; was reticent, wilful, and refuseil food upon admission. There was no oculo-motor paralysis ; tongue was protruded straight and steadily — it was covered with foul epithelia ; heart's action feeble, no murmur. Abdominal viscera apparently free from all but slight functional derangement. During his first week's residence, when sleeping under observation, he suddenly sprang out of bed, threw himself upon a patient next to him without any pro- vocation, and nearly strangled hini ; he was removed to a single-room where he was discovered mutilating himself, having succeeded in inflicting a deep mcision with his finger nails around the penis. Up to this period, he had been taking morphia ; hyoscyamine (J gi-. Merck's Extract) was now ordered. A month after admission it is noted — " Much quieter, but still has a hang- dog look, as if m\ich afraid of something or someVjody ;" and, a few days later, he became greatly excited and suspicious, attacking his night- attendants and fellow- patients. Chloral (grs. xxx) ordered ni;;^ht and morning. Musciilar enfeeblement, especially of the loioer limhs, was now noted ; in his wild excitement he frequently fell and bruised himself badly, so that he had to be confined to his bed in a padded room. Six weeks after admission, the excite- ment had passed away ; patient was left extremely depressed in spirits and pro- foundly demented ; was very restless, and utterly negligent in hal)its. He had at this time the aspect of an advanced general paralytic, but with no labial, lingual, or ocular paralysis. Some paralysis of the muscles of deglutition subsequently supervened, necessitating very cautious feeding. He remained help- less, bedridden, and extremely demented, dying somewhat siuldenly six months after admission. Secfio cadav. Skull cap bulging in left parietal region, bones generally thick, very dense and almost devoid of diploii ; sinuses contained dark clotted blood ; there was no adhesion of dura" mater. The brain exteraally very pale, was of average consistence, and the membranes were slightly clouded in frontal and parietal regions, where the convolutions were equally and slightly wasted in both hemi- spheres ; no external tract of softening. The pia stripped with great freedom from all parts, and the soft membranes were generally thickened and buoyed up as in senile atrophy. There was no atheroma of the basal vessels. Whole brain weighed . 1432 grms. Left frontal lobe weighed 2.35 grms. Eight hemisphere ,, . 630 ,, Cerebellum ,, 150 ,, Left „ ,, . 624 „ Pons „ 17 „ Right frontal lobe ,, . 2S6 ,, Medulla ,, 6 ,, CHRONIC ALCOHOLISM. 303 The gvey matter of cortex was normal to the naked eye ; the white suVjstance was somewhat softened, but presented no coarse vessels ; there was no recent or old focus of softening or hivmorrhage. Heart weighed 272 grms., the organ was normal. Right lung, 994 grms. ; adherent at apex by old fibrous tissue, by which also the lobes were united firmly together ; generally congested and presenting at extreme base a small cheesy nodule. Left lung, 574 grms. ; apparently normal throughout. Liver, 1,708 grms.; capsule much thickened ; substance congested. Spleen, 108 grms.; normal. Eight kidney, 141 grms.; left kidney, 165 grms. Both organs were considerably lobulated ; capsules firmly adherent, leaving on removal a distinctly granular surface ; cortex was much wasted, structure firm, fibrous, granular ; pyramids obviously diseased ; right organ in most advanced state of degeneration. The case of J. B. (p. 216), is a typical one of mania a potu passing- into chronic alcoholism in a subject predisposed to insanity, and inherit- ing the resvilts of paternal intemperance. Prior to his visit to America, his seizures were of the nature of acute alcoholism ; bvit, upon his return to England, the fixed delusion of the machinery in his chest augured the transition towards chronic alcoholism. In the latter stage we observe the tendency to allude to his sufferings as terrible, and to speak in the most exaggerated, terms of the tortures to which he is subject. This is a feature highly characteristic of chronic alcoholism ; such exaggerated statements are not wilful misrepresentations, for the subject fully conceives the terrors he depicts. The suffering is evidently not extreme physical suffering, but a distortion of disordered sensations, so that slight pains and discomfort, from a loss of balance in comparison, are apt to be magnified into voluminous distressing feelings. Such subjects usually have hearty appetites, gain flesh, and enjoy themselves freely, when their attention is distracted from their subjective states ; but, immediately they are spoken to concern- ing their delusions, the hypochondriacal self-engrossment is assumed, and they begin to lament their pitiable condition. Cases of alcoholic delirium have been divided by Magnan into three groups, viz. : — 1. Those affected with alcoholic delirium, with easy, complete, and rapid convalescence. 2. Those affected with alcoholic delirium, of slow convalescence, with ready relapse. 3. Those specially predisposed, who have frequent relapses, and a convalescence interrupted by delirious ideas, and in which the intellectual disturbance is from the outset much more notable than the motorial. Chronic Alcoholism. — The establishment of persistent nervous 304 ALCOHOLIC INSANITY. symptoms as the result of too fi-et; an indulgence in intoxicating liquors, has been for centiu-ies recognised by the ))rofession. Even in classic times, we find occasional allusion to such states (Soieca). Nor, indeed, could we conceive this to be otherwise, if we take into account the excessive vicious indulgence of the luxurious class in the later Roman Empire. Nearer our times, Lettsom has clearly demonstrated the sensory and motor troubles induced by long-continued alcoholic indulg- ence ; but, it was not until quite recent days (1852), that a group of symptoms was formulated as constituting a distinct morbid entity under the name of chronic alcoholism, and to Dr. Magnus Huss, in parti- cular, is due the credit of clearly enunciating the relationship of this important disease, which in his day was making such sad havoc among his countrymen. Northern nations have always been most susceptible to the alluring temptation of alcohol ; the Russian, >Scandinavian, and Scotch, being notoriously addicted to the vice. In Sweden, the consumption of large potations of raw spirit by all classes of the population (and especially of a most impure and pernicious spirit, distilled from diseased potatoes, which formed the staple commercial article), proceeded to such an extent as to demand State interference, in which the reigning family and the medical profession took a prominent part, doing much to point out the pernicious social effect of the habit, and check its further advance. The raw brandy thus consumed in Sweden was not only notoriously impure and noxious, but correspondingly cheap, and the most deleteiious effects were widely apparent. It is, therefore, not surprising that the most valuable treatise upon chronic alcoholism should have emanated from our Scandinavian neighbours, and that in the classic work of Magnus Huss* we find detailed in no uncertain terms the ominous group of symptoms constituting a disease, whose differential diagnosis before his day had been, to say the least, most obscure and ill-defined. Van-der-Kolk + dealt with alcoholism as he met with it in Holland ; and later (187G), Magnan I has done for France, in his elaborate treatise on alcoholism, what Huss did for Sweden ; and in our own country, Drs. Carpenter, § Marcet, || Anstie, U Wilks, ** and Parker, * AlcohoUsmiis Chronicus. Dr. M. Huss, Stockholm, 1S49 51. t Jvflnence of Stroiuj Drinks on the Human Budij, by J. L. C. Schnieder Van-der-Kolk. Utrecht, 1S53. X Alcoholi'^m. Dr. V. Magnan. Translated by Dr. Greenfield, 1S70. § Use and Abuse of Alcoholic Liquors in Health and Disease. W. B. Carpenter, 1S50. II Chronic Alcoholic Intoxication. Dr. Marcet, 1S62. ^ Stimulants and Xarcotics. Dr. Anstie. Macinillan, 1864. ** Alcoholic Paralysis, Dr. Wilks. Lancet, 1S72. CHRONIC ALCOHOLISM. 305 have, amongst many otliers, contributed largely to the physiological, clinical, and pathological aspects of alcoholic intoxication, and its ulterior effects upon the nervous economy. Nor must we omit to mention the highly suggestive experiments of Dr. Ogston and of Dr. Percy, * which gave so great a stimulus to further research into the physiological action of alcohol, and from which have directly emanated the more enlightened views now held respecting the physiological operation of this agent, its true dietetic and therapeutic value, and its operation as an incitor to morbid change. It is unnecessary here to do more than very briefly allude to the injurious efiects of alcohol on systems other than the nervous. Dr. Carpenter's "Prize Essay" did much to popularise true ideas on the subject, portraying in vivid colours, as it did, the injurious effects of drunkenness upon all the tissues of the organism. The chronic gastric catarrh ; the hsemorrhagic mucous membrane ; the inter- stitial changes in the liver and kidney ; f the atheromatous condition of the blood-vessels ; the fatty changes in various organs, and notably in the heart ; the functional disturbances leading to albuminuria, ascites, anasarca, gout, rheumatism, and the long list of nervous ailments ; all these are familiar to any one who has paid attention to the subject. It is well, however, to recall to mind certain estab- lished physiological facts as our groundwork for further observation. (1.) Alcohol may be absorbed through the serous, mucous, or respir- atory surfaces ; the last fact was demonstrated by Orfila, who produced drunkenness by the inhalation of the vapour. (2.) It is absorbed unchanged ; and may leave the system in an unchanged form, since it has been detected by appropriate tests in all the fluids and in many of the tissues. Thus Dr. Percy, relying on its odour and inflammability, found it in the bile, urine, blood, the liver, and the brain ; whilst Rudolf Masing, 1854, | and subsequently, MM. Lallemand, Perier, and Duroy detected it by the chrome test S in exhalations from the skin and in the urine. (3.) As early demonstrated by Dr. Percy's experiment, it is found in proportionately largest quantity in the brain ; evidencing, according to that authority and Dr. Carpenter, a peculiar " elective affinity " of nervous tissue for alcohol. (4.) Changes of a profound significance are induced in the blood * An Experimental Enquiry concerning the presence of Alcohol in the Ventricles of the Brain. 1839. t The frequency of its action on the kidney has been denied by Dr. Dickinson and Dr. Anstie. Medical Times and Gazette. November, 1872. X Da rdle de V Alcohol et des Anesthetiques dans I'Orr/miisme. Paris, 1860. § Bichromate of potash, 1 grain ; sulphuric acid, 10 grains. 20 306 ALCOHOLIC INSANITY. itself at an early period, laying the foundation for the various tissue- changes which ensue, and which directly aff'ect the well-being of the nervous centres by the immediate functional disturbances which are induced by the agency of the nutritive pabulum of the blood. Such changes are the devitalisation of the red corpuscles leading to impaired reration ; to the accumulation of hydro-carbon in the blood-current, fatty specks in the red globules, whilst it causes these globules to be very slowly reddened on exposure to air. (5.) Paralysis of the sympathetic system, leading also to impaired nutrition and an extravagant expenditure of animal heat. The effect of alcohol in stunting the growth of the body is a well- known fact ; animals may thus be affected when fed from an early age upon alcohol. At the West Riding Asylum a dog, to which alcohol had been administered for a lengthened period, not only succumbed to all the symptoms described in alcoholism in animals by Magnan (hallucination, terror, savage temper, motor tremblings, and paralysis); but the nutrition of the skeleton also became affected, so that a notable degree of mollities and attendant deformity ensued. Upon death, extensive fatty degeneration of the nerve-cells and arteries of the cerebrum was observed. The dwarfed stature of our mining com- munity (amongst whom excessive indulgence in drink is only too frequent) is largely due to this cause, associated with the abnormal conditions of their life and strong hereditary proclivities. Period of Evolution of Nervous Symptoms.— Important as it is that we should, for the sake of statistical accuracy, arrive at definite views as to the period during which alcoholic indulgence may be prolonged (ere permanent nervous symptoms are indicated), it is apparent, at first-sight, that the question is one of extreme difficulty ; and, with our existing data, cannot be answered with even an approach to accuracy. Much dvspends upon the hind of drink indulged in, the specific effects of raw spirit, wines, malt liquors, absinthe, and other drinks being too well recognised to be dealt with here ; much dei)ends also upon the quantity taken ; the eliminating powers of the system ; sex ; certain diatheses (as the aguish) where the individual can take large quantities often, are all important points. As regards neurotic inheritance, it is certain that, from this class of the community, drink reaps its greatest quota of the more persisting kinds of alcoholic delirium and chronic alcoholism. (See on this point, Magnan).* Those specially predisposed to the rapid incidence of delirium upon drinking are readily recognised. We are all acquainted * " Patients specially predisposed, who, when suffering from alcoholic delirium, have frequent relapses, and a convalescence often interrupted by delirious ideas, assxuning more or less the form of partial delusion." Loc. ciL, p. 63. EVOLUTIONARY PERIOD OF ALCOHOLISM. 307 with friends in whom a single glass or two of wine will produce striking degrees of nervous instability ; just as we recognise (jthers in whom hal)itude, idiosyncracy, or other cause permits a continuous and heavy intlulgence in alcoholic drinks with but little obvious effect. It is astonisliing what large quantities may thus be taken for prolonged periods with impunity; although, eventually, the nervous centres must undergo irrecoverable injury. A picture of the so-called 'moderate dram-di-inker from the working-classes of Sweden, is thus given by Dr. Huss : — " He rises at Kve or six in the morning, according to the season of the year, and swallows, before going out, a cup of coffee with a glass (2 to 3 ozs.) of brandy in it. He returns at eight to breakfast, which meal is washed down with another glass of his favourite spirits. At dinner he repeats the dose of brandy, and often adds another half glass. About five or six p.m., when his work is finished, another glass is swallowed ; and supper at eight is concluded by a similar libation. During the day, therefore, he consumes from five to six glasses of brandy, or from ten to fifteen ounces of spirit. Such a mode of life is far from being regarded as intemperate." Dr. Huss has known some who drank every day sixteen to twenty glasses of raw brandy. In the case of J. C, the patient assured me- he had frequently taken for days together twelve to fourteen glasses, of raw whisky ; nor did he regard this as by any means excessive. As regards sex, it has been affirmed that chronic alcoholism was- unknown amongst women. Dr. Marcet in his intei'esting tables,*' unfortunately, does not help us, as he excludes women from his category, because of the well-known difficulty of eliciting truthful statements in such cases. This, however, is certainly not a coi'rect statement. Females undoubtedly enjoy a remarkable immunity from the disease, as they likewise do from general pai'alysis ; and our experience would lead us to infer that Dr. Huss gives a fair statement of the case in his statistics, wherein he finds but sixteen women amongst a total of 139 cases of alcoholismus chronicus. The case of J/. T. is a well-marked instance of this affection in women. Lastly, as regards affe. The statistics of Magnus Huss fix the Ji/th decade as comprising the larger number of cases, and the fourth decade,, as presenting a smpJler proportion, his figures are as follows : — 20 to 30 years of age, ...... 14 cases. 30 to 40 ,, „ ,, 44 „ 40to50 ,, ,, ,, 'u „ 50 to 60 ,,,,,, 23 ,, 00 to 03 ,, ,, ,, 1 ,, 139 ,, " An inquiry into the influence of the abuse of alcohol as a piedisposing cause of disease." By W. Mircet. Brit, d: Fo;\ Aledlco-Chir. Ikv., 1SG2, Xos. 57-5S. 308 ALCOHOLIC INSANITY. In estimating the value of tliis taltlc it must 1)6 borne in niiiiy tlieir voices (but tiiere are many others I don't know) can see and hear all that transpires in the district (and to mj' own knowledge) within a radius of thirty miles, from Wortley ; they can also tell (after having applied the electro-magnet to his head) what any person is thinking, and he is compelled and cannot avoid hearing all they say. It is impossible that mesmerism or electro-biology may be combined. The mind of the individual operated upon is affected through a material living agent, it may be througli a material fluid — call it electric, call it odic, call it what you will, which has the power of traversing space, and passiuc; obstacles, so that tlie material effect is communiaited one to another. No man or woman's life is safe that they have any ill-feeling or hatred towards, so long as those infernal inventions are allowed to be practised by them. I have been operated upon for upwards of three and a-half years, by the inventor's infernal machines, by him, his, and my first wife's relatives, and others who have a deadly hatred towards me, and are intent on schemes to shorten my life, their object is to make me commit suicide, then they think they will have their own Avay in the disposal of all I have, say about £1,500, which I liave made by railway shares, and saved out of my wages (salary) in about forty-one years. I have no doubt, whatever, in saying that these infernal inventions have been practised on me from the day I was married to my present wife, as I well remember at times, I was affected by peculiar voices, and whisperings close to my head, which were the causes of my being so very nerveless. — 1 am, dear sir, yours truly, T. S. P. S. — For the last three and a-half years they have sent a continual current of electro-magnetism (or be it what it may) through my head day and night, I am prepared to prove the truth of what I have written, also can refer to parties who will verify the same. If you w'ill come over and see me, I will give you all the information I can on the subject ; also, who some of the parties are, and give you an idea where the machines, &c., are fixed. I have been twice driven from my home, from fear of being barbarously murdered. They sometimes send an electric shock through my head and say— "Take that to be going on wnth . . . (here follow abusive and obscene epithets). Don't imagine I am insane because I ■write this from a lunatic asylum. — T. S. This letter was further crossed by the following postscript : — They now say they thouglit tliey could make me commit suicide in about three days ; they never thought it would take them three and a-half years, or they wouldn't have made the attempt. Had some of the parties written a similar letter to those I have written to Mr. B., also to the Magistrates of Leeds (six or eight foolscap-pages) and I had been a party conspiring to deprive an innocent man of his life, money, property, &c., and had stolen a wooden case out of any of their houses, and put a aliilitios of mesmerism, electro-ljiology, witchcraft, odyle, electricity, and magnetism being the means employed. We well remember his excited expres- sion one day when, handing us a newspaper, he indicated a passage bearing upon the telephone and phonograph, of which he liad for the first time heard, and which lie convincingly and triumphantly regarded as the solution to the whole mystery of his case. The possibilities of science are now invoked to account for mysterious feelings, which long ago would have been explained by the patient as due to diabolical agency or to witchcraft. Demonomania is by no means so common as it once appears to have been ; man's powers over natural agencies has supplanted Satanic agency from the possession it held over the minds of men in explanation of the weird symptomatology of certain forms of insanity. — [(Janes of E. A. F. ; G. L.) We have already alluded to the resistance offered by the environ- ment to the activities of the organism in its life of relation ; to the sense of proportionately increased resistance to motor energy, due to the feeble initiatory discharge ; in a certain sense this applies to all the mental faculties alike. We find amongst the delusional forms of chronic alcoholism this sense of obstruction presented to every form of intellectual operation. In one, ideation is impeded — " Thought is fettered and enslaved by the unseen agency ; " in another, the faculty of memory is impaired and recollection becomes painfully irksome, and this is likewise attributed to a similar power ; in another, the expres- sive faculty of speech is restricted, and the patient declares that he is often compelled to say otherwise than he would ; he will often add, " Now I am speaking my own thoughts ; but, by-and-by, I shall be made to speak the thoughts of others." One patient {J. J^.) graphically describes his troubles thus : — " As I speak, the force within me will clip a word in two, and so wholly alter the meaning of what I wished to say." In the case of T. S., it will be noticed that he felt swayed by the unseen influence so far as to feel impelled to self-accusation of crimes of which he knew he was innocent. And just as J. J^. believed that he was impelled to speak the thoughts of others, so he was compelled to think as they wished him, however atrocious, however sickening, obscene, or blasphemous the line of thought. In T. S., again, the revolting language to which he was doomed to listen — the horrible obscenity of speech, which he hesitated to record in writing — was a notable feature, and was equally prominent in the case of J. M^G. All these are instances of the enthralment of the individual faculties of the mind, leading to the sense of an invasion by an antagonistic 316 ALCOHOLIC INSANITY. environmental ajj;ency ; the noxious character of which is inversely proportioned to the growing sense of helplessness and incapacity of the organism. The patient, J. S., died of an intercurrent affection, and, as a sad sequel to his history, his only son was admitted, at the age of forty, suffering from delusional insanity, as the result of alcoholic excess. He had had repeated seizures of delirium tremens ; had squandered a large sum of money away by his dissipated habits ; and was, on admission, the subject of phthisis, to Avhich he succumbed in five months time. His history was one of persistent hallucinations and gloomy delusions, in which he often thought himself accused of atrocious crimes. He was determinedly suicidal, refused food for a long time, and struggled desperately against its compulsory admin- istration. He was surly, suspicious of all alike, could be induced to talk but little upon the subject of his delusions, and never volunteered any reference to them unless repeatedly prompted. These cases of delusional hisanity due to chronic alcoholism fall into several natural groups corresponding with the nervous centres primarily, or more prominently, implicated. Thus, there are those in whom sensorial anomalies preponderate, and in tliese the centres of special sensation, and chiefly the auditory, may be implicated ; or the centres for the organic sensations emanating from the various viscera ; or the centres for the generative organs and the sexual instincts ; all leading up to delusional perversions. There are those in whom the intellectual operations are specially, and often primarily, affected when the delusions (although often associated with aural hallucinations or hallucinatory states of other special or general sensations) are not necessarily evolved out of these. Their special character consisting in a primary change in the centres of other intellectual operations, and the resistance offered to the diminished mental energy, is registered as the immediate antagonism of a malevolent power, which has gained access to the organism. Besides these two categories there is the class already alluded to of the primary amnesic form, in which the faculty of recollection is the one mure prominently or exclusively affected. In the primarily sensorial forms we find aural hallucinations preponderate ; and although other senses (more often those of taste, smell, and general sensation) may be likewise disturbed, in most cases the auditory disturbance is the only anomaly complained of. The phenomena observed may embrace every possible combination of articulate or inarticulate sounds. ]f voices be heard, they may be distant and scarcely audible, or near and loud, or in close propinquity may whisper in the sufferer's ears ; they may be above, below, on the right or the left, and may be referred to casual passers-by, to animals, or to birds. Thus, one patient heard the sparrows talking to VISCERAL ILLUSIONS. 317 him as tlioy flitted to and fro ; another was addressed by the crows as they flew past him ; but, the voice was the voice of human beings wliom he recognised as his enemies. Certain French writers have alluded to bilateral hallucinations in which the patient hears with one ear threatening, denouncing, or revolting language ; and with the other encouraging, kindly, and conciliatory words ; this condition we have never met with in alcoholics. In all such cases, the malign influence makes itself felt in discouraging or alarming terms. A form of visceral hallucination is, however, often present, which is of great interest as indicative of the manner in which new but morbid groupings arise within the sensorium. It is that of the epig'astriC voice, in which a sensation felt at the epigastrium is • often spoken of as a " voice," which the patient describes as not an auditory perception but still "a voice" which makes itself understood, and by which he feels himself impelled to act — this was the case vrith J. W. It would appear that a centric disturbance projected to the epigastric region is associated in some way with a disturbance impressive of the auditory centres of speech ; and that the associated sensory change is referred in both cases to the same site. In fact, it may be often observed that any morbid sensation, cutaneous or visceral, will, in like manner, determine the direction from which an aural hallucination appears to emanate ; both phenomena being referred centrally to the same category of maleficent agencies. An important class is comprised of those whose characteristic delusions and illusions are those of the sexual feeling's and instincts. A large number of alcoholics exhibit some degree of perversion of the sexual feelings^ referred by them to an antagonistic agency ; but we more especially allude to those who exhibit this perversion as the ruling spirit of their insanity. Out of such cases, the most astounding delusions are begot. A typical case who has been for years an inmate of the West Riding Asylum, refers all his morbid sensations to the generative system, which he believes to be operated upon by various agencies — electricity, poisons, caustic, red- hot iron, and elaborate mechanical contrivances worked by magnetism, which have been invented by his unseen enemies with the object of rendering him miserable and ultimately insane. Impressed with the notion that these agencies afiect, not only himself, but thousands of others who are confined in asylums, he writes manuscript by the yard, revealing his feelings to the Government, and describing the various ingenious and diabolical means used for such purposes. He sketches large figures in coloured crayons, representing the human form in both sexes, delineating their anatomical structure according to his own notions, in which the generative apparatus occupy a most conspicuous 318 ALCOHOLIC INSANITY. position, and in which are mapped out the course of the " electric Huid," and the structures which are supposed by him to be concealed within the body for such purposes of torture. During his relapses of excitement he recorded (on a roll of paper measuring a dozen yards in length, both sides closely written upon) his feelings and maledictory comments dedicated to his persecutors. The eflusion throughout was couched in the most obscene and revolt- ing language obtrusively exposed ; in his calmer moments, no one could be more decorous and punctilious in his behaviour and conversa- tion. The case of J. M^G. is allied to this ; in him, also, the sexual organs were the subject of delusional perversions. Sexual hallucina- tions at night were frequently complained of; and his female persecutor was believed to act prejudicially upon his system from a distance through the medium of a " mirror." He, moreover, heard lewd, lascivious utterances from old associates, who imputed to him various unnatural crimes. E. A. F., aged fifty, married, printer by occupation; a tall, powerfully- built , muscular man, somewhat prematurely aged, with a suspicious, furtive look, a dusky, sallow complexion; pupils active, the right somewhat the larger of the two; no facial or lingual tremor; no impairment of articulation. The heart's sounds were exceedingly weak, but there was no murmur, no intermission, and the pulse, which was very feeble, was regular. No insanity was traceable among his antecedents, no history of neurosis or ancestral intemperance. Patient had long been addicted to excessive drinking. Upon examination he betrayed much nervous agitation, stared at the ceiling and walls, declaring the room was surrounded by instruments, whereby people in Leeds and Bradfoi'd could hear all that he said; certain perforations in the wainscotting he asserted were telephones ; the bed he lies upon is electrified, and he even now feels the current passing through him. At his own home a telephone wire ran beneath the floor of his room, and upon placing the legs of his chair parallel with this wire, he could himself feel the electric current; people in adjacent houses constantly spoke audibly through the walls of his house; they were in intrigue with his wife, whose fidelity he distrusted. He found that she used secret signs — e.g., folding her shawl in a certain manner meant that he slept, &c. ; and so she communicated with his enemies. Memory was unimpaired ; his attention good ; and his replies were prompt ; he freely admits alcoholic excess. Sept. 25. — Nine days after admission — still very suspicious; firmly believes his wife conceals herself in the building, and goes about looking for her. Thirty grains of chloral given nightly to relieve insomnia. Oct. 3. — Is convinced his tobacco is poisoned ; hears voices of unseen persons. The sounds issue through the ventilating outlets near the ceiling. "Cannot you hear them now ? " Manner very suspicious ; requests a private interview, and, when conversing, frequently expresses the fear that he is overheard. Oct. 10. — Aural hallucinations constant during his waking hours; asserts that he hears his wife upstairs calling out, "Fool, fool, fool!" is quite convinced it is she, and if his iuterlocutor would but spend half-an-hour with him, he would CASE OF CHRONIC ALCOHOLISM. 319 also be convinced; heard his niece this morning, and his daugliter's voice last night. He made a most violent attack iipon an attendant later on. Nov. II.— "They galvanise all the chairs, and the current goes through me strongly." /)ec. 7. — Eemarked to an attendant, who opened his door this morning, " Now or never! " and followed him closely, it is not certain with what intentious. Jan. 19. — "Hears attendants in the rooms overhead making a huzzing noise and talking;" hut does not hear what they say. fg})^ 1. — No change of late; quiet, well-conducted, and sleeps well; fancied he heard a sound last night like a female voice talking to him through the ventilators of his room; and feels something like an electric current running through his right side to-day— he often feels it; fully convinced that wires convey . electricity all through the wards; the voices are not sounds in reality, but " thoughts conveyed by electricity. " May 4. — Discharged " relieved," at the urgent request of his friends. He remained fairly well-conducted and temperate for twelve months, then relapsed into his drinking-habits, which induced an exacerbation of his mental symptoms, leading to a second admission eighteen months later. The hallucina- tions had become far more distressing ; and whilst walking in the open streets, he heard voices of people miles away talking to him ; suspicions against wife and children returned with redoubled force; he accuses the former of the grossest immorality ; had been dangerously violent to her, and had once nearly strangled her. The night preceding his admission here, he had driven wife and children out of doors, threatening that, if they did not leave, he would murder them all. His subsequent history was but a repetition of what had preceded this attack, and he left the asylum relieved in the course of seven months. Then we have the class of cases where disturbances of cutaneous sensibility lead to delusional concepts of a mysterious principle, known or unknown, acting upon the body. Thus, in the case of G. L., the room was surrounded by invisible tubes, from which issued currents of air producing electricity, and affecting his body and limbs — con- torting and twisting them into various attitudes, and causing him much agony ; often leaving him weak and prostrate upon waking in the morning. The unseen fluid enters his ears, and aff"ects his brain ; but his malignant enemies always keep " prudently at a distance." A very special form of delusion, already alluded to and illustrated, becomes elaborated in such cases as that of J. B. Here the resistance met with by the organism appears chiefly to aftect the intellectual operations, and in a very direct manner. The faculty of thought and speech become impaired, and, as the victim believes, by the direct operation of a power which has gained access to his bi-ain ; which rules his thoughts and dictates his very utterances. In such cases, where (as in thiit of/. B.) no sensory hallucinations have been experienced, we may safely infer that the centres of the intellectual operations are primarily diseased. Thus we find attention, ideation, memory, volition in varying degrees afi"ected in this class of cases, and delusional 320 ALCOHOLIC INSANITY. concepts evolved out of tlie resistance which is engendered by such failure. Evolutions of Psychical Phenomena.— A case of chronic alco- holism of the purely sensorial form is obviously not one of alcoholic insanity ; and it becomes an interesting and ijuportant point to trace the progress of the affection from the sensory areas pure and simple to the planes of intellectual operations — to recognise the gradual overstepping of the boundary line where intellect itself becomes involved and the case relegated to the category of the insane. AVith this object, let us study the nature and effects of the sensorial distur- bances. The hallucinatory phenomena are, as we know, presumed to be due to certain abnormal discharges from the sensory areas of the cortex. Nature of the Discharge. — If the nervous discharge be carefully considered we shall find it one of high tension; sudden explosive onset; rapid escape; irregular or fitful occurrence. The centres are in a state of extremely unstable equilibrium — a state of sensory hypersesthesia prevails. When such unstable centres discharge themselves, one or more of several results may occur. In the first place, as indicated by Dr. Hughlings-Jackson, the discharging centre exhausts itself — is, for the time being (in the case of the sensory area), less imj^ressionahle — and has assumed a state of molecular stability. In the second place, the centres subordinate to the paralysed centres rise into uncontrolled activity. In the third place, the discharge takes a certain course and produces certain results. (a.) Thus, it may react along a motor tract and issue in active movement ; (h.) It may dift'use itself in sensorial realms, producing emotional perturbation ; (c.) It may involve nervous mechanisms subservient to the intel- lectual sphere of mind, and active ideation may be aroused thereby. Whichever course it takes, whether one or the other or many, it is to be observed that the point for us to consider is the forcing of other and distant nervous tracts which are hereby rendered more permeable to such discharges in future. Hallucinations a determining" Factor of Morbid Ideation. — Let us revert to our original conception of the phases of object- and subject-consciousness. The sensory fibres are the channels for those pulsatile tremors which arouse the sensory cortex into activity coinci- dent with the presentative states of consciousness. In other words, these vibratile thrills, transmitted up to the centres of general and special sensation, constitute the raw material of object-consciousness. HALLUCINATIONS A FACTOR OF MORBID IDEATION. 321 In alcoholism we say there is a general augmentation in nerve-resist- ance, both in sensory and motor channels. In the sensory nerves it is indicated by the tingling, prickling, and formication whicli follow the hyperjesthetic stage of the cutaneous surface — all of which phenomena are probably due to the broken-up current — the nervous impulse interrupted by augmented resistance — whereby successive shocks are no longer fused into a single impulse. Hence, excitations from the periphery do not reach these centres in the normal state; and a decline in object-consciousness occurs, with a corresponding rise in suhject-consciousness. The centres them- selves are in a state of hypersesthesia, of extreme instability, and their intermittent, spasmodic discharges must take some determinate course. The discharge from the centres of special senses (which is the physical side of a hallucination) may diffuse itself along lines of least resistance in the sensory realms, discharging the numerous extremely minute nerve-granules (the reservoirs of feeling) found in these regions ; and issuing in emotional states which require but slight impact for their arousal. On the other hand, if the energy of the sensory discharge be sufficiently great it will break through lines of great resistance and flood the channels of those centres which have for their psychical correlate the ideational faculties ; or, overcoming the resistance of motor nerves, issue in determinate movements. In alcoholism the specific resistance of the afferent and efferent fibres is augmented ; the former resulting in a decline in ohject-consciotisness ; whilst the centric discharges opposed by the latter originate the depressing, emotional states associated with feelings of environmental antagonism, which is so notable a feature in this affection. Nor is the resistance ahead other than a favourable condition; for, by this means emotional states form a safety-valve for unstable discharging centres — often by motor lines, and so relieve the plane of more purely intellectual operations from the fatal results of the inrush of morbid discharges. It is only when the barrier of resistance partially gives way that the development of delusional conceptions becomes possible. Continued discharges from these sensory areas eventually break through this barrier of resistance, but only in certain determinate lines, which become, so to speak, channelled out, and more and more pervious by the repetition of discharges along the same tract. Thus it is, that in the psychical side we find that certain hallucinations eventually beget certain determinate lines of thought corresponding thereto ; that imagination becomes tinctured by the distressing hallu- cination and gloomy emotional background ; and that, thus, the spheres of the intellectual operations become pervaded by such agencies, and strong contrasting feelings and ideas arise, overbalancing 21 322 ALCOHOLIC INSANITY, the former intellectual being ; hence, the genesis of delusional states. The forcing of such tracts, or the more pervious channelling caused by energetic or oft-repeated discharge, may often be witnessed in health — note the continual recurrence, despite our inclination, of a song we have lately heard, or been impressed with ; and the incontrollable tendency at times to hum or whistle over a tune which we in vain attempt to dismiss from the mind. Again, the tormenting recurrence of a line of thought, after prolonged and fatiguing mental work, which so often deprives a student of his night's rest. This persistence of sensory and ideational excitation is due to a too-pervious channel established, and loss of higher controlling centres; and it can only arise after discharge from the uppermost series, leaving these latter exhausted. So in these morbid states certain tracts become permeated, to the exclusion of others, by the powerful but intermittent discharge from sensorial realms, and unstable molecular arrangements are built up in the substrata of the ideational centres. Sensory troubles. — An early symptom in chronic alcoholism, is disordered common cutaneous sensibility, and tactile sensibility ; ex- altation of both usually preceding the various modifications, their diminution or abolition. Tingling, prickling sensations are often felt, and formication is especially frequent ; the patient feels as though insects were crawling beneath the skin — over the thigh and gluteal regions, and gradually extending to the trunk and arms — until the feeling is at times quite intolerable : it indicates that a change is progressing in the sensory trunk and centres. Patches of hyper- aesthesia are often noted, as in the wrist of the patient {J. J^.), where tactile sensibility is greatly exalted ; the site is also equally one of hyperalgsesia. The variety of hyperalgsesia, when contact causes a sensation as of burning, or of a sharp cutting edge, is also a frequent phenomenon, and in one patient the peculiar modification called by Fischer 2^olycesthesia, in which one point is recognised as two or three points, was observed. Shooting pains are prevalent in advanced cases, the pain being not infrequently associated with muscular shocks, the patient often regards them as due to electric discharges. The excessive exaltation of the sense of pain, associated with spasms and cramps, leads to ideas of the limbs being torn, wrenched oflf and mutilated. Later, we find numbness and blunting of general sensibility, passing into areas of complete anaesthesia (often with an extreme degree of vaso-motor paresis) which, beginning at the tips of the fingers and toes, creeps up the dorsal aspect of the limbs. Motor Symptoms. — The group of symptoms described under the head of sensorial anomalies, though highly characteristic of chronic SENSORIAL AND MOTORIAL DISTURBANCES. 323 alcoholism, is by no means necessarily distinctive of this affection, since such symptoms may arise (individually or collectively) in other nervous diseases : the same remark applies also to the mental anomalies exhibited by alcoholics. Ordinary forms of delusional insanity often show the selfsame symptomatology, the dementia of later stages of alcoholism being scarcely distinguishable from other non-alcoholic states of mental decadence. Even the amnesic type referred to, may be recognised as sequent occasionally to other convulsive neuroses. It is in the motor anomalies that we find the most definite indica- tion of an alcoholic etiology, for they especially present a distinctive group rarely, if ever, exhibited by other neuroses than the alcoholic. Perhaps too much emphasis has been laid upon the sensory and mental disturbances of chronic alcoholism to the exclusion of the motorial in the diagnostic indications usually appealed to ; for, cer- tainly, the motor group are the "tell-tale" symptoms which most clearly indicate the agencies which have been at work. It is not, how- ever, by the grouping of such symptoms (whether sensorial, mental, or motorial) that we shall be chiefly aided in eliciting an alcoholic factor; we must chiefly rely upon the historical aspect of our case — the mode of evolution of such symptoms, and the tendency of the disease towards fresh nervous implications. Here, especially, do we recognise the scientific process pursued by Magnan in his classical work, when indi- cating the tendencies of alcoholism to pass into dementia, or general paralysis. The tendency alluded to more particularly at this phase, and upon which we do not think suflcicient emphasis has been placed, is this : the morbid process due to alcoholism evolved in sensory areas ever tends to he translated into the motor realms of the brain, establishing necessarily a co-existent disturbance in what we may speak of as the motor realms of the mind. However acute, however persistent may be the sensorial disturbance, we shall always recognise a tendency towards this tPanslation in physico-mental terms — the delusional distortions being often nothing more than mere symbols of motOP enfeeblement which may not be so obtrusive a symptom to the observer. J. R., aged thirty -four, single, a blacksmith; admitted November, 1883. He had previously been an inmate from August, 1882, to March, 1883, and was then discharged as relieved. Five years ago he suffered from a blow on the head by a stone in a quarry falling upon him. Upon leaving the asylum he went to work in a colliery, but was soon thrown out of employment by a pit accident, when he returned to irregular habits of life, drinking very heavily, and speedily developed mental symptoms. He became violent, and talked much of the sim, moon, and stars. His sister stated that patient's father was a notorious drimkard, that three of patient's brothers were excessive drinkers, and that two others, as well as a sister, had died of phthisis. The mother and her parentage, however, were 324 ALCOHOLIC insanity. healthy and temperate. Patient heg J J. M., . Hypochondriacal J. H., . ,, J. E., . Simple G. H., . ,, G. P., . Chronic J. W., . Hypochondriacal T. E., . Chronic R. W., Simple S. W., . . Climacteric W. T., . Acute mania, . W. W., )> >> W. H., Simple subacute mania. M. R., . j> >) W. M'C, Acute mania, . Acoustic Stimulus. Sec. Optic Stimulus Sec. •13 •20 •14 •24 •18 •21 •18 •18 •18 •18 •21 •28 •21 •20 •21 •27 •13 •27 •19 •24 •22 •27 •23 •23 •26 •27 •29 •30 •29 •29 •17 •24 •17 •24 •18 •23 •19 •25 •22 •22 Increase of the specific resistance in the motor nerve- trunks may possibly explain the tremor, but that it is largely due to defective innervation of nerve-centres discharging along those tracts is highly 328 ALCOHOLIC INSANITY. probable, both elements taking part in the morbid state ; for, even if the former (that is, the specific resistance) he not directly augmented, it is relativeli/ so increased by a fall in the energy of the centre. A continuous contraction is thereby rendered impossible from want of a sufficiently rajiid discharge from the nerve-centre; such nerve-shocks are not given off sufficiently quick ; and the resulting contractions do not fuse into one tonic contraction, as in a healthy physiological state. That a pathological change occurs in the motor nerve-trunks is also indicated by the occurrence of muscular twitchings, indicative of an irritative process of the nerve-fibres affecting the motor end-plates, and terminating later on in a more or less pronounced paresis of certain muscular groups, which are then overbalanced by their antagonistic series, producing the asymmetric muscular modelling of the face already alluded to. Muscular spasms and cramps are another frequent accompaniment of chronic alcoholism of the nerve-centres. They chiefly occur at night, and especially when waking from sleep. Their severity is great; the muscles of the upper and lower extremities chiefly suffer, and the resultant pain and contraction is often attributed by the subjects to the influence of their unseen foes. They speak of their wrists being wrenched round, their arms twisted and deformed, and their legs subjected to frightful torture, and they complain of aching pains and feelings of fatigue in the limbs for prolonged periods. Such cramps occur late into the history of the alcoholic, and are often at night associated with frightful dreams, when phantasms are often woven into the delusional web constituting his mental life. The oculo-motor apparatus is by no means so frequently involved as in the allied affection — general paralysis. The pupils are often dilated and sluggish in reaction, they are seldom unequal in size, and the most advanced cases show often no impairment in the reflex adjustments apart from indications of a localised sclerosis. Nystagmus (as the result of cerebro-spinal sclerosis) is of somewhat frequent occurrence in chronic alcoholics. Thus, in J. IF., continuous movement of the eyeballs occurred in a horizontal plane. Epileptiform Attacks. — A highly characteristic group of symptoms inaugurates a later stage of alcoholism. The patient is suddenly seized with faintness, tremblings in the limbs, extreme pallor, and breathlessness ; vomiting may supervene ; and then slight twitching may or may not extend to a convulsive starting of a whole limb (or one side of the body), or become generally spread over all the limbs, but rarely with complete loss of consciousness. Upon recovery a monopleg"ia or hemipleg'ia may be found to exist, and aphasic conditions are by no means infrequent. At times symptoms ominous CONVULSIVE ATTACKS CASE OP T. P. 329 of such attacks present themselves, but do not issue in convulsion or paralysis ; a slight dizziness or actual vertigo, accompanied by syn- copal attacks, or a mere tendency to faint, may be noted ; or there may be pallor of face, associated with a cold perspiration, while the patient sinks exhausted into a chair, but may rapidly recover, com- plaining only of numbness or tingling in arm or leg. The sudden onset of unilateral twitching in the face, followed by slight paralysis of that side, is of frequent occurrence in such cases ; and slight " strokes " of one side of the face, or of a limb (that is, slight in degree of impli- cation), and of very transient duration, is a prevailing symptom which recurs over and over again in this aifection. T. P., aged sixty-two, widower, a shoemaker by trade, a man of moderate height, well-nourished, but bald at vertex with scanty grey hairs around the head ; the right pupil somewhat the larger of the two, both active in their re- action ; the tongue protruded straight, is tremulous, superficial arteries hard, corded, tortuous, incompressible. There is no history of inherited insanity. For many years he has been a drunken, worthless character, but has not before suffered from insanity; for twelve years past his drinking habits had become most excessive, and it was apparent to all that his memory was implicated, his mental powers were becoming enfeebled, and his behaviour childish. Three months prior to his admission at the asylum, he was taken to the Union Work- house, where he developed more active symptoms, was restless at night, developed vague fears, could not sleep, "because some one might kill him." Aural hallu- cinations became now apparent, and a voice distinctly ordered him to take his own life. Then it became evident that he was the subject of convulsive seizures; he denied ever having had a paralytic stroke. He was attentive in his habits, not destructive, and not violent. The morning succeeding his admission he was restless, emotional, bursting into tears whenever mterrogated ; there was profound dementia. He was quite oblivious to his recent history, and did not know whether he had been days, months, or years at the asylum ; in fact, all his notions respecting time were faulty. His memory failed to retain even for a few moments what he was told. His articulation was thick, blurred, and at times so indistinct as to be wholly unLutelligible. In general appearance he was decidedly sottish. Shortly after admission, he had one slight epileptoid seizure ; and, with this exception, he had no further convulsive seizures for some months, when a succes- sion of eight fits occurred one morning, leaving him exceedingly torpid and sub- conscious. From this state he rallied sufficiently to go about again ; but was weak and tottering in his gait, and frequently staggered backwards. His dementia was more pronounced — he was very quarrelsome. One morning, shortly after this, he was seized with severe convulsions, occurring almost without intermission in the right limbs, side of face and body, and slightly in the left leg. Thirty grains of chloral, given per rectum twice in half-an-hour, caused arrest of the convulsions. Next morning he was aphasic, but no paralysis persisted in the limbs recently affected. During the succeeding three or four months, he had frequent recurrence of such convulsive seizures, with precisely the same motor distribution as in the former attack, and chloral in all cases rapidlj' arrested the convulsions. 330 ALCOHOLIC INSANITY. Two years after admission, it is noted — " Fits occur at rather short intervals ; patient is much more demented and feeble, reels and falls backwards if standing whilst in conversation, and at other times when simple forward movements are interfered with ; his movements are stiff aud awkward ; usual attitude, with the arms crossed firmly on front of chest, his head bowed forwards. He is gloomy, irascible, and rarely smiles ; curses, and attempts to strike when irritated. Habits usually clean. Acne rosacea very marked over nose and cheek." Eight months later — " Articulation is now an unintelligible, low-pitched mumble, except when angry ; he then uses curses which are plain. Pupils equal, of normal size ; no tremor of tongue ; he drivels much ; is very tottering and feeble ; gradually emaciating." A few months later, he sank in a condition of stupor, following convulsive seizures of the same nature as those already described. (Sectio Cadav.) Skull-cap symmetrical, bones thicker than normal aud very pale ; slight adhesions of the dura mater. In frouto-parietal lobes of brain there is con- siderable wasting, most marked in the left hemisphere, and peculiarly so in the ascending parietal convolution and the boundaines of the Sylvian fissure ; both hemispheres, however, have suffered much from this atrophic process. The great vessels at the base are all extremely atheromatous. The brain is pale as a whole, and its consistence somewhat reduced ; the membranes are thickened, cedematous, and readily strip ; the section of the brain shows much pallor of the cortex, which is notably diminished in depth in the regions already referred to as wasted ; the white substance is firmer than usual, but evidently diminished in bulk, and encroached upon by greatly dilated lateral ventricles, which contain 9 ounces of fluid. A very small patch of brown induration was found, implicating the pos- terior portion of the right corpus striatum. The ganglia elsewhere and the cerebellum presented nothing abnormal. Whole brain weighs 1,234 grammes. Right hemisphere. . 516 grms. Left hemisphere, . 515 grms. Right frontal lobe. . 235 „ Left frontal lobe. . 204 „ Cerebellum, • 127 „ Pons and medulla. . 23 „ Heart and lungs present nothing unusual beyond hypostatic engorgement of the latter. Liver weighs 1,366 grms. ; is adherent to diaphragm by tough adhesions of its capsule ; its substance is dark-pigmented, and very firm ; in the right lobe near its upper surface is a large cyst with a distinct, white, tough capsule, and containing clear fluid. Spleen, 85 grms. ; also firmly adherent to stomach ; its substance congested, soft and dark. Right kidney, 163 grms.; capsule thin, strips from a smooth, pale surface, revealing numerous shallow scars ; both cortical and medullary portions are much reduced — the pelvis dilated and full of fat ; the organ generally is pale and unduly fibrous. Left kidney, 130 grms. Structure reduced to a narrow strip \ inch in diameter by a huge hydro-uephrosis — the pelvis being enormously dilated. It must be obvious from the foregoing considerations that any division of chronic alcoholism into separate clinical groups must be a purely arbitrary measure, justified only on the grounds of convenience in clinical teaching, and in the study of the wide-spread meanderings of the diseased process; that, with greater or less psychical disturbance, either sensorial or motorial anomalies may preponderate ; and that the CONVULSIVE ATTACKS — CASE OF J. C. 331 most notable fact is the tendency to a serious degenerative process, first (but not necessarily so) implicating sensory areas, and then trans- ferred to motor realms of the brain, implicating in its course the moral and intellectual faculties. Huss divided his cases of chronic alcoholism into six forms : — 1. The Prodromal. 4. Hyperaasthetic. 2. Paralytic or Paretic. 5. The Convulsive. 3. Anaesthetic. 6. Epileptic. Magnan, whilst justly criticising this division as not a genuine clinical grouping, specially calls attention to one form — the hemian- sesthetic type — which, from clinical and pathological considerations, he deems worthy of this dignity. J. C, aged sixty, a widower, employed at his trade as currier up to a week preceding his admission, although his mental enfeeblement must have been of some duration, judging from his state at that time. It would appear that a woman, with whom he cohabited after his wife's death, had concealed his mental ailment from notice, with the object of profiting by his earnings. A maniacal outburst, however, rendered him dangerously violent, and she had to seek assistance from the Union authorities, who found him incoherent and wildly excited. He was said to have lived a temperate life ; to have had no convulsion, stroke, or cranial injury ; and to have exhibited failure of memory only quite recently. All these statements, however, were received with reserve, owing to the relationship exist- ing and alluded to above. The maniacal attack may possibly have been the sequel to a convulsive seizure unperceived; be this as it may, the Relieving Officer found him noisy, incessantly talking in an incoherent strain, violent to all around, and kicking his furniture downstairs, declaring he was moving his home. He had slept but little for nearly a week. He was a short, thick-set individual^ 5 feet 3 inches high, and weighing over 10 stones; of florid complexion, with dilated malar capillaries; bald at vertex, with grey tonsure. His locomotor system appeared unafi^ected, and his grasping power was good; his speech betrayed no defect. His body generally was obese, but there was no distinct evidence of cardiac degeneration upon auscultation, nor were the superficial vessels notably hard or corded. His mental state was that of maniacal excitement ; he was garrulous, silly in his utterances, and always irrelevant. His memory for remote events was good, but for recent events it was wholly at fault ; he was utterly inappreciative of the nature of his surround- ings and present condition; attention could only be commanded wibh extreme difficulty, owing to his rambling off into disconnected utterances. His mood, although variable, was usually cheerful and lively ; no delusion was expressed, and no hallucinations were apparent. For a week following his admission, he was given four-drachm doses of succus conii three times daily ; the physiological effect of the drug was freely induced, but his excitement did not succumb to its influence; and as he was weak and somewhat exhausted, the drug was discontinued. The excitement persisted for two months, during which he lost weight and looked very ill ; but, upon its abate- ment about this time, he again began to gain in weight, betraying, however, a very 332 ALCOHOLIC INSANITY. notable degree of dementia. No further maniacal outburst occurred, and he was relegated to the class of indolent, harmless, and helpless jiatients. A large haematoma auris now developed — it was believed as the result of a fall on the floor. Eighteen months after admission, lie appears to have had a paralytic seizure affect- ing both limbs on the left side, in which common sensation was somewhat blunted and the siiperticial reflexes were impaired. He remained torpid and heavy for a few days, and was then allowed to get up ; he was very feeble in limb, and the left leg dragged slightly during progression. The ensuing two months were marked by rapid advance of physical and mental prostration, due to progressive atrophy of the brain ; his mental faculties were now almost wholly abolished ; nor could he stand up, although he was able to move his hands and arms freely, and with some degree of force ; if placed in the erect position, unless supported, he would double up at once. The tongue is protruded to the left, and is tremulous. At tliis period he was subject to threatening attacks of passive congestion of the lungs, due to failing cardiac energy. Two years after admission, he was completely bedridden, quite helpless, and incapable of changing his position; a bedsore formed over each great trochanter; his lungs were congested at their bases, but his pulse was fair, and his appetite good, much fluid nourishment being taken ; he was utterly fatuous in aspect, and mindless. Cardiac energy, however, upon which so much depends in the survival of these chronic invalids, at last became rapidly exhausted; the lungs became greatly engorged, and he died comatose two years and four months after admission to the asylum. The pod-mortem examination revealed a thickened, gelatinous, and opaque aspect of the soft membranes over the anterior half of both hemispheres. They were removed witli the greatest ease, presenting no morbid adhesion at any site, and were buoyed up by a considerable amount of serous fluid efi"used between them and the brain-surface. Very considerable atrophy w^as noted in the frontal, anterior part of parietal, and temporo sphenoidal lobes, their convolutions being notably wasted and their sulci gaping. The large vessels at the base were atheromatous — and the nutrient vessels of the basal ganglia were notably coarse. The grey cortex was much diminished in depth; the white substance appeared normal; no focus of softening, no undue reduction in consistence, and no clot, recent or old, were noted. The cerebellum, pons, and medulla appeared healthy. Xine ounces of compensatory fluid escaped. Right hemisphere, . 456 grms. Left hemisphere, . 450 grms. Right frontal lobe. . 185 „ Left frontal lobe. • 173 „ Cerebellum, . 130 „ Pons and medulla. • 19 „ ^Vhole brain = = 1067 grammes. Heart, 353 grms. ; valves competent to the water-test; atheromatous deposits at base of aorta; muscular walls unusually thinned, softened, and fatty. There was much dilatation of all its cavities. The lungs presented much congestion of their bases. Liver, 1233 grms. ; pale externally, and upon section fatty, and very friable. Spleen, 133 grms. ; dark and softened. Right kidney, 148 grms. ; capsule stripped with ease from a pale, fatty surface; the cortical layer was considerably thinned, and a large cyst was present. Left kidney, 145 grms. ; condition in every way similar to its fellow. TYPES OF ALCOHOLIC INSANITY. 333 It has already been shown by our remarks on the evolution of the psychical symptoms, that the invasion of the cerebrum by this agency often follows a very definite course ; and it is only in the later stages, when the wide-spread sclerosic changes in the nerve centres and the degenerative vascular lesion are most apparent, that we may get that protean aspect from a multiplicity and complexity of symptoms, which led Magnan to state that " we do not know, in fact, what symptom there is which might not be associated with chronic alcoholism under one or other of these conditions." * Such multiform symptomatology, however, does not pertain to the earlier stage of the affection, and we then cannot fail to note the tendency to a restriction of the more 2yronouncecl symptoms to one or the other sphere of cerebration. Thus it is often noted that the symptoms are almost exclusively sensorial, hallucinations being a most pronounced feature, whilst little or no genuine intellectual disturbance is recognised or but trivial motor ailment ; other cases present themselves where the ailment, from the outset, has been a failure in the sphere of the intellect, with little or no sensorial or motorial implication ; and lastly, there are those cases where the full action of alcohol appears to have been ex- pended upon the motor sphere of the brain after a very short term of sensorial disorder. Yet, the symptoms of implication of special cerebral territories too often dovetail and overlap for any trustworthy clinical classification to be adopted ; and still more frequently, if the history be one of progressive invasion of one territory after another. The more characteristic forms, however, under which cerebral alcohol- ism presents itself to our notice in asylums for the insane, are the following : — 1. Purely sensorial type — {a) common sensibility; (h) visceral; (c) special. 2. Primary amnesic forms. 3. Premature senility, especially implicating motor areas of cortex. 4. Delusional forms with vascular lesions in basal ganglia and medullated tracts of the cerebrum. 5. Motorial types. * Op. ciL, p. 158. 334 TDK INSANITY OF PUBERTY AND ADOLESCENCE. INSANITY AT THE PERIODS OF PUBERTY AND ADOLESCENCE. Contents. — Evolution of Puberty and Adolescence— Pubescence as Distinguished from Adolescence — Antagonism of Growth and Development— Excessive Metabolism of Infancy — Acquisitiveness and Mimetic Characters of Childhood —Initiative Tendencies of Adolescence— Pubescent Insanity in the Female — Delusions and Hallucinations — Relapses at Menstrual Periods — Hysteric Type of Mania— Stupor Coincident with Menstrual Derangement — Case of F. W. — The Blood in Stuporose States— Case of M. A. H.— Etiology— Ancestral Influence— Periods of Susceptibility— Statistics of Hereditary Factors— Ovarian Derangements and Pubescent Insanity (A. H.) — Amenorrhceal and Anaemic States— Influence of the Environmental Factors— Percentage of Hjemoglobin in Cases of Stupor — Pubescent Insanity in the Male— Sexual Divergence- Symptoms of Pubescent Insanity — Modified Forms (J. M.) — Masttirbatic and Uncomplicated Form of Pubescent Insanity — Etiology — The Moral Imbecile. The Physiolog'ical and Psycholog"icaI Evolution of Puberty and Adolescence. — Of all phases of human life, physiology deals with none more instructive than that of its critical periods. During the first and second dentition necessitated by altered condi- tions of life ; during puberty and adolescence, when the procreative faculties are being unfolded ; during the decay and obsolescence of these faculties at the menopause and grand climacteric ; and lastly, during the final retrogression of senility — the physiological changes are fraught with profound interest, and in no less a degree do serious departures from normal functional activities prove suggestive to the pathological enquirer. The period of puberty, if we neglect those variations due to climatic and social influences, is usually fixed between the ages of thirteen and fifteen for females, and of fourteen and sixteen for males. It is emphasised by certain well-marked external signs, such as the prominence and elongation of the larynx, and lengthening of the vocal cords in the male, with a corresponding lowering of the voice an octave or more ; an increased compass of voice in the female ; the appearance of hair on the pubes, in the axilla, and on the face in the male ; the widening of the hips in the female, and the greater vascularity of the external genitalia; an enlargement and greater activity of the sebaceous glands. These superficial evidences accompany the development of the internal genital organs, the maturation of the Graafian follicles, and the menstrual flux ; whilst the galactophorus ducts of the mammae pro- liferate, and true acini appear. The genital organs are usually mature at this epoch, so far as their structure and functional activity are concerned ; therefore, we may regard menstruation (which is conclusive evidence of puberty) as significant of the arrival of sexual thp: pubescent epoch. 335 maturity. But it is well-established that sexual maturity — that is, the capacity Jor hearimj children — need not necessarily coincide with puberty, for some girls are mature before menstruation has occurred. If we have recourse to Dr. White- head's statistics,* we find that the larger proportion of cases of first menstruation occur at the age of sixteen, and that nearly 60 per cent, of the four thousand cases of puberty recorded by him, occurred between the ages of fourteen and sixteen years. I have appended to his Table the percentages for each year : — At age of 10 years, 9 first menstruated ; or a percentage of 0"25 0-65 3-40 8-30 15-95 19-02 24-17 12-47 9-82 3-45 1-77 0-225 0-15 0-05 0-025 0-025 0-025 These Tables indicate that we may safely exclude all cases of insanity under the age of thirteen years, as not coming under the category of what we are about to consider, viz., insanity occurring in the male and female on the attainment of sexual maturity, and through the period of adolescence. The small percentage of 3-4 who show themselves sexually mature at the age of twelve, may be safely left out of consideration, more especially since cases of insanity occurring at this early age and up to fifteen are comparatively very uncommon. The term "sexual maturity" is liable to mislead; we must clearly understand by it — procreative maturity, and nothing more, since it by no means refers to full sexual divergence, in which the whole frame-work of the body participates, and in which the central nervous system also undergoes a profound change. The period of adolescence, however, may be regarded as extending from puberty to the age of twenty-one in females, and twenty-five in males ; and is characterised by most profound changes — especially by the completed development of the osseous system (Power and Sedgwick). Puberty involves changes of vast moment to the subsequent stage of manhood. Anomalous conditions are but too frequently established at this epoch, which lay the foundation for future physical and mental disability. Growth is actively proceeding, and the osseous and muscular systems are adding largely to their bulk, so as to vastly of 10 years, 9 11 , , 26 12 , , 136 13 , , 332 14 , , 638 15 , , 761 16 , , 967 17 , , 499 18 , , 393 19 , , 148 20 , 71 21 , 9 22 , 6 23 , 2 24 , 1 25 , 1 26 , 1 Sterility and Abortion, p. 46. 336 INSANITY OF PUBERTY AND ADOLESCENCE. increase the force and range of their activities ; but, with this active growth, differentiation and subordination of parts proceed until maturity is reached, and adolescence issues in full seXUal diver- gence. It is a well-recognised fact that full sexual divergence is not, as a rule, ensured until the framework and its musculature are approaching maturity {Carpenter); and in fact, the extreme differen- tiation requisite for this divergence of sexual characters appears ultimately to demand a cessation of that exaggerated nutritive activity which prevails in the earlier periods of adolescence.* The estab- lishment of an equilibrium in the metabolism is but one illustration of the great law of " antagonism between grOWth and develop- ment, which is intimately connected with the law of reproduction " {G. H. Lewes j). Tissue metabolism, therefore, is by no means a constant for different periods of life. The epoch we are considerino- is ushered in by greatly augmented activity of the nutritive functions, and affords a parallel to the conditions existing in earliest infancy and childhood. Thus, an infant is known to treble its weight within the first year of its life (LanJois and Stirling 1) ; and from Quetelet's researches it is seen that the first three years (and especially the first year) are periods of wondrously active growth, the increase in stature being as follows : — First year, a growth of Second ,, ,, Third „ Fifth to sixteenth year, ,, Twenty-tifth to thirtieth year. 20 Centimetres. 10 7 54 M per anniun. Full stature attained. As Trousseau states — the rapidity of growth during the first three years would, if not checked, result in a gigantic stature, but, " from the beginning of the fourth year, growth proceeds more slowly up to the age of puberty, when it takes a fresh start." § As at this infantile period (when the metabolism is so extremely active), every precaution is demanded to maintain the nutritive replacement of such tissue- change both in due quantity and quality, so also during puberty and * Thus Spiegelberg affirms that, "So long as the body has to provide for its own development, and consequently requires a large amount of formative material, it has no energy to spare for propagatbig the species. Till development has ceased, the organs which serve for that purpose remain inactive and small, and most of the important distinctions between the two sexes are absent." (Text-book of 3Iidwi/ery, New Syd. Soc,, vol. i., p. 59.) t Li/e 0/ Goethe, p. 355. + Op. cit., p. 528. § Clinical Medicine, Syd. Soc, vol. v., p. 82. ANTAGONISM OF GROWTH AND DEVELOPMENT. 337 adolescence, too much care cannot possibly be lavished in providing for the wants of the system — for it is at this epoch, beyond every other, that the physical and mental characteristics of the man or woman are permanently moulded or stereotyped. A parallel has been drawn by Trousseau betwixt this period of active infantile growth and the subsequent stage of adolescence, wherein he recognises analogies in morbid states at these respective epochs — the osteo- malacia of adults he thus places parallel to the rickets of infancy. Excessive expenditure of nutritive forces occurs with especial frequency at the period of puberty — the lad in usual parlance is said to be " out- growing his strength ; " he may add 5 or 6 inches to his stature in a single year {Trousseau). As Dr. Edward Smith also states it: — ''The period of puberty is associated with two classes of evils, viz., excessive development of the cerebro-spinal axis, and defective growth of the organs of organic life." * Such greatly-augmented metabolism taxes to the utmost the constitutional powers ; the requirements of the very rapidly increasing mesodermal tissues are imperative and urgent ; circulating albumen is rapidly abstracted by the growing tissues ; so that, unless a more generous diet be given, whereby such loss may be replaced, serious impoverishment must ensue. Functional disturbances as a consequence occur, whilst mal-assimilation furthers still more the vicious progress, and lays the foundation for nutritional ailments, such as tubercle, to which this epoch is so prone. The excito-motor irritability of infancy with its jerky, spasmodic, ill-directed movements, wanting in object, wanting in power, co-ordina- tion and skill, pass, in the growing youth, under the control of higher centres now evolving. Action is now directed to a definite purpose, and muscular activity becomes, in one form or another, the supreme pleasure of the organism ; yet, such activity is still chiefly tenta- tive, imitative, and wanting in indications of prescience, and in the accomplishment of elaborate or far-reaching results. Enjoyment appears to be the purport of this vigorous and active stage of life ; restless movement seems to be necessary for the expenditure of super- abundant energy ; and mental acquisitiveness lays up its store of facts for future use and application. The growing lad mimics the man. ' ' A wedding or a festival, A mourning or a funeral, And this now hath his heart, And unto this he frames his song ; Then will he fit his tongue * Cyclical Changes, p. 236. 338 INSANITY OF PUBERTY AND ADOLESCENCE. To dialogues of business, love, or strife, But it will not be long Ere this be thrown aside. And with new joy and pride. The little actor cons another part ; ****** As if his whole vocation, Were endless imitation." — Wordsworth. With the advent of puberty and adolescence all this is changed ; the rapid growth of the organism is now accompanied by rapid transforma- tions of the nervous centres, and as the parts chiefly afiected are the bony framework, blood-vascular tissues, and the musculature, so should we expect a greater or less tumult in the molecular transmutations occurring at the centric expansions of the motor system of nerves; hence, the higher co-ordinating centres — the psycho-motor area — must undergo important developmental changes. Correlatively, there dawns upon the mind the consciousness of fresh motorial capabilities — the overflowing nascent energies are directed into new channels of activity, rendering new tracts of cei'ebral tissue permeable ; and fresh motor combinations arise. An undue estimate of the subject's capacities usually exists ; the imitativeness of youth declines before the self- assuranee and originating" tendencies of the adolescent. Then there crowd in upon the sensorium the impressions aroused by the slowly-developing generative organs, and the vague indefinite notions of sexual relationships gradually take form in the definite divergence of mature age ; life begins to assume a reality which it formerly wanted. The mental characteristics are peculiarly of a constructive kind ; and the issue may be favourable or vicious, according to the education and training then received. In some, the emotional element will be favoured, and reverie indulged in to a vicious extent, may paralyse more useful and rational activities. In others, the imagina- tive faculties may be chiefly stimulated ; the love-sick lad will pour out his plaint in verse ; while girls, especially, are prone at this period to reverie and "castle-building." For the fostering of such vapid states in this class of subjects, the sensational novel of modern days appears specially designed. In the female we find the amiable virtues especially aroused, whilst in the male the dormant motor potentialities express themselves in the form of extravagant, half-developed, ill-digested plans, overweening self-esteem, and an egOism at once obtrusive and objectionable. In the Female Subject. Symptoms. — The insanity peculiar to this epoch is essentially an acute neurosis, not that the intensity of the symptoms is so great, PUBESCENT INSANITY IN THE FEMALE, 339 as that exaltation and excitement, the symptoms of an acute cereVjral process, prevail. Other forms of insanity (notably that incident to the early puerperal period) exhibit far greater intensity of excite- ment, yet acute mania prevails ; and, although extremely rare, even acute delirious mania has appeared. This predominance of maniacal states over states of depression is also a feature in the insanity of the puerperal ; but it is even more prevalent in the form occurring in adolescent females. Here, however, we note the influence of sex in modifying the type of the nervous process. Maniacal symptoms like- wise predominate over depression in the male ; but their frequency and intensity are notably less than in the other sex, so that the pre- valence of melancholic states with depressing delusions becomes in this sex a far more obvious feature. This we attribute partly to vicious habits, which also to a considerable extent influence our prognosis. With this emotional perturbation we find associated much intellectual derang-ement ; delusions of a definite form betray themselves at an early period of the affection ; and, as we shall see later on, are, in the maniacal forms, highly characteristic. The melancholic pei'versions usually embrace ideas of persecution or im- pending trouble ; notions which commonly assume the form of beliefs that the food was poisoned by relatives or friends. From a study of such intellectual and sensorial perversions, we find that delusions prevailed in one-half the cases of both sexes alike ; whilst about one- fourth of either sex were subject to hallucinations of the special senses, the visual and aural hallucination, separately or combined, being far the more frequent.* As many as 16 per cent, of the deluded cases entertained ideas of poisoning. Religious delusions existed in a few cases, but far more frequently did their imagined troubles afiect their social or domestic well-being, such as the following: — '■'■Robbed of all her possessions ; her house in flames ; mother dead and home ruined ; has murdered some one and is pursued by policemen ; is to be burnt alive ; men concealed in her toardrobe ; fellow-patients try to murder her." These were the delusive concepts of some typical cases of this class. In most cases of this form of mental derangement, however acute be the symptoms, it will be found that excitement abates usually at an early period, even within a few days or a week of admission to asylum care. The removal from prejudicial home influences, the regular administration of good nutritious diet, and the ensurance of a due amount of sleep, cuts short the attack very rapidly. Yet this is not permanent; one or more relapses are almost certain to * Or to be exact — delusions were present in 52 per cent, males, and 49 '3 per cent, females ; hallucinations prevailed in 25 per cent, of either sex. 340 INSANITY OF PUBERTY AND ADOLESCENCE. occur ere convalescence is finally established. All such rapid transi- tions from mental turmoil to calm are to be regarded with suspicion ; but more especially here, where the mental derangement is itself the expression of a process closely related to the cycle of ovario-uterine excitation. At each monthly period the menstrual molimen will be associated with greater or less cerebral excitation ; hence at these periods relapses are apt to occur {M. C. W., p. 209). When there is decided catamenial irregularity or suppression, when the anaemia of puberty exists, we may with confidence anticipate a relapse ; nor will the more general improvement in health ensure perfect recovery in the majority of cases, until the anaemia is so far removed as to issue in the re-establishment of this function. Not that the return of the menses cures the insanity, but that the natural advent of this flux indicates a state of healthy function generally, and a condition of the circulating fluid which brings up the nutrition of the cerebrum to its wonted vigour. Dr. Clouston has noted this tendency to relapse in the insanity of adolescence. "This tendency to short, sharp attacks, with intermissions of more perfect sanity than occurs in most other kinds of mental disease, with relajjses occurring one, two, three, four, and five times, and even more frequently, before recovery or dementia finally takes place, may be taken to be especially characteristic of this insanity of adolescence." * The excitement in the less intense forms is peculiarly associated with hysteric symptoms ; the subjects are, withal, often shrewd, calcu- lating, watchful of the effect produced on the bystanders, artful, and cunning, they will sham epileptic fits or other ailments. They are often wanton, exhibit much abandon, are erotic in gesture, conduct, and speech, and obscenity of remark is by no means infrequent. One patient at her home, regarded as oblivious to all that her medical atten- dants were doing for her, enumerated afterwards every remedy tried, mentioning the dose she had heard the doctor order, and repeating his diagnosis which she had likewise overheard. Others will show much hysteric sobbing or laughter, or, assuming a childish, pettish tone, will become querulous or wildly passionate. The extravagant nature of the delusion often stamps this hysteric temperament. Thus such sub- jects will declare that they are mangled, cut into small pieces, are to be boiled alive or crucified, yet exhibit no corresponding terror. Again we often find indecent conduct and erotic tendencies associated with conditions of religious ecstasy, and boisterous, unruly demonstra- tiveness alternate with states of great stupor. F. W., aged twenty, a married woman, had been deranged for a short period when seventeen years of age, but recovered at home. She was tall, of fair com- * Loc. cil., p. 551. STUPOR AND COINCIDENT MENSTRUAL DERANGEMENT. 341 plexion, muscular, but extremely pale and anaemic. Highly nervous and excitable. Regarded as of unstable mental equilibrium, a neurotic inheritance was naturally suspected, but upon close enquiry no clue was obtainable to such. Her former attack (mania) had been attributed to a lover's quarrel. About three months before admission to the asylum, she had shown a strangeness of behaviour not customary with her ; had become careless of her household duties, indolent, negligent of her husband's requirements, reticent and avoiding contact with her relatives, passing her mother and others without speaking to them. She then, without any expression of definite delusion, betrayed strong jealousy of her husband, was watchful and suspicious of his movements, passed restless nights, took food scantily, her health becoming more and more impaired. Sudden out- bursts of excitement supervened ; she was violent, and when thwarted, would try to escape by the window. During the whole of this time she suffered much from headache, and had what were described as fainting fits upon several occasions. Under medical examination her condition was that of acute mania, a strongly- marked hysteric element being associated therewith. She would roll upon the floor and sham an epileptic fit, talking incessantly much incoherent nonsense ; no rational reply could be obtained from her. Later, she exhibited a tendency to intersperse religious phrases and ejaculations, with utterances of an erotic and obscene nature ; her demeanour meanwhile varying from that of a fixed ecstasy to conduct betraying strongly-marked erotic features, boisterous laughter, or causeless weeping alternating with violent passion and destructive tendencies. The respiratory and circulatory systems were normal ; but, as before stated, there was extreme anaemia, which accounted for the persistent amenorrhoea from which she suffered. Easton's syrup was ordered, and a full nutritious dietary enforced when necessary by compulsory feeding. The maniacal symptoms continued for three weeks unabated ; then periods of calm, interrupted by sudden excitement, passed into a stage where nocturnal excitement alone prevailed, during which her habits were degraded. She was utterly regardless of all decency, and erotic tendencies were still pronounced. The patient's health now steadily improved ; she put on flesh, but was still very pale and anaemic. There was now no excite- ment manifest, her condition passing into one of listless apathy and indifference, and even partial stupor. Decoction of aloes with iron was administered, and a full amoimt of nourishment was secured, her appetite being satisfactory. At intervals, she was aroused from her lethargy and would engage in a little needle- work ; six months after admission menstruation supervened for the first time, and a notable degree of mental improvement appeared almost coincident there- with. She became cheerful, affable, and active, and left the asylum completely recovered a few weeks subsequently. The tendency to stupOP is especially marked in those cases where there is well-pronounced menstPUal derangement, and its alter- nation with hysteric excitement is a frequent and interesting feature in the insanity of puberty.* In the stage of stupor complete apathy * In such instances of stupor associated with menstrual derangement, changes of undoubted moment occur in the constitution of the blood. The red corpuscles are seldom diminished in number to any notable extent, but their hajmoglobin is in all cases alike reduced in amount. In some we find the corpuscular value below half the normal, as in the case of C. \V. (p. 351), where it is represented at •4.5, or that 342 INSANITY OP PUBERTY AND ADOLESCENCE. . prevails, amounting at times to fatuity ; the expression is stupid and demented; the pupils widely dilated; saliva dribbles from the mouth; none of the wants of the system are attended to ; the hands hang helplessly, and both extremities are cold and livid. The subject is usually profoundly ansemic, a haemic bruit may be heard over the aortic valves, or the bruit-de-diable over the subclavian. Such symp- toms are almost invariably associated with suppressed menses, and frequently the vicious habit of masturbation prevails. M. A. H., aged nineteen, single, a young girl of delicate physique, very thin and reduced, pale and exceedingly anaemic, suffering from her first attack of insanity of about seven days' duration. She inherited a neurotic tendency from the father's side ; the great-grandmother was a paralytic ; the father was insane ; and the daughter was described as being of high-strung ner\'ous tempera- ment. She had been intelligent, and had taken an active interest in her father's business (mercantile) ; his late illness was regarded as the exciting cause of her attack. The patient had always suffered from catamenial irregularities, and the menses were now completely suppressed. Restlessness and insomnia were followed by hallucinations of the special senses and delusions ; she believed she was to l>e sent away as a soldier ; was pursued by a policeman ; thought her food was poisoned, and obstinately refused it. When brought to the asylum, her blood- less aspect was very notable, and her physical prostration great ; she stared vacantly around, quite inappreciative of her position and relationships, occa- sionally uttered a few articulate words or disconnected meaningless sentences, and did not reply to any question asked. Her hands were decidedly cold and livid ; in fact, the previous excitement had lapsed, and a condition of stupor existed ; the catheter had to be regularly used before her admission. Port \v'ine, milk and eggs, with extract of beef, were given freely. Ammonio-citrate of iron ordered twice daily and 30 grains of chloral when required at night (chloral, however, was required but seldom, as she soon obtained sleep without its aid). During the whole of the succeeding month, patient's state was one of extreme mental torpor and apathy ; she usually sat in a half-bent posture, utterly slovenly, and negligent in her habits ; saliva dribbling from her mouth ; her expression vacant, fatuous ; the pupils were dilated and sluggish ; the extremities blue and cold ; volitional effort was rare, and compulsory feeding had to be continuously resorted to. Occasionally she swayed to and fro, and gave utterance to a piteous whining or a meaningless babbling. This condition of acute dementia continued for twelve months. Her Ijodily health then slowly but progressively improved, and during two succeeding months she regained flesh at the rate of 10 lbs. per month ; mental torpor, however, still continued, and persistent amenorrhcea was associated therewith. With this progressive physical improvement there now of R. W, J. at '44. The amount of haemoglobin, as given by the several cases at page 351, fluctuates between 40 per cent, and 80 per cent. Even in the most pro- found stupor of W. S. associated with habits of masturbation (see pp. 160, .351), the percentage of haemoglobin never fell below 68 ; nor in any case of simple uncom- plicated stuporose insanity have we seen the colouring-matter reduced to the extreme limits seen in cases of haemorrhage. Thus, in the case of M. A. M., the haemoglobin registered as low as 20 per cent. ETIOLOGY. 343 appeared a gradual advance to more noi-mal states of consciousness ; quietly seated in her chair, it was noticed that she was becoming observant of what passed before her, and she watched with apparent interest, but without assummg any further initiative, the occupation of the patients around her, and soon her blank staring gaze gave place to occasional expressions of intelligent recognition, an amused smile or a play of furtive emotional states. Not until seventeen months had elapsed did she begin to speak rationally, and about this time the catamenia appeared. She beciime bright and lively, but still betrayed many morbid propensities, and was mischievous, unruly, and excitable. Her progress to perfect sanity was interrupted by a short relapse ; but her recovery was ensured two years after her admission. Impulsive as these forms of insanity appear, our records show few of those desperate attempts at self-destruction which characterise some other forms of insanity. The actual percentage of cases returned as suici- dal is high (40 per cent.), whilst in male adolescents it falls to 22 per cent. This might lead one to infer that the cases were nigh as suicidal as in the form of insanity prevailing at the climacteric, when such impulses are strongly developed. This, however, is not the case. Hysterical forms of mania are prone to suggest or threaten such acts, but all such attempts are usually feigned and prompted by the morbid desire to create sympathy or produce effect. We must, therefore, not be misled by the fact that these cases have committed outrageous acts which seem to imply a suicidal tendency, or have frequently threatened to destroy themselves. They are not in the majority of cases suicidal in the sense that the subjects of puerperal and climacteric mania are suicidal. On the other hand, they are far more likely to turn their destructive efforts against others, and our statistics emphasise this aggressive, dangerous tendency in 48 per cent, of the female, and 55*5 per cent, of the male inmates. Etiolog'y. — The excito-motor exaltation of the nervous system, during the first dentition, has also its parallel in the explosive condition of the nervous centres in higher planes of cerebral activity during the evolution of the generative functions, and the sexual divergence of the epoch of early adolescence. Hence, this period is the second great trial of the constitutional powers of the subject, and is especially prone to reveal any dormant inherited vices, and call them into full activity, either as convulsive affections of the motory apparatus, such as chorea or epilepsy, or as psychical anomalies, especially of an hysteric type. We shall see further on, that the type of insanity which prevails at this period of life is essentially that of an hysterical form. We have alluded to the rhythm of nutrition, that mysterious law which dominates the evolution of all organic forms, vegetable and animal alike, as exenipliticd in the high- tide of infantile growth ; the ebb of growing youth ; the renewed 344 INSANITY OP PUBERTY AND AD0LE3CENCE. flow at puberty and adolescence ; and the final arrest at the maturity of manhood. Along this curve of simple vegetative growth appear the pulsations of ancestral influence. Those epochs of new develop- ments, or the points when differentiations occur, fitting the organism for new or altered conditions of life ; the ancestral energy, so to speak, adapting the organism to its altered environment — dentition, puberty, adolescence, are such epochs. They are characterised especially by the tendency to reproduce anCGStPal developments — whether normal and physiological, or only deviations from the laws of health — the new character appearing at COPPespondingf periods of life in parent and offspring. Yet it must be borne in mind that ancestral vices do not necessarily reappear in the offspring at tlie same period of life as they appeared in the ancestor, and that then, " the transmitted characters much oftener appear before, than after, the corresponding age." {Darwin).* This law of inheritance has a direct bearing upon the insane heritage of adolescents, since, in them, it appears that with special frequency, we find the ancestral vice developed late in the life of the parent, and to be frequently an illustration of atavism. If we recall Darwin's remarks on the distinction between tPansmission and development of characters, we may also more readily comprehend such pathological atavism. A remarkable persistence of any developmental vices at these periods of active life also exhibits itself, whether inherited or acquired, with which it is well to be acquainted. In this connection, it was shown by M. Gosselin many years since, in a com- munication to the Academie des Sciences, that many special surgical afifections of adolescents tend to persist, increase, or relapse throughout adolescence, but such tendency is lost at manhood — e.g., ingrowing nail, valgus doloureux, suppura- tive epipbysal osteitis, epiphysal exostosis, subungual exostosis of great toe, and fibrous naso-pharyngeal polypi will usually defy permanent cure tmtil the twenty- fifth or twenty-sixth year is reached, and temporising, therefore, is often called for until adult age is attained. + Then again, it would appear reasonable to presume that all ancestral tendencies which are transmissible, would be peculiarly potent at those periods when the organism strives to reproduce itself; and that as ovulation occurs there would be concentred towards Certain points, so to speak, the tendency to reproduce similar peculiarities, etrays an aberrant tendency in the reactive faculties of his mental being. His newly-awakened faculties, like all nascent mental products, are wondrously fresh, active, and potent ; hence, naturally tending to falsify relationship from want of a due contrasting power, his powers and abilities are vastly exaggerated, and beget an unfortunate egoismus. His plots and schemes savour of the wildest vanity ; whilst the self-complacent all-sufficiency with which he reveals these plans betoken the overpowering of normal contrasting experiences by the new-begot factors. Every faculty whereby he becomes a unit of power in the domestic or social circle is represented in false quantities, and a disproportionately intensified and overweening self-esteem is the natural outcome. The sexual divergence at this immature age certainly tells in favour of the gentler sex. The male adolescent has had his characteristics faithfully rendered by the amiable satire of Thackeray in the person of Pendennis, whilst his frailties have received less consideration at the hands of Carlyle.* The aiflative emotional states, the newly-awakened instincts, the flood of new impressions, and the sense of widely-expanding faculties, constitute a physiological sta^^e of development which is natural to all at this period of their life. Its obtrusiveness will always be more or less noted ; manly sports and exercises, with a moderate use of the intellectual faculties, will, however, do much to carry ofi" the overflowing mental energy in a healthy channel ; but of all ftiults, that of introspection and subjectivity at this age should be avoided. A false code of morals does much to foster this ten- dency, and has much to answer for in the intensification of mental anomalies in youth. Need we recall the religious asceticism of the Middle Ages as confirmatory of this fact 1 A transitional epoch, such as this, is surely not a suitable period for self-analysis; and this is emphasised by the well-known fact that youths, encouraged * " I have heard it affirmed (surely in jest) by not unphilanthropic persons, that it were a real increase to human happiness, could all young men from the age of nineteen be covered under barrels, or rendered otherwise invisible, and there left to follow their lawful studies and callings, till they emerged sadder and wiser at the age of twenty-live. With which suggestion as a practical scheme I nowise coincide. Nevertheless, it is plausibly urged, that as young ladies are to mankind, precisely the most delightful in those years, so young gentlemen do then attain their maximum of detestability. Such gawks ai'e they, and foolish peacocks, and yet such vulturous hunger for self-indulgence, so obstinate, obstreperous, and vain- glorious ; in all senses so froward and so forward." — Sartor Eesartus, "Getting under way." 23 354 INSAN'ITY OK PUBERTY AXD ADOLKSCENCE. at this period by misguided parents or tutors to lead a too studious sedentary life, devoid of healthsome exercise, and to subject their mental life to a pseudo-religious training, embracing rigid introspec- tive exercises, lapse readily into the worst forms of mental derange- ment, and indulge, above all others, in secret sins and sexual vices. This period witnesses the profound changes of complete sexual divergence, and the attainment of those mental chai'acteristics which distinguish the one sex from the other. The late epoch is charac- terised by certain important features, which especially map it out as the earliest marriageable period free from special risks, and has, therefore, been termed the period of nubility {Matthews Duncan). This author shows us, that, if we compute the number of first births in newly-marvied women at difi"erent ages, we shall find that the greatest "initial fecundity" occurs between the ages of twenty and twenty-five. Precocious marriages expose the mother to the risks of death in child-bed, or, if she survive, predispose to the bearing of an excessive number of children. In women, the changes occurring in the pelvic bones from puberty forward are, of course, of vital importance, and illustrate well the immaturity of the ossific skeleton for the full functions of maternity up to the age of twenty. Symptoms. — The subject usually comes before us excited, highly elated, his attitude, demeanour and expression indicative of intense self-complacency and assurance. The excitement may be very acute, attended with continuous garrulity, incoherence and movement, yet the buoyancy of spirits is a striking feature at all times. In the more coherent states the subject, unprompted, reveals his exalted notions ; talks of his acquirements as a scholar; expatiates on his skill as a workman; revels in the supposed possession of rare and much-esteemed faculties, of persuasive eloquence, of poetic talent, of wondrous vocal powers, of the gift of tongues, of artistic abilities, or histrionic powers of a high order ; or his thoughts course in the direction of his muscular energies and capacities, he assumes his strength to be almost superhuman, and regards himself as a champion walker, runner, wrestler, or the like {F. S., p. 291). Even if such beliefs are not definitely expressed, egoistic sentiments prevail, and are the fount from which issue extravagant schemes of action. Inventiveness, ingenuity, cunning, are all assumed by this alien being, whose mental life is awaking, though in an anomalous form, to the appreciation of the keen competition of existence. We observe a similar condition arise at a later period of life, in that fatal malady general paralysis ; but here, to account for the symptoms, there is a far more profound structural alteration, which progressively becomes SYMPTOMS OP PUBESCENT INSANITY. 355 more and more involved, until utter fatuity and paralysis result ; yet in the eai-ly stages of this disease the same egoism, the same lofty ideas of the subject's physical powers, wealth, capabilities, ingenuity and skill come to the fore. Towards their own sex this self-assumed superiority calls forth often an aggressive conduct, an overbearing manner amounting to arrogance, which involves them in frequent disputes and quarrels. To the gentler sex their behaviour is often gallant and condescending, sav- ouring of a precocious manliness which does not accord with their mental and physical development. As Dr. Clouston states : — " In the males heroic notions, imitation of manly airs and manners, an obtrusive pugnaciousness, and, sometimes, a morbid sentimentality Avere present." * And again : — " The physical appearance of the males Avas boyish, and of the females girlish." On the other hand, it must not be forgotten that such adolescent forms of insanity are prone to prurient thoughts and erotic promptings which make them objects of anxiety to their guardians in relation to the other sex. All the above symptoms are liable to intensification by the vicious habit of mastur- bation still further reducing the nutrition of the nervous centres ; above all agencies does it prove most powerful in leading up to chronic delusional insanity, or into hopeless dementia. The cases of insanity occurring from puberty to the completion of adolescence naturally arrange themselves under two categories : — («.) There are those in whom maniacal excitement (often very intense) prevails, with the egoistic, self-laudatory state alluded to ; and often alternating with conditions of mental stupor and cataleptic states. (b.) And there are those of a later age, in whom delusionS are the prominent characteristic — delusions more often associated with mel- ancholic depression than with maniacal excitement. In fact, the proportion of delusional cases occurring between the ages of twenty-one and twenty -five is far greater than that which occurs between thirteen and twenty-one. It has already been remarked, that cases of melancholic depression are of far less frequent occui'rence in the female than in the male adolescent, and since adolescence is completed in the female earlier than in man, age possibly has much to do with its predominance in the later adolescence of the male sex. Our statistics indicate, that of all cases of insanity apparently influenced by adolescence in men, i.e., from the age of fourteen to that of twenty-five, inclusive, about one-half occur up to twenty-one years of age,t and the remainder subsequently ; or, to be * Lectures on Mental Diseases, p. 552. t From the age of thirteen to that of seventeen there were iO cases of insanity out of a total of 3,000. 356 INSANITY OP PUBERTY AND ADOLESCENCE, exact, 142 occurred before twenty-one, and 135 afterwards and np to twenty-five years of age. As in women, so in men we find that there is a rapidly-increasing number of cases from the age of fourteen up to that of twenty-one. As modified by the vice of masturbation, we find tlic prevalence of pseudo-religious exaltation, indulgence in cant, and development of fixed religious delusions. One patient conceived himself transformed into the Almighty; another believed he was inspired by spiritual agency and could perform miraculous works; another had the gift of tongues. Then come periods of great impulsiveness (often prompted by visual and aui'al hallucinations), sudden ferocious violence, indecent assaults ujjon the other sex, and even suicidal acts of determined character, attempts at rape, strangling, drowning; these are not i;nusual features in the masturbatic adolescent. The type is by no means always that characteristic of the ordinary sane masturbator, for, though the jihysical symptoms of cerebro-spinal irritation may be equally pro- minent in both, yet the mental ailment borders more often on that of delusional insanity. The shy, averted look, timidity, obsequious- ness, and shunning of society, may be replaced by a bold audacious bearing, a shameless confession (and even defence) of their habit, a shocking disregard of decency, and an entire absence of the sense of moral degradation. Even if the vice be concealed, the pale ansemic aspect, the dark areola around the eyes, the dilated pupil and the general atony exhibited in feeble heart and languid circula- tion, enfeebled motor power and disturbed co-ordination, the amnesic states, occipital headache {Sjntzica), the vague unreasonable alarm, eccentric dislikes fostered, and unfounded suspicions, soon attract our attention. J. M. , aged nineteen, labourer; admitted June, 1S82, A paternal uncle died demented; a second cousin, S. M., is at present a patient in this Institution — no intemperance. J. M. had been addicted to masturbation since the age of fourteen, and though conscious after some time of its prejudicial effects, was unable to discon- tinue its indulgence. During the four years preceding his admission to the asylum he grew more and more despondent, brooding ever over his Bible and Prayer-book, neglecting his work, and wandering abstractedly about the fields. This condition was interrupted by longer and shorter remissions, but finally settled into a permanency of deep depression, the outcome of which appeared, some five months before being put under care, in a successful attempt to emasculate himself. Immediately on its performance lie had two convulsive seizures, not, however, recurring. A short period of mental improvement followed, and then he became worse tlian ever. Three years befoi'e this occurrence he had had a fall from a hayloft upon his head. When admitted, he was tearful and much depressed, but communicative. His object in castration was ''to prevent the jiossibility of masturbation," but the object attained, he was overcome by fear of having "cut himself off from God, MODIFIED FORMS — CASE OF J. M. 357 and lost his soul." This belief he maintained during his residence, but became nevertheless more slightly oppressed by it, less gloomy and despondent, and decidedly improved in some points inasmuch as he employed himself actively, and showed sociability. Was sent to home-care at the expiration of fourteen weeks. Of the interval of twenty months which preceded his second attack, the first eight were spent satisfactorily on the whole, although occasional relapses occurred ; the ensuing twelve months witnessed a gradual deterioration of his condition, ending in a return of his despondency, with some outbursts of violence. When brought back to the asylum he was much depressed, partly by his religious fears, partly by his regret at having emasculated himself; he disclaimed suicidal tend- ency. Considerably hypochondriacal for a few weeks, he then made really steady improvement, and became active, conversable, and easy in his mind regarding his future. Was discharged "recovered" at the end of four months. He kept fairly well for about five months ; but during the next two, he fell again into a state of depression, brooding, and occasional turbulency. Tlie same prominence was not given to religious sentiment in this attack, but he expressed his belief that it was his duty and God's will that he should blow up London. No further delusion was manifested, nor suicidal inclination acknow- ledged ; he always maintained a taciturn, moody expression, and evinced much hypochondriacal feeling. At times he expressed himself as hopeless of his future salvation, &c. , but these phases were short, and probably not of such real intensity as on previous occasions. Convalescence occurred after the lapse of ten months. A fresh recurrence took place a month after his discharge, and he showed suspicious and violent tendencies. This attack was characterised by continuous sullen, quarrelsome, vindictive conduct, and utter refusal to employ himself, for the greater part of the time. Was wont to stand in a corner of the room, staring blankly in front of him, with his hands in his pockets, and to become violent and abusive if disturbed, and even so, without any provocation. Pwequired forcible alimentation. On one occasion he was found to have tied his neckerchief tightly around the scrotum, producing much cedema. After twenty months' care showed no improvement. He was transferred to Menston, "Without attempting any refined analysis of the multifarious groups which might be comprised under the head of insanities at adolescence, still less att(^.mpting to dignify with specific significance the varied symptoms of such groups, it will best serve the purpose of the student to direct his attention to the symptoms proper to insanity at this l)eriod of life, and to the modifying influence of vicious habits of life, e.g., masturbation and drink; intercurrent afiections, such as phthisis; or defective states of the blood, as in anaemia. And first, let us draw the distinction clearly between the forms of insanity arising during adolescence, and those subject to the modifying efli'ects of masturbation. In drawing such a distinction we must keep in mind the fact that the vice is so frequent that a pure xmcomplicated form of insanity at this period of life is the exception, not the rule. As already stated, a great proportion of our adolescent cases are found to be mild cases of congenital defect, and these are, as is well known, prone to the vice. Again, the period of life is prone to induce the habit in a case of 358 INSANITY OP PUBERTY AND ADOLESCENCE. insanity of any standing, even if the subject were not previously acUlicted thereto ; and in the later stages of such unfavourable cases as lapse into dementia, the habit almost invariably exists. In a pure uncomplicated form of insanity at adolescence, we find the patient in a state of sub-acute or acute excitement, with exalted self- feeling. His egoism (which is the prominent feature) is like that of the victim of general paralysis in its obtrusive aspects ; there are notions of wealth, superabundant enei'gy and power, enviable dis- tinctions and rank, a general feeling of bien etre ; or the youth may have wondrous plans in view, exhibit restless energy, incessant scheming, yet withal he shows a frank, bold, generous bearing wholly distinct from that worn by the masturbutor. He is garrulous, obtrusive, often objectionably so to his elders, yet there is nothing of a repulsive character. His egoism is ever tending outwards towards the realisation of his phantom schemes j there is no self-engrossment and abstraction. His egoism, again, has more self-confidence, and appears as a self-assertiveness and assurance, so well grounded in the patient's sentiments and beliefs, that opposition, dissent, restriction appear impossible, or too contemptible to be taken into account ; there is not the fear, suspicion, hatred of the environment fostered by the other form. Then again, the physical symptoms due to the vice are absent in the uncomplicated form. The recoverability, again, of insanity at adolescence is very great ; the prognosis in insanity modified by onanism is veiy grave ; in fact, the majority of unfavourable cases of the former are accounted for by the frequent lapsing into this habit. As modified by the vice, however, the mental symptoms are those of a narrow repulsive egoism, flavoured by pseudo-religious hypochondriasis, often with much shy- ness and reserve at first, but later on, obtrusive and unseemly {F. S., p. 291). The pseudo-pietistic notions early developed, long before marked mental derangement is actually recognised by the patient's friends, are of the most cramped and selfish nature. Obsti- nate narrow bigotiy often results in a complete intellectual famine, the patient becoming a prey to some sectarian community, which succeeds only too well in checking the due expansion of the moral nature, and in fostering the self-opinion and conceit of its victim. We find the parents often speak of such an one as of deeply-pious habits of thought and life, as eminently conscientious, as of an amiable, modest, and retiring nature, failing wholly to realise the deep-seated egoism and self- contemplative abstraction which lies beneath such natures. "With this morbid subjectivity there is often associated much timidity, unexplained dread, tremblings, frightful dreams and " nightmares," often hysteric seizures. In the intellectual sphere there is a great ETIOLOGY. 359 want of spontaneity, lack of energy and mental movement, which may border on imbecility; irritability, spasmodic temper, impulsive conduct alternate with gloom, despondency, torpor ; the mood is very variable. Then, again, hallucinations of sight and of hearing very fi-equently prevail ; and often explain the timidity and terror of such cases. The physical symptoms are no less striking than the mental, and bespeak the wide-spr-ead exhaustion of the cerebro-spinal centres. Such symptoms are— the ansemic aspect, associated with general atony ; the dilated pupil ; the languid circulation and vasomotor paresis ; cold blue extremities, a sense of weakness in the lower extremities, and a slightly ataxic gait, often swaying and inco-ordinate movements. We thus see that the symptoms indicative of the psychosis, inci- dental to this period of life, are far different to those aroused by the vice of masturbation. The egoism and afflative state of the maniacal adolescent are readily recognisable, but their symptoms undergo varied modification and intermixture upon addiction to this vice. Thus, when we find the adolescent, instead of improving rapidly, makes several partial recoveries only to relapse, and especially when such relapses are towards mental torpor with general lack of muscular energy and vascular tone, we at once suspect addiction to this vice. So when we find the averted glance, the widely-dilated pupil, the expression and demeanour indicative of efi'eminate self-engrossment, and delusions based on the sexual instincts, indications of sexual pel-versions or intensified egoism, we naturally look for a similar origin. Aural hallucinations, timidity, distrust, loss of self-confidence, with this concentration of the self-feeling are all harbingers of the same vicious habit. EtiolOg'y. — A very large proportion of the cases of acute excitement are constituted by congenitally-weak minds, and the number of such cases which precede the age of twenty-one is nearly double that of those which follow ; in fact, the age of puberty and adolescence is peculiarly the trial-period for subjects of congenital defect — then, if at all, will their deficiencies become notably prominent. This remark does not necessarily apply to cases wanting in intellectual aptitude, but rather to those with the defective moral control which characterises so many of our cases of congenital weakness. The whole moral being, as we have seen, is subjected at this period to revolutionary changes through the incoming of new sensations and the turmoil produced by this inter- penetration of the old self; new sentiments spring into life, fresh- begotten emotions (redundant in energy) tend to further ovei-throw canons of belief; and the judgment is strongly swayed by such overbal- ancing factors. At this period, if at any time, is a duly-balanced moral control necessaiy to the well-being of the subject. How often it fails 360 INSANITY OF PUDERTY AND ADOLESCENCE. is too flagrant a fact to be dwelt upon. How much of such failure is due to immature and narrow systems of education, to vicious and cramping customs of life, and to injudicious parental training is also only too apparent. Of the most vital importance is it that the lines of development of the moral nature at this critical epoch should be watched with the greatest interest, and that the parental and tutorial guidance should be of the most enlightened and prospective kind, to insure the due integration and elaboration of the chaotic mass of impressions incrowding at this stage of mental evolution. It is out of such misguided states arise the religious fanatic, the sordid sensualist^ the repulsive masturbator, the nerveless sentimentalist, and the vicious and impulsive characters who are to the end moral wrecks, bearing witness through their lives to the violence and tyranny of the adolescent storm. It is the epoch of great moral convulsions, which in the insane is accountable for those extraordinary delusional concepts of a religious character, which (even in the insane) have so bizarre an effect. The ideas of being crucified or of being subjected to martyr- dom of a revolting kind, of being transformed into the Almighty, exemplify the kind of notions which readily spring into life at this epoch in those who become alienated. Such conceptions, it may be noted, would be scarcely possible at a much earlier age ; they deal with the subject-matter of late periods of development, the material of religious doctrines and sentiments, and therefore indicate an early denudation of evolving mind. Prior to the mental commotion of puberty these moral imbeciles have, maybe, shown an aptitude for learning, a brightness of intelligence proportionate to their age, and little (beyond an ill-governed passion, or vicious or cruel tendencies) to indicate the approaching danger.* When the sexual instincts are aroused at piiberty, their dwarfed morale renders them easy victims to the vice of masturbation, which, perhaps, is the best criterion of defective moral control. If persisted in, it no longer remains the symptom of a mental defect, but the prolific source of a deepening malady of the nervous centres, whereby the mental affection is itself coloured. Masturbation, as a symptom of disease, is, of course, prevalent in insanity at all pei-iods of life; but adolescence is the epoch, especially, when its indulgence is apt to be the exciting cause of a grave developmental malady, which otherwise might have been tided over. We have on moi'e than one occasion watched the advent of puberty in the successive members of a highly-neurotic family where insanity, drink and apoplexy had been the ancestral curse, and have seen one after the other succumb to this epoch of their life, the vice * See also on this subject Dr. Hack Tuke. Psychological Medicine: Art., " Pubescent Insanity." ILLUSTRATIVE CASES OF ADOLESCENT INSANITY. 361 being successively engendered as the sexual instincts came to the fore. There are few physicians who do not meet with numex'ous instances of this class. The explosiveness of nerve-tissue in the imbecile is a characteristic feature of their case, and we can conceive no condition more likely to issue in the impulsive forms of insanity than that of a vicious imbecile arriving at the period of puberty and a victim to a perverted sexuality. The two following cases are typical instances of the insanity, incident to the period of adolescence, with its alternations of stupor, and of wild maniacal excite- ment and dangerous impulsiveness :— L. C, aged twenty, single, a clerk in a merchant's office. Had previously been insane for five months at the age of eighteen and was then strongly suicidal. He has been always anxious since this attack lest he might take his own life some day. A few days prior to his admission he had become peculiar, reserved, depressed, and showed much failure of appetite ; and on the previous night he went to bed and stabbed himself in the chest (though not dangerously) with his penknife. His health in other respects had been good ; there was no neurotic history ; no personal history of drink or cranial injury. He was of average height, somewhat thin and reduced ; his complexion was pale and pasty ; his pupils were dilated and mobile. He had a heaAy, listless expression, averted his face during conversation, was evasive and flippant in rei)ly. He at times assumed a languid affected air ; and his mental operations were slowly performed : he was reticent, depressed, and sighed deeply. He was suspected to be addicted to masturbation, and this suspicion was fully confirmed on admission ; his vicious habits were most inveterate, and all remedies tried for the purpose of reducing this tendency completely failed. The patient made a most determined indecent assault iipon a female the day after his admission. He remained dull and lethargic, in a state at times amounting to stupor ; took no interest in anything occurring in his ward ; was careless in his habits, but at times wilfully mischievous. Suddenly, however, after several months of stupor, he asked for a pipe of tobacco, spoke cheerily, rationally, and began to sing an old air, play dominoes, and read. He attributed his own improve- ment to his discontinuance of his vicious habits. P. C, aged twenty-three, a labourer, but intelligent, was admitted for his first attack of insanity, from which he had suffered for three days past. The onset was very sudden, and quite unexpected by his friends. He had worked as iisual up to eight o'clock one evening. On returning home he became obstinately silent, and, on retiring to bed with his brother, he attacked the latter savagel}-, smashed the pictures on the walls, &c. He has been maniacally excited since, shouting, laughing, and singing aloud ; proclaims himself the second Messiah, at other times another Saint Patrick, and broke a hole through the ceiling (as he explained) " to let the Devil out." On admission he was very furioiis, was haggard and exhausted in appearance, and required compulsory feeding. Milk and egg, with brandy and soda-water, were immediately given him, and feeding had to be resorted to for two days, during which period the excitement continued unabated and he passed sleepless nights. Six ormces of brandy have been given liim daily with milk and egg and lieef-tea. He has had the succus conii in four-draelim doses three times daily. The third morning after his admission a qiiiet night and peace- 362 INSAXITV OF PUBERTY AND ADOLESCENCE. ful sleep were reported, and he took his breakfast voluntarily. He was now able to converse and give a coherent account of himself and his feelings. He stated that he had been recently attending religious services, and that they had "opened up his mind more clearly to religious truths." He then began to feel that all his movements were prompted by "inspiration," and things around looked different ; the face of every one he looked at brightened up. When he attended the con- fessional subsequently, upon stating that he did not drink, a voice intimated to him that he would go to Heaven ; and he at once Ijecame tilled witli a supernatural joy. His religious fervour now passed into feelings of great excitement, during which he often believed himself to be crucilicd with his head downwards. On one dark night the room became suddenly lit up by spectral lights, and voices were heard by him frequently when he could see no one present. He believed that his own rambling talk were the utterances of the Almighty. There was no history of hereditary epilepsy, or of drink. He had taken very special interest in the Catholic missions, just about the time when he became maniacal. He was still a little hazy and confused, but quite rational, when giving the above account of himself. From this period he made a steady recovery, and was discharged in five weeks without a relapse. Prognosis. — Of all types of insanity that occurring at the puerperal period is one of the most recoverable (80 per cent.), yet the recovery- rate is nearly as high for the insanity incidental to adolescence; in the female sex the mania runs a course of some months, usually marked by one or more relapses, but one half of the cases recover by the seventh, and neai-ly three-fourths are well by the tenth month. {See Chart B.) It is far otherwise with the same affection amongst men; in them, ■where (as alread}^ stated) depression is often largely present, the prognosis is far less favourable, and a wide margin must be allowed for partial recoveries, chronic incurables, and fatal cases. On com- paring the percentage of recoveries in puerperal, adolescent male and female cases, the above statement is fully verified, thus : — Puerperal Adolescent Adolescent Cases. Females. Males. Kecovery-rate per cent., . . SO'O 73'3 oS'4 A glance at the following table of results of treatment in either sex, ■will indicate in no uncertain terms the more unfavourable nature of this form of insanity in the male sex : — Recovered. Believed. " ,"^,° ; . Died. Remained as Chronic. Female adolescents per cent., . 73 '.S 7'G 13 "5 5 "4 Male adolescents ,, . 5S'4 14 4 17*3 9'7 The unfavourable cases form 2G-5 per cent, of the total number of cases in females, and 41-4 in males. We have already alluded to the actual recoverability of this form of insanity in its i-elationship to sex; it will also repay us to observe more particularly the duration of the attack up to cure in both sexes, PROGNOSIS AND RECOVERY-RATE. 363 in other words, the recovery-rate as affected by time. [See Chart B.) If for this purpose we glance at the chart of recoveries first as regards the male adolescent, it will be evident that during the first six weeks but ten cures will result out of a total of one hundred and sixty-two: during the next fortnight an addition of ten recoveries just doubles this number, and then for the third, fourth, and fifth months a rapid inci'ement of cures, viz., seventeen, fourteen, and twenty-five respec- tively; so that the summit of the curve is I'eached at the fifth month,* bij which jyeriod nearly one-half the total member of cases have recovered. Then a sudden drop midway occurs for each month from tlie sixth to the ninth inclusive — i.e., from ten to twelve cases for each month respectively. From this time up to twenty months the monthly cui've once only rises above four, being usually much lowei", and a few rare and unex- pected cures occur (as in other forms of insanity) at later periods still. Now the curve of recovery for females differs considerably from the foregoing, being less abruptly broken, being more uniform and sus- tained in the early half of the period of recoverability, f and exhibiting beyond this but one abrupt elevation; also by the critical period, if by this term we may so name the period of greatest recoverability, occur- ring from the fourth to the seventh month, and not as in the male subject from the third to the fifth. From this it results, that whereas one-half the male recoveries are established by the fifth month, nearly seven months elapse ere a proportionate number of females recover. The second abrupt rise of eleven cases, and as sudden a fall shown at the tenth month in the female chart, I'eproduces in a modified form the sustained recovery-rate shown between the sixth and ninth months in male adolescents. From such a chart we might augur that the chances of recovery, apart from any specially-favourable points inherent in the case, are equally good between the fourth and seventh months from onset; that if from some unfavourable element in the nature of the case recovery does not then take place, a further hope may be enter- tained of recovery at the tenth month, beyond which the chances are greatly reduced ; and, also, that if a male adolescent is not included in the favoux'able list of cures up to the fifth month, we may still hope on with reasonable expectation of recovery to the ninth month, beyond which the case must be regarded as assuming a serious character, and the outlook is certainly ominous. Not only are the cases prior to the age of twenty-one more often * It must be remembered that the period dealt with in these cliarts is that bc- tM'cen actual onset of Insanity and recovery. t The period of recoverability may be arbitrarily fixed at twelve months from the onset of the insanity ; the few recoveries subsequent to this date not militating strongly against the utility of this doctrine. 3G4 IXSAXITY OF PUBERTY AND ADOLESCENCE. characterised by excitement, but the type of insanity then prevalent is distinctly a more recoverable form ; the recoveries in the earlier con- trasting with those in the later period, as ninety-one to seventy-one. In other words, if we group together the partial recoveries, the f\xtal cases, and the chronic remnant as the unfavourable class, we shall find that such a class constitutes 31 per cent, of the acute forms of insanity, and 49 per cent, of the melancholic forms; in fact, the chronic cases are double, and the partial recoveries (" relieved ") more than double in the melancholic, that which obtains in the maniacal forms. Treatment. — The simpler forms of hysteric excitement occurring at this jieriod often do not call for other than moral and dietetic measures; removal from the home circle and possible sources of irritation to entirely-novel relationships, the administration of a due amount of aliment, regular habits of life, and means to ensure sleep will often suffice to eflfect a cure. Nourishment should be given in an easily- assimilable form, its nature dictated by our knowledge of the systemic wants at this developmental phase of the patient's life. The secretory and excretory organs should be especially attended to, liable as they are at these periods to derangement and sluggish action. Sleep should be secured by out-door exercise, active employment, commensurate with the patient's powers of endurance within the limits of absolute fatigue; sedatives should be studiously avoided. It is only when pro- longed insomnia persists for several nights together, in spite of the abov-e measures, that sedatives are admissible, and then a single dose of chloral, sufficiently large to ensure absolutely the desired amount of rest, may be given; its frequent administration for this purpose is to be strongly dejjrecated. In such cases as inherit a strongly-neurotic temperament, and in which the cycle of developmental change has not resulted in much physical over-strain and wear and tear, large doses of potassium bromide (30 to 60 grains three times daily) may be admin- istered with decided benefit so long as a due amount of wholesome food can be taken. Most often we have to deal with the menstrual irregularities of this epoch and its attendant anaemia, our subject having succumbed to the developmental wave; the nutritive and assimilative capacities having been overtaxed by the exaggerated de- mands of the gi'owing organism. Here a strictly-hygienic regimen should be carefully and persistently enforced, such as out-door exercise and the spinal douche or sponge-bath. Iron, especially the carbonate, should be given in pill or mixture. It is well to vaiy the form of iron, occasionally administering it in the form of iron-and-alocs pill; or as the ammonio-citrate; or as the sulphate of iron in combination with extract of nux vomica and rhubarb in pill; or again as the com- pound syrup of the phosphates with malt-extract and cod-liver oil. CHART of RECOVERIES m FEMALES. PUBERTY & ADOLESCENCE. Chart B 11" ^ 1 \ / \ t \ Rmv' R 1 1 /\ 733% 1 [ 1 \ f i \ \«l 1 \ \r 1 \ J J \ V!S 1 ^^s. ,„ Duratinn of Attack 4ll! 6» .?« 3 ♦ 5 6 7 a 9 10 II 12 13 14- 15 20 2y 3y iy. 6/ CHART of RECOVERIES in MALES. J PUBERTY & ADOLESCENCE 1 ' /< j 1 i f / ij. S" A / ^. A' / / / ,, I \ J [ A \. -A! \. Recov' Relieved Died Remaininj 162 40 27 48 584% I44°i 9-7!. 17 3% IUrationilfAttacl(.4iv 6w 2/» 3 4 5 6 7 8 9 10 II 12 13 14 15 20 2y 3y SYMPTOMS OP PUERPERAL INSANITY. 365 INSANITY AT THE PUERPERAL PERIOD. Contents. — Symptoms — Predominance of Mania — Intensity of the Morbid Process- Obtrusive Sexual Element — Hallucinations — Delusions of Suspicion — Prevalence of Suicidal Feelinj^s — Etiology — Susceptibility of the Puerperal Period — Illegiti- macy and Puerperal Insanity — Frequency in Primiparae — Condition of the Blood — Diminution of Hajmoglobin — Prognosis — Treatment — Insanity of Pregnancy — Relatively Infrequent — Primiparfe show uo S^jecial Liability — Symptoms — Recoveries. Symptoms. — The onset may be absolutely sudden, following upon delivery ; but more frequently the development is gradual, being pre- ceded by evidence of nervous exhaustion, until the fully-matured disease bursts out in all its fury at the end of the first week succeeding labour. The patient suffers from early insomnia, becomes restless, fidgetty, unnaturally gai'rulous ; she exhibits a waywardness not customary, takes strange and unreasonable dislikes, especially towards her husband, or refuses to have her infant brought to her. There is a furtiveness of glance auguring a suspicious state of mind, a startled look on the slightest sound, or even intolerance of light. All her relatives observe a change of disposition, and perhaps attribute it to a wilful temper merely, but the pulse becomes hurried and small, the face pale and haggard, the eye startlingly bright. She cannot be in- duced to sleep, or sleep is broken by distui'bing dreams, from which she starts up in bed rambling in disconnected utterances. Then come hysteric outbursts, extravagant conduct, and all the features of an acute maniacal attack. The presence of delusions and hallucinations declare themselves, she shouts aloud to imaginary persons, listens to their voices, rejects her food with repugnance, declaring it to be poisoned. Maniacal excitement usually characterises these outbursts ; out of 68 puerperal cases as many as 45 or 66 per cent, suffered from mania, whilst states of depression prevailed in 23 patients or 33-8 per cent. If we associate with these the cases which, originally puerperal, had been allowed to suckle their infants for some time after symptoms of mental alienation had been observed, we get from a total of 111 as many as 74 or 66 per cent, as subjects of mania, and nearly the same proportion, 30 per cent., as subjects of melancholia. The mental afiection, then, at this stage is essentially an acute maniacal state, in which there is intense excitement, great incoherence, continuous garrulity, and a dangerous explosiveness, which may issue in most desperate impulsive conduct; there is, moreover, a special pi-o- clivity to indulgence in obscene language, indecent exposures of the person, and genuine nymphomaniacal states ; or the deep-rooted erotic 366 INSANITY AT THE PUERPERAL PERIOU. feelings may, partially controlled, reveal themselves in the sudden gestures, or sensiial glances, or prurient demeanour in a less obtrusive manner. There is, despite the adverse view of high authorities upon this point [Gooch, Marce, Fuville), abundant evidence in support of the view that this sexual element stamps the insanity of parturition and the early i)nerperal period with features whicli demand special attention ; but whether such features should exalt the mental affection into a dis- tinct nosological entity is very doubtful, and, in our opinion, unjusti- fiable from considerations already appealed to.* Hallucinations. — Visual and aural hallucinations, or both com- bined, occur to the almost complete exclusion of other forms of sensory disturbance ; in fact, 17 per cent, of our puerperal cases exhibit such anomalies — the average for the total admissions in all forms of insanity being 29 per cent. This is not so high an estimate as that of Dr. Clouston, who also assumes the aural to be the more frequent; in our experience they occur in about equal frequency.! Delusions. — Quite 63-2 per cent, showed obvious delusions of very varied chai-acter, but chiefly tending towards ideas of persecution, the patient believing herself the victim of intrigues at the hands of her nearest relatives — her husband, children, her former friends and neigh- bours ; her life, or that of her children, is threatened, or some terrible tragedy is being enacted ; in two cases, the house was believed to be haunted. Ideas of poisoning are prominent featui'es, the food being frequently rejected upon this plea. Another not infrequent delusion was that of a sexual nature ; the husband's fidelity was called in question, or there were ideas that men entered her bedroom at night for illicit purposes ; one patient believed herself to have been confined of twins who were falling into a canal. In five cases the subject believed herself eternally lost, forsaken by God, and given up to the machinations of the evil one. This delusion that the soul is lost was as fi-equent as in forms of insanity of a more melancholic type, occurring later on during lactation ; in fact, religioiis delusions were frequent. Hypochondriacal delusions were not observed in a single case. To take a brief summary of some of the more important hallu- cinations betrayed by puerperal cases : — Faces besmeared with blood peep through tlie windows ; spirits hover around ; angels and devils surround the bed ; the patient's deceased mother confronts her, and mysterious lights flit about the room ; voices are heard ; the form of the evil one appears ; or they shout aloud to imaginary voices ; sounds are heard, interpreted as conspirators beneath the building ; or a voice within prompts her to suicide. * See also on this point Dr. Sankey's Lectures on Insanity, pp. 128, 195. t Vide Lectures on Mental Disease, p. 507. DELUSIONS OF SUSPICION — SUICIDE — ETIOLOOY. 367 From tlicsc considerations it will be obvious that the general tone of feeling is that of distPUSt and suspicion, implicating her conjugal relationsliips, her friends, and former associates, or as affecting her moral well-being ; or utter failure of self-confidence and delusions, sometimes of a most harrowing description, based thereupon. Suicide. — We have alluded to the explosiveneSS of the disease, and the tendency to impulsive acts is a most notable feature in insanity at this period. Attempts to murder the offspring have been frequently recorded, and no woman suffering from this form of insanity should be brought into close i-elationship with her children. About 25 per cent, presented active suicidal propensities ; but nearly double this proportion, or 47 per cent., were impulsively dangerous to those around them. The suicidal impulse was often prompted by delusion ; thus, one patient believed her husband wished to cut her throat, and, consequently, sprung from her bedroom window. Another leapt from her window under the impression that her husband had just murdered his two children, and under similar impi-essions. One case tries to end her days by a desperate attempt at strangulation, and another by cutting her throat. The various forms of mental disturbance found at this period may be thus classified in the order of their frequency of occurrence : — Acute mania, .... 31 cases Melancholia, with delusions, . 13 „ Mania, with delusions, . 7 ,, Simple mania, 7 ,, Simple melancholia, 8 „ Acute melancholia. 1 ,, Melancholy with stupor, 1 „ 68 ,, EtiolOg'y. — It would be indeed strange if, at a peiiod embracing such revolutionary changes as are comprised in the onset of labour and the first half of uterine involution,* the mental stability was not endangered beyond the average usual at the same period of life in the non-parturient. So numerous are the novel relationships into which the nervous system then enters, and so powerful are the new agencies brought to bear as excitants to morbid reaction, that subjects hei'editarily predisposed to insanity, must necessarily incur imminent risks at this crisis of their histoiy. As Burrows says : — " Gestation itself is a source of excitation in most women, and sometimes provokes * The term "puerperal mania" is arbitrarily assigned to the mental derange- ment occurring during the first six weeks of the jnierperal state ; involution of the uterus being usually not complete for three months. 368 INSANITY AT THE PUKUPKKAL PEUIOIx mental derangement, and more especially in those with a hereditary predisposition.""* Let us consider what are the peculiar circumstances which favour such issues. First, there is the mental transformation incident to this latter period of gestation ; the arousal of maternal instincts, especially for the first time, is frequently associated with unstable states of nerve-centres, issuing in introspective states, exalted self- feeling, voluminous emotional waves, vague fears of impending troubles, and often hysteric outbursts. Such conditions must be attributed to the eccentric irritation of the gravid uterus, as well as to the deteriorated state to which the maternal blood has succumbed ; and, unless the depurative processes become more active, nutritional anomalies are liable to arise, producing undue nervous instability during gestation and subsequent to parturition. If the functions of secretion and excretion be checked, as by loaded bowels, or the accumulation of morbid products in the blood, a source of irritation to the nervous system at once appears ; and, if albuminuria coexist, the urcemic state of the blood may tend towards actual convulsion.! Then come the physical and moral shock of labour, the emotional tension, and recoil of this crisis ; and, lastly, the immediate and more remote consequences (local and general) of parturition. The physical and moral shock is ever a varying quantity ; but, in all cases, nervous exhaustion is always attendant on such an enormous outlay as is demanded during parturition, especially in those constitutionally enfeebled, reduced by the ailments of the later stages of gestation, by insomnia, or by a tedious protracted labour, or attendant haemorrhage. The moral shock is regarded as an all- powerful excitant to mental ailments of this period, as illustrated in cases of illegitimacy ; and authorities have constantly drawn attention to the prevalence of puerperal insanity amongst those who have borne illegitimate offspring. "Esquirol speaks of a sort of frenzy incident to unfortunate girls in giving birth, in misery and secrecy, to bastard children ; a condition of mind, which it is to be feared, often prompts either infanticide or suicide." | Again, subsequent to labour, we have the whole uterine surface exposing the system to the perils of haemorrhage by imperfect contraction, to retention of excretory products, to the absorption of septic agencies, metritis, phlebitis, and its attendant evils. Later, still, come the evils due to imperfect depui'ative processes, requisite ■* Commentaries, p. 3G3. t The urajmic element in the causation of puerperal eclampsia lias been called in question ; see, however, the very apposite i-emarks by Dr. Gowers in his Biicases of the Nervotis System, vol. ii., p. 71C. i Burrows' Commentaries, p. 3C4. PUERPERAL INSANITY AND ILLEGITIMACY'. 3G9 fov the removal of adventitious products during the slow involution of the uterine muscle ; the fatty disintegration of the giant-fibre, and its replacement by the nucleated fibre-cell, which prevailed in the nulliparous state. The products of such disintegi-ation found copiously in the lochia, and probably as the fatty elements in the ui-ine, and caseous elements of the early mammary secretion, will, if these secretory and excretory functions be arrested, lead up to the evils now alluded to. In fact, the whole puerperal period is one of extPeme susceptibility.* The explosive condition of the nerve centres is at its height during parturition, and it is then, especially, that eccentric irritation of the cerebrum may lead to transient psychical anomalies, or to the motor discharges of general eclampsia convulsions ; and it seems but a question of individual susceptibility, or intensity of the eccentric irritation, which determines the one or the other, the psychical often preceding the convulsive phenomena. Thus, at the acme of a supreme uterine effort, and especially during the passage of the head, if large, in excitable primiparse, the intensity of the pain is often accompanied by complete, though transient, alienation, by grave reductions in consciousness, by rambling inco- herent talk, by outrageous and impulsive actions — the new-born infant may be sacrificed to the mother's frenzy, f Illeg'itimacy. — I have already drawn attention to Esquirol's state- ment of the prevalence of insanity amongst those who have been illegitimate children; it has also been shown by Dr. Clouston that this cause is a potent factor in Scotland — where illegitimacy abounds. He estimates that 25 per cent, of his cases occurred where the offspring were illegitimate. When we take our English asylums into considera- tion, the results are far different; illegitimacy is far less rife; and it appears that out of a total of sixty-six cases sixty-one were married, and the children l^orn in legitimate wedlock, whilst in seven only were the patients unmarried women. Now the proportion of single to married patients in the total admissions of 1,810 cases was 35 per cent, to 50 per cent, respectively ; hence the proportion of 10 per cent, of single women who sufiered from puerperal insanity is exceptionally low. Frequent in Primiparae. — Frequent child-bearing has apparently no connection with the development of insanity; of the sixty-eight puerperal cases, twenty-two were first confinements, or a percentage of 32'3; 20*5 per cent, had had two children ; 10 per cent, and 14 per cent, respectively had had three and four children; and of those who had fami- lies ranging between five and nine, 22 per cent, were also represented. * Burrows, op. cit., p. 3GG. t There is, likewise, a temjiorary delirium sometimes accompanying difficult labours, in the fever on the secretion of milk, or the inflammation of the breasts. Burrows, lb., p. 364. 2i 370 INSANITY AT THE PUERPERAL PERIOD. Second attacks occurred in eight cases, of whom two were primiparae and the remaining six had families ranging from two to nine. No case liad suffered from a third seizure. The Blood in Puerperal Insanity.— Tested by the ha?moglobino- motcr the amount of lufinoglobiu was found below the normal, as indicated by the series of observations recorded in the following table : — In the case of R. W. J. it amounted to but 55 per cent., and in C. C. to 60 per cent, of the standard of healthy blood ; in two other cases it varied between 74 per cent, and 78 per cent. The first case or the tabulated series {M. A. M.) in which profound ansemia had resulted from post-j-)artum, haemorrhage, gave upon one occasion as low a per- centage as 20, rising subsequently to 32 per cent. The corpuscular richness (numerical) in the uncomplicated cases came near that of normal blood,* being 80-6 to 124 per hsemic unit — i.e., from 4,030,000 up to 6,200,000 corpuscles per cubic millimetre ; but, the corpuscular value estimated in hsemoglobin was invariably low — the lowest register being 44 in the case of R. W. J., the other three subjects giving -75, -76, and "79 respectively of the normal value. In the case of J/. A. J/., however, the numerical corpuscular richness, commencing at 2,680,000, fell to 2,040,000, and eventually rose to 3i million corpuscles per millimetre cube ; the corpuscular value at one time but -35 rose to -68 and subsequently fell to -60 and even '45 — the latter coincident with a wild maniacal outburst. Amouxt of H^moglobix IX THE Blood in THE SUB-TECTS OF PuERPERAL LvSANITY. d o c |l 0-" O o o IS 5 c o 2 s B c< ^0 Bemases. M. A. M., (Oct. 1, '87), (Oct. 4, '87), (Oct. 8, '87), (Nov. 6, '87), M. A. P., (Nov. 15, '87), H. S. L., . (Nov. 2, '87), C. C, . . (Dec. 2, '87), R. W. J., (Aug. 10, '89), 20 28 24 32 74 78 60 55 53-6 41-4 40-8 71-6 93-6 102-8 80-6 124 •25 •06 •12 •16 •28 •22 •24 •IS •35 •68 •60 •45 •79 •70 •75 •44 Extreme waxy pallor: blood rert/pa'e, watery, and instantly separates into serum on withdrawal; "contains many minute cells like nuclei and ill-formed corpuscles. Minute fat jrlobules in the blood and many ill-formed corpuscles. Still many minute nuclear bodies; blood pale but has more consistence. Red discs all contain minute glistening nuclear bodies; some tend to form dumb- bell shapes and readily split up. iVild excitement for some davf past. Profound melancholia; waxy pallor of face; compulsory feeding requisite. Many minute corpuscles in the blood, some of dumb-bell form; larger corpuscles mea- sure C to S^i; smaller measure Su. Considerable torpor of movement; much stupor but no cataleptic phenomena; pupils dilateii ; betrays but slight antcmia. Medium size corpuscles (5/^): a few small nuclei ('2 /j.) ; white corpuscles measure S^i.. * Assuming normal blood to be correctly computed at 5,000,000 per cubic millimetre. PROGNOSIS — PROTRACTED RECOVERIES. 371 Prog'nosis. — Of the seventy cases, fully fifty-six completely re- covered at the asylum, whilst four others were discharged "relieved" — hence the recovery-rate reached the favourable pei'centage of 80. The mortality was 8*5 per cent, of the whole sixty-eight cases — i.e., six died. On the other hand, four patients (5-7 per cent.) still remain in the asylum as chronic incurable cases of several years' standing. On- consulting the recovery-chart it is observed that, up to the second month, but nine cases recover ; thence, up to the sixth month, the recovei-ies rise gradually to an aggregate of thirty-seven; during the following two months, but five cases recover; at the ninth month there is a sudden rise in the recoveries, from which period, up to two years- and a-half, a few casual recoveries are still noted. The recovery-rate does not, therefore, contrast so favoui-ably as appears in Dr. Clouston's statistics, in which it is stated that in three months over half had recovered, and in nine months 90 per cent, were well. Our own results show that rather more than one-half of the recoveries occurred by the fifth month, and an advance of the number of recoveries to forty-four by the end of the sixth month; whilst, as in Dr. Clouston's cases, 87-5 per cent, had recovered by the ninth month from the commencement of their insanity. The incalculable advantage of early treatment is very obvious in the recovery-list; since of four-and-twenty who were placed in the asylum within one week of the onset of their insanity, as many as thirteen were recovered within three months, and the remaining eleven left recovered within five months, and this despite the fact that several of these patients had inherited strong neurotic tendencies; thus, the family records of these twenty-four (early) recoveries testify to the- following facts : — Mother paralysed, ..... Brother insane, . . . . . Mother insane, . . . . "j Sister insane ; father a heavy drinker, / Sister insane, ...... Grandfather insane and committed suicide, . Father insane, ...... Father and mother insane (second attack), Aunt and two cousins insane (second attack), Aunt insane, ....... Even direct inheritance does not, therefore, seem so sti'ongly to aflect the recovery-rate in such cases when placed at an early date undei- suitable treatment. Let us now turn from the favourable cases to those in which recovery was protracted to six months and later. It becomes a significant fact that these are cases where asylum treatment has beea Recovery ill 2^ months 5 5i 2 1 4| OJ. 4 372 INSANITY AT THE PUKUPKHAL PERIOD. deferred, and the patient kept under their friends' supervision for a period ranging from two weeks to several months. Case. Onset prior to Asylum '1 reatincnt. 1 4 wenks . 2 „ (brotlie 4 3 M 5 4 ,, . G 3 „ . . / 9 S 6 months 9 7 !) 10 •7 11 3 „ 12 3 „ 13 2 14 3 weeks . 15 2 ,, . . 16 3 months 17 2 ,, IS ? 19 7 weeks . 20 7 ,, . . 21 9 ,, (paterL 22 . 2 „ ( „ 23 4 months 24 ■ 1 „ 25 . 25 ,, Recovered. Age. 7 months 26 7 1, 36 ' 1) 22 7i „ 25 9 24 9 24 25 94 „ 48 9 38 9 21 10 „ 24 11 „ 27 Hi „ 25 !•- 29 i3i „ 22 1-1 „ 27 2 J'ears 27 -a )) 24 Gj months 25 . H „ 22 ty) H „ 26 ) 6i „ 28 G 28 6 24 Oi „ 25 Equally instructive is it to note, that the failures amongst those who were but partially relieved and so discharged, or who remained, as chronic insane, or who succumbed to a fatal malady were, with very few exceptions, either late admissions or over thirty years of age. A glance at the following three tables illustrates this point in a very forcible manner : — MOKTAUTV. Date and Cause of Death, in 11 montlis; of tubercle, in 6| years ; of phthisis, in 14 years ; of general paralysis, in 1 month ; of pneumonia, in 3 months ; of phthisis, in 2 years 7 months; of general paralysis, in 1 month; of pelvic cellulitis, in 2 weeks; of chronic brain atrophy, in 1 week ; of pulmonary congestion, in 4 months; of acute cercbritis (father and mother insane). 10 days, . . 22 . in 4 years ; of phthisis. Duration of Attack on Admission. Age of Patient. 3 months, 27 3 „ 38 Several months. 42 7 months, 40 1 21 11 „ 28 1 week, 30 1 ,. 36 1 » 40 1 „ 35 PROGNOSTIC INDICATIONS — TREATMENT. 3/3 Discharged "Relieved." urntion of Attac Ic Age of on Admission. Patient. Date of Discharge. 2 weeks, 30 2 years. 3 months, 29 6 months. 5 weeks. 39 2 years and 4 months. 7 months, . 38 2 months (father and brother insane). Sevei-al months, . 32 84 months. Remaining 'Chronic Insane." 8 weeks, 34 7 years ; still an inmate. 6 „ 26 7 ,, ,, strong heredity 8 months, 39 1 year and 8 mouths. 1 week, 30 4 years. 1 „ 28 5 „ In conclusion, tlien. it may be stated that the insanity occurring at the puerperal period is one of most acuts character, yet most faVOUP- ablG as regards the ultimate issue of treatment. The prognosis will be influenced more especially by — (a.) Duration of the symptoms when the patient is brought under treatment, and (b.) Largely by the age of the patient. If the patient be under thirty, and judicious treatment be employed within a week of the onset, the prognosis is favourable; every day's delay after this adds to the ultimate risk. If the patient be over thirty years of age, and, more especially, if the treatment has been delayed for two weeks or longer, then the recovery if ensured will pi-obably be prolonged, yet the risks of i^artial recovery only will be strengthened. Treatment. — Our first enquiries should be directed towards the genito-urinary system, with the object of discovering any local uterine mischief, whether tenderness upon palpation, a rising temperature, a history of arrested or foetid lochia, indicate lurking troubles consequent upon labour.- The most careful examination should be made with the object of ascertaining any source of peripheral excitation which may be removable or palliated. A slight pyrexial movement will generally be found in the acute maniacal attacks following immediately upon partu- rition. It is always advisable to begin our treatment with a saline aperient, and secure a free evacuation of the bowel; the condition of the breasts may also merit attention. A bland but nutritive and fluid or semi-fluid food (including milk, beef-tea, broths, and eggs) should then be given at very regular intervals — forcible feeding being resorted to should the exigencies of the case demand it, and, in fact, this is usually the rule. The condition of the blood would appear to indicate tjie 374 INSANITY AT THE GESTATION PERIOD. administration of iron; but, in all these cases of acute excitement, it is well not to give chalybeate preparations until a much later date in the history of the case ; at all events, not until the patient takes food spon- taneously and sleeps fairly well, without having recourse to sedatives. The form of sedative and soporific is of importance ; bromide salts are of less avail singly than in combination with chloral. The latter is the better drug to rely on in obstinate insomnia. Paraldehyd has been given with considerable success, and is certainly more ethcacious than sulphonal ; Itut, of the three, we give the preference to chloral. Later on, with abatement of maniacal symptoms, it will be well to administer phosphatic foods, the syrup of the phosphates, or a mixture of the ammonio-citrate of iron along with malt extract. In later stages, the question of uterine involution is one of much moment — undoubtedly a defective involution has much to do with the persistent excitement of these cases. Here Easton's syrup, the liquor strychnife, or tincture of nux vomica, may be of avail ; or the chloride of ammonium may be given with advantage. Early association with the insane should be avoided, as likely to increase the irritative process going on. The subject should be kept at first confined to her bed, attended by a nurse, and only when the maniacal excitement is somewhat abated should she be taken into the ■open air for short walks, or allowed to associate with others similarly deranged. Warm baths may be utilised with advantage dviring the progress of the case, and by their aid it is possible to ensure sleep in many cases without resorting to the employment of sedatives. Insanity of Ppeg"nancy. — Insanity during the period of gestation is i^emarkable for the infrequency of its occurrence ; upon this point all authorities are agreed. Our statistics in lai-ge pauper-asylums ■certainly corroborate this statement, and, when we deduct the cases admitted subsequent to confinement, but whose mental ailment de- finitely dates from a period prior to pai'tui'ition and only estimate those who were enceinte on admission, we reduce the numbers so far that they are of little or no value for statistical purposes. Eleven cases of insanity occurring dux'ing gestation were admitted amongst a total of 1,814 female admissions, or the very low proportion of 0"6 per cent. ; hence our experience with respect to insanity at this physiological cycle is indeed greatly restricted. So great is the repug- nance to the admission of such cases, and very naturally so, that undoubtedly many subjects escape asylum supervision, and are nursed through transient attacks of alienation under the guardianship of their friends at home ; and, on the other hand, so frequent are the trifling mental ailments of the earlier mouths of ])regnancy — the juorbid cravings, the emotional and moral perversions — that they are SYMPTOMS — COURSE AND TERMINATION. 375 regardetl with little concern ; whilst a more serious mental ailment may be excused as but an exaggerated expression of the same states. Our very limited experience at the West E,iding Asylum would indi- cate that insanity at this period is by no means more prevalent amongst jrrimiparce, for nine of the eleven cases had previously borne children, and in none of these cases had the patient suffered from a previous attack of insanity. Cases have been recorded where every confinement has been preceded by mental disturbance amounting to genuine in- sanity ; but it is much moi'e usual to find such frequent recurrence as the sequel to successive parturitions, than in the pregnant periods of a woman's life. There is usually a period of mild depression for some time observed ere the more acute outbreak of symptoms ; nervous timidity is a frequent accompaniment ; the patient loses confidence in herself, and di'eads that some imaginary evil is about to befall her; she becomes suspicious, and often exhibits want of confidence in her husband and i-elatives. All the cases which required removal to the asylum were fully-developed forms of the disease, and, without exception, were instances of acute maniacal excitement ; they were not associated with expansive emotional states, but the reverse. Distrust, timidity were apparent in all ; and, at times, terror induced by acute hallucinations culminated in frequent frenzied excitement and the wildest conduct. Periods of sullen reserve would alternate with sudden outbursts of mania ; and the subject was usually watchful, intensely suspicious, and suddenly aggressive. There was in most of the cases a special danger of suicidal acts, attempted usually under the influence of some terrible delusion ; as in the case of one patient who believed herself seized by Satan, and who made frantic efibrts to leap through a window. The excitement is accompanied by great incoherence ; but their ramblings usually betray the dominant feelings in frequent reference to blood- shed, murder, treachery, or the like. The most persistent insomnia often prevails, and destructive tendencies are at first obvious. Later on the patient may have alternations of depression and mild excite- ment ; in which she is flighty, meddlesome, treacherous, and prone to vicious conduct. The larger proportion of cases occurred heyond the third month of gestation, and two cases alone left the asylum recovered before their confinement. The proportion of " recoveries " amounted to 54*5 per cent., whilst two others left, after a prolonged residence, sufiiciently relieved for home treatment ; two, however, died — one from puerperal fever, and the other of chronic plithisis. With respect to the origin of the mental derangement we can pre- dicate but little from the scanty figures at our disposal and the history 376 INSANITY AT THE PKRIOD OF LACTATION. of tLe few instances afforded us. It was ascertained, however, that strong hereditary jn'edisposition prevailed in 3G per cent. ; that two other cases subsequently died of general paralysis ; and that three others, although afibrding no history of ancestral insanity, were considered to be of comjenitally-defective mental organisation. INSANITY AT THE PERIOD OF LACTATION. Contents. — Eisks Attendant ni>on Lactation — Period of Uterine Invohition — Period of Mammai-y Excitation — Symjitoms — Depressing Uehisions — Impulsive Nature (M. W.) — Suicide (M. D.) — Case of E. E. C. — Intensity of Maniacal Excitement — Sexual Perversions — Hallucinations — Etiology — Exhaustion and the Se(iuela; of Labour — Protracted Uterine Involution — Lactation during Profound Anaemia — Hyperlactation — Qualilications of the Nursing Mother — Period for Weaning — Prognosis — Treatment. To a certain proportion of the puerperal, the whole period of lacta- tion is one fraught with risks. The period is one of acknowledged susceptibility, and when conjoined to this normal exaltation "we have the predisposition engendered by ancestral insanity, the acquired elements evolved out of vicious modes of life, and inattention to the plainest physiological dicta, the moi'bid impetus towards insanity is greatly strengthened. Undoubtedly, the factors peculiar to this period of lactation, to which are attributable in part the mental reductions, vary with the physiological changes incident to this period. Thus, in the earlier period of lactation, the immediate effects of gestation and parturition, or the changes normally aroused in the uterus on the completion of labour, are of paramount importance in our estimate of the origin of the mental ailment ; and so, throughout the period of uterine involution, the reflex irritation from the ovario-uterine ap- paratus is of primary importance. As, however, uterine involution becomes complete, so the activity of the mammary secretion assumes an increasing importance in its effects upon the economy ; in lieu of reflex excitations from the uterine surface, or of the faults arising from defective depuration, the nutrition of the nerve-centres becomes more directly involved. To attempt, however, to distinguish betwixt the insanity incident to these periods as distinct nosological entities would be highly inconsistent, and not justified by .a scientific estimate of the relative value of symptomatic indications. The insanity of the partiirient and early puerperal stage imperceptibly glides into that which characterises the later stages of lactation ; and none but an arbitrary division can be assigned (for convenience in study) as the termination of uterine involution. Then, again, the completion of involution is an uncertain PREDOMINANCE OF MANIA -WITn DELUSIONS. 377 poriod, vai-ionsly assigned by diflcrcnt authorities. One month is given as the term in healthy subjects, under good hygienic sur- roundings ; six weeks is the accepted time in continental Lying-in Hospitals {Barnes'*) ; whilst Tylor Smithf quotes tioo or even three months as the probable period. We may, however, accept six weeks after parturition as the period when the uterus and ovaries are passing into the quiescent stage, during which lactation assumes its own important rule. It is highly essential that we should clearly recognise this overlapping of physiological stages, as thereby are explained certain exceptional cases which occur about the transition-period here alluded to. Symptoms. — The prevailing condition at this period is, in fact, that of an acute j)sychosis, in which excitement predominates, and in which terrifying hallucinations (visual and aural, or combinations of these) lead-up to various delusional notions, and in which suspicion of friends, relatives, and neighbours is prominent; fears of supernatural agency are not infrequent, strange phantasms haunt the eye, mysterious whisperings, unexplained sounds, or more definite A^oices issue in the moi'bid imagery of angels or ministers of darkness. The loss of self- confidence begets the frequent notion that the "soul is lost," or that all future good is sacrificed by some imagined crimes committed. The moral being has its ultimate foundations shaken, and confidence is lost even in those who should be nearest and dearest to the afilicted one; the husband's fidelity is openly challenged; intrigues of acquaintances dreaded; the food declared to be poisoned. The 0nS6t may be sudden; it is far more frequently preceded by mild depression. The patient becomes restless, irritable, variable in mood, suspicious of her friends, impatient and fretful; she is apt to misinterpret the conduct, gestures, and words of others. Then come fitful outbursts of anger, extravagant accusations, or actual violence, and the onset of genuine maniacal symptoms. Insomnia usually prevails; noisy, boisterous, incoherent ramblings ensue, in which the patient gives utterance to fragmentary sentences from which we glean the condition of mind to be one of distrust, suspicion, or terror, or to be dominated by aural hallucinations. Tlie delusional notions vary from time to time, and periods of exaltation alternate with mental })ain, rising even to the pitch of acute melancholia. Such subjects usually come under our notice in asylums, looking exceedingly pallid from anpemia, reduced, thin, and jaded from continued sleeplessness and excitement. In this stage of excitement they are often dangerously impulsive, and require most careful * Diseases of Women, p. 469. + Manual of Ohdetrics, p. 92. 378 INSANITY AT THE PERIOD OF LACTATION. watching. Thus, one of oiu' patients, wlio had suckled her infant up to the twelfth month, althou;rh much enfeebled in health, became suddenly maniacal at home; she struck her husband on the head with a poker, ran a darning-needle into his side, and eventually got possession of a knife at night and gashed his throat ere she could be secured. M. W., aged thirty-nine, married, and the mother of three cliildren. Patient in- herited insanity from the mother, who was an inmate of this asylum twenty years ago after confinement. The patient was confined twelve months prior to admission, and had brought the infant up at the breast until four months since, when depres- sion first supervened : her health began to fail, restlessness, low spirits, suici o CO 03 1 ITS OO : ^ ^ CI CI CO CO C3 OO ; c> th o 1 a:i 1 1 — CO Tt< o C3 CO CO CO IC3 1 1 t^ O CO •* CO CO CI CO CD r — 1 LO CO o o o LO CI 1 t^ CI CO CO CI o iri CO 1 <=> CO o t^ -+ i-l CD CI s CO CO , C3 ' CO 1 to in CI CI CI CJ —■ Cl CO in iri lO 1 C3 lO o CI CO CJ CO CO 00 1— 1 CO CI C3 1 ITS CO CO CI CO rri Ol CO o CO CI to 1 CD -H CI '^ O rt i-( CI CO CI CO CI CO 1 to CO O CO -* CO O i-H C4 CO lO CO CO CO to CO 1 CD CO t-~ ^ ^ r-H CO rt <-H 1 — 1 o OD I— 1 Ci CO CD T to CM LO —( Ol CO lO CO CO —I CI CO o CI CO LO 0-) 1 CD CM -* CO 1— 1 CO CO CN 1 - 1 CI . CI 1— ( LO CO to K' — VO CI : : lO CI CI CO CI co" .5 ^ r g v; <^ !> O rt IS 1 O 1- — ( •o o lo CO cs. CI CO o : CO : - 1 LO C33 CO 85-90. 90-95. LO C5 CO to OO CD OO : : c^i Cl JO 1^ CD OO LO r — f* -* o >c CO CO !>. CO lO r-~ 1 CO O CO c» CI CO o CO CD r^ 1 tCi CO OD O CI CI d CI o lO CO ^ C3 c^ 1— ( Tfl CO CI C5 LO CO CO CD CO in in LO -H CI >-( CO Tjl ^ s lO CI c:3 IS 1 CD to CO t- C5 CI «) CO C5 CI CJ lO CJ CD LO LCD t^ t^ CO CI O CJ o LO CO s CJ CI CO Ci LO CO ■* CO d o C4 o CO lO CO CD "* 1 to CO CI -* t^ l^ CO i-H CO CI CI CO CO !>• CO CO tri CO 1 CO CO C5 LO f-H CI -* r-( LO to CI CO o CO CO .-( lO o r-H 1— 1 CI CO CI CO d lO CO lO LO Cvl 1 CO CM ■* o CO TT c? CO lO CO CO CSI 1 IC3 CO : CO CO C) C5 CI CO o . : o Oi CI CI LO CI CI CO 00 ."(Up: oT To "S ^ i .5 J3 > 3 X r^ :> u 398 IXSAKITY AT THE CLIMACTERIC EPOCH. SO also cases of epilepsy, imbecility, and organic brain affections, where the climacteric was .but the spark to the fulminate. This rigid exclusion of dubious cases left but a meagre residue of eighty out of 1,808 cases, or a percentage of 44 upon the total admissions. The astonishing disparity in estimates upon this point by different writers is seen in the following table : — Classed as Climacteric Insanity. ■n^-A-^ Ti„.,^«ii Skae'a Edin- Clouston's Edin- ,.,„„„„.„ Trr^of Bevan Lewis' EeidsHanw5ll burgh Eoyal bur?h Royal Merson s West WestBidiDg Statistics of ,03 Tilt s Statistics. A.vluni. Asylum, Kidmg Asylum, Asvlum, Cases of Insamty. 5o8 Cases. 1,549 Cases. I,0o4 Cases. i^gOS Cases. 1-1% 3 to 4% 11-1 7o 12-6% 14 to 15% 4-4% Obviously from the above the discrepancy must be involved in the personal equation ; in fact, in the want of unanimity of opinion as to what really constitutes the criterion of a so-called case of climacteric insanity. It will be observed that our estimate (founded upon personal observation) closely agrees with that of Dr. Tilt, and we differ, there- fore, in regarding his results as an under-estimate ; * at the same time we glean from Dr. Merson's able paper f the real cause of such dis- crepancy. He there states in reference to his percentage of 15 that: — "It by no means follows that in all these cases the climacteric condition was the only, or even tlie chief, element in the causation of the mental disorder, though it may be affirmed that in most cases it exercised a causative or modifying influence more or less marked. The history of the cases investigated points to the conclusion that the change of life is not often of itself the immediate cause of insanity.'' The same writer then proceeds to particularise 76 out of his 149 cases as influenced by other exciting agencies, giving amongst such some 31 cases of organic brain disease, cases of alcoholic excess, &c. Clearly such cases would not comprise pure cases of so-called climacteric insanity as understood by Dr. Skae, and with this qualification we fully agree with Dr. jMerson's remarks on causation quoted above. Our own tables, which give but 4*4 per cent., include only such cases where the disturbances of the climacteric change and menopause were uncom- plicated with other potent exciting agencies, and where we could justifiably presume that the insanity was the more immediate outcome of this revolutionary period. In what way is this physical predisposition to insanity incurred? From the standpoint of the evolutionist, we are led to observe that the crrowth and development of the nervous-system is but a progressive representation and re-representation in ever-advancing and more com- * PsychoIo[/'ical Medicine, Drs. Bucknill and Tuke, 3rd edit., p. 360. + " Climacteric Period in Relation to Insamty," W. B. A. ]ie2)oris, vol. vi., 1S76. ETIOLOGICAL FACTORS. 390 plex terms of the wliole organism ; tliat the cci-cbrum itself is but a vast assemblage of sncli liighly-complex representative realms ; and that in the higher realms such nervous mechanisms as foi'm the jihysical expression of such representation have linked to them the psychical correlatives of feeling and of thought. The loss of any portion of the organism which has entered largely into our conscious life, or, in other words, has been frequently, or at all largely, represented in consciousness, will necessarily disturb the mental balance. Nor could it be reasonably conceived that a portion of the body which had long subserved the wants of the organism, and whose physiological history was represented in certain organised tracts of the cerebrum, could suffer ablation without some attendant commotion in the brain. In .fact, the systemic and least relational structures are in their genesis so closely interwoven with the physical substrata of feeling and emotion that wide-spread disturbance results from their derangements, functional and organic. The enormous share taken by the generative system in the physiological and psychological life of the female is a subject of 2)araraount importance in our studies of the varieties of insanity. The organs subservient for some five-and-thirty years or longer to the important functions of menstruation, ovulation, gestation, lactation, lind their nervous rejoresentatives in the fundamental tracts of the nervous system, and draw largely upon that system during their life of functional activity. Periodic relays of nerve-force demanded for the regulation of their blood-supply and of their muscular apparatus, and the ingoing currents crowding upwards from so extensive a system, enter intimately into the very web which forms the physical correla- tives of emotions and moral instincts. The vast accession of new impres- sions registered by the sensoriuni when these organs awake to functional activity during puberty has a most profound effect on the mental constitution — an effect whose significance cannot be misinterpreted; for the result is a real transfOPmation, more or less, of the eg'O, with all its feelings, emotions, sentiments, and desires. At each subsequent periodic crisis incident to menstruation, gestation, lactation, uterine involution, the nervous-centres are profoundly affected by the resultant transformations undergone, such periods being eminently periods of nerve-instahility. Pre-eminently is this the case at the menopause and grand climac- teric, when the whole of this system loses its functional activity, degenerates, and, in fact, passes almost completely out of the life of the individual. Both subjective and objective accompaniments of the menstrual molimen in a greatly-exaggerated degree emphasise and usher-in this serious distui-bance of the nervous-centres — headache, vertigo, faintness, "heat-flushes," emotional waves, phases of moral 400 INSANITY AT THE CLIMACTERIC EPOCH. perversity, irritability, querulous impatience, even intellectual disturb- ance (especially of memory and of attention) prevail ; and, wanting the relief aftbrded by the depurative ])rocess of menstruation, the distress is often a long-continued and urgent one. This, however, is the earlier stage of functional decrepitude, the early phase of which is characterised by want of decision, lassitude, and hebetude. It is essentially a period of voluminous emotions, purposcdess waves of feeling, abortive yearn- ings, redundant, vague, uncontrolled desires, and misdirected energy. That great reservoir of nerve-force, which had for its object the jiro- creative functions of the organism, is now objectless, and its expendi- ture must now be directed into other channels ; a period of emotional instability ushers-iu a period of reconstructions. J. F., aged forty-one, single; admitted January, 18S0. Patient's father was very intemperate; her mother and brother liad been inmates of this asjdum. J. F.'s life had been a very unhappy one. For many years she had been compelled to dwell with her brother, a brutal, drunken scoundrel. During the two months before being taken to the asylum, she had developed dangerous, impulsive tendencies, suddenly striking, biting at, and kicking those happening to be around her. "When admitted, a condition of fairly calm attention and apprehensiveness was constantly interrupted b}^ outbursts of furious excitement and violence. An insane self-con :,'ratulation in her power of occasioning terror by her actions, seemed possibly of influence iu the production of her paroxj'sms of passion. For three months she was liable to these dangerous impulses, of which she was aware, and expressed her grief at being unable to restrain them. Subsequently she passed through phases of suUenness, depression, and agitation, to quietude and industry. The catamenia, absent on her admission, returned during her latter period of convalescence. This epoch of reconstructions is one of peril to the mind, especially to those ill-trained mental constitutions in which the passions have been allowed an uncontrolled expression ; and where intelligent guid- ance has been denied to the instinctive desires. In fresh objects of affection, in new pursuits, aims, and studies, in other forms of mental culture many minds will seek and obtain relief for these perturbed feelings and pent-up emotions. The anxious and intelligent mother will find a sufficient object in the prospective life and well-being of the offspring ; many cultured minds will find in the fields of literature a sufficient relief to their pent-up energies ; whilst those who lack in such facilities will perhaps bend their attention towards schemes of education or charitable movements ; and the instances are not few where the political s})irit of the times affords, in our day, missions for the .same subjects. The peril of this perh)d is one incident to all periods of reconstruction arising during emotional turmoil and pertur- bation, lietlection -wants the calm essential to its orderly operation, and judgment is liable to be warped and one-sided; hence, also, it is ETIOLOGY — PROGNOSIS. 401 that this age of life is one prone to bigotry, to religious fanaticism, or to conduct based upon dogmatic and immature beliefs. An unusual and inordinate religious zeal is, indeed, a most frequent expression of this transition-period in mental life ; and tliis is of interest viewed in connection with the characteristic delusions of the insanity of this age. "NVe hear of a similar climacteric in man ; but the parallel is more fanciful than strictly correct. Even its advocates who speak of climacteric insanity in man, allude to it as occurring " at a later time of life than in the female, . . . much more irregular and indefinite. There is nothing to mark it off so clearly as the menopause" (Clouston).* The period assigned for the decline of the procreative power in man is 55 to G5 ; in fact, the borderland of senility and not a genuine epochal transformation. As Barnes states : — " There is nothing to compare with the almost sudden decay of the organs of rejDroduction which marks the middle age of woman." f With a certain proportion of cases the menopause in woman may, in like manner, usher-in pre- mature senility; but, in all, its more or less sudden onset and the great constitutional changes and local transformations wrought, frequently followed by the subject taking up an entirely new lease of life, give to this period a critical character wholly distinct from what we see in man. Prog'nosis. — The ultimate issue of an ordinary uncomplicated case of insanity at the climacteric may certainly be considered a favour- able one ; favourable, that is, as regards the duration of the malady, favourable as regards the stability of the reinstatement, and favourable as contrasted with the recoverability of all cases of insanity in the female when taken collectively. Even when all cases of insanity at this period of life are considered, whether of recent or of remote origin, complicated or otherwise, still one-half of such cases constitute absolute recoveries ; and the favourable progress of the affection is indicated by the fact that three-fourths of the recoveries take place within nine months of the onset of the attack. What, then, are the special features which serve to demarcate the favourable from the unfavourable class 1 what are the elements which enter into a favourable prognosis and the reverse 1 The hopes we can give to our patient's friends of a perfect recovery will largely depend upon the " ti^ne element," which plays so impoi'tant a role in determining the prognosis in most forms of insanity. An early and rapid cure is, as in other cases, favoured by early treatment ; and the chances of a complete and speedy recovery are much strengthened if the subject come under appropriate treatment within two weeks of the onset of her symptoms. We would emphasise here the sjjeedi/ return to a normal * Op. cit., p. 560. t Clinical History of the Diseases of Women, Burues, p. 263. 26 402 INSANITY AT THE CLIMACTERIC EPOCH. mental vigour, for it is in this particular that early treatment is so desirable. The actual numerical result of recoveries coming under treatment, from a week up to three months after the onset of their symptoms, is about the same for all (50 to GO per cent, being recoveries); but, beyond three months, fewer actual recoveries occur, and a large aggregate will be relegated to the class of the chronic insane. Will the recovery be a stable one, or will the attack subject the patient to further liability 1 As a general rule it may be affirmed that the more fully the affection realises the character which is regarded as typical of a truly epochal form of insanity, i.e., the more fully it appears to be the issue of disturbances incident to this period of life, the more likely is the return to normal health to prove a secure and permanent state. Hereditary predisposition will, of course, in such cases produce its usual results, subjecting the victim at any period to a relapse on the incidence of exciting agencies ; and the predisposing influence of former seizures will also have to be considered and allowed for in framing our reply to this query. An actual study of our cases of insanity at the climacteric shows that some 27*7 per cent, had a family predisposition to insanity ; and that 38 per cent, of the total cases had suffered from a previous attack of mental derangement. Yet the actual relapse after confirmed recovery from this form of insanity occurred but in four instances out of the whole sei'ies of eighty-three, and in three of these a predisposition to insanity was indicated by a former attack in earlier life with strong hereditary taint. Another point of importance in prognosis to recall is the mortality incident to this affection. The deaths, which amount to 14-4 per cent, at the West Riding Asylum, are due to intercurrent affections, in which phthisis or pneumonia play the chief part ; in fact, one-half the deaths occurred amongst the chronic class who had resided at the asylum for a period of from two to six years. It may be stated, indeed, that the insanity incident to this period is rarely, if ever, fatal in itself; and the chronic remnant of this class owe their unfavourable character chiefly to the exhausting influence of chronic pulmonary disease, ulcerative affections of the bow^els, or the malnutrition and defective blood-supply of the brain, due to an enfeebled and fatty heart. Another factor in the jn'ognosis is the age of the patient. It has been observed by Dr. Clouston that fewer recoveries occur after fifty years of age — an opinion with wliich we concur.* The previous habits of the patient must likewise be taken into account, and especially does this apply to the use of alcoholic stimu- lants, so frequently indulged in at this period of the woman's life. It is a well-known fact that seci-et drinking-habits become peculiarly * Loc. cH., p. 564. PROGNOSTIC INDICATIONS. 403 frequent at this era, a morbid craving for stimulation being engendered by the depression entailed at this period of reconstruction. If this vice has been contracted the malady always appears in an aggravated form. The very nature of the mental disturbance, the delusional melancholia often bordering upon a hypochondriasis, and always of a self accusatory character, finds in this grievance a sure foundation for its gloomy fears and genuine despair; these cases, as already indicated, are peculiarly prone to suicidal impulse. Such subjects may exhibit much outward calm, have an absent manner, a self-engrossed aspect, or a suspicious furtive reticence, or betray on their features the set asj>ect of despair — indications which should place us on our guard. The question of time during which the alienation has existed, the age of the patient, her hereditary predisposition to insanity, and the acquired predisposition through alCOholic indulg'ence are some of the chief factors which enable tis to arrive at our prognosis in the case. Very divergent views have been expressed with respect to the prognosis in climacteric insanity. Thus one authority says : — • "Climacteric insanity is far from being a hopeful form of mental derangement."* Van der Kolk states — "If religious melancholy begins in the clmiacteric years, then the prognosis is unfavourable;" whilst Dr. Merson says — "The history of the cases I have investigated, however, shows that as regards ultimate recovery the prognosis is by no means unfavourable, though an early recovery is not generally to be expected, "t Dr. Clouston gives a percentage of 57 for recoveries in the female sex; I Dr. Merson's table realising 59*5 per cent., or 47 per cent, when cases uncomplicated with epilepsy, general paralysis, and other brain diseases were excluded. Our later statistics, it will be seen, afford us a x-ecovery-rate of 48 per cent., and, therefore, justify the views expressed by Dr. Merson. What is the issue of the attack in the more unfavourable cases 1 It appears that about 36 per cent, form an incurable chronic residue, and about 14 per cent, meet with a fatal termination, half of which fatal cases also are derived from the chronic class. Yet these un- fiivourable cases do not necessarily demand asylum-supervision ; in fact, one-half at least become relegated to the home-circle again, and are able to discharge in a fair-ly-satisfactory manner the duties of the wife or mother, or compete for livelihood in their various spheres. Such incomplete recoveries are instances of a permanent mental en- feeblement, but are by no means subject to the recurrence of acute * Psijchological Medicine (Drs. Bucknill and Tuke), p. 145. t W(sst Riding Asylum Reports, vol. vi., p. 107. t hoc. cit., p. 56.3. 404 IN'SANITY AT THE CLIMACTEEIC EPOCH. symptoms. They remain mental wrecks after the storm, the depth of reduction varying much for each individual case. Quiet, orderly, in- offensive, they need only the kiadly guidance of the home-circle to keep them right; yet, they exhibit an unwonted apathy, an indifference to former pursuits and pleasures, a lack of energy — mental and physical — which was present in their old selves. At times depressed, they never show active suicidal symptoms ; but exhibit a flabbiness of purpose and will, which render them for lifetime the dependents upon a stronger mind. There is a remnant left, however, of these climacteric cases where the issue is far different, and where some of the worst forms of incur- able delusional insanity become established. Here aural hallucinations largely prevail, and a sexual element often appears to enter into the material of their delusions. Hours are spent at the windows listening to the communications of these unseen agencies ; to w^hich passionate, •wild outbursts of obscenity and abuse often succeed from the infuriated victim. Such attacks of excitement largely prevail at night; and the delusions based upon such sensorial anomalies lead to aggressive and destructive conduct. For many years these subjects remain a prey to their deluded fancies ; are usually self-opinionated, or arrogant, over- bearing, defiant in demeanour, and form a section of the more noisy and dangerous class in our asylum-wards. In such cases we can only hope for the speedy advent of a dementia before which the painful sensorial states and delusional perversions fade, while a settled calm and negative state of mind take the place of former turmoil. Treatment. — A tonic regimen is desirable in most cases of insanity at this epoch of life. Open-air exercise should be enjoined ; a free nutritious diet devoid of stimulants : and careful attention to the 2)rimce vio>. An aloetic purgative is often desirable at the onset, followed by mild laxatives, of which the mineral waters are a con- venient form of administration. Our experience teaches us that a large proportion of cases recover without any form of medicinal treat- ment ; the removal from their homes, the influence of new associations, and, above all, the strict attention to dietetic treatment sufiicing to ensure a cure. There are certain cases, however, whei'e medicinal interference is imperatively demanded. Ansemia must be met by the administration of iron, pi'eferably in the form of the ammonio-citrate, and in combi- nation with small doses of the liquor arsenicalis. Iron should not be given if acute symptoms prevail either of the maniacal or melancholic stamp. We should await the subsidence of these symptoms, meanwhile trusting to agencies for ensuring sleep and to a liberal diet. If there be a tendency to refuse food, we must not permit our patient TREATMENT OF CLIMACTERIC IXSAXITY. -105 to escape on tlie excuse of having partially taken her meal ; a due amount of milk and eggs with beef-tea, nourishing soups, and farinaceoua* food should be rigidly insisted upon ; and, if necessary to resort to fcjrce, compulsoi'y feeding must be adopted. Sleep must be secured by the adminstration of chloral, bromide of potassium or paraldehyd ; of which we certainly give preference to the Urst. It is rarely necessary to give larger doses than 25 or 30 gi^ains ; and where from cardiac enfeeblement its use is inadmissible, paraldehyd may be substituted with good results. The indiscriminate use of sedatives in these cases is, we think, to be deprecated ; and, only in the more acutely-stamped types would we feel justified in the more continued w&e of sedatives. For this purpose chloral in combination with bromide of potassium is the safer ti'eatment to adopt; opium or morphia, henbane and conium have proved un- satisfactory in our hands. The bromide given separately from the chloral we have less confidence in, and the combination found most desirable is 15 grains of chloral with 30 grains of bromide twice daily. We by no means share in the unfavourable view expressed by some as to the general inutility, or even hurtfulness, of sedative treatment in the acute forms of mental ailment at this epoch ; given the means of securing efiicient alimentation, such treatment is often followed by the best results. SENILE INSANITY. Contents.— Mental Derangements Incident to Senility — Senile Mania — Senile Melan- cliolia — Chronic Cerebral Atrophy — Senile Convulsions — Senile E^iilepsy — Senile Dementia — Inheritance as a Factor in Senile Insanities — Exhaustive Brain-work — Alcohol and Senility — Case of T. G. — Onset and Prodromata — Character of the Senile Reductions — Senile Hypochondriasis (J. A.) — Senile Atrophy and Thrombosis (I. B.) — Acute Senile Melancholia and Syncopal Attacks (H. D.)— Partial Exaltation in Senile Insanity— Delusional Perversions of the Mono- maniac and Senile Subject Contrasted — Senile Amnesia — Cases of Senile Insanity (M. H. and M. I\I.) — Elimination of Urea in Chronic Cerebral Atrophy and Premature Senility — A Local Manifestation of Chronic Bright's Disease. The student is apt to mis-apply the term senile insanity, that form of senile decrepitude which is but a morbid exaggeration of j^^il/siological senility ; that gradual obnubilation of mind known as senile dementia is apt to be taken as a tyjie of what is implied by senile insanity; and, so far is he right, that it is doubtless true that a far larger proportion of cases of mental impairment in senility belong to this than to any other category of mental ailment. He is, however, too apt to assume that all varieties of mental ailments in the aged issue in senile dementia ; and that the maniacal excitement which is so frequently observed at this time of life is necessarily the accompaniment or the precui'sor of 406 THE INSAXITY OF THE SENILE EPOCH. senile decay. It is, therefore, necessary to inrlicatc that this term connotes a very large class of symptoms, emijracin;,' between them all the varied forms of insanity usually differentiated. The pathology of old age is as unique and interesting as that of infancy and adult life; and, just as we are aware, that certain periods of life bestow a special immunity from certain morbid aflections, so do we find old age by no means an exception to this rule. That it has its own special affections of the central nervous-system, as of the body at large, is also a well- established fact; and that such morbid changes are characterised by a special tendency towards atrophy has long been recognised. Apart, however, from such special immunities and proclivities as this period of life is apt to entail, there are other forms of mental alienation common to it and to adult life which must be taken account of ere a faithful picture of senile insanity can be framed. Simple melancholic states, maniacal perversions, in themselves recoverable forms; or more obstinate delusional perversions with, or without, permanent dementia, paralytic dementia, the dementia of chronic cerebral atrophy, epilepsy, and even general paralysis, may severally be encountered during advanced senility in the predisposed. Yet, it is none the less true that such affections, more common at other epochs of life, are considerably modified by the physiological stadium, and are stamped with a special impress which more or less distinguishes each form of senile alienation from the psychosis of earlier periods of life. A careful study of insanity amongst the senile admissions into our asylums, and an attem2)t at a rational classification into groups accord- ing to their most obvious pathological indications, will cause the student much perplexity at first, owing to the extreme multiplicity of symptoms which he encounters amongst such cases. He will early learn, through the painful experience of a faulty diagnosis, that it is easy to confound functional derangements with the earlier indications of organic brain-disease; and he must be fully prepared to find his prognosis stultified, unless due attention be paid to the modifying influences of the senile epoch over the nature and course of the disease. Senile Mania. — He will meet with forms of simple maniacal excite- ment without any very obvious enfeeblement of the intellectual faculties, in which emotional instability, incessant garrulity, and rest- lessness are the only obvious disturbances recognised. Such excitement may vary from one of slight degree to very acute forms; and, in the latter case, may prove most persistent and most obstinate to all remedial agencies. The rambling disconnected speech may pass into utter incoherence, the motor restlessness become extreme, and insomnia defy all our means of relief. Such cases of senile mania may require long-continued and forcible feeding, and cause us much anxiety MENTAL DERANGEMENTS INCIDENT TO SENILITY. 407 lest a fatal degree of exhaustion ensue. And yet, such cases, although often the precursors of permanent dementia, may completely recover and leave our patients with scarcely a vestige of mental enfeeblement apparent, beyond what is natural to their time of life. It is to the distinction between such recoverable forms, and those intercurrent attacks of mania which are frequent during progressive senile atrophy of the brain, that the student Avill have his attention chiefly directed. Recurrent maniacal attacks are of special frequency amongst the aged iiisauo, who are prone to explosive discharges from their ill-nourished and highly-unstable cerebrum ; and such recurrent seizures are notably present in those senile cases who have acquired a predisposition through alcoholic indulgence. Senile Melancholia. — A second group of cases is presented in those forms of simple melancholic depression to which certain predisposed subjects are liable during the physiological involution of the nerve- centres on the advent of senility. Depression at this epoch is always of most ominous import; it may be the precursor of senile mania, it may usher-in hopeless forms of senile dementia, or it may be the warning- note of those serious forms of dementia which are connected with an interstitial or gross cerebral change, such as occur in chronic cerebral atrophy with its scleroses, or hsemorrhages, or softening from thrombi. Here, again, the student will find his attention profitably directed towards the diagnostic distinctions betwixt simple senile melancholia as a purely functional ailment (which is a fairly recoverable form of alienation), and the depression which augurs a serious structural change in the nervous-centres. As we shall see later on, such forms of simple melancholia, unaccompanied by any delusional state, are notably characterised by their strongly-marked suicidal tendency, which appears in 79 per cent, of such cases. Chronic Cerebral Atrophy. — Passing by these simple forms of aflfective insanity, we arrive at a third, and a very interesting, group of cases, which, whether the symptoms be considered from the mental or physical side, present evidence of a very definite pathological process — we allude to chronic cerebral atrophy. This is an afiection no more limited to senility than the foregoing, yet it is of special occurrence at advanced age. The affective sphere of mind is also here involved, and painful mental states predominate. Despondency and gloom issue at limes in acute melancholic or maniacal outbursts, yet morbid depression is here usually associated with enfeebled will and a special tendency to instinctive, impulsive states. Chronic melancholia, with impulsive propensities, is the prominent mental symptom. The disease appears to project itself mainly upon the motorial sphere of mind; and the diseased vascular tracts in the cerebral hemispheres are peculiarly 408 THE IXSAXTTY OF THE SENTLE EPOCH. prono to nppoar in the frontal and motor I'calms, cortical and ganglionic. A group of symptoms constituted by despondency, self-absorption, general intellectual torjjor, failure of memory, enfeebled volition, impulsive conduct, often desperately-suicidal attempts; and, with this, highly-chai-actcristic physiognomical signs, such as a pained, vacant aspect, a dulled, lustreless eye, a jaundiced earthy tinge of integument, tortuous radials, temporals, or brachials, a slow and lalioured utterance, and an utter want of initiative — are in themselves a very suggestive category. When, with such a case, we find general muscular enfeeble- ment progressively advancing, a history of slight, transient strokes, a very temporary loss of speech, a slight glossoplegia, facial or brachial monoplegia, or slight syncopal or vertiginous attacks repeating them- selves frequently, we may be pretty confident that we have to deal with a case of chronic cerebral atrophy as the result of vascular disease, and probably associated with considerable renal and cardiac degeneration. Senile Convulsions. — A fourth group presents itself under the form of convulsive affections. After a more or less prolonged period of mania or melancholia, the persistence of which may be unexplained, there will suddenly occur a partial or general convulsive seizure, with, or without, loss of consciousness. The patient henceforth becomes subject to more or less periodic attacks of genuine epilepsy or epilepti- form convulsions. Such cases, however, are not so numerous. Out of 260 cases of senile female admissions but 20 cases, or 7*6 per cent, of the whole, were subject to convulsive attacks, and in not more than one-half this proportion did the convulsive neurosis assume such a grave aspect as to be regarded as the most prominent morbid feature. Senile Epilepsy occurring during the course of any form of mental alienation is, of course, of very evil augury. It betokens, usiially, a localised nutritive derangement of a grave character, due to diseased vascular tracts of the cortex or ganglia at the base. Senile Dementia. — Lastly, there is the well-known insane dotage of the senile dement, in which all the mental faculties are progressively affected, and in which maniacal excitement, or, less frequently, melan- cholic gloom or agitation, may recur over and over again, and very vivid hallucinatory and delusional conditions may prevail; yet a steady decadence of mind proceeds and utter fatuity results. With respect to the question of inheritance in senile subjects, let us remember that although much depends on the organised stability of the nervous-centres, we must not omit to lay due stress upon excep- tional environmental conditions of life, and especially \ipon conditions self-induced, or to which the organism wilfully exposes itself in defiance of all physiological dictates. Whatever be the resistance of ' the organism to morbid excitants, we can safely assume that the latter INCITIN-G AND PREDISPOSING AGENCIES. 409 may reach such an intensity as to break through all opposition, and that inherited instability need by no means be predicted in such cases; in other woi'ds, insanity may be acquired purely ab extra. "We have too many instances allbrded us of the break-down of good, stable minds through the stress and tension induced by surrounding conditions of life, to permit us for one moment to hesitate in our acceptance of, or to allow us to qualify, this statement. Sustained mental exertion may be carried on under unfavourable circumstances to such a pitch as to issue in complete demoralisation; undue stimulation of nervous-centres already fagged by overwork, will as certainly, if persisted in, entail in the issue complete disorganisation, or deterioration of the output ; it is, therefore, highly necessary that we should lay full emphasis upon the environmental conditions. Given a case of strong hereditary predis- position, and we infer that slight exciting agencies will suffice for a culmination in some morbid development. Given but a feeble predis- position, and the resistance to morbid excitation rises ; so that a potent cause only ah extra will induce the vicious evolution. Yet it is equally true that, apart from any traceable ancestral frailty, certain vicious conditions of life will of themselves induce such cerebral disorder as to culminate in an attack of insanity. What do "we know respecting ancestral history and the interaction of the environment in cases of senile insanity 1 A predisposition was clearly ascertained in some 58 cases of senile insanity out of 261 male patients, or a percentage of 22. This estimate includes collateral and direct transmissions, and was limited almost exclusively to the parentage and to the collateral line of brothers and sisters. If direct inheritance only be taken into account, the percentage would still remain as high as 15. Now this is considerably above Dr. Clouston's figure (13 per cent.), and, in fact, lies midway betwixt the percentage given by him* and the average heredity ascertained for 1810 cases of all forms of insanity alike (31-5 per cent.). Dr. Clouston speaks of ancestral inheritance as "-yery uncommon" but admits that such estimate includes a fallacy " that the facts about heredity were further back and more forgotten in this than in any other form.''! Such a qualification, undoubtedly well-based, applies equally to our own statistics ; and we may with justice assume that an insane inheri- tance would, if all the facts were forthcoming, be found to be pretty much what is the average for all forms of insanity taken together. But apart from the frequency of its occurrence as a factor is the question of the nature of such inheritance and its intensity ; unfortun- ately our data for a reliable conclusion upon these points are too scanty. Dr. Clouston's assumption is that — " To have survived, therefore, the * Op. c'lt., p. 567. i IhkL, p. 500. 410 THE INSANITY OF THE SENILE EPOCH. changes and chances, tlie crises and perils of life with intact mental func- tion till after sixty, means slight neurotic heredity, or great absence of exciting causes of disease."* Were we to regard the dictum tliat the stronger predisposition is manifested earlier in life (open as it is to such Tiumerous excejitions) we would still take exception to applying such a Jaw to the cases of insanity under consideration. What are the positive facts before us 1 If we take into consideration all forms of neurotic inheri- tance alike, we find a percentage of 2G-4 give such histories; that in several cases both father and mother were insane; that in some, several members of the family were epileptic ; that in others, direct hereditary insanity was traceable (associated with epilepsy and paralysis), and that .suicide was not infrequent in the family. We should, therefore, incline to the view that the senile insane exhibit a fairly average pre- dis|)osition to insanity; and that, possibly, its late development in such .subjects may depend upon the nature of the neurotic inheritance and the developmental period during which it was originally acquired by the ancestor ; for the law that a morbid condition tends to reappear at an earlier age in the j^rogeny is not final upon this point. For us, however, the more important point for recognition is that whatever proclivity towards insanity there be in such subjects, due to inheri- tance, there is a most powerful agency in operation in a large number of such cases in the surrounding conditions of life. Undue cerebral ■excitation, whether in the form of excessive mental work, and especially when prolonged intellectual operations are associated with anxiety and worry, or exhaustive emotional states, frequent exhaustive demands upon the intellectual operations, sustained mental tension in the struggle and competition for existence, will, as we well know, result in utter mental and physical prostration, even in those who possess the ■elasticity and resistance of manhood ; much more should we expect such agencies to be operative for ill, at an age when the brain-cells haA-e reached their limit of normal functional activity, when function '5 cj ••^ a t« to o = c3 o-j r-^ «tH -^ r-^ ■Td ■&hS. ei o o H > -J ^ ^ -+,^ ^ P ? =4-4 S -1^ <-l § ;; 4J aj .2 •4^ >5 ;-i c "^ O o ^ M 5 03 +3 r^ ff ^ f-^: o i 73 O d 3 '^ " " " < a .^ >.'^'o o c» CO o o'Socs C-) I>- ■•* LO t^'S m .' — ' ^^ "-^ ■■^ ^5 ■3 O J3. cS lii'ic mat ealt •Ues Cp =P "7^ o l>- CO O Emp Esti inH Par Fori o oo C3 CO tH CO CO ■c ^ |s| O C^l C -0 O-n a CO «M c !=H O (M _ rH rt 1-1 -H rt 1—1 1— 1 1— t 1— 1 1— 1 CD to o Ci Tjl (M < lO O in o s* § ^ ^" CO - - - CO. „„„„„„„ oT - •> CO - . „ -, aD - ' - ^ "'•-"---•• S^ " " O) " ' " " co"-f'o"r- •^" >0 O" t~r CO t-^ OC" Cl" rt" t-^aToT co'-f'o't-^ar c) c^ (M (^^ C) (M (M C-J 0-) -i r-l rt ^ M 1— 1 '^" „ - , fc^ ' ' ^ -S :; :; : :^ r : : CS , -. - - S " " s " " ' " P^ ^ ^ H > > P- J-* >-s 02 428 PREMATURE SENILITY. 1 O o ^ o-S. ?§ §•3 n o ^ tn S O a s O ?5 K pi O ^1 II III irsooaD t-eoOLO oo-^cjcOi-h ■-1 01 -^ cc ci cc >ij< o — I — < '-r -o lO C5 w c-1 >* CI C) C-J •<*< CO 't lO — — (M ci ec (M — < O O Cl CO t~lr- lO O U5 O t^ o So ■* CO i-o lo c o o o CO -* r^ ',2 c^ CI CI C) CI CI = o o o CC r— I 1~ o o c:; O O coo OOOO OO'-CO: re I— I o o 71 ce cc ■-:: X c/: ic x i: ■ ^- o CI o t^ CI — cc X r— re — X > czi ^ - - CO CO -* >r: t^ CO CHRONIC CEREBRAL ATROPHY AND BRIGUt's DISEASE. 429 contrast by a case of general paralysis (./. //.), and one of acute delirious mania {T. R.). The urea was estimated in these cases by means of Gerrard's ureometer, and the amount in health normal for each individual was obtained by Parkes' empirical formula, having regard to the sex, body-weight, quiescent, or active condition of the patient. When these conditions, together with those dependent upon diet are allowed for, we still find a considerable deficit in the amount of urea daily eliminated. Two cases out of the seven revealed albumen, and only to a slight degree. The history of such patients points very decisively towards the morbid change being expressive of a general constitutional derangement, which we must identify with chronic Bright's disease, and which expends its force with varying degrees of intensity — 1. Upon the minute arterioles of the kidney, productive of the small contracted organ met with— 2. Upon the minute cerebral arterioles issuing in this chronic atrophy of the brain— 3. Or is chiefly emphasised in the vascular apparatus of the spinal cord. In all such cases alike we have similarly-disturbed functional prodro- mata with associated neuroses; in all the high-tension pulse is a characteristic indication; in all a similar effect is reproduced upon the heart and large blood-vessels. If we contrast the senile pulse where atheromatous degeneration prevails with that of a typical instance of chronic brain atrophy, we find the former presents a tortuous artery, unduly prominent and visibly mobile with each pulsation, giving a sphygmogram of exceed- ingly low tension, a vertical percussion up-stroke, an almost equally sudden collapse, and a frequent diminution of the dicrotic wave varying with the endo-cardial and aortic conditions. There may possibly be a degree of aortitis deformans, with loss of normal elasticity, associated with more or less aortic regurgitation; secondary undulations during diastole are usually absent. In these cases of cerebral Bright's disease, however, the pulse is small, very hard and incompressible, in fact, indicative of a high arterial tension, modified more or less by a hypertrophied left ventricle; there are also a well-marked percussion-impulse A'arying with the degrees of hypertrophy, a well-sustained tidal and good dicrotic waves, often succeeded by a slight secondary undulation during the diastolic pause (arterial elasticity). In the case of extensive atheromatous disease a tracing-pressure of from 30 to 60 grammes suffices, and the occlusion- pressure is very low; in the pulse of the subject of chronic brain atrophy the hardness is so marked that we have often to employ a pressure of 430 PREMATURE SENILITY. 180 grammes, and -with a large liypertrophied heart the pressure often has to be still further increased. The obstruction in all these cases is due to the hypertrophy of the tunica vucscuhiria. As was indicated years since Ijy Dr. Broadbent,* the peculiar character of the spliygmogram is immediately altered by the exhibition of aniyl, and also by the onset of jjyrexia. With the atheromatous condition, however, the exhilntion of amyl, of alcohol, and especially of alcohol subsequent to chloral, produces such paralysis of the muscular tunic as often to result in a dangerous vaso-motor relaxation — a condition not seen in chronic brain atrophy except with the association of extensive atheroma. As in the early stage of Bright's disease the chief symptoms are those referrible to disordered digestive and assimilative functions — pyrosis, eructations, gastralgia, nausea, loathing of food, or a capricious appetite may long prevail and constitute the premonitory note of alarm. Then follow evidences of depraved blood ; of the hydrsemia associated with adventitious irritating substances which fail to be eliminated ; the red-corpuscles decrease in number, and the circulatory energy becomes impaired. Yet it is in the early prominence of nervous symptoms that we see indicated the tendency to issue in brain disease. All cases of Bright's disease exhibit more or less of these nervous derangements, but such symptoms are peculiarly emphasised in the cases with which we are now concerned. Headache (often hemicrania), giddiness, vertiginous seizures, syncopal attacks, severe palpitation, disordered sensation (special and general) are peculiarly prominent. Some subjects are victims to severe forms of facial neuralgia, others complain of great mental torpor with somnolence or even stupoi*. A deranged state of the blood, as regards its quality and its supply to the central nervous system, explains to a large extent these symptoms of disordered innervation. Just as with the renal implication of chronic Bright's disease, the intensity of constitutional and local indications may bear no constant relationship to each other — so in these cases the degree to which the nervous-centres are involved will greatly vary for each individual case, the local having no constant relationship to the constitutional. "With the implication of the nervous-centres we may find associated every degree of renal and hepatic degeneration and cardiac hypertrophy ; but it is more usual to find the kidneys in a state of early interstitial fibrosis than very extensively affected ; we usually find one organ in a much more advanced state of degeneration than the other. The special determining factor upon which depends this tendency to * Discussion at the Royal Medical and Cliirurgical Society, Med, Times and Gaz, Dec, 1S72. ALCOHOL AS AN ETIOLOGICAL FACTOR. 431 implication of the cerebrum in particular, in cases of chronic Ijrain atrophy, would appear from our statistics to be alcohol; a large percentage of alcoholic cases undoubtedly succumb to this affection. The selective power of the brain for alcohol has probably much to do with this determination of morbid activity towards the cerebral blood- vessels. Eecognising in most, if not in all, such cases, the injurious effect of alcohol upon the blood-plasma, we cannot too strongly insist upon the importance of defining the constitutional as apart from the local derangement in the earliest stages of this affection, and of at once treating such conditions with the object of evading the local implication. PART III.— PATHOLOGICAL SECTION. General Contents.— ^Nlorlnd Condition of Cranial Bones— Investing Membranes — Brain Substance — Histological Elements of Cortex — Forms of Tissue Dej^radation — Pathological Anatomy of General Paralysis, of Epilepsy, and of Chronic Alcoholism. GENERAL PATHOLOGY AND MORBID ANATOr/IY. Contents. — The Cranium — Dura Mater — Pia-Arachnoid — Arachnoid Htemorrhage — Adherent Pia — Vascular Apparatus — Congestion — Inflammation — Softening — Atrophy — Miliary Sclerosis — Colloid Degeneration — Granular Disintegration of Nerve-cells — Pigmentary or Fuscous Degeneration — Developmental Arrest of Xerve-cells — Vacuolation of Cell-i^rotoplasm — Vacuolation of Nucleus — Destruc- tion of Intra-cortical Nerve-fibre Plexus — Tissue Degradation from Over-strain — Tissue Degradation from Active Morbid Processes — Tissue Degradation from Disuse — General Summary. The CPanium. — The bones of the skull-cap present as their more frequent anomalies of texture, one or other of the following con- ditions : — (1) They may be thickened even to an excessive degree, and yet be light in weight from the abundance of rarefied diploe. (2) They may be increased in thickness, and heavy from general increase in density throughout, and subpei-iosteal addition of bone. (3) They may be extremely dense, but not thickened (on the contrary, they may be thinner), and the surfaces eburnated and polished in aspect. (4) They may be reduced in thickness and density, even to such a degree as to become semi-diaphanous over certain regions. The first condition (due to subjacent irritation) is sometimes associated "with thickened and adherent dura mater ; subacute inflammatory states, probably, explain this association of central rarefaction with superficial hyperostosis. The second condition is far more frequent, and sometimes leads to extremely heavy skull-caps ; it may also be due to prolonged and very chronic inflammation of the texture ; although in many cases it is probably the result of repeated vascular engorgements, and the excess of nutritive plasma brought to these parts by conditions of violent cerebral excitement, occurring through a period of many years in chronic mania. The thickened dense skull-cap is frequent in epileptic subjects, and in the dementia TIIK CRANIAL UONES. 43.'i of chronic insanity.* The inner surface may exhibit protuberant bosses, frequently coinciding with subjacent atrophy of brain-substance; whilst the grooving of the vitreous table is converted into a deeji channelling, extending almost to the cancellated structure, and bridged over here and there by newly-formed bony tissue. The hyperostosis is genei'ally disposed over the whole of the vertex, but is almost i-nvariably most pronounced in the frontal and the occipital regions, and more especially the former locality. "When, as we occasion- ally find, localised hypertrophy occurs, the frontal bone is by much the more frequent site of the thickening. We have records of fifty-four cases of localised hyperostosis, and in thirty-one of these the frontal was the site of this bony increase ; in seven cases the occipital, and in six cases the parietal were the regions involved. A not infrequent disposition, and one which carries with it con- siderable interest, is the thickened state of the left frontal associated with that of the right occij)ital regions. The frequency of cranial hyperostosis may be gleaned from the fact, that it presents itself in one-fourth up to one-third of all cases of insanity. Thus of 1,5C5 fatal cases of insanity, the cranial bones were thickened in 404 instances (or 25 "8 per cent.); and they were indurated, dense, and heavy in 523 subjects, or 334 per cent. The diminution in the thickness and density of the cranial vault is most usually seen in senile atrophy ; the process whereby such a condition is induced being, in fact, similar to that universally pre- vailing at this period. The facial boneS, however, are more subject to this atrophic change than those of the cranial Cavity, and, in fact, we may note the coexistence of the former with hypertrophic thick- ening, and induration of the latter {Rokitanshj). The sutural lines are usually the site of most advanced atrophy, and irregular depressions or pits alongside the sagittal suture, indicate the absorption due to exuberant Pacchionian bodies along this course. The vitreous table is more especially involved in these senile cases, and the morbid process is one of eccentric atrophy, the compact being gradually replaced by cancellous tissue. Osteophytes in the form of irregular superficial masses on the inner surface of the cranium, osseous spiculse, plates, and small exostoses are occasionally met with ; as also a form of eburnated osteoma of concentric lamellte with radiating canaliculi, * " Hyperostosis almost always presents itself in both its forms, namely, that of deposition externally upon tlie bone, and simultaneous condensation of its tissue (sclerosis). In a few cases it goes on to such an extent that the skull is not only (according to ladelod and Ilg) larger than natural, misshapen, and uncommonly thick (9 lines to H or 2 inches), but it also acquires a weight that is almost incredible."— PailAcyi, Anat., Rokitansky, vol. iii. 28 434 MORBID STATES OF THE INVESTING MEMBRANES. and devoid of blood-vessels ( Virchow, Cornil, and Itanvier). All these indicate " an extinct localised inllammatory process, the products of ■which here remain in an ossified form" (Griesinger). Our own* observations tend (with certain qualifications) to confirm the opinion long since expressed by Dr. Bucknill, that the increased thickness of the cranium in insanity is not connected with cerebral atrophy, his statement being — " Some of the heaviest and thickest crania "which ■we have met with, have occurred in instances in which there was little or no cerebral atrophy ; and the condition of the cranium where thei'e is imdoubted atrophy of the brain, is not unfrequeutly one of abnormal tenuity." * Exostoses and bony spiculte are exceptionally- rare in those dying insane. Dr. Bucknill states that such outgrowths were found by him in but three cases out of 400 siibjects. Our own observations ■would tend to render them of even less frequent occurrence ; since out of a total of 2,616 fatal cases of insanity, exostoses occurred in but six cases, and bony plates in the membranes in eight other cases. Dura MateP. — This tough inelastic sac investing the brain has so long been considered and described as of double constitution (that is, of dura mater proper, and parietal layer of arachnoid) that it becomes important to define our position respecting its nature ere we describe its anomalies. Eokitansky especially insists upon the distinction — " We are compelled to adopt the distinction by the substantial differ- ence -which is exhibited, at least at jfirst, by morbid processes in the two layers. Inflammation, for instance, attacks one of the layers independently of the other, and presents differences accordingly in its course, in its proneness to extend along the surface, and in the pro- ducts it furnishes, which manifest the analogy between that layer and serous membrane in general."' t Despite the assertion of so eminent an authority, the tendency of modern anatomists has been towards the contrary opinion. The epithelial layer, forming the inner smooth surface of the dura mater, is now generally regarded as proper to that membrane, and not, in the true sense of the word, a reflection of arachnoid. One fact, which tended to emphasise the divergence of opinion respecting this anatomical structure, was the frequency of the formation of so-called arachnoid cystS within the cavity embraced bet^ween dura and visceral arachnoid. A certain number of patho- logists regarded their origin as haemorrhag"ic, pure and simple ; another class viewed them as products of true inflammatory condi- tions ; and the latter naturally held that ^the inner surface of dura, to which they are often attached, is a true serous surface, giving rise * Psychological Medicine, Bucknill and Tukc, 3rcl edit. , r- 5G6. t "Pathological Anatomy," iSyd. Soc. 7''rciut\, vol. iii., p, 323. MORBID STATES OF TUE DUUA MATER. 435 to these inflammatory exudates. With Axel-Key, and Pictzius, we would describe a visceral arachnoid only, so that the structures and spaces formed between the cranial bones and the brain would bo from without inwards; (a.) dura mater ; (b.) suh-dural space {formerly the ^^ arachnoid sac"); (c.) arachnoid; (d.) sub-arachnoid cavity ; (e.) _^;ia mater; (f.) epicerebral space. It must be remembered that this tough fibrous membrane is firmly attached to the inner surface of the cranium, as its inner periosteum ; but, the attachment amounts to firm adhesion along the sutural lines, and at the basal openings, foramen ovale, foramen lacerum, and foramen magnum. It is supplied with blood from the various menin- geal branches, and a rich supply of nerves from the fifth, twelfth, and sympathetic ; in inflammatory conditions of the bone and of this membrane, the inelastic nature of the dura sets up very acute pain from compression of these nervous filaments (Buret). Adhesion, to a morbid degree, betwixt this membrane and the bones of the cranium is of frequent occurrence in chronic insanity ; partial adhesions, indicative of bygone inflammatory change, are found in some 15 per cent, of those dying insane, whilst universal strong adhe- sions were established in 90 out of 1,565 fatal cases of insanity (a per- centage of 5'7). The favourite site, as before stated, for partial adhesions is the frontal bone, either along the course of the coronal suture, or in the hollow corresponding to the external prominences of the frontal bosses (10 per cent.); the next more frequent site is the sagittal line and the parietal bone on either side. In a small propor- tion of cases, sixteen only (1 per cent.), the chronic inflammatoiy change had induced a noticeable thickening of the dura ; and in a still smaller category was its appearance as to colour modified from the engorgement of its small vessels (in such cases, the texture was softened and infiltrated, and the subjacent bone similarly involved). Morbid adhesion betwixt this membrane and the arachnoid and brain is of very rare occurrence ; we have seen it in but -6 per cent, of our cases ; and this we regard as another indication of the nature of the epithelial lining of the dura, which seems to present no morbid sympathy wiflh the true arachnoid or to be liable to adhesive inflam- matoiy states. Ptokitansky has affirmed the frequency of such con- nections, but we fail to verify his statement ; at all events, amongst the insane community.* The adhesions are often so extensive and firm that it is difficult to remove the brain without injuring the organ ; hence, the skull-cap with its attached dura have to be removed together. On attempting to separate it from the bones in these * See also on this point Dr. Bucknill : Peycholo'jkal Mcdkine, Bucknill and Take, p. 568. 436 MORDID STATES OF THE INVESTINO MEMBRANES. extreme forms, we fail to do so, as the membrane tears into shreds, or splits up into layers, leaving irregular white glistening membranous lamellfe, strongly contrasted with the rosy or deeper tinted bone around. All this is, of course, indicative of the results of old-standing inflammation. Bony plates within this membrane, as a result of further change in the inflammatory exudate, occurred in 8 cases out of a total of 2,616. It is probable that the exostoses described on the inner surface of the bones of the skull have their origin often in the membrane itself, or in exudate intervening betwixt the two. In one remarkable case the whole of the falx cerebri was thus ossified into a corresponding sickle- shaped bony plate,* such as permanently obtains in the ornitho- rhynchus ; on the other hand, a bony tentorium cerebelli, which we know is normal in many mammals, we have never seen amongst the insane. The Pia Arachnoid. — A milky cloudiness of the arachnoid is seen in most brains of those dying at middle age, and the opacity becomes more decided with advancing years, until, in the aged, it is seen to a notable degree, apart from any actual cerebral disease. It has been invariably attributed by pathologists to frequent congestive conditions ^chronic hyperaemia) of the membrane, to which (as Rokitansky affirms) every one at an advanced age must have been occasionally subject. Whatever be the explanation in the comparatively healthy brain, there is no doubt that in the extreme degi'ees of this change, seen in the insane, we must infer a chronic inflammatory agency. In senile atrophy of the brain we see this physiological retrogression emphasised, opacities and thickening of texture being often marked features here, apart from any inflammatory change; the outbursts of senile mania are, however, often associated with a chronic meningo-cerebribis, which subsequently reveals itself in morbid adhesions betwixt the brain and soft membranes. It is peculiarly frequent in those prone to alcoholic intoxication {Rokitanshy, Griesinger), and we have seen it as a constant change in the brain of the sane and insane criminal class — which class is, to a notorious extent, addicted to intemperance.f In the insane community generally, we have found arachnoid opacity prevails to a notable degree * "A similar structure, constituting an unique specimen of anatomical variety, is exhiljited in the slvull of a female l)elonging to my collection " [Blumcnhach). t "It may be generally considered as the result of former chronic hypenemia and inflammatory stasis ; it accordingly occurs together with increase of the Pacchionian granulations — which depends on analogous processes — under all circumstances where habitual cerebral congestion existed during life, as in the case of drunkards, who, indeed, can rarely be considered as mentally healthy." Griesinger on "Mental Diseases," Syd. Soc, 1867, p. 418. MORBID STATES OP TUE PIA ARACHNOID. 437 — in nearly 50 per cent. (772 out of 1,565 cases) — and, as usual, most marked along the sulci and the immediate vicinity of the blood-vessels. It is usually associated with considerable thickening of the pia arachnoid (the pia is abnormally thickened in fully 48 per cent, dying insane), partly from fibrinous exudates which have organised, partly from plastic lymph, and often from an cedematous swollen condition of the conjoined soft membranes, and the trabeculae intervening betwixt them in the sulci, resulting in a watery, semi-translucent, gelatinous appearance, with here and there scattered patches, points, or streaks of opacity. The outer surface of the ai'achnoid, covered with a delicate pavement-epithelium, becomes at times perceptibly rough and granular, both to the touch and to naked-eye examination; the condition resembling, histologically, the granular condition of the ependyma, or lining-membrane of the ventricles; it is especially prone to occur at both sites in general paralysis of the insane. The conditions above referred to of opacity v/ith thickening of the pia arachnoid may be unattended with any excess of fluid in the sub- arachnoid space; usually, however, in the chronic insane, great excess prevails, so that the normal limpid cerebro-spinal fluid (which varies considerably between 2 drachms and 2 ounces) may be very largely augmented up to 8 or 10 ounces; the soft membranes are buoyed-up by such accumulation, and their meshes become thickened, glutinous, and water-logged. The fluid is acid in reaction, whilst the normal cerebro- spinal fluid is alkaline. It must be borne in mind that this sub- arachnoid cavity is continuous with the general ventricular cavities of the hemisphere, with the central canal of the spinal cord, and with the sub-arachnoid space; products of inflammatory activity being thus capable of transmission to distant parts by the movements produced in this fluid during locomotion, respiration, and circulation, all of which are known to affect the cerebrum. In connection with the arachnoid there is an important morbid state, the frequency of which, in insanity, and especially certain chronic forms of insanity, makes it a striking feature in our post-mortem records; the condition referred to is that of false membranous productions, enclosing various contents from straw-coloured serum to thin bloody serum, or blood partly or completely clotted. These formations have been often referred to by the inapt term of arachnoid cysts. When they occur as gelatinous-looking exudates or pseudo-membranous structures upon the inner surface of the dura, they have been regarded as inflammatory in origin, and have been described by Virchow as pachymening'itis interna, in accordance with the view of Calmeil, Boyle, and others. We incline strongly to the view that the inflam- matory theory of their origin cannot be supported by a tithe of evidence 438 MORBID STATES OF THE INVESTING MEMBRANES. from asylum experience; there can, we tliink, Ijo little or no doubt that, in tlic case of those dying insane at least, we must claim a hSBniOrrhag'ic OPig"!!! for sucli formations. Their frequency may be judged of from the fact that 81 cases are recorded in 1,565 autopsies of the insane, and their special frequency in that form of insanity which is associated with general pai'alysis, is emphasised by the occurrence of 30 instances in a series of 242 general paralytics (a percentage of 12). The appeai'ances presented by them vary considerably with the stage at which they are found. In early stages we may find a sliglit rusty- staining over a more or less localised patch of the inner surface of the dura, or, perhaps, covering the whole area of one of the fossje (and especially the middle fossa at the base of the skull); over this rusty- stained groundwork minute droplets of blood are seen, as if besprinkled by a brush, or as if the blood had oozed from the surface by a sort of sweating process. The rusty-staining can be scraped off as an extremely delicate and structureless pellicle. Or, again, the inner surface of the dura may overspread a somewhat amber-coloured glutinous-looking layer, which can be readily stripped off and appears to be a purely fibrinous formation, enclosing more or less arterial blood. Such structures form translucent pellicles, which, when examined, look like gutta-percha tissue stretched to a delicate tenuity. The extravasation is often extensive, flattening the convolutions, and inducing consider- able atrophy — a simple dark clot of blood moulded to the form of the arachnoid cavity occupied by it, thick at its central parts, thinning out towards its margin, and covered with a delicate fibrinous layer above and below; or the fibrinous -formation may be thicker, more organised, and may constitute a complete sac enclosing the blood-clot. E/okitansky's classical description holds good for the formations in the insane. "Its adhesion with the dura mater, too, is loose ; it partly sticks on, and partly is connected with the membrane by a few small vessels. Both walls of tlie sac arc usually of a brown, rusty colour, and tenacious. They may often be separated into several layers which vary in thickness, but the inner of which are more thin : at the margin of the sac they coalesce and form one lamina, which soon becomes reduced to a thin, brown, rusty-coloured membrane, and spreading out further on the cranial vault, reaches to the base, and at length terminates in a thin, rusty- coloured, gauze-like film . . . within, the sac contains a more or less thick fluid, of a dark and various colour, like chocolate, or plum-sauce, rust, or yeast; in course of time the lympli is gradual!}' removed, the inner surface of the sac becomes smooth and polished, and the contents are changed into a colourless, thin, clear, serous fluid."* "We have never observed what the same authority states is of occasional occurrence, viz., the ossification or formation of bony plates * Op. clL, p. 330, ORIGIN OF ARACHNOID IliEMORRHAGE. 439 or concretions on its outer wall next the dura. Some of the more cogent reasons for regarding these formations as non-inflammatory are : — 1. The cyst is readily removable, slightly (or not at all) adherent to the dura mater. 2. In the majority of cases there is no evidence whatever of the existence of a pachymeningitis ; («) the dura is not thickened or softened, or vascular ; (&) no organic connection exists betwixt the two. 3. In eai'ly stages the characters are purely those of a simple extra- vasation of blood into the arachnoid cavity (subdural space). 4. There is the co-existence in this affection of a recognised vascular disease and vasomotor disturbances which render liDamorrhage frequent, e.g., the othsematoma or " insane ear." In an important communication my former colleague, Dr. Robert Lawson, expressed the same views as are here entertained.'" As regards their cause and origin and general etiological relationship amongst the insane, it has been pointed out by Sir J. Crichton-Browne that the age of their more frequent occurrence was between 35 and 45 years — an important feature as distinctive between it and ordinary forms of cerebral haemorrhage, which occurs more frequently at a much later period of life. The same authority in an analysis of fifty-nine cases of arachnoid cyst, occurring at the West Hiding Asylum, has clearly established the vast preponderance of this accident in cases of general paralysis, as seen in the following table FIFTY-XINE CASES OF ARACHNOID CYST General paralysis afibrds Chronic disorganisation of brain Senile atrophy Epilepsy Mania associated with chorea Mania with meningitis Insanity witli Bright's disease Chronic mania with phthisis 29 16 3 59 As regaixls sex, it is recognised as occurring more frequently in men, from very obvious reasons ; the most important being the greater frequency of its congener, general paralysis, in the male than in the female. Our records embrace the histories of 73 additional cases since the above were tabulated by Sir Crichton-Browne, and these, arranged as * See footnote, p. 440. 440 MORBID STATES OF THE IN'VESTINr, MEMBRANES. to associated cerebral states and sex, illustrate forcibly the foregoing statements : — SEVENTY-THREE CASES OF ARACHN'OID CYST. General paralysis afforded instances in 30 Males and 4 Females. Chronic disorganisation of the brain Senile atrophy Epilepsy Mania . Melancholia . Idiocy . 12 G 3 2 1 1 IS Or summarising both series we have 132 instances of ai'achnoid cyst; 63, or 47'7 per cent., occur in general paralysis; 35, or 26-5 per cent., in chronic disorganisation of the brain; 12, or 9 per cent., in senile atrophy; 7, or 5-3 per cent., in epilepsy ; and 15, or 11 '3 percent., in several other forms of mental ailment. The site of haemorrhage is almost exclusively confined to the vertex and lateral aspects of the cerebrum ; we have never seen it on the lower aspect of the tentorium or within the cerebellar fossa of the cranium ; it is also of rare occurrence in the anterior and middle fossa? at the base. The left hemisphere is more frequently the site of the haemorrhage than the right, as indicated in the sixty-five more recent cases extracted from our records. SITE OF AKACHNOID II^MOREHAGE IN SIXTY-FIVE CASES. Both hemispheres generallj' covered above Left hemisphere ,, ,, ,, Ivight hemisphere ,, ., ,, Ilight parieto-occipital region . Right frontal region .... Anterior fossa at base .... Anterior and middle fossce 2S 20 II r> 1 1 2 The extravasation most probably occurs from a vessel of tlio pia mater, the vessels of which in general paralysis show very special lesions * Dr. Lawson's statement is to the following effect : — " Amongst the sane, amongst drunkards, and in cases where injury has induced pachj-meningitis externa, this production of arachnoid cysts by the rupture of vessels formed in inflammatory products might readily occur. . . . It is evident that at least the large majority of cases of hsBmatoma in the insane, originate in direct rupture of vessels and extravasation into the arachnoid sac." (Brit, and For. Med. Chir. Review, 1876). ADHESION OF PI A TO CORTEX. 441 forming disc of tlio most constant cliangos in this affection. The diseased condition of their tunics, which we shall allude to later on, is greatly aggravated by the repeated, violent, and long-continued out- bursts of excitement to which such cases are subject; and the vessels Avhich have undergone most change are decidedly those in the an- terior regions of the brain, coinciding with the more frequent site- of these arachnoid haemorrhages. The arteries coursing within the sulci are, of course, better protected by the support they receive, thaa the veins distributed over the exposed surface of the gyri ; at th® summits of the gyri there is evidence of inflammatory activity, well marked in the presence of meningeal adhesions. The Avascular net- work supported by the pia at these sites is most affected by the morbid changes taking place, and hence, the venules are kept in a state of continuous engorgement near the site where they empty into the larger veins running to the sinuses, a condition further aggravated by the active arterial flow of functional excitement. Thus, in our opinion, the occurrence of at least a large proportion of these forma- tions is explained as due to : — • (rt.) The initial diseased condition of the vascular tunics. (b.) The distended condition of the venous system from atrophyj. and consequent loss of support, and obstructive conditions due ta inflammatory change. (c.) The anatomical arrangement of the veins, involving them in the- most pronounced inflammatory change. We have alluded to the evidence of congestive and chronic inflam- matory conditions presented in the notable opacity, with thickening of the soft membranes, the presence of efi"vised lymph, and, we might add, the somewhat rare condition of purulent infiltration of the membranes at the vertex in certain forms of insanity. To these we must add, as indubitable evidence of inflammatory activity in the cortex and its- investing membranes (chronic meningo-cerebritis), the frequency of morbid adhesions between these structures. Such morbid adhesions occur in chronic insanity, in chronic mania, in senile mania, occasion- ally in alcoholic insanity, and especially in the mental derangement associated with traumatism. It is, however, in general paralysis of the insane that this condition forms so important a feature as to constitute the one distinctive sign indicative of this disease to the }iathologist. In a small percentage of cases only is this important sign absent ; but in such exceiDtional forms other indications are sufiiciently expressive of the nature of the diseased process. We shall describe in detail the morbid process as it occurs when dealing with the special pathology of general paralysis. For the present Ave haA-e to deal Avith the general features presented by such adhesions in this 442 THE MOKBID DRAIN IX INSANITY. and othei- forms of mental disease. I find from Dr. Bullen's statistical compilation from our West Riding Asylum llecords, that out of 1,5G5 fatal cases of insanity, morbid adhesions betwixt brain-cortex and in- vesting membranes had been contracted in 340 instances, or 21*7 per cent, of the whole ; whereas in a former study of general paralysis, some years back, we found that in 241 cases of this disease which had proved fatal, ISG (or over 77'1 jier cent.) presented well-marked adhesions, the remaining fifty-five (or 22-8 per cent.) being described as free from, such implication. We must, however, be prepared to meet with cases where it may be dubious how far we should regard the connection as amounting to a morbid adhesion ; but in our statistical results above recorded, we include only such instances where the removal of the membranes necessitates a teariivj-away of the superficial cortex. Undoubtedly, many other cases of morbid firmness of union present themselves, which, therefore, escape from this category ; and this was the case in many of the 22-8 per cent, in which genuine adhesions were excluded. The brain of the alcoholic presents instances of this morbid firmness of union; and, histologically, this is attested to in the presence of the same morbid elements which are found so profusely scattered thi'ough the cortex in genuine cases of adhesion ; but we do not find in the alcoholic's brain, as a rule, anything more than this undue firmness of union. On attempting to strip ofi:" a portion of adherent membrane, there are seen by the naked-eye numerous tough fibrous prolongations, which look like enlarged blood-vessels, connecting the under-surface of the pia with the cortex of the brain. W^hen forcibly removed, the upper layers peel away to varying depths upon the pia, leaving an ei'oded surface which presents a highly characteristic aspect. The surface looks gnawed or worm-eaten along the length of the gyri with irregular sinuous margins, so that it somewhat resembles the aspect pre- sented by a succulent leaf which has been attacked by a caterpillar. The base of the eroded (or rather, torn) surface is distinctly punctated by large open orifices from which coarse vessels have been withdrawn. Adhesions of some age exhibit a coarse dense fibrillar connection betwixt pia and cortex ; the normally delicate retiform aspect of the neuroglia is lost in the coarse fibrillation which has ensued. In earlier stages the appearance is suggestive of inflammatory implication, in the distinctly-pinkish appearance of the cortex, sometimes difi'used, some- times limited to the areas of recent adhesions ; the pia is thickened and tumid, the seat of nuclear proliferation, its vessels deeply engorged and the superjacent arachnoid also thickened, opaque, and cedematous. The distended vessels are coarse and tortuous, their sheaths thickened hy multiplication of their cells and the traversing of their structure by MORBID VASCULARITY OF THE CORTEX. 443 wandering leucocytes. The microsco[)e reveals infiltration of the cortex by large numbers of peculiar spider-like cells — oval, Hask-shaped or globose — but all throwing ofl" numerous delicate fibrillar processes which entwine upon the vascular walls and meander amongst the nerve- elements of the cortex. Such spider-like cells are found in all recent adhesions in the upper layex'S of the cortex, immediately beneath the adherent pia, forming a direct connection with its under surface and the vessels passing from it into the substance of the Itrain. Around the vralls of the blood-vessels these elements tend especially to crowd, and their ramifying extensions will, probably, by subsequent contraction, seriously interfere with the permeability of these channels of nutrierd supply. The prominent role assumed by these organisms in general paralysis of the insane, the frequency with which they are seen, and their very striking features, induced certain obseiwers to regard them as pathognomonic of this disease. We had, however, some years previously indicated and sketched their appearance in senile atrophy of the brain {PI. :KN.,fig. 1), and had recognised their existence in other morbid conditions;* in fact, they represent a hypertrophied state of what in our section of the normal histology of the cortex we have described as its "lymph-connective" system. The reason why these morbid conditions are not more frequently seen in senile atrophy and other pathological states of the brain is that the stage in which they are formed is an early stage of the disease, a stage which in most fatal cases has long since passed by; the organisms have succumbed to a fatty liquefaction and so been removed from observa- tion. General paralysis, however, is a comparatively rapid process of dissolution, and intercurrent affections often prove fatal, and afibrd us illustrations of its morbid anatomy in early stages ; hence these morbid appearances are frequently met with, yet not constantly, for, at an advanced stage of this affection also, the morbid cells degenerate and disappear, leaving their fibrous meshworks as their sole representative. In chronic alcoholism, again, such products of morbid activity pi-esent themselves, frequently in great abundance, but never, in our experience, to the extreme degrees met with in certain cases of senile atrophy and general paralysis. In fact, it is our opinion, based upon a large number of observations, that where a specially irritative process is engendered in the cortex, and more especially where a large accumulation of degenerative material has to be carried off from this region, or where eS'ete material accumulates as the result of some obstruction to the normal transit of lymph from the brain, there we are likely to meet with these vast developments of " spider-cells," as they have been termed. Hence in a chronic meningO-CerebritiS, attended by much * Proc. noy. Soc, Ko. 182, 1S77. 444 THE MORBID BRAIX IN INSANITY. effusion into the vascular sheath, by extravasations into the brain- substance, and by the varied products of inflammatory engorgement of the part, this " lymph-connective system " of the neuroglia (as we have ventured to term it) undergoes the functional hypertrophy here alluded to, in an extreme degree. Again, in the later stages of senile degeneration, the fatty atrophy of texture has advanced to so extreme a degree, usually during a very prolonged course of many years, that the surface of the cortex is widely severed from the membranes overlying it by the compensatory accumulation of fluid ; any delicate adhesions which had been formed in early stages have been softened and broken down. The membranes are not thickened to the same extent as in general paralysis, where they often form a dense, thick, felt-like structure which fully occupies the space formed by the recession of the atrophic brain. The physical conditions, therefore, as well as the more rapid course of the one compared with the other, have probably much to do with the presence or absence of adherent membranes. We must, however, not omit the fact, that the tearing of the cortex is, to a certain extent, also due to the softening of the outer layers of the cortex by the inflammatory process: but this alone by no means accounts for the appearances, since the condition observed on removing the membranes in a brain simply softened by decomposition, or from those regions always exces- sively soft, at the basal aspect of the cerebrum, in no way reproduces the appearance of the eroded cortex in general paralysis. The brain-substance, both grey and white, in fatal cases of insanity is found in a very variable condition of vascularity dependent frequently upon wholly-extrinsic agencies and accidental states, which are completely foreign to the cerebral disturbance existing during life. We must remember the peculiarities of the vascular mechanism we are dealing with, which explain to a great extent the variations noticed. The pia mater is a Avondrously vascular meshwork, capable of an enormous degree of distension and venous engorgement, as we some- times see to an astonishing extent in obstructions to the return of venous blood to the heart, in cases of intra-thoracic pressure. It serves the purpose of bringing into immediate contact with the surface of the brain a very large amount of venous blood ; the carriers of which are so disposed as to offer a direct mechanical disadvantage to the return of venous blood from the cranial cavity — the current of blood in the large cerebral veins being opposed to that of the current in the sinuses by their oblique direction and opening into the sinuses from behind forwards. Thus, whilst in the veins of the lower extremities, special facilities (such as their valves) are introduced to favour the circulation in its return, the intracranial veins have a direct obstruction offered MORBID VASCULARITY OF THE CORTKX. 445 to the too speedy flow towards the heart ; an obstruction which even leads to a hypertrophic state of the tissues in this immediate neigh- bourhood.* The venous blood in this vascular membrane and system of sinuses serves the purpose of keeping up a sustained backward pressure upon the cortical venules, and thus effectually provides for the continued patency of the minute vessels of the cortex. It is only exceptionally that this patency is interfered with to a state of complete anfemia, when, of course, unconsciousness supervenes. Sleep is an instance of a rhythmic interference with this condition ; and the agency whereby the ansemia is produced is well illustrated in Mosso's experiments with the plethysmograph, whereby he clearly shows a well- marked dilatation of the peripheral vessels as the immediate prelude to sleep. A similar condition of things is found at the other extremity of the cerebral circulation — viz., the basilar artery. Here we find the two vertebrals taken together about double the capacity of the recipient basilar artery ; and as the result of this a sustained pressure of no inconsiderable degree is kept up in the minute nutrient arteries passing direct from it into the substance of the pons. Hence these vitally- important centres are kept continuously supplied with blood, a supply which will only be augmented as contraction in the distal cerebral branches produces ansemia in those parts. If we keep this mechanism of the venous system of the cortex in view, we at once see how variable will be the vascular appearances of the brain according to the mode of death ; the presence of obstruction in the heart and lungs to the venous circulation, and especially obstruction in the cranial sinuses, such as frequently occurs in cases of insanity. So likewise the mode of opening the body for 2^ost-7)iortem examination greatly modifies the appearance of the cortex and white matter, but especially of the soft membranes. If the cranium be opened before the thorax, the vessels will be found far more engorged than when the reverse pro- cedure is adopted, whereby opportunity is afforded for draining off the blood from the head through the large vessels so severed in the chest. As to the results of intra-thoracic pressure, we must be prepared to find engorgement of the cerebral vessels in the pia in all cases of severe * "The common thickening of the membranes over the upper surface of the brain, increasing towards the longitudinal sinus, is explicable by the mechanical congestion that must be favoured there, through the current of blood from the cerebral veins entering the longitudinal sinus against the course of the stream within the sinus. The check so caused to the entering stream will have most effect on the part of the stream that is near the vein wall, for this is weaker than the current in the middle of the vein, but this parietal layer of the stream receives the blood from the parts near the sinus, and hence these will feel the check more than the distant parts, and will tend to be held all one's life in a state of mechanical congestion of mild degree " (Lectures on Analytical Pathologij. Moxou). 446 TUB MORDID BRAIN IX INSANITY. obstruction or obliteration of the pulmonary blood-vessels — e.g., exten- sive new growths in the nicdiastiniun, copious pleuritic elFusions, con- striction from, various causes of the roots of the lungs, fibroid induration of lung, kc. Rokitansky has alluded to the extremes we occasionally meet with of this obstructive engorgement of the cerebral membranes, the vessels of which he describes as forming " spirally- twisted coils and intestine-like circonvolutions." * Nor is this any exaggeration of what we see occasionally in asylum practice. We should have said very rarely, for but three such cases have occurred in our experience of considerably over two thousand inspections. Such, for instance, was the case of an alcoholic subject suffering from fibroid indu- ration of the lung, and in whose case capillary bronchitis supervened, resulting in an extremely-stupoi'ose condition for days together. The necropsy revealed an extraordinary development of varices and con- torted vessels in the membranes actually concealing from view exten- sive areas of the brain-surface ; whilst enormous numbers of extrava- sations varying from miliary and punctiform hcemorrhages to patches from a pea to a florin in extent were scattered throughout a deeply- congested brain both in grey and white substance. f To a much less marked degree is the engorgement recognised in obstructive throm- bosis of the sinuses, for in all examples met with we have found the patency of the channel diminished only to a minor extent from firm organisation and shrinking of the clot. Death from pulmonary gangi'ene occasionally occurs as the result of such clots, or portions of such dislodged, passing by the right cavities of the heart into the pulmonary vessels. The result of contraction of a limited vascular area of the cortex upon neighbouring territories must, we opine for the present, be a moot point ; but we cannot fail to regard it as highly probable that any such limited spasm must tell in an exactly reversed vascular state of neighbouring cortical and subcortical tracts. The cortical nutrient branches form, as we have learnt from M. Duret, an absolutely-terminal (non-anastomotic) system of vessels, and (counter to the view of Heubner) the larger branches of the pia also map-out individualised and but feebly inter-communicating terri- tories. Hence, we have reason to infer that each terminal system is the representative of a neuro-vascular autonomy ; and that limited spasms of such a system, whilst raising the blood-pressure generally throughout the periphery, also cause increased flow to neighbouring cortical realms. How extremely delicate is the adjustment so aflected is obvious from the researches of Mosso, who remarked that in the * " Pathological Anatomj'," Sydenham Soc, vol. iv., pp. 372-3. t See also a similar case reported in the Lancet for January 11, 1S79, by Dr. Coupland MORBID VASCULARITY — CEREBRITIS. 447 case of his patient, when asleep, the slightest sound, such as the tick of a watch, oi' a spoken word, short of awakening the sleeper, invariably caused increased vascularity of the brain, with a corresponding fall of blood-pressure in the arm, as registered by the plethysmography Such an observation gives us a graphic illustration of what is con- tinually occurring, during the normal active processes in our conscious moments, as the mere result of sensory excitations alone. A bright red blush irregularly distributed in patches is often observed in the cortex of those dying insane, a rosy-tinted mottling, stippled here and there with the orifices of larger vessels cut across, and defining (in most cases very accurately) the limits of certain independent vascular tracts or plexuses. It is more frequently an accompaniment of the more acute forms of insanity, and we hesitate to attach to it any further importance than as indicating the severity of the late functional disturbance. Certain it is that this appearance is- not necessarily correlated with any obvious structural change in the part ; nevertheless, it is a witness to the storm which has swept past. We have suggested elsewhere* that, "the last act of arterial contraction, in which the smaller arterioles have failed to empty themselves into the venous system, may in part explain this appearance," and have also noted how " this blotchy red aspect of the cortex reappears very fi'equently in the medulla in similar cases;" and we still regard it as l^robably so explained, the failure to contract being evidence of the paretic state of the vessel, whilst the effect of limited spasms would from our former remarks be still more likely to issue in this blotchy mottling of the cortex. The same remarks apply to the rosy vascular zones which so frequently present themselves along the junction of the white and grey matter. This and the fourth layer are usually the sites of the rosy discoloration now alluded to ; and this coincides with the results of imperfect injections of the cortex, which indicate that the long" straight vessels and their horizontal nexus on the confines of the grey are the most readily filled ; next, the plexus around the cells of the fourth and fifth layers ; and lastly, the vascular plexus in the third and the first layers respectively. We have alluded to this ready filling of these straight vessels of the medulla as a sort of safety-valve action for relieving the cortex from undue engorge- ment. The rosy mottling of the medulla is again a frequent accom- paniment of the foregoing signs where such cerebral excitement has preceded death, or where epilepsy has terminated fatally in the '' status ;" and in such cases it is interesting to note the comparative paucity of puncta vasculosa which undoubtedly (as JSTiemeyer has stated) form a most unsafe criterion to accept of congested states of the * The Human Brain : Methods of Examination, p. 52, 448 THE MORIUI) BRAIN' IX INSANITY. brain.* Since, then, the appoar.ajices above detailed are occasionally the sequence of uther tlian lamhid states, how are we to deal with their significance as morbid signs 1 The reply is, in the presence of minute extravasations, in the coarseness or evident disease of the small 'vessels, in the existence of much ledema of the tissues, in the altered i':(;i;Ni';iiATioN. 465 Colloid Deg*enePation. — A very frequent lesion found in the brain of the insane; is that which has been termed " colloid degeneration," a term applied to the presence of minute round or oval bodies, from 6 //, to 12 /i in diameter, which pervade the nervous structures oc- casionally in extraordinary numbers. The frequency of its occurrence in the brain and spinal system of the insane, its undoubtedly morbid origin, and the essential nature of the lesion indicate it as one of the most important conditions for our consideration in the morbid histology of insanity. Some nine years ago we described as a frequent appearance in the nervous tissues of the insane certain peculiar morbid products, which, although tmdoubtedly derived from the medullated nerve-fibre, bore a striking resemblance to the so-called colloid bodies,* and we ventured to suggest their actual identity, but withheld any dogmatic statement of the case, until further observation had assured us that the usually I'eceived opinion of their constitution was fallacious. Repeated ob- servations since this date fully confirm our former suggestion that these morbid products have been too hastily relegated to the chapter of diseases of the connective framework or neuroglia ; and assure us, moreover, that the morbid bodies then described by us were identical in their nature with the '•' colloid " body. The name is unfortunate, since it assumes a colloid transformation of a connective cell similar to what occurs in the typical colloidal transformation of the epithelia of the thyroid gland, or the same change in the elements of new growths, and we feel convinced that in this cellular origin of the change the view is inaccurate. In size these bodies vary very considerably, from 6 to 12 ^ in diameter, up to 40 im — the former being the usual dimensions of those found in the cerebral convolutions, the latter those of the regions of large medullated fibres, such as the medulla oblongata. Dr. Batty Tuke gives their diameter at o-yVo' *° Tm)~s °^ an inch, but this clearly applies to the minute colloid bodies of the cerebral gyri ; he also notes their variability in size, quoting certain experiments of his own and Dr. M'Kendrick on the brain of pigeons, in which colloid bodies were discovered of very minute size {-^xru i^ch). As we have elsewhere stated, they vary in direct relation to the varying diameter of the medullated nerve-tracts in which they are found. In form these morbid bodies are spherical, ovoid, or pyriform, their marginal contour in later stages becoming often crenulate. They are perfectly homogeneous in structure, devoid of concentric markings, colourless and pellucid, they may become slightly tinged by hsematoxylin, but are wholly unafi"ected by carmine or aniline dyes, * "Lesions of the nervous tissues in the brain of the insane," Brain, Oct., 1879, p. 364. 30 466 TIIK MORBID HUAIX IN INSANITY. and thoy exliibit no reaction with the iodine and sulphuric acid test. A case of bulbar paralysis occurring at the West Eiding Asylum showed the lower half of the medulla to be the site of this lesion to such an extent, that its sections under a low power appeared as if besprinkled by thousands of minute droplets, and yet to the naked eye no abnormal appearance presented itself, and the section, although pale, was uniformly and faii-ly-well stained. A glance at the accom- panying sketch [PI. viii.) will reveal the microscopic dimensions of these bodies and their wide-spread implications. Yet it will be eijually obvious how absolutely the limits of the grey matter of the medulla is respected. Thus, in the olivary bodies we observe these morbid formations wholly confined to its medullated core, and nowhere implicating its plicated grey su.bstance, except where the latter is traversed by medullated fibres ; and the same remark applies to the grey matter of the floor of the fourth ventricle, and nuclei of the cranial nerves. The following is a resume of the clinical features and pathological appearances in this case : — T. W, , aged thirty, married. He is a stone-mason, and was stated to have been insane for five months upon his admission. Two years previous to this date he was stated to have had a paralytic stroke. Five weeks prior to admission he again had a paralytic seizure (right hemiplegia), was deprived of speech, and became depressed and suicidal ; great and increasing difiiculty in degluti- tion had been noted since this second paral3'tic seizure. On admission to the asylum he was completely speechless, could only utter inarticulate sounds, or try to explain himself by gesture and pantomime. He appreciated all that was said to him, but showed considerable amnesia. When asked to write down his name he took up the pencil with his left hand first, and then, transferring it to his right, hesitated for some time as if tryuig to recall something, and then threw it down in despair. He expressed numbers by tapping successively with his finger on the table. He had been a steady man, of temperate habits. Circulatorj^ respiratory, and genito-uriuary systems appeared normal. His gait was somewhat unsteadj', but there was no inclination to one side; the grip of the right hand is much diminished, and he uses his left hand in lieu of the right ; no muscular wasting is apparent. The extremities are extremely cold, and both the feet and hands, as well as nose and cheeks, are livid ; a similar patchy lividity is seen over the whole body. He fails to whistle or spit ; cannot close his mouth, but opens it widely ; saliva constantly dribbles from the mouth ; he swallows fluid food only, and that with the greatest difiiculty, throwing his head far back and accomplishing the act only after a prolonged effort, and then with much spluttering. The tongue appears completely paralysed, lies helplessly on the floor of the mouth, and cannot be protruded or laterally displaced. Common sensibility and reflex activity appear normal and equal on both sides ; perception of temperature and electric sensibility normal ; all the affected muscles react energetically with feeble faradaic stimulation; all special senses appear normal. The pupils are dilated, the right pupil being the larger and more sluggish. For five years he remained a most anxious case for feeding, beiug in constant danger of Accessory Uiivary bodies P a r al V s i s she"wiTi^ BULBAR PARALYSIS — SIONIFICANCK OF COLLOID CHANGE. 467 choking. He had no further paralytic seizure, and died eventually of pulmonary gangrene. Summari) of Au/ojjsi/. — Bones of skull thickened and very dense ; no adhesion of dura mater ; the pia-arachnoid is opaque at the vertex, thickened, tough, and buoyed up by much serous fluid. In both hemispheres there is considerable atrophy of the convolutions, and where this wasting is extreme the cortex, after removal of the membranes, presents well-marked cauliflower [tuckering of the surface. The whole brain weighed but 990 grammes. The thickened membranes stripped with ease from all parts of the surface, except at certain sites where softening of the cortex had occurred. The softened patches were disposed with a certain degree of symmetry on both sides, thus : — Right Hemisphere. Left Hemisphere. Slight along lower third of ascending Lower half of ascending frontal. frontal. Three upper annectants and bound- Second annectant gyrus and cortex of aries of parieto-occipital sulcus. interparietal sulcus. Middle of third frontal gyrus. The patch of softening is generally of a greyish colour, translucent, and gelatini- form, its centre of bright yellow hue surrounded by a greyish translucent zone ; it is pulpy and torn upon removal of the superjacent membranes. The cauliflower puckering characterising the sites of most extreme wasting were disposed in the right hemisphere along the convolution bounding the longitudinal fissure, the middle of the second frontal and the angular gyrus ; in the left hemi- sphere it involved the postero-parietal, the middle of the second frontal, and a portion of the second temporo-sphenoidal convolution. Respecting the other organs of the body, the only point essential to note here (beyond the gangrenous condition of the lung) was the absence of any cardiac disease, and the presence of granular and wasted kidneys, somewhat extreme in both instances. In the brain, also, we find these bodies encroach upon the grey matter only exceptionally, and then invariably along the direction taken by the large medullated tracts (the tang'ential fibres of the periphePal zone more especially), and more rarely the intraCOrtical arcifOPm fibres {PI- ix., figs. 1, 2). We have already alluded to the same limi- tation as regulating the distribution of the " miliary" patches. No theory of the connective origin of these morbid formations could account for this peculiar restriction. Reverting to the case of bulbar paralysis [PI. viii.), we find, these morbid products especially large and suitable for study along the fibres of the median raphe, the emergent root-fibres of the hypoglossal, and the arciform fibres near the raphe posteriorly. In these positions they lie either superimposed to the medullated fasciculi, or are crossed superficially by others ; but, when- ever their conformation assumes an elongate outline, their long diameter takes the direction of the medullated fasciculus lying parallel to the fibres. In many instances they are distinctly seen 468 THE MORBID BKAIN IN' INSANITY. to be an oval swelling aloug tlie course of the medullated fibre, and the axis-cylinder can be traced through the centre of the swelling; in other instances a pyriforni body presents itself, the narrow end of which is directly continuous with a swollen and deeply-stained axis- cylinder; or, again, a subglobose body, from the two poles of which the medullated axis is continued (although not traceable) within its structui-e. Some of the largest examples of the elliptic form attain the dimensions of 55 /«. by 37 /a. The presence of a nucleus within these bodies has been said to occur, giving, of course, much colour to the account of their cellular origin ; with respect to this, we stated in the article already referred to, that such bodies were always extraneous. " Occasionally a nucleus appeared on the surface or border of these bodies, but it could always be regarded as extraneous to the morbid formation and accidentally superimposed."* Our methods of preparation now enable us to considerably extend such a statement ; not only are they in all cases extraneous to the morbid swelling, but they are not free nuclei ; they are really the nuclei of spider-cells (which are found when carefully looked for) attached to most of these so-called colloid bodies {PI. vii.). So far from being, as we supposed, accidentally superimposed, they are important elements in the morbid role, their significance being identical with what has already been delineated in our description of '•' miliary sclerosis." The " colloid " body is, in its early stage, perfectly translucent and so minute that (unlike the miliary patch) it is not evident to the naked eye under reflected light (P?. x. B.); it is likewise attached, form- ing an integral part of the medullated fibre, and, hence, not removable like the miliary deposit; it is, also, a single, homogeneous body showing (of course) no stroma of fibrils through its structure ; but these difier- ences do not, we observe, indicate a distinct pathogenesis. Given certain conditions at a later stage, and the colloid bodies become opalescent or granular, swell to greater proportions, burst their albu- minous sheath and coalesce as free miliary products, appear multi- locular and have their structure permeated by the ramifying processes of scavenger spider-cells {PI. vi.. Jigs. 2, 3). The history is the same for all parts of the cerebro-spinal axis con- taining medullated fibres ; but, as before stated, the transition stages are best studied where the larger medullated fibres exist in the region of the pons, medulla, and lateral columns of the cord. That this transition from the " colloid " to the " miliary" formations had occurred in the case quoted years since by Kesteven, is to our mind conclusive. In his case the section of medulla of a patient, of whom the clinical history was unfortunately wanting, appeared under a low power to be * Loc. cit., p. 366. SIGNIFICANCE OF MILIARY AND COLLOID CIIANGK. 469 full of minute cavities or perforations, which, when examined by higher powers, were found, in many instances, filled with a fine granular substance, similar to what we have already described as found in " miliary " patches. This drawing of the morbid groupings in the medulla reproduces the appearance met with in the case of bulbar paralysis already alluded to {PI. viii.), with this exception, that in the latter case the product of morbid activity was far more profusely scattered, and the individual bodies, of course, very minute (not having coalesced into miliary patches). Mr. Kesteven observes in reference to his case : — "These cavities are irregular, scattered, without evidence of order, throughout the medulla oblongata referred to. They cannot be said to predominate specially in any one of the elements of the organ; but if they prevail at all in any part, it may perhaps be said that they are rather more numerous posteriorly than anteriorly. In one section, about the level of the calamus scriptorius, I counted several hundreds of these cavities." Again he adds :— " The surrounding textures appear to be perfectly healthy, with entire absence of any inflammatory action ; neither is there sign of disease of the blood-vessels in the surrounding tissue. The morbid change is restricted to these detached points, and it is wholly a matter of conjecture whether it commenced in the capillaries, or in nerve-tubes or cells."* Whenever this lesion appears in the spinal axis, it will be found advisable to study its nature in longitudinal sections and by the aid of aniline dyes. To summarise our results, we regard both the " miliary " and " colloid " change as representing stages in the progress of a chronic degenerative affection of the medullated fibres of the centric nervous system ; an affection which is of most frequent occurrence in the brain of the insane, and one of most vital import. A difference of opinion may exist regarding the special nature of the affection, whether it should be taken to indicate a simple degenerative change or one of chronic inflammatory irritation ; and, in fact, the same question may be asked concerning the changes resulting from section of a peripheral nerve. In the one case, as in the other, the real origin of the affection is in the severance of the fibre from its trophic cell. It is in the diseased state of the cortical nerve-cells that we must seek, in most of our cases of insanity, for an explanation of this degeneration of the nerve-fibres ; of course, any lesion causing severance betwixt the two, at any site along the fibre, will act in like manner, but the central disease in the cortical cell is usually the primary fact presented to us. The segmentation of myelin, occurring in this chronic affection, difiers in some important particulars from what we see taking place * See original article, "Notes of a Peculiar Form of ' Granular Degeneration ' observed in a Medulla Oblongata." By W. B. Kesteven. Brii. and For. Med. Chit: Rev., April, lS6t1. 470 TUE MORBID BRAIN IN INSANITY. ill degeneration from section of peripheral nerves. Thf latter is apparently a more active process, and is the result of the direct morbid activity of the cellular constituents of the nerve-fibre ; in its enlarged and dividing nucleus, and increased development of protoplasm, we recognise (as long since taught by Ranvier) the destructive agencies which bring about the segmentation and eventual destruction of the axis-cylinder and its medullary investment. In the more delicate fibres of the brain and spinal cord, segmentation of the myelin occurs more spontaneously ; and as the medulla separates into varicose nodules along the length of the fibre, it becomes less susceptible to staining by Pal's process, which, in the healthy fibre, stains the niedullated sheath of a deep purple, leaving the axis-cylinder untouched. It is then often noticed that the annular segments, although per- fectly uncoloured for the greater part by this process, yet have a slight coloured fringe around both poles, the intervening medullated connec- tion with the adjacent varicosity being normally stained and continuous with this coloured fringe. The appearance suggests an unchanged part of the medulla or its albuminous sheath at this site ; possibly remains of the ruptured sheath. We must not regard varicosity of the fibres as conclusive of a commencing degenerative change ; but when extreme varicosity of the larger medullated fibi-es is associated with their tendency to take up aniline and carmine staining, when they exhibit granular contents and clouding, and especially when apparently free granular masses with proliferating spider-cells are seen, we may be quite confident that we are dealing with a genuine degenerative change; finally, the presence of "colloid" bodies or of "miliary" patches assures us of the existence of the same condition. Such extreme conditions of " colloid degeneration " (referred to by Dr. Batty Tuke as of occasional occurrence in the white substance of the brain, in which the section looks like " a slice of cold sago- pudding ") are undoubtedly states of degenerated medullary fibres from disease of their centric cells. How far does this condition of the medullated fibre interfere with its normal conductibility or excitability'? The long persistence of the axis-cylinder probably permits a free conduction along the fibre for some time after the latter is completely denuded of its myelin sheath; and we must regard this as still possible so long as actual severance of the axis be not etfected. Such severance occurs (as we have seen) in the accidental accompaniment of "miliary sclerosis," and then sudden interruption must occur in the conductibility of the fibre; but, apart from such an occurrence the process is one of very chronic course, the denudation of tlie axis-cylinder takes place very gradually, and the latter eventually succumbs to the encroachment of the sclerous tissue. GRANULAR DEGENERATION OF NERVE-CELLS. 471 Granular Disintegration of Nerve-Cells. — The whole cell be- comes swollen, and assumes a more spherical contour ; the cell protoplasm loses its apparent homogeneity, and is clouded and obscured by the formation of granules within ; the devitalised proto- plasm no longer shows its affinity for the staining reagents, and becomes but faintly tinted by carmine or aniline dyes ; the nucleus in like manner resisting these reagents. The nucleus often retires before the degenerating mass, is thrust aside, and becomes atrophied, shrunken, angular or elongated ; moreover, the physiological pigment of the cell (usually found in a small collection at its base) becomes uniformly diffused, so that the altered granular protoplasm becomes of a yellowish tinge [PL xv[.,Jlg. 1). Meanwhile the lateral processes have become attenuated, and eventually dwindle down and wholly dis- appear; this gives the cell a still more globose aspect. In like manner, the apical process disintegrates, but the basal extension still remains, and is often notably swollen and prominent; it is seen in fresh specimens to be lai'gely denuded of its investing medulla. These degenerate cells are mostly indistinct (from the absence of active staining), and some of the larger cells of the fifth layer in the motor cortex look like the ghosts of their former selves. Many of the smaller cells are found simply represented as a small heap of granules retaining more or less the outline of the original cell; the whole of the field around is the seat of much fatty granular matter, and especially accumulated around the blood-vessels. In the case of the latter we find the perivascular spaces greatly enlarged, the sheath enclosing fatty granules and deposits of hsematine ; the vessels are usually athero- matous, and fatty disintegrating branched corpuscles are spread on their exterior. The presence of much fatty matter is revealed by the fact that fresh preparations treated for a few seconds only bv osmic acid ('25 per cent.) tend to become greatly obscured by a minute granular deposit forming over the surface of the section. The most accurate description of granular degeneration is, we think, that first recorded by Dr. H. C. Major, and certainly before his researches it had never been shown that a primary senile atrophy of the brain-cells occurred in senile dementia.* That observer also recorded similar changes in the cortex of aged animals, reproducing what he found in the human subject. Our further researches into the subject have resulted in the following observations. The early stage of granular disintegration of the cortical nerve-cells is signalised by certain remarkable features in the peripheral-zone of the cortex, immediately beneath the pia mater. Here the medullated fibres running parallel to the surface assume an extreme degree of varicosity, and active * West Biding Asylum Beporttf, vol. ii. 472 THE MORBID BRAIN IN INSANITY. degenerative changes ensue. The elements of the lymph-connective system (spider-cells) proliferate and crowd around these varicose fibres, which now become moniliform from segmentation of the myelin, so that large globose or oval bodies unstained and connected by a narrow neck constituted by the stained axis-cylinder, are seen in large numbers beneath the pia {PI. ix.,Jig. 1). The bodies from being perfectly colourless and homogeneous, become clouded and slightly granular, and a dense proliferation of the spider-cells insinuates itself between and around these degenerating fibres, their branches forming a thick meshwork of fibres in this outer zone of the cortex. As in this stage the spider-cells stain intensely with aniline-black, we get in such specimens the contrast of numbers of colourless and somewhat lustrous spheres upon a dark background of felted fibre (Fl. ix., Jig. 1). This fibrous meshwork strikes down into the first cortical layer some distance beyond the limit of the medullated tract. This — the early — stage of granular degeneration is not so often seen, we much more frequently meet with the next stage, as in subjects dying from senile atrophy. It was this early stage of granular degeneration in senile atrophy that we drew attention to some twelve years ago, in an article on the lymphatic system of the brain;* we there sketched the appearances presented in such a section, and reproduce the sketch here, since it has been assumed by some that these features were peculiar to general paralysis (/7. xv.,Jlg. 1) ; we would here insist that all cases of senile cerebral atrophy exhibit this proliferation of s])ider- cells in the earlier stage of its evolution. Not only so, but we have already sufficiently indicated that we may expect to find similar appearances whenever these medullated fibres are degenerating, what- ever be the cause. We see, therefore, reproduced in this layer of the cortex, in the fatty or granular degeneration of the nerve-cells, the so-called colloid degeneration already studied in the medulla and elsewhere. Do the same sclerotic results occur which we have traced in the latter? If this layer of the cortex be carefully examined (fresh sections) in the more advanced stage of this degenerative aSection, we discover here and there a few colloid bodies remaining ; but, in lieu of the long series of large moniliform fibres, or groups of large colloid bodies, and dense fibrous meshwork ai'ound, we find free nuclei undoubtedly arising from the spider-cells, scattered in numbers about, and each nucleus forming a centre, around which an abundance of highly refractile granules collect, which are of fatty nature (PI. xv.. Jig. 2). These clusters of fatt}'^ granules around the free nucleus represent the disintegration of the spider-cell itself, for we often observe some of * Proc. Boy. Soc, No. 182, 1877. irig/l . -1 ^.^ - v^iieratioTv of jl. tu --Lii.i .^.-'j, 3 in first layer of Cortex wiih Scaven* e^" '; ' ' - .0 Alcolmiic li ♦-©.v.',-,* »i^ ., '.P'i^-s^ i ^SOt"-. o? -^ i PIGMENTARY DEGENERATION OF NERVE- CELLS. 473 these elements full of glistening particles, and with their ramifying processes well seen lying amongst their disintegrated congeners. The blood-vessels also at this stage have their sheath laden with fatty debris and refractile granules, like those surrounding the nuclei. It can be well appreciated how, under this process of fatty liquefaction and removal, this layer of the cortex becomes rapidly atrophied ; the shrinking which occurs is apparent in the figure {PL xv., Jiffs. 1, 2). Pigrnentapy or Fuscous Deg-eneration.— The deposit of pig- ment in the nerve-cells of the grey matter of the brain and spinal cord is a constant feature in healthy states of these centres. So far from being in itself an indication of degeneration, its absence should at once make us suspicious of the integrity of the cell-unit, whilst its presence seems indicative, up to a certain point, of normal physio- logical activity. In some way, as yet not clearly understood, the presence of pigment plays an important rdle in the functional activity of the nerve-cell, and we need only refer to its abundance in the organs of special sense to emphasise this fact. We have seen in cases of granular degeneration, such as occurs in senile atrophy of the brain, that the earlier stages of decline in the functional vigour of the nerv^ cell is associated with a diminution of its natural pigment. If the dementia has been ushered in by evidence of long-continued and great excitement, as in attacks of senile mania, then we find a notable degree of pigmentation of the degenerated cell far beyond what is seen in health. Epileptic insanity and the insanity of general paralysis are of all forms of mental ailment, those most prone to excessive pigmentation, but all morbid states of the nerve-centres which are associated with excessive and frequent engorgements of their vascular apparatus lead to the production of this increase of pigment ; and thus, we find the same condition of the nerve-cell in certain cerebro-spinal tracts in severe chorea and even in so acute an affection as hydrophobia. To class this "fuscous" state with granular degeneration is we think misleading ; the latter is truly a degeneration of the cell-protoplasm and may be associated, as we have just said, with increase or decrease of the normal pigment ; the former is not truly a degeneration, but may be associated with an accompanying retrograde change in the neighbouring protoplasm, or, perhaps, may be its immedilte cause. The one fact clearly established in the history of the various psychoses is^ that, where excessive pigmentation of nerve-cells is found, it is a witness to a bygone functional hyper-activity. The large ganglionic cells of the cortex which are peculiarly prone to this excessive pigmentation offer us the best means for its illustra- tion both in normal and abnormal states. In fresh preparations 474 TIIK MOHIill) HHAIN IN INSANITY. examined straight from tin- i'lH'cziiig-iiiicrotomc, we tind at one of the inferior angles, or along the basal arc of tlie cell, ;i siiiall collection of golden yellow pigment, through which a number of daik, amorphous, minute granules are scattered ; it appears to be surrounded on all sides by protoplasm, but is quite distinct from the latter ; often it assumes a somewhat crescentic form partially encircling the nucleus. In degenera- ting cells, such as we have already referred to, the changes observed in the various stages are as follows : — First, the whole cell becomes tumid, and losing its more elliptic outline, approaches a somewhat pyriform or spheroidal contour, the pigment being notably increased in quantity. At the same time the cell-protoplasm stains of an intense depth of colour with aniline blue-black ; so deeply tinged does it become that unless subjected to the dye for an unusually short period, the whole of the unpigmented protoplasm and its contained nucleus becomes obscured [PI. xiv.). "With this intensity of staining of one por- tion, of the cell we have the pigmented portion wholly unaffected by the aniline or carmine dyes, and assuming a bright yellow or brownish- yellow tinge, and a rough granular aspect. The cell becomes still more globose in aspect, and its numerous radiating lateral offshoots (at first coarse and deeply stained) can be traced through the pigme7ited patch up to the receding protoplasm. The nucleus is deeply stained by the tisual reagents (PI. xiv.). This appears to us to be the first stage of functional hyper-activity, and we find, as constant associates with these degenerating cells, coarse, dilated blood-vessels, together with leucocytes and ha^matuidin crystals along the perivascular channels. The retraction of the unattected protoplasm carries with it the nucleus towards the apex of the cell, or draws it out eccentrically and to the side ; but at times the invasion of the pigmentary change appears at the summit of the cell when the nucleus and investing protoplasm retreat towards the base. The nucleus itself may now become pigmented in some cases, but in all it assumes eventually a more or less irregular angular contour, losing the plump, oval contour seen in fresh and healthy sections. At this juncture, also, tlie staining of the cell by aniline becomes less evident, and, with the encroachment of the ever-increasing pigmented area, faintly stained tracts or angles of protoplasm may alone remain. The radiating lateral processes dwindle down into extremely attenuated extensions and entirely disappear, the cell being devoid of all except a basal and perhaps a short apical stump ; in others, a few bristle-like projections from the sides of the cell still remain, so that it has a somewdiat spiny aspect. In this stage, whatever processes remain are but ^•ery faintly stained by reagents, or have a granular, degenerating aspect, while the pigment discoloration can often be traced far down the process from its PIflMENTARV DEOENEHATION OF XEltVK-CELLS. 475 junction with tlie cell. The jjigmentcd area appears to l^e separated from the remaining protoplasm of the cell by an investing capsule of more deeply-stained material, so that when the greater part of the cell is involved in the change, the latter appears to possess a very definite investing-wall, deeply-stained by aniline, with brownish-yellow, granular pigment within {PI. xiii.). Such a sharply-defined, indurated border gives the cell the appearance which has been described by Meynert and Lubimoff" as a "sclerosed swelling." At this period the nucleus, besides presenting an irregular contour, exhibits one or more highly-refractile spots, probably of fatty nature ; it remains always the centre around which any non-pigmented and unaflected protoplasm which is left collects. Hence many cells in an advanced stage of degeneration exhibit an eccentric nucleus surrounded by a narrow zone of stained (and hence presumably still healthy) protoplasm, delicate extensions of which can be traced as dark 'fibres running through, the investing pigmented granular cell-mass, the whole being enclosed within an irregular, distorted, dark-stained sclerous envelope. We have also often observed a sharply-defined cincture separating the healthier from the degenerate portion of the cell ; and it may always be noted that the processes which arise from the pigmented area are more degenerated than those issuing from the healthier stained segment. The individual granules seen in the pigmented mass are from 1 /A to 2 //. in diameter. The last stage is that of general shrinking of the cell, which is, however, preceded by a partial resolution of the bright yellow or dusky pigmented granules into many highly-refractile globules, more obviously fatty in nature; whilst this admixture diminishes the fuscous aspect of the cell {PI. xvi.. Jig. I; PI. xviii.). In many, a still more complete transformation is apparent ; the yellow tint wholly goes, the cell is filled by a somewhat bright, translucent colourless material, finely granular or molecular in part, and the outline of the cell is so faintly mapped-out that it may be easily overlooked. These shrunken cells are also found broken up into little heaps of colourless or faintly-pigmented disintegrated molecules {PL xv., fig. o). The granular pigment in the fresh sections is apparently unafiected by ether, by alcohol, or by both conjointly ; nor does it undergo any obvious change with caustic soda or fuming nitric acid. All such pigmented collections, in cells advanced in degeneration, show a decided darkening when treated with osmic acid (1 per cent.), and thus reveal a certain proportion of fatty constituents; whereas the pale cell, full of translucent material, shows decidedly a fatty reaction when so treated. "We have already noted that the pigmented portion takes up none of the usual dyes — carmine, luvmatoxylin, or aniline. 476 THK MORBID HRAIN IN INSANITY. To summarise briefly the changes thus undergone by the cell, we may arrange them under three periods, thus : — Period of over activity. — (1. ) Swelling of cell with increase of pigment. Dark stainingof protoplasm, nucleus, and branches. (2. ) Advancing degeneration, cell more globose ; jiroto- plasm retracting. Sclerosic investment of cell and cincture formed. Period of diminished activity. — Nucleus eccentric, deformed, fatty, with narrow encircling zone of protoplasm. Processes few ; these, as well as cell-protoplasm, faintly stained. Period of absorption. — Fatty transformation and decoloration of cell. Atrophy with shrinking or rupture into a heap of granules. During the progress of the fatty transformation, vacuolation of the cell not infrequently occurs ; and it is from this cause that it appears occasionally full of loculi, the fatty contents of which seem to have dropped out or to have been absorbed, the walls or dissepiments of the several loculi remaining rigid. Such cells present a very extraordinary appearance {Ph. xi., xiii.), and we are ignorant as to the cause which induces this transformation rather than the more usual fuscous change and atrophy. Developmental Arrest of the Nerve-Cell. — At an early phase of its history the cortical nerve-cell of the human subject is of spheroidal contour, its basal process non-medullated, and the cell itself possessed of extremely few processes. Not only so, but the cells are of small size, and are much more uniform in their dimensions throughout the depth of the cortex than in the fully- developed and adult brain. So utterly unlike are these young cells to the form ultimately assumed in the fully-developed stage, that the one cannot possibly be mistaken for the other. "When, therefore, this type of cell prevails at a later period of life, we have unanswerable testimony to its arrested development. It might, of course, be objected that such primitive cell-forms, occurring in youth and adult life, were products of a retrogressive process and not absolute proof of their arrested development ; and this view might be supposed to be streng- thened by the fact that in the granular and granulo-pigmentary degenerations already described we have reproduced inflated cell- forms, which at a certain stage possess characters strongly reminding us of the primitive cell. Such a conclusion is, however, inadmissible, since these degenerative processes are progressive, and result in the complete disintegration of the nervous elements ; since we And in these cases cells side by side in DEVELOPMENTAL ARREST OF NERVE-CELLS. 477 every stage of degenerative change ; and since, in the great majority of the cells involved, special features present themselves which are not afforded by the cells of stunted cerebral development to which we now allude. It appears to us that too little attention has been bestowed upon this important evidence of developmental arrest; we drew attention to its occurrence in certain instances of epileptic idiocy and imbecility in the year 1879,* and since this period we have had frequent oppor- tunity of verifying the observations then made. The condition to which we allude we find restricted to the con- vulsive neuroses ; hitherto we have failed to note its presence in simple forms of COng-enital defect and deaf-mutism; all the instances falling under our notice being subjects of epileptic idiocy. It is important to note, in the first place, that the cortical layers presenting this primitive type are especially the second and the third layers ; the larger ganglionic cells are usually in a state of excessive pigmentation, and even present evidence of the granular degeneration such as we usually meet with in epileptic insanity ; but, apart from this, they do not assume the characters presented by the elements of the superimposed layers, and they usually retain their normal outline. Our first glance at the cortex in the second and third layers, throuo-h a low-power objective, suggests to the mind a staining of the nuclear elements only, the faint delineation of the cell escaping attention ; but it soon becomes obvious on more careful search that the nerve-cells are there in apparently undiminished numbers, but the majority completely- unaffected by the staining reagent employed. Their appearance is made obvious, in fact, by the presence of pigmented (or else colour- less, but translucent and often highly-refractile) contents which com- pletely Jill the cell. We have alluded to these cells as spheroidal, and in many instances such is the case; but, perhaps, the slightly-pyriform contour pre- dominates. They resemble, in fact, a number of delicate, yellow, pear-shaped bladders suspended by a stalk — the stalk being the faintly- stained apex process, whilst, at the junction of the latter with the cell, the well-stained nucleus presents itself. The only elements which stain normally with the aniline dye are the large cells of the fifth layer, and these (as before stated) are often degenerated. With greater amplification the cell-contents are found to be granular throughout— not as in the degenerative change previously described, such as exists in senile atrophy, limited to one portion of the cell, and contrasting strongly with the stained protoplasm elsewhere, but * Brain, Oct., 1S79, p. 371. 478 TirK MOHini) iii;Ai\ in insanity. unifoTinhj and coarsely granular, i-esolved Ijy high jiowers into oval or spherical bodies usually 2 /x to 4 /x in diameter. Such granules are often highly refractile and quite colourless, but usually are pigmented of a bright yellow tint. Certain cells exhibit a faint staining between these granular bodies, giving it a somewhat reticulated aspect ; this undou1>tedly indicates the existence of the original protoplasmic groundwork of the cell unaffected by pigmentary or fatty change, and, in some instances, a somewhat dark-stained border surrounds the cell, forming a well-detined outline — this is, however, exceptional. The eccentricity of the nucleus is a notable feature, its usual position being at the junction of the apex-pi'ocess with the cell, but it is occa- sionally appressed and flattened against the sides of the cell ; it is of fair proportionate size in most cells, is deeply stained by aniline, and often presents one or more refractile spots in its interior. The branches radiating from these cells always stain very feebly, are very delicate and attenuated, and the paucity of branches is one of the most notable features of the cell ; in the greater number of instances the apex- process is alone detected. Most cells show only two divergent branches near the inferior pole, whilst it is rare to meet with four or five pro- cesses. We may thus summarise the features presented by these nerve-cells of the upper layers of the cortex : — (a.) Spheroidal or pyriform contour of cells. (6.) Marked eccentricity of nucleus, usually apical in position. (c.) Coarse granular condition of contents. (c^.) Pigmentation universal, or indications of a fatty change of protoplasm. (e.) Great paucity of branches. (/. ) Peculiar characters far most mai'ked in cells of second and third layers. We have, therefore, in the upper cellular zones of the cortex in these cases of mental defect associated with epilepsy : — 1. The primitive type of cell reproduced as regards contour and branching ; 2. But stamped of a deg'CnePate type by the granulo-pigmentary or fatty condition of its contents. It would seem to us that the latter condition is not an active degeneration, but rather the natural state of a degenerate type of cell, as it does not proceed to the rapid disintegration of cell-structure which pertains to the ordinary granular and "fuscous " degenerations of later life ; and, as we have seen, it is not at any time found as a partial, but as a universal, condition of the cell-structure. In epileptic insanity where the epilepsy is acquired at puberty or at adult age, how- ever frequent and severe the convulsive seizures, however long-standing VACUOLATION OF NKHVE-CELLS. 479 such phenomena have been, we never find reproduced the appearances above detailed. However advanced the "fuscous " or granular chan^'e, we find the degenerating cells, if once they have acquired their normal developmental characters, show indications of the mature type to the very end ; and, hence, we can in no way consider the very peculiar conformation of these cells in epileptic idiocy to be the outcome of a primary degeneration. We shall again allude to these stunted globose cells when dealing with epileptic insanity, VaCUOlation of Nerve-Cells.— This change consists in the ap- pearance within the nerve-cell of oval or perfectly-spheroidal bodies, of high refractile power quite unaffected by any staining reagent, colourless but lustrous. In many cases the lustrous, refractile quality may be wanting, and it is then evident that the spheroidal outline is that of a genuine caviti/ or vacuole, from which the former contents have been removed, or escaped by rupture ; that such rupture of the cell does occur is sufficiently evident in the case of certain elements where an incomplete vacuole is apparent along the border of the nerve- cell, which is interrupted here by a wide opening leading into the cavity of the vacuole. There may be but one such vacuole formed in the cell-protoplasm, but we frequently find many such within each cell ; and, in extreme cases, they crowd the interior so as to present the very remarkable appearance indicated in the accompanying fio-ure, where the outlines of eighteen vacuoles were seen in a single large multi- polar cell. The removal of the contents of such vacuoles may be effected by reagents, by the methods of preparation of the section, and, as we believe, by direct absorption during life through the agency of the lymph-connective system. However removed, it is evident that the original cavity maintains its former contour, and is never encroached upon by the protoplasm surrounding it ; and in such cases where the cavity has opened up on the outer surface of the cell no retraction of the protoplasm occurs, but the contour is rigidly pre- served. The protoplasm surrounding the vacuoles is more or less in a state of granular degeneration, faintly stained, or pigmented and fuscous. This association of vacuolation and granular degeneration is invariable (PL xiii.) ; yet the vacuoles are often immediately in contact with unaffected protoplasm which assumes a deep-stained tint, and still further aids in bringing thetu into relief Tlie nucleus of the cell may be concealed from view or really absent ; usually it is con- siderably displaced. The aspect of many of these degenerated cells is suggestive of encapsulation, through the formation of an outer deli- cate investing pellicle of devitalised protoplasm (see lower three cells in PI. xiii.). The granular degeneration and the resultintr vacuolation and feeble staining of nerve-cells indicate a fatty chancre 480 TiiK MOinni) huain in insanity. in the cell-protoplasm, and the separation of the fatty matter which fills the vacuole can, as is now well known, be artificially induced ; thus in phosp/iorus poisoniny we are aware that an acute fatty degenera- tion occurs in the tissues from an increased metamorphosis of albumen, but chiefly from interference with the oxidation of the tissues, and, hence, the accumulation of fat within the cell. This is mainly due to the destruction of the oxygen-carriers — the red blood-corpuscles — induced by phosphorus* ( Voit and Bauer). This rapid splitting-up of the protoplasm of the cell, and the accumulation of fat within its struc- ture, is equally induced in the nerve-cells ; and the experiments of Voit and Bauer have been repeated upon dogs and rabbits by Popow, Danilo, Kreyssig, and Flesch, with results which indicate that phosphorus and arsenic apparently induce a granular degeneration and vacuolation of the ganglion cells of the spinal cord. Flesch, however, and, later on, Trzebinski, have questioned the conclusions arrived at by other authorities, and would assign the vacuolation to an alteration induced by chrome reagents. The latter emphatically asserts that in fresh preparations examined by him the change was never witnessed.t We have on the contrary not only constantly met with vacuolated cells in fresh frozen-sections of certain subjects of insanity, but the most ex- tensive instance of this degenerative change we have seen, and which we have figured in Plate xii., was treated entirely by fresh methods (sections from frozen brain being stained with aniline blue black). We are, therefore, assured that Flesch is certainly premature in the conclusion arrived at, viz., that vacuolation is not met with in nervous tissues examined fresh, but is presumably induced by hardening reagents. Trzebinski's researches indicate that these changes may be imitated by the use of chrome reagents in healthy tissues ; but they do not prove the artificial nature of these changes in diseased nervous centres, since we repeatedly meet with these vacuolated cells in onv frozen- sections of brain. The vacuolation is, as before stated, always associated with the granular degeneration, although the latter may frequently be found to afl^brd no instances of vacuolation. We meet, therefore, with this change in the cell in senile cerebral atrophy, and it is by no means an infrequent condition in the insanity of chronic alcoholism. In both cases we must attribute it to the accumulation of hydrocarbon in the tissues from defective oxidation, which is the invax'iable sequel to old ace, and to excessive indulgence in alcohol. Vacuolation of Nucleus. — The former condition is usually con- * Zeitschrift filr Bioloijie, vii., Voit and Bauer. \ Arch, fur Path. Anal. u. Physiol, u. fiir Klin. Med., Bd. cvii., H.I. or an abstract of the paper by Dr. Ernest Birt in Brain. ^■V x' \ .... •: A. ■..^ J" VACUOLATION OF NUCLEUS. 481 fined to the nerve-cell, the nucleus not necessarily being implicated in like manner ; and it is a feature more common in the large ganglionic cells of the spinal cord or the motor area of the cortex of the brain, than in the cells of the posterior cornua, or of the superjacent layers of the cortex ; at all times they are more prominent and obtrusive appearances in the former positions. The nucleus-change, however, is one peculiarly common to the smaller cells of the upper layers of the cortex ; and, in fact, is often limited to the second layer— the small angular cells, fringing externally the small pyramidal elements of the third layer. It is exceptional to find so notable and so extensive a change as that represented in PI. xii. On referring to that drawing, we observe that almost every cell is vacuolated ; some containing several vacuoles, and most presenting unnatural, distorted outlines as the result of the change undergone. It will also be observed that the nucleus is, in the univacuolated cells, the primary seat of disease ; so that in many cases the whole nucleus is represented by a spherical vacuole, and the cell, in lieu of its dark-stained centre, shows an unstained bright spheroid surrounded by the stained protoplasm of the cell. Early indications of this change are revealed by a minute oily droplet in the centre of the nucleus ; such droplets multiply and progressively enlarge, until, no longer coalescing in the nucleus, they become free within the cell-protoplasm, which is also found in a state of granular degeneration (^Pl. xii.). The change as peculiarly confined to the nucleus in early stages, will be more carefully considered in our section on the pathology of the insanity of epilepsy, as it is in this and certain other convulsive afi"ections that we meet with it as a very notable and uniform change. It may at first appear an unnecessary refinement to distinguish between the vacuolation of cell and of nucleus as we have here done ; both are indications of a fatty change finally producing the self-same dis- integration. It is, however, important that such a distinction be drawn, since the site of lesion in both instances appears to us to indicate a wholly dissimilar origin. The fatty disintegration and vacuolation of the large ganglionic cells appear to be induced by changes in the blood-corpuscles leading to defective oxygenation, by chronic pulmonary afiections acting in the same way, by the efi'ects of certain poisons (arsenic, phosphorus) or any of the many circum- stances which restrict the supply of oxygen to the tissues ; the effect is a general one, but those elements in the cortex naturally suffer earliest and most severely whose nutrition is carried on at greatest disadvantage. This is peculiarly the case with all the large-sized cells of the cortex, whose bulk and greater distance from the arterial twigs is inimical to rapid restoration of nutritive equilibrium, as long since 31 482 TIIK MORBID BRAIN IN INSANITY. indicated by Dr. Ro.ss.* These large cells, therefore, are the first to succumb to fatty change induced by any general effect restricting oxidation. When, however, we meet with a special layer of the cortex, and more especially of its smallest nerve-elements so affiected, the same explanation is not valid ; we cannot imagine these minute elements suffei'ing so extensively, whilst the larger escape from any wide- spread defect in oxygenation. We can only here presume that the change induced is indicative of an intrbisic morbid factor in tJie cell itself, or of its immediate structural connections. Hence we regard the changes found in senile atrophy of the brain-cell as having an entirely different significance to those found in epilepsy and iu chronic alcoholic insanity ; in the latter we do not look for a cause of the degenerative change in the blood or vascular apparatus, but in some primary condition of the nervous arrangements in themselves. Destruction of Nerve-Fibre Plexus. — In cases of chronic insanity, and especially where atrophy is a prominent feature in the cerebral hemispheres, the fresh cortex obtained by freezing, and stained by aniline blue-black, shows highly-characteristic appear- ances. In healthy brain a clear differentiation of the nervous elements, the cell and nerve-fibre plexus, prevails, when fresh sections are so • treated ; they appear darkly-stained, and imbedded in a clear, un- stained matrix, in which connective nuclei and meandering vessels are less obviously defined. In the chronic atrophic diseases of the cortex associated with insanity the aspect is very different. Here we find much diffusiveneSS of staining, the matrix being uniformly -affected by the aniline, or exhibiting a patchy mottling of a deep aniline tint separated by perfectly light or faintly-tinted areas. In consequence of this diffuse staining of the matrix, which often approaches the depth of tint assumed by the nerve-cell, the differen- tiation of the latter is greatly impaired ; and we have known these specimens thrown aside as badly-prepared sections, the blurred and indistinct elements being regarded as failures in staining rather than the results of morbid change. In all advanced cases the uniform diffusiveness of staining is much intensified by the degenerative changes proceeding in the nerve-cell and its network of branches ; but, it is important to note, that the former long survives the latter as an essential though diseased element in the cortex. It is the fibre-plexus formed by the radiating processes (not the primary but the secondary) which are earliest implicated, and we frequently note their almost entire absence from the field, whilst the degenerate cell remains in various stages of decay. * Diseases of ilte Nervous System, vol. i. DESTRUCTION OF NERVE-FIBRE PLEXUS. 483 In cases of secondary dementia, we always note the appearances now detailed, especially in the anterior sections of the hemispheres ; there is the great paucity of cell-processes, the patchy mottling of the intercellular areas of the matrix, an increase in nuclei, and the field strewn with the faintly-stained, indefinite, blurred outline of degener- ating nerve-cells. The patchy mottling, on closer examination, resolves itself into the fine fibrillar meshwork which originates from the scavenger-elements (spider-cells), and which has replaced the non- medullated meshwork intervening between the nerve-cells : but partly into coarser patches resulting from the disintegrated nerve-cells, which have entirely lost all semblance of their former outline, or being well-defined in their lower half, become indistinct above, and fade ofi" imperceptibly into the surrounding matrix; or they may have attached to them a few shrunken nuclei as sole representatives of the spider- cells which attacked them at an earlier stage. The fact last alluded to is important. It must be borne in mind that these destructive elements have but a transient period of exist- ence, and the more actively they play the part of scavengers on the neighbouring tissue, the more rapidly (we may assume) do they fibrillate and lose their cellular constitution, passing in this stage through a fatty transformation like the nerve-cell {PI. xv.. Jig. 2). In advanced instances of this interstitial atrophy, we consequently may find few, if any, of these characteristic organisms present them- selves ; but the resulting fibrillar meshwork is always perceptible. The fatty change of these tissue-elements involves considerable dis- coloration by the use of osmic acid, which is requisite in the fresh process of examination, and it therefore becomes imperative that a very dilute solution of the reagent be employed, unless the firmness of tissue permits of its being entirely dispensed with ; if the usual •5 per cent, solution be employed, great obscuration of the tissue- elements may result. The delicate, unprotected processes of the intercellular nerve-plexus lend themselves most readily to the ravages of the scavenger-cells ; they succumb sooner than the apex-process, the cell itself, and the basal axis-cylinder process, which persist latest [PL x.y.,Jig. 1). Hence, as we shall find in most instances of secondary dementia, it is this plexus which is earliest and most exposed to decay, and from it issues that interstitial atrophy which progressively advances to the termina- tion of the case ; it is a destruction of tissue which can never be replaced. A due estimate of the nerve-cell as the elementary unit of the nervous mechanism is now universally recognised as essential to an intelligent appreciation of the phenomena of cerebral activity, whether 484 THE MOIiBID 15KAIN IN INSANITY. from the physiological or pathological standpoint. That the absence of the elaborate cell-mechanisms of the cortex, and their imagined replacement by a perfectly homogeneous structureless matrix in which the nerve-fibres lost themselves, would introduce into our problems in the present state of physiological science, inextricable confusion, is self- evident ; since the phenomena of functional differentiation would then remain to us a profound mystery, and the simplest correlations of mind would await an explanation. If for these reasons only, we may safely exalt the nerve-cell to a position of the very highest importance in our problems of mind. It is on this account highly important that the nerve-cell of the cerebral cortex should be the subject of careful study by all interested in psychological medicine ; and that due attention should be paid to the conditioning of its functional activities, and to the results of its nutritional impairment, disease and death. In our chapter on the histology of the cortex, we have dwelt sufficiently upon this structural unit in its relationships to the sur- rounding elements, to indicate the intricacy and delicate adjustment established betwixt it and its physiological environment. Suspended within a sac in direct connection with the lymph-channels surrounding the blood-vessels — or rather its own special nutrient capillary — the nerve-cell becomes liable to any influence, however trivial, disturbing the blood-stream in its neighbourhood {PL v.). A quickened circulation, a retarded flow, an ansemic state of cortex must influence the functional activity of these centres of feeling and thought ; a vitiated quality of the blood, or the presence of toxic agents introduced from without, or elaborated within, the economy will all affect them in a greater or less degree ; whilst the activity of the lymph-connective system in the removal of the effete products of functional wear and tear, will play an all-important role in the same direction. That delicate system of lymph-COnnective elements, to which we have alluded as permeating (in the normal state) the whole of the cerebral mass of white and grey substance, takes a more active share in the pathogenesis of mental decadence than any other : and the more the question is investigated, the greater importance, we feel con- vinced, will be attached to these elements in the processes of disease as afiecting the nervous centres. Their physiolog'ical indications are clear; they are the SCaveng'ePS Of the brain; and the evidence obtainable renders it now incontrovertible that they are liable to exces- sive and rapid development under certain morbid conditions affecting cerebral nutrition and repair. In the normal condition of healthy cerebration these elements, far from being obtrusively present, are so delicate and pellucid that they often escape detection ; but that TISSUE-DEGRADATION AND OVER-STRAIN. 485 they are universally present can be readily verified by special methods of examination. Whatever leads to increased waste of cerebral neurine ; whenever structural disinteg'ration is slowly proceeding either in nerve- cell or fibre ; whenever accumulation of debris occurs from disease of the vascular tracts, then we invariably note an augmented activity registered in these SCaveng-er-elementS of the brain. That their activity is in direct ratio to the functional activity of the essential neurine tissue, we think there can be no doubt ; nor that with each accession of the nerve-tide they are stimulated to increased activity in the removal of the products of waste and the plasma effused from the vessels. In healthy states, however, they never assume the hyper- trophied form, the deep staining, the coarse fibrillation, the rapid multiplication, and the evidence of obvious intracellular digestion, which are so readily observed in pathological states {PL xvii.). Tissue-Degradation from Over-strain.— In certain pathological states, notably in general paralysis, we shall find that these organisms play an all-important part, and are most prominent factors in the morbid process; but, we desire here to draw attention to their connection with certain states on the very borderland of pathology, viz., instances of " over-strain," where cerebral activity has been too long or too intensely encouraged, and mental tension has been associated with worrying and distracting circumstances. In such cases, as aU of us are aware, there is a risk of permanent damage, and most of us are acquainted with instances of such. That sustained mental work indulged in by the healthiest subjects, yet with disregard to physio- logical laws, will reach (if persisted in) a limit where the pathological barrier is passed, is undoubtedly true ; but, that the introduction of the element of worry, interfering with the smooth current of intellectual work, has a specially vicious influence in this direction is a fact of such far-reaching consequences, that it cannot be too forcibly, or too often, insisted upon. No amount of rest from mental labour, no change of circumstances, nor absence of all disturbing agencies will, in the cases we refer to, restore the mental faculties to their former vigour ; it would seem that an actual destruction of tissue has occurred as completely as if excised by the scalpel, and that restitution to the former state is impossible. We believe that in such instances an actual degenei-ation of cerebral-tissue has been entailed, that the lymph-connective system has received just such a stimulus beyond the physiological limits necessary to ordinary repair, that these physiological units become pathological factors, and the nervous elements themselves succumb to their rapacity. 486 THE MORBID BRAIN IN INSANITY. Tissue-Deg-padation from Active Patholog'ical Processes.— In consecutive dementia fullowing upon acute insanity, we have evidence tliat what we have portrayed above occurs to a very wide extent in the cortex of the cerebrum. That it occurs in a minor degree in all attacks of mania and acute melancholia is also very probable, judging from the almost invariable signs of instability, and slight enfeeblement of potential nerve-energy in most apparent re- coveries ; but for consecutive dementia the actual fact stands out as a prominent and highly-significant feature, that there is very obvious destruction of the nerve-fibre plexus of the coi'tex, and that the intercellular elements have degraded in type to the purely connective, or have undergone fatty disintegration and removal. We regard the appearances presented by such cases (already described, p. 482) as indications of the storm which overswept the region, and as evidence of repeated engorgement of the cortical vessels attendant upon the hyper-activity of the nerve-elements. We see in such instances the coarse and tortuous blood-vessels, the frequent minute extravasations and deposits of hsematoidine in their neighbourhood, and other changes incideiit to bygone attacks of excitement ; but, in the presence of the spider-cells and the degraded type of tissue, we see an actively-destructive agency at work, which has, therefore, a very different significance to the vascular changes associated therewith. In no case of acute uncomplicated mania or melancholia, fatal in early days, have we met with these organisms as pathological factors ; it would seem that the normal elements play their part as tissue- scavengers, with a fair promise of success up to a certain limit of time. In fact, the duration of the excitement is of primary importance in the elaboration of these morbid factors ; this we shall have occasion to see again and again in our clinical studies of insanity, where the time-element is of such great moment that it is customary to assume (arbitrarily of course, for many exceptions occur) that cases of mania of over twelve months' duration may be relegated to the chronic class of the insane. There is, indeed, but little doubt that ' beyond a certain period, varying for each individual's neurotic resist- ance (whether it be within or beyond twelve months' duration of mental excitement), these elements multiply and take up a pathological role, preying upon the tissues whose functional integrity in health they subserve. Another factor should, however, be taken into account in this con- nection, viz.. Age. The tendency in advancing age is towards a multiplication or overgrowth of these elements, so that in senile dementia (as we shall see) they form the natural associates of the atro- phic changes which accompany the decadence of mind. This tendency TISSUE-DEGRADATION FROM DISUSE. 487 is, therefore, emphasised in all acute insanities occurring in advancing years; and we may regard age as an important element in determin- ing the consecutive dementia resulting from all forms of insanity. Tissue-Deg"Padation from Disuse.— The process we have been considering is one of genuine degradation of tissue preceded by over- stimulation of cortical areas ; but, a degradation in type may also be slowly induced (according to well-known physiological principles) by lowered functional activity or disuSG. The atrophic changes then resultant are induced through the agency of the same scavengez-- elements which remove the degenerating tissues and replace them by their own fibrillated stroma. We are thus inclined to explain the profusion of these spider-elements in the cortex of most domesticated animals, notably in the sheep and in the tame rabbit. In the former, the pia is firmly attached to the surface of the brain by these elements, and requires considerable force for its removal ; in the latter, sections through the cortex exhibit them in great abundance in the peripheral zone. Similarly they are to be noted in the cat, dog, ox, and monkey in varying degrees. Sir J. Crichton-Browne has called attention to the disparity in weight between the brain of certain wild and domesti- cated animals, taking as a forcible illustration the reduced weight of the brain of the tame, domesticated duck as contrasted with that of its wild representative. The decadence from disuse of certain faculties essential in the wild state is thus actually expressed in weight, and we might infer that in all alike a degradation of tissue initiates such atrophic changes. In man a similar change suggests itself as occur- ring in those instances where a long life of unusual mental and bodily activity has been suddenly interrupted by circumstances which restrict within an extremely limited range his further activities; in such instances, how frequently do we date the first evidence of mental decadence from the cessation of the customary active life of the individual. The preference to "die in harness, rather than rust" is a trite saying, dictated by a full appreciation of the physiological principle of the decline of faculties with their disuse. Since then, these lymph-connective elements play so important a rtle in the degenerations of cerebral tissues in mental disease, it becomes an interesting question to inquire how far their pathological development may reveal itself to the naked-eye examination of the morbid brain 1 The presence of unnatural attachments betwixt the pia-arachnoid and subjacent cortex as morbid adhesion is conclusive evidence of the presence of these pathological elements ; even undue firmness of connection, apart from actual adhesion, may indicate their presence (as we have seen, occurs in the brain of the lower animals), but their presence in the cortex already softened by an acute process, 488 THE MORBID BRAIN IN INSANITY. such as occurs in general paralysis of the insane, is accompanied by the most pronounced appearances of morbid connection. Yet, although their presence is confirmed by the morbid adhesions so affected, it by no means follows that the absence of adhesion necessarily excludes them from this site; in fact, these elements in a state of morbid proliferation in the outer zone of the cortex may be frequently seen where no suspicion of adherent membranes exists {PI. XV., fig. 2). In the latter case, their appearance is usually coincident with considerable fatty disinteg'Pation of tissue, these elements themselves succumbing to this change, and very considerable inter- stitial atrophy is apparent. Another indication of the ravages of these scavenger-cells is afforded by the various atrophic states presented by the cortex of the chronic insane — of course, exclusive of such atrophy as is dependent upon obviously gross lesions — apoplectic foci, softened tracts, (kc. [PI. xv.,Jig. 1). Such atrophy is always attendant upon the degradation of tissue to which we now refer, and its distribution maps out with tolerable accuracy the areas chiefly implicated by these agencies ; and, moreover, the localisa- tion of such wasted areas has an important bearing upon the history of the acute attack preceding the consecutive atrophic change. It is also a very noteworthy feature with respect to the degradations of tissue so resulting, that the peripheral zone of the cerebral cortex is far more prone to implication than deeper regions, at an early stage of the process ; eventually these elements attack the deeper layers and the medullary strands, but their destructive agency is chiefly exhausted upon the nerve-fit)Pe plexus formed by the naked, unprotected processes of the cells. The importance of this fact is at once evident when taken in connection with the prevailing view as to the autonomy of the cell and the significance of its ramifying processes ; the cell represents the sensOPy unit of mind, and the processes whereby its connection with similar units is effected represent the relational element of mind, the means whereby a change from one state of feeling to another is rendered possible. With the breaking-down of these nerve-fibre plexuses the relational element of mind progressively suffers, the intellectual vig-oup wanes ; whilst the pupely sensuous element may long hold its own. The nerve-cell itself eventually succumbs to a disintegrating process, possibly secondary to the destruction of its processes ; and (as we have already indicated, p. 483) relics of such cells, in all stages of dissolu- tion, are to be seen scattered throughout the cortex in advanced cases of consecutive dementia. The tissue-destruction is of such a nature as not to lend itself to the processes of repair ; and, in the appearances so presented, we must learn to recognise a. permanent mental enfeeblement. %K O Tr^, M 'N PATHOLOGICAL INDICATIONS — SUMMARY. 489 From the clinical and pathological aspects of acute and chronic insanity we feel justified in making the following assumptions : — (1) Acute insanity may be regarded as a very general implication of the sphere of mind, and hence of a wide-spread disturbance of the cerebral cortex. (2) Its operation is decidedly concentred upon the motOP or fponto-parietal section of the hemispheres, judging from the dis- position of morbid appearances and the resultant atrophy of the secondary dementia. (3) That in certain forms of mental derangement (the fulminating^ psychoses as they may be termed) approximating to the epileptic and convulsive neuroses in their character, a more local Orig'in is often presumable ; and in such instances we often find sensory areas peculiarly prone to implication. (4) That even in the more universal implication of acute insanity, the full force of the nerve-storm falls with unequal strength upon special areas ; as indicated in the uncured wrecks of our asylum chronics, whose brains exhibit a very variable and unequal distribu- tion of the wasted areas. (5) In its destructive implication of the cortex, it is the inter- cellular nerve-fibre plexus (the relational element) which primarily and principally sufiers. (6) That the atrophic state induced in the consecutive forms of dementia results in a greatly-diminished brain-weight, as long since indicated by Sir J. Crichton-Browne.* Let us consider these more in detail. Our studies of the pathology of insanity would impress us with the important principle, that whenever the nervous elements of the cortex are primarily the seat of disease originating mental derangement, then the implication of the sphere of mind tends always to be more generally or universally involved ; but that where the nerve-changes are secondarily induced as the result of vascular disease, the greater tendency is shown towards a local or partial implication of that sphere. In the former case, the intimate connection of the nervous system may partly explain this more general implication, as it is scarcely possible for any serious affection of any * The statement made by Sir Crichton-Browne is to this effect: — " Consecutive and chronic dementia, a form or forms of mental disease, embracing so many of the inmates of our lunatic hospitals, whose nervous systems have been inseparably damaged by the acute storms of disease, or who have subsided quietly into the depths of fatuous degeneration, is represented in Table vi. by a brain-weight only a shade greater than that of organic dementia; the average for males being 1.315"3 grammes, and for females 1159"5 grammes." Brain, vol. ii., " On the Weight of the Brain and its Component Parts in the Insane." 490 THE MORBID URAIS IN INSANITY. cortical area to be established without involving neighbouring and distant territories closely associated in their functional activities, and, therefore, in organic connection with each otlier ; but, in the latter case, the territorial independence of the arterial supply and the ter- minal nutrient twigs of the cortex impose, as is well known, a localising character upon most of the nervous affections originating in vascular lesion. Hence we find that, whereas in ordinary uncomplicated acute insanity (acute mania or melancholia) the territorial implication is a Vepy g'eneral one, although invariably expressed at certain sites more than at others ; yet, that in certain insanities {e.g., that accom- panying general paralysis), special sites of election are taken by the diseased process, one area being affected after the other, until ultimately the localising character of the ailment fades into a widespread, general implication. So, again, in alcoholic insanity, the resulting dementia is peculiarly apt to exhibit this partial and restricted Character (especially in certain forms of amnesia to which we have previously alluded) ; upon the other hand, the gradually advancing, yet universal implication of mind in the decadence of senile atrophy would imply not as in the former a vascular, but a primarily nerVOUS orig"in. This tendency of primary nervous implication to share in the universality, which also characterises nervous affections of hjfimic origin, should not blind us to the fact already emphasised, that in the widest-spread mental disturbance the morbid implication is always more strongly expressed in certain directions than in others ; and that, in a certain sense, we may with propriety speak not of insanity l)ut of insanities, multiform in their nature, and all pointing to certain definite weakened areas in the material substrata of mind. In this sense we have long been accustomed to appreciate Dr. Hughlings- Jackson's dicta when dealing with the reductions of insanities ; and in this connection "a plea for the minute study of mania," by Sir J. Crichton-Browne, is well worthy of attention.* It is in this direction that we may yet hope for much enlightenment at the hands of clinical observers upon the question of cerebral localisation, or, at all events, for facts confirmatory of the results of experimental enquiry. Dealing, however, as we do here with mental operations the alienist has a field before him which extends far beyond the present limits of possible physiological experimentation. The superficial wasting of the cerebral hemispheres in insanity is far more general and extreme in the fronto-parietal segment of the brain ; in fact, as we have before seen, in three-fourths of all cases of cerebral atrophy we find the wasting limited to this division. It is the so-called motor, and intellectual, and inhibitory sections of the hemisphere j'^'f * Brain, vol. iii. PATHOLOGICAL INDICATIONS — SUMMARY. 491 excellence which suffer most severely as the result of acute insanity and its sequelae ; not the assuined sensory section. The more localised wasting, on the other hand, where limited to individual gyri, exhibits the same tendency to locate itself in motor areas, affecting in order of frequency the centres for the (a.) lower extremities ; (b.) the upper extremities; (c.) the face and tongue; whilst the separate frontal gyri come in order of frequency between the two latter. Last of all come the sensory areas of the temporo-sphenoidal, occipital, and angular regions (fig. 13, p. 457). A very different feature is presented by the localised softenings, due, in far the greater proportion of cases, to thrombosis of the cerebral vessels. Here it is distinctly seen (fig. 11, p. 452) that the sensory areas of the upper temporo-sphenoidal, occipital and cuneate divisions are most prone to become involved ; the motor areas of the ascending frontal and postero- parietal following in their turn. In mental derangements associated with (1 determined by) these vascular affections, therefore, we find the most persistent hal- lucinations of hearing" ; and this is a suggestive feature taken in connection with the proneness to the implication of the fourth or sphenoidal branch of the middle cerebral, and the occipital division of the posterior cerebral arteries. Alcoholic insanity, perliaps, affords us the best instances of the kind. What it is that determines the more frequent implication of these arterial channels than the other branches of the same trunk, we cannot at present even surmise. With respect to the question of localisation as affecting the frontal division of the hemispheres, it will be occasionally found that the atrophic sequelae of insanity exhibit a very notable wasting" of the frontal lobes ; the atrophy to which we allude is so extreme as to give this lobe a peculiar pointed aspect, reminding one strongly of the cerebrum in the i^abbit as regards its general outline. We have met with several instances — three especially marked cases — of this extreme atrophy of the frontal lobe. Its importance depends upon the constant association of a definite series of symptoms, which seem to us to have a localising significance and to which we drew attention in a former article on cerebral localisation.* The symptoms to which we refer comprise a peculiar form of dementia, in which extreme somnolence prevails, and an utter incapacity for the most trivial mental effort. Unlike many dements, their attention can scarcely be even momentarily aroused, and then only to be followed by a lapse into the profound torpor which simulates sleep. This condition of somnolence, lasting day and night, may continue * Bnt. .][(',/. Jour., vol. ii., 18SS. 492 THE MORIHD BRAIN IN INSANITY. for months or even years ere a fatal termination ensues. The subject is a perfect automaton, moves only when pushed along, requires feeding by hand, but swallows the bolus of food when placed in his mouth, and lies in bed torpid and motionless, giving utterance to no articulate sound. In one case — that of an aged demented female, in whom the framework, muscles and integument, testified to extreme atrophy — such a condition was induced during the last two years of her life ; but, at long intervals, evidence of nerve-instability was forthcoming, in the sudden, unexpected outburst of frantic passion in which she struggled, kicked, screamed and swore, employing a very free vocabulary of abusive epithets ; the outburst would last for but a minute, when the profound torpor again ensued. For months prior to her death she remained bed-ridden and during the ■whole of the period, except when roused for feeding, in a state of apparent profound sleep. Feeding had to be pursued with care, as she would often neglect swallowing the food placed in her mouth to lapse into her drowsy state, from which she was roused only by shaking and continuous exhortation. In another typical case, the patient was the subject of general paralysis ; in this form of disease, the symptoms now referred to and the frontal atrophy associated therewith are not of very infrequent occurrence ; the condition is one of long standing, and must not, of course, be confounded with the temporary stupor of the congestive and apoplectiform seizures incident to this disease. That extreme atrophy of the frontal lobe may occur in congenital cerebral affections without the symptoms here alluded to, is evident from the case of an epileptic lad at the West Riding Asylum, whose frontal gyri presented attenuation to mere riband-like folds ; and in whom restlessness predominated. Yet, in his case, intelligence was so far extinct, that he showed no appreciative recognition of any objects around him, and could not be taught to feed or clothe himself, or attend to any of his bodily wants ; he mechanically sucked every- thing placed in his hands ; could just utter imperfectly his own christian name. All his senses were intact. Goltz, in his removal of the frontal region in dogs, noted that the senses were intact; there was great irritability and restlessness ; they had a stupid, fixed expression of eye ; in following a bone thrown before them they apparently forgot their object and passed it by.* Horsley and Schafer observed temporary Stupidity in monkeys, from whom the prefrontal lobes had been removed ; but more to our point at present are the observations of Professor Ferrier, who, upon * PJluger\s Archiv., Bd. xxxiv. , 1884. THE BRAIN AND ITS MEMBRANES IN GENERAL PARALYSLS. 493 removal of the prefrontal region in monkeys, noted the following facts — to quote his own words : — " Instead of, as before, being actively interested in their surroundings, and curiously prying into all that came within the field of their observation, they remained apathetic or dull, or dozed off to sleep, responding only to the sensations or impressions of the moment, or varying their listlessness with restless and pur- poseless wanderings to and fro. While not absolutely demented, they had lost, to all ai^pearance, the faculty of attentive and intelligent observation." * It is impossible, upon reading this description, not to be struck by the remarkable similarity presented, in the mental deterioration of the patients to whom we have alluded, to the animals in whom the prefrontal lobes had been removed. PATHOLOGICAL ANATOMY OF GENERAL PARALYSIS. Contents. — the Brain and its Membranes: — Early implication of Vascular Tissues — Vital and Mechanical Effects — Effects on Lymph-Connective System — Intra- cellular Digestion— i?o?e of Phagocytes, or Scavenger-Cells— Character of Scavenger-Element— Its Vascular Process — Fuscous Degeneration of Kerve- Cells — Three Stages of Morbid Evolution: — Inflammatory Engorgement— Impli- cation of Pia-Arachnoid — Nuclear Proliferation on Adventitia— Paralysis of Arterial Tunics — Diapedesis— Exudation — Haemorrhagic Transudations — Arach- noid Hajmorrhage— Second Stage :— Hypertrophy of Lymph-Connective System —Fuscous Change and Removal of Nerve-Cells — Nature of the Destructive Process — Early Implication of Apex Process — Third Stage :— Fibrillation and Atrophy. The Spinal Cord: — Spinal Cases in Four Groups — Evolution of Pseudo- Tabetic and Spastic Paraplegic Forms — Angio-Neuroses — Pathogenesis of Transient Tabetic Forms — Changes in Vascular, Connective, and Nervous Ele- ments — System-Implication of Lateral Columns — Secondary to Cortical Lesions — Respects Systematic Barrier— Chronic Parenchymatous Myelitis— Dependent on Gradual Degeneration of Cortical Cells— Amyotrophic Form— Degeneration of Cornual Elements in Cervical Associated with Descending Lateral Sclerosis in Dorsi-Lumbar Regions — Combined System-Implication of Cohmins — Pseudo- Tabetic Forms— Ataxic Tabes— Loss of KneeJerk— Anorexia— Flashing Pains and Sensory Symptoms— Genuine Tabetic Forms in General Paralysis. The Brain and. its MemtoraneS. — The earliest indication of morbid change is certainly presented by the vasculap tiSSUeS ; turgescence of the vessels of the pia, great distension and engorgement of the cortical arterioles, are seen as the apparent result of an irritative process in their tissues. The perivascular lymph-channels are the site of a nuclear proliferation and segmentation of protoplasm, often so enormous as to entirely conceal the enclosed vessel from view. Certain methods of staining and preparing nerve-tissue are peculiarly adapted for exhibiting this change in the early stage of general par- alysis ; and it may be stated that the usual chrome methods are so * Functions of the Brain, 2nd edit., p. 40L 494 PATHOLOGICAL ANATOMY OF GENKRAL PARALYSIS. prejudicial to the morbid texture, that those who exclusively adopt them must have failed, as a natural result, to appreciate the true nature of the morbid change produced, and the very serious impli- cation of the vascular tracts which ensues. This development of nuclei along the lymph-sheath embracing the vessel must be regarded as a genuine inflammatory condition ; accompanying it, we observe the usual signs of an inflammatory process, a transudation of the fluid contents of the vessels into the lymph-channel and tissue beyond — a diapedesis; or an escape of amoeboid leucocytes from within the vessel through its coats, and collections of haematoidine crystals, frequently at the angular bifurcation of the vessels or between it and the peri- vascular sheath. The results of this inflammatory process are very damaging to the blood-vessel itself; changes are induced of a vital and mechanical nature. Vital, in so far, that the neighbouring inflammatory state of the sheath appears to paralyse the tunica muscularis of the smaller arteries, and the natural elasticity of the vessel becomes also impaired ; a relaxation ensuing which favours in a high degree stasis of the blood current, aneurismal distensions, and, on further mechanical obstruction, rupture of the vessel. Mechanical, in so far, that the uniform support of the adventitial sheath is impaired or lost, or its nuclear accumu- lations encroach on the lumen of the vessel and compress it ; or its transudation-contents in like manner (or otherwise) prejudicially aff'ect the other tunics of the vessel. At a still later period the sheath is yet further damaged by the numerous branching processes of cells exti'a- vascular in position, which play so important a role in the morbid process, and to which we must now direct attention. In this, the second stage, there proceeds a remarkable development of the lymph-connective system of the brain. The cells, which are usually described as "glia cells," or what we have in our anatomical section alluded to as the "flask-shaped elements" of the neuroglia, undergo a wondrous transformation, the real significance of which does not appear to have been hitherto appreciated. We will first describe these elements in their pathological developments ; and, subsequently, allude to the important role they play in the morbid evolution of this disease.* As before stated, these elements ai'e small flask-shaped cells * Intra-cellular digestion is now an established pathological fact, and the researches of MetschnikofF have extended largely the rdle of certain cellular organisms in the elimination of morbid material. The term phagocyte^, which he employs for those large cells active in the removal of effete material in the frog and other cold-blooded animals, we have employed when referring to the spider- cell ; but we prefer the term scaverKjer-cell for those fixed tissue-organisms which, as we have seen, have an active physiological and pathological rOle. See Metschnikoff's Original Articles, Virchoiv's Archiv., vols, xcvi., xcvii. LYMPH-CONNECTIVE SYSTEM, 495 with a comparativoly large nucleus at their greater extremity, which latter staius but faintly with aniline-black, whilst the protoplasm of the cell itself remains unstained, and so delicate as to be recognised with difficulty in healthy states. Each has a connection by a delicate process with a neighbouring blood-vessel, and, in frozen sections fresh examined, exhibits several i-adiate branches so fragile, and excessively delicate, as to be only seen after a keen search, since they remain wholly unstained by reagents {Fl. xviii.). In the morbid change to which we now allude, these flask-shaped cells enlarge very considerably into great amoeboid-like masses of protoplasm, often exhibiting sub- division of the nucleus ; and, what is of great import, their protoplasm now stains deeply with aniline, although not so intensely as do their nuclei. From this extraordinary cell of protean form radiate on all sides numerous branching fibrils, forming an intricate and delicate network around it as a centre, all of which branches, even to their most delicate subdivisions, are readily stained by the same reac^ent. These cells have been termed Deiter's cells : they are all characterised by the presence of a vascular process ; but well-prepared specimens show us not one, but often several, such processes distinguished by their greater diameter, their deep staining, and their termination in a nucleated-mass of protoplasm upon the walls of a blood-vessel {PI. xviii.). The students' attention should be drawn to the fact that in healthy states of the cortex these peculiar neuroglia elements may be readily distinguished from the nerve-cells, apart from their contour, by the fact that their nucleus alone stains faintly with aniline, whilst both protoplasm of cell and nucleus of the nerve-elements stain deeply ; whereas, in the diseased state to which we allude the morbid elements act like nerve-cells, both nucleus and cell-protoplasm, as well as ulti- mate fibrils, become deeply tinged by the dye, so that, in some cases, they do not look unlike nerve- cells ; and a few may even be mistaken for such, until the "vascular process" is detected. This difierent reaction in the diseased state is doubtless due to the increased and unnatural vitality * of these protoplasmic masses. These lymph- connective elements (normally spread as free cells, except for their vascular branch, throughout the neuroglia-framework of the brain) multiply by nuclear division and segmentation of the cell-mass until their numbers are so prodigious as to rival the densest groupings of nerve-elements in the same region (PI. xvii. ; PI. xvi., fy. 2). Their normal off"-shoot from the parent-vessel, or its sheath, explains their more dense distribution on either side of the vascular channels ; but * Even nerve-cells in certain diseased states stain 7norc intensely than in health —e.g., early stage of fuscous degeneration— but subsequently the reaction becomes progressively less intense. 496 PATIlOLOr.ICAL ANATOMY OF GENERAL PARALYSIS. they may jtermeate every tract of the cortex, from the peripheral zone to the deepest layer, and are, moreover, often formed deep in the medullated structure of the brain. Whenever a branch forms a new connection with a blood-vessel, at its junction with the sheath there is invariaVjly found a nucleated mass of protoplasm, often undergoing subdivision, and this process is specialised by its greater size and depth of staining; the other processes are much finer and more delicate, take a more tortuous course, and branch into numerous still finer ramifications (Fl. xviii.). Co-eval with this morbid transformation, we find the nerve-cells present indubitable evidence of a degenerative process (PI. xy'i., Jig. 1 ; PL xviii.). The morbid condition of the cell has itself been described by some authors as inflammatory in its intrinsic nature (Mierzejewski) ; Vjut, when carefully studied, we wholly fail to recognise an inflammatory condition, we see but the evidence of a true degeneration due to acute nutritional anomalies, and fail to observe any notable difi"erence be- tween the changes through which these cells pass, and those of the cortex in senile atrophy, except in the greater tendency to a true steatosis in the latter state ; and still less do we perceive the dis- tinction from what is observed in the " fusCOUS " chang'e of the large cortical cells of the epileptic's brain (PL xiv.). Where the cortex is extensively invaded by the abundance of lymph- connective cells, the nerve-cells will be found to present every stage of degenerative transformation from an incipient change in molecular consistence and coarseness to a broken-down residue recognised only as a faintly pigmented patch, scarcely preserving its outline as a cellular structure (PL xv.,Jig. 3). What is highly important for us to note is the connection betwixt such cells and the neuroglia-elements just described. The processes of these morbid elements apply them- selves to the nerve-cells, surround and embrace them closely ; whilst the latter are often overlaid by one or more of these spider-like bodies, still maintaining their connection by a long straight jrrocess with a distant capillary (PL xvii.). Occasionally, the branches appear directly connected with the nerve- cell, and at their junction a minute nuclear-like mass, more deeply stained, is seen. Wherever we find the nerve-elements much invaded by their strangely transformed congeners, there we observe advanced degeneration of the cell, to describe which in detail would be to repeat the description already given of pigmentary or fuscous decay (p. 473). It may be stated here, however, that the apical process appears to sufier at an early stage of the disease, and disappears often before the cell itself is very gravely implicated. As the nerve-cells undergo more and more serious disorganisation ^■^-H 1 -tj. > £ »\.= /r::>^' t -^^l/^ 1 1«A N ' STAGES OP MORBID EVOLUTION. 497 and dwindle away, so these elements of the neuroglia multiply and throw out their protoplasmic extensions in all directions around, tie down blood-vessels, draw the perivascular sheaths by their contraction out of their normal course so that they become (as represented in the figure, Fl. xviii.) pulled in this or that direction into innumerable angular or funnel-like extensions by the attached processes of these cells ; the vessels themselves become contorted, and drawn from their normal direction. Then a further change ensues, the cellular elements appear to reach a limit to their morbid activity, and expend their remaining vitality in a dense fibrillation. The protoplasm of the cell dwindles down as these meshworks of fibres form around it, and the nucleus alone remains as a sort of nodal point from which this fibrillated mesh radiates as from a centre, its branches interlacing most intimately.*" This stage of dense fibrillation and disappearance of the cell-protoplasm is the third Stag'e in the morbid evolution of general paralysis. To recapitulate, we have three well-marked steps thus defined whereby we may trace the morbid implication of the cortex. 1. A stage of inflammatory change in the tunica adventitia with excessive nuclear proliferation, profound changes in the vascular channels, and trophic changes induced in the tissues around. 2. A stage of extraordinary development of the lymph-connective system of the brain, with a parallel degeneration and disappearance of nerve-elements, and the axis-cylinders of which are denuded. 3. A stage of general fibrillation with shrinking, and extreme atrophy of the pax^ts involved. We may now proceed more fully to enquire into the indications afforded us by the morbid changes characterising the above stadia. Stag'e of Inflammatory Eng-orgement. — It is in the vessels of the 2^i<^ that lesions are earliest witnessed, and the lymphatic sheath is that in which the inflammatory change originates. Here it is that, in the earliest stages of the disease observed in the brain of a general paralytic, the initial vascular derangements are first to be noted; and cases proving fatal at an early stage, through the agency of any inter- current affection, may exhibit (beyond a slight general cloudiness of the arachnoid along the course of the vessels in the fronto-parietal regions, and a very slight increase in the toughness of the membrane) no other naked-eye evidence of disease. The membranes may be slightly more difficult of removal than in health, but show no genuine adhesion to the subjacent cortex. Yet sections of cortex examined microscopically * Such isolated nodules of dense fibrillated tissue of almost microscopic dimen- sions occasionally occur in the cerebellum. Their import has not to our knowledge been previously recognised. 32 498 PATHOLOGICAL ANATOMY OP GENERAL PARALYSIS. nil show a notable increase in the nucleated protoplasmic cells of the adventitia of the vessels of the pia, which vessels are also large, dis- tended, and often tortuous; together with a general, though slight, proliferation of the most superficial flask-shaped cells of the peri- pheral zone of the cortex, and the vessels of the intima pise resting upon it. From these cells of the pia long delicate processes are sent out extending deeply down into this layer; and, in fact, simulating in this early stage an appearance often found normally in the cortex of certain domesticated animals (the sheep, pig, rabbit, &c.). That these changes commence in the vascular supply of the pia-arachnoid, gradually extend into the cortex, and eventually penetrate its deepest layers, numerous examinations have established beyond doubt. In a further-advanced stage of this disease the soft membranes become far more gravely implicated. The nuclear proliferation around the vessels of the pia, their distension and engorgement (from paralysis of the vital contractility of the muscular coat) lead to a very free exudation into the meshes of the pia. The connective trabeculse lying between the intima pia and arachnoid (which are so especially loose and plentiful within the sulci separating the convolutions) become saturated with a fluid exudate, present a swollen and gelatiniform aspect to the naked eye, streaked with opaque lines, or assume a patchy, or a general and uniformly-difiused opalescence ; whilst to histological examination of sections they reveal beautifully-disposed mesliworks of connective fibrils, rich in cells, and permeating in every direction the subarachnoid space. Into this space exude the cellular and fluid products of the inflammatory sheath. This tendency to the accumula- tion of exudate in the subarachnoid lymph-tissue receives a marked increment at a later stage of the disease; foi', when atrophic changes occur in the cortex as the result of impaired nutrition and degeneration of nerve-elements, a great compensatory serosity of this region is established, and the membranes become fairly water-logged. The atrophy, which is the result of a genuine sclerous change in the cortex, is necessarily more marked in the sulci than over the summits of the gyri, the area of cortical surface involved in the one case being far greater than in the other, and, in consequence thereof, the gyri become narroived and attenuated — the thinning of the cortical layers being the most marked feature. The vessels in the pia lose the normal support received from the opposed gyri, and, as more compensatory eff"usion occurs to fill up the space left by the receding brain structure, so the natural support received by their walls becomes lessened, and in the diseased state of their parietes there becomes established a strong tendency to hsemor- rhagic transudation, or to actual rupture and haemorrhage. Such STAGE OF INFLAMMATORY ENGORGEMENT, 499 haemorrhages may be slight and merely punctiform, and are frequently observed ; or blood may be transfused into the subarachnoid space and a fibrinous coagiilum form upon its meshwork ; or, as we often see, a film of blood may be exuded upon the epicerebral surface, between the pia and cortex ; or, lastly, the delicate and perforated arachnoid may permit an extravasation on to its outer surface, so that the subdural space may thus become the site of a more or less extensive hemorrhage. The latter, or so-called mening"eal hsemOPPha^e, may be a mere delicate film of blood, or a simple rusty staining of the arachnoid surface, or a thick coagulum of blood extending over the greater part of one or both hemispheres ; or a coagulum within a firm fibrinous or organising investment completely encysted ; or, again, a thin, but tough, glutinous or fibrinous pellicle, slightly rust^stained, may be peeled ofi" the surface of the dura, forming one or other of the varieties of the so-called arachnoid cysts. These encysted haemorrhages (which are by no means peculiar to general paralysis, although frequently associated with this disease) appear to be due, in these cases at least, to an initial extravasation caused by the rupture of a diseased vessel in the pia-arachnoid, and to the subsequent rupture of newly-formed vessels within the organising clot. In none of these cases does it appear to us to have a direct inflamviatory origin in the membranes. Beyond these extravasations and infiltrations of blood, which invariably occur during an advanced atrophic stage of the disease, we find similar conditions established within the cortex itself Here, also, the blood-vessels lose the normal support given them in health by the approximation of the perivascular walls, which permit of a limited, but a definitely-restricted, expansion. In atrophy of the cortex, however, these channels become enormously enlarged and filled also with exudate from the contained vessels ; this distension of the perivascular channels favours the aneurysmal dilatations already alluded to, and the eventual rupture or transudation of the contents of the blood-vessels into the surrounding space and neighbouring tissue. Hence we get, in all such cases, evidence of extravasated blood in the form of hsematoidine crystals, which often occur in aggregated heaps, especially in the neighbourhood of degenerating nerve-cells. It would appear that the natural subsidence of compen- satory fluid into the sulci, and the much greater recession of the atrophic cortex allowed for by the special position of the walls of the gyri, is unfavourable to the formation of adhesions ; for it is a fact that such morbid adhesions in general paralysis are almost strictly limited to the summits of the gyri, where the pia-arachnoid is in close contact and does not permit of the accumulation of serosity to nearly the same extent as in the sulci. As the inflammatory state of the 500 PATHOLOGICAL ANATOMY OF GENEKAL PARALYSIS. lyini)hatic sheath of the vessels extends to the deeper layers of the cortex, other grave disturbances necessarily ensue ; and this leads us to the second stage of the disease, which is characterised by the extraordinary development of the lymph-connective system of the brain. Second Stag'e. — The implication of the perivascular lymph-channels by the enormous production of protoplasmic masses on their walls, and the blocking of their channels and impairment of the vascular tissues, directly affect the nutrition of the nerve-cells. A granular change ill their protoplasm ensues, and fusCOUS deg"eneration of theii- contents leads to their ultimately breaking-down into a fine molecular mass of debris. This, together with inflammatory exudates from the vessels, must be removed ; but the lymph-channels are not in such a condition as to ensure this removal of effete material. It is at this juncture that the supplementary lymph-connective element comes into play. In the normal state, maintaining its connection with the vascular walls by its Deiter's process, it either, by circulation of protoplasm or by contraction of the latter, removes such effete material from the cortex. Now, however, these organisms rapidly increase in size and numbers, forming large amoeboid masses of protoplasm, which apply themselves to all the degenerative elements around, and by a process of intussusception remove such particles into their interior. For long, these spider-like cells, or Deiter's cells as they have been termed, have been recognised by sevei'al authorities in the coi'tex of the general paralytic, and veiy varying and conflicting statements have been made respecting them ; by some, they were regarded as metamorphosed leucocytes wandering from the blood-vessels ; by others, as a simple px'oliferating connective, which by its pressure and strangulation destroyed the neighbouring nerve-tissues ; others, again, saw in them no special connection with general paralysis, since they have been recognised in various diseased states of the brain. It is true that these organisms are met with in other affections of the nervous-system, but simply because they play a most important role in the pathology of nervous diseases, and it is only when their real functional endowments are perceived that we recognise their important significance in the cortical lesions of general pai'alysis. The failure of the usual lymphatic tracts to remove efl'ete matter from the brain reacts by calling forth an increased functional activity in these lymph-connective appendices in the neuroglia, a true functional hypertrophy ensues, and these spider-like elements apply themselves to the task. They become the "phagocytes" or scavewr/ers o/^Ae tissue; live, thrive and multiply upon the degenerating protoplasmic masses of nerve-cells and their extensions, and all effete material lying in STAGES OP CELL DEGENERATION AND FIBRILLATION. 501 their neighbourhood is ultimately appropriated to their use. These active scavengers are also destructive of the living tissues; they affix tlieir sucker-like processes to any portion of their structure, and at the point of juncture we invariably see a small speck of active protoplasm containing a nucleus, probably in process of subdivision. Occasionally, several of these active elements are seen completely covering a large nerve-cell, which is in an advanced stage of decay, or scarcely visible, forming a mere pigmented molecular groundwork. They are usually noted in great abundance in the deeper half of the peripheral or outermost layer of the cortex, and, being unmixed with nerve-cells, are here peculiarly clear and defined. At this site their destructive agency makes itself felt upon the medullated nerve-fibres, which at this depth run parallel to the surface of the cortex as continuations of the apical processes of the cells of the lower layers. These, therefore, are the first nervous structures to be involved, and the apical processes of the pyramids are the first to undergo degenerative change. Third Stag'e. — Like all actively-growing elements these also have only a limited existence in this condition of morbidly-exaggerated function. The cells throw out innumerable fine processes ; and as the fibrillar meshworks increase so the cell-protoplasm, at whose expense they appear to be formed, dwindles down and eventually disappears. Hence we have here a veritable substitution of fibrillar connective formed out of the effete material afforded by the atrophic nerve-tissue, a genuine degradation of tissue. The process does not appear to us to be at all akin to the destructive influence of a compression from sclerous invasion ; but rather that the presence of the sclerous element is explained by its production out of already-degenerated nerve- elements. The Spinal Cord. — The spinal symptoms associated with the cere- bral disturbances of general paralysis have long been a subject of intense interest to the pathologist; and much diversity of opinion exists relative thereto, less so, perhaps, respecting the intrinsic naizire of the morbid change, as the mode of implication of the spinal tissue-elements and the initiator^/ conditions upon which the lesion depends. As is well known, the spinal cord is by no means uniformly implicated in all cases of general paralysis ; nor is the selected site of morbid change a constant feature. A large majority of cases of general paralysis pass through the various stages of the disease with- out any notable spinal symptoms, apart from those due to implication of the bulbar nerve-nuclei, until the latest epoch of the affection is reached ; whilst in others, from the very outset the spinal symptoms are the most prominent feature of the case. In other cases, again, the spinal symptoms appear to bear a definite relation to the various 502 PATHOLOfJlCAL ANATOMY OF <;RNEKAL PAllALYSIS. stages of cerebral disturbance, and vary in their nature pari lyassu with the latter. Thus we may be permitted to group cases usually encountered into four arbitrary divisions. (1) In the majority of cases, we have as the only evidence of spinal implication, a somewhat general diminution of cutaneous sensibility, associated with a sluggish or greatly-diminished knee-jerk ; alternating later on with (or supplanted by) increased knee-jerk, usually as the direct sequel to a convulsive or apoplectiform seizure. Later on, in the disease, 2^(^'>'^tic symptoms may predominate, and contractions be established ; but these follow in the wake of pronounced cerebral disturbances (convulsions, &c.), and appear, in fact, to be initiated thereby ; whilst the cerebral implication throughout has been all along the more emphasised. (2) Here, there is a second group comprising from the very onset notable tabetic symjytoms, the cerebral often so greatly in abeyance as to arouse the doubt whether we are not here engaged with a genuine tabes dorsalis of local spinal origin. The disturbance of sensation, the abolition of the deep reflexes, the ataxic gait, are all so prominent that we are apt to attribute such symptoms to a primary implication of the cord itself. And yet, in this tabetic form of general paralysis, we most usually witness complete subsidence of the special spinal symptoms, the tabetic gait passes oft" the knee-jerk returns, and then the full development of the cei-ebral symptoms is established ; or, what is not infrequent, the sensory implication of the cord becomes a motory afiection and spastic paraplegia replaces the ansBsthesia and ataxy. (3) In yet another series of cases, the viotor sjmial anomalies are from the first a most notable feature ; and symptoms indicating a symmetrical descending sclerosis of the lateral columns are early apparent, usually as the sequel of convulsive seizures, a mode of implication which appears to us of special frequency in general paralysis attecting those subjects who are addicted to alcoholic indul- gence. (4) Lastly, there are those cases where no spinal symptoms whatever are noticed, the derangements being cerebral throughout (13-6 per cent.). In explaining the features comprised under these arbitrarily-con- stituted groups, there has been a tendency to regard the later-evolved cerebral derangements of typical general paralysis established in a well-marked tabetic case, as due to an ascending change — i.e., to pro- pagation by direct continuity of diseased tissue ; thus making a system-disease of the spiual cord the originating factor of the subse- quent cortical lesions of general paralysis. \v.. PATHOGENESIS OF SPINAL IMPLICATION. 503 And, in like manner, the subsequent establishment of motor spinal symptoms {spastic paraj)le(jia) has been regarded as a direct transference of morbid implication across from sensory to motor columns of the cord, or to a descending lateral sclerosis having direct continuity with cortical lesions. It appears to us that there is little evidence in favour of such views, which would seem to originate in too servile an atten- tion to the great law enunciated by Waller. The Wallerian degener- ations do account for much in the pathological reductions of general paralysis; yet it appears to us to be much strained by efforts to establish its role when, after repeated attempts made to trace such degenerative continuity of tissue, the best observers have invariably been foiled. It is a notable fact that, despite frequent and most careful examinations of the spinal lesions of general paralysis, we yet fail to trace the continuity of descending changes of the lateral columns of the cord with the tegmental structures of the pons. We are apt in paying too strict attention to the operation of this important law to overlook the transfer of disease to distant parts of the nervous system through implication of higher realms, not hy direct continuity of diseased tissue, but through the vasomotor agency operative upon nervous tracts in physiological sympathy with their higher centres. This, it would seem, is illustrated in the pathogenetic history of general paralysis, wherein irritative or destructive lesions of the cortex cerebri invariably produce change in the nutrition of the cord, vary- ing in its site, nature, and intensity with the regions of the cortex implicated. Physiological experimentation teaches us that vascular tonus is dependent upon the vasomotor centre, or rather centres, within the medulla ; such centres maintaining their regulative capacity even upon removal of the hemispheres in animals ;* yet, it is never- theless true that though thus independent of cerebral innervation, the latter steps in and inhibits the activity of these centres in the medulla, as seen in the electric stimulation of the cortex, and, again, in its agency during certain emotional disturbances, as shown in the pallor of fright and the blush of shame. So also in pathological conditions, the ang"io-neurOSeS (or affections of the blood-vessels through deranged nervous agency) form a class of diseases which may implicate any tissue or organ in the body ; and in like manner, the vascular supply of the cord and medulla may undergo derangement through the disturbing influence of the higher cortical centres. We incline to * Section of the medulla at the calamus scriptorius paralyses the greater part of the vasomotor nerves of the body, and the blood-pressure, consequently, falls throughout the whole arterial system. Landois, op. cit. ; see also Ferrier, Functions of the Brain. Burdon-Sanderson, Handbook of the Phyaiolog. Lahorator>i. 504 PATHOLOGICAL ANATOMY OF GENERAL PAUALYSIS. regard the primary implication of the cord in general paralysis as in this manner produced — as being a genuine angio-neurosis. Later on, the destructive lesions in the cortex, together with the irritative process in the cord and medulla, lead to a general rise in blood-pressure, as seen in the sphygmographic tracings in advanced subjects (p. 429). The engorgement of the blood-vessels of the posterior columns of the cord is followed by transudation through their walls, and the lymphatic func- tions are stimulated to increased activity. Usually the latter function sufl&ces to re-establish the balance, and the tabetic symptoms at first apparently subside; but occasionally they persist, and then we meet with a true degenerative change in the posterior columns. The pressure of the engorged vessels in the sensory tract of the cord is the essential cause of the early tabetic symptoms and sensory distui-bances of many cases of- general paralysis ; and in the fact that this is often a transient state, not necessarily leading to destructive results in the nerAe- elements, we find an explanation of the subsidence of such symptoms. We must not be understood to imply that the changes in the posterior columns of the cord in those cases of general paralysis characterised by persistent tabetic symptoms are due to the identical lesion found in typical tabes dorsalis ; we have not here an ascending sclerosis of these columns, but a very distinct affection, which appears to commence generally and simultaneously through large tracts of the cord ; in genuine tabes we perceive extensive and extreme destruction of nerve- fibres, whereas in the pseudo-tabetic general paralytic we often find the nerve-fibres little (if at all) implicated. In some of the most extreme cases of the disease yet observed, the nerve-fibres of the posterior column were of fair size and apparently healthy. With respect to the lateral columns of the cord, however, the case is different ; a genuine sclerosis is here established, which results in progressive destruction of nerve-tissue, and which (although it may originate at one or several sites) spreads downwards as a descending sclerosis along the physiological tracts on which it has established itself. Commencing, we opine, as an angio-neurosis in a territory directly in sympathy with implicated cerebral areas, it leads to much more profound lesions than are found in the posterior columns of the cord. In the posterior columns of the cord the morbid appearance presented must be studied in respect to the vascular, connective, and nerve-elements respectively. VaseulaP System.^ — Nearly all cases present an apparent increase in the number of the vessels of the posterior columns. The appearance is, however, deceptive, in that there is not an absolute numerical increase in the vessels seen in transverse section, but an increase in CHANGES IN VASCULAR AND CONNECTIVE STRUCTURES. 505 their size, due to long-continued engorgement, which renders them a most prominent feature in the sectional fields. Limited to certain divisions, or scattered indiscriminately over the whole area of these columns in aniline or hseraatoxylin preparations, they at once obtrude themselves on our notice. The individual vessels, although of large size, have a lumen greatly diminished by the encroachment of their thickened walls ; the muscular coat of the smaller vessels is distinctly hypertrophied, presenting the appearance which has been so well described by Dr. Johnson in the renal vessels in chronic Bright's disease. In other respects, the vessel appears free from morbid change ; the lymphatic channels are not unduly distended, no pro- liferation of nuclei is observed, and no other evidence of inflammatory change in the vessel's tunics or exudates from its channel, such as were described in the vessels of the cortex. The change appears to be one of simple compensatory hypertrophy induced by the engorged condition of these vessels demanding increased contraction on the part of the arterial muscle to carry on the circulation of the cord. Just as in the renal vessels, the muscular coat hypertrophies to overcome the languid circulation of the organ, so the muscularis of the rachidian arterioles increases with the engorgement of these columns, induced by the changes occurring in the cerebral cortex. The Connective System. — The stellate cells found normally throughout the columns of the cord, and which are the representatives of the delicate neuroglia-elements spoken of as the flask-shaped bodies of the cortex cerebri, do not, in the healthy cord, form so prominent a feature in transverse sections. In diseased states, however, they not only enlarge, but multiply greatly, and their proliferation as " Deiter's cells " is a notable feature in the columns of the cord in general paralysis. In fact, these spider-like cells accumulate in vast numbers, and especially along the vascular tracts, giving these regions a deeper staining in aniline preparations quite appreciable to the naked eye. Such tracts, consequently, look at first sight like sclerosed tissue, until microscopic examination resolves them into large numbers of deeply-stained spider-cells. They are by no means peculiar to general paralysis, as they are found in these columns also in chronic inflam- matory conditions, in all long-standing congestions of the cord, in alco- holism, and in senile atrophy of the cerebro-spinal system. A genuine sclerosis, such as is seen in primary tabes, we do not find ; no finely- punctated connective tissue pervades these columns of the cord, so that the uniformly-deep tinge of stained preparations is not so frequent a feature here. The increase is simply that of the lymph-connective system, apparently stimulated by the engorged condition of the vascu- lar apparatus and the defective elimination dependent thereupon. 506 PATHOLOGICAL ANATOMY OK r;ENKKAL PARALVSLS. The Nervous Elements. — As above stated, those often remain little or not at all implicated. No enlarged axis-cylinders are observed, no swelling of the meduUated sheath, no proliferation of nuclei ; nothing which can be translated into signs of inflammatory implication of the nerve-fibre. The spider or " scavenger-cells " (as we have termed those elements) appear powerless in their agency upon medullated nerve-tubes, and it would seem that their destructive agency directly affects only the \inprotected protoplasmic structures, the nerve-cell, the axis-cylinder process before it attains its medullary investment, or the protoplasmic bi^anches of these cells. The connec- tive elements, however, eftect the degeneration of the medullated tube by the pressure and encroachment of sclerous fibrillated tissvie, as seen by the invasion of the finely-punctated tissue in other forms of ascending sclerosis. As to the site of the changes just considered, the postcriOP COm- miSSUPal zone of the cord is a special favourite site of election. Here the vascular tracts almost invariably exhibit the change described, even if nowhere else observable. The COlumns of Goll are likewise often implicated, whilst a third favourite site appears to be the posterior radicular zone, the morbid change extending from the entrance of the innermost fibres of the posterior roots into the cord along their course until they enter the posterior cornu. The proliferating scavenger-cells, as before stated, usually follow the course of these morbidly-distended vessels, and by their depth of staining map out the posterior column into a riband-like band involving one or both radicular zones, or occupy the inner wedge-shaped extremity of Goll's column, or form a deep-coloured belt immediately behind the posterior commissure. In such cases the substantia g'elatinosa of the posterior cornu is riddled throughout by similar dilated blood- channels. This increased vascularity may pervade the whole of the central grey matter, as well as the lateral columns. System-Implication of Lateral Columns. — When these coluinns are involved the indications presented are those of chronic and mild congestion leading to eventual sclerosic degeneration of the tissue. In fresh preparations such changes may not l)e appreciable to the naked eye, and (unlike the secondai-y degenerations from focal lesion in the cerebrum) they are not revealed, except to histological examination. In the ordinary forms of descending lateral sclerosis consecutive to desti'uctive lesions in the motor area, the degenerated columns betray themselves by their greyish translucent aspect, showing through the pia just as the ascending sclerosis of genuine tabes reveals itself by the same peculiar pearly translucency in the posterior columns. The naked-eye examination, however, may indicate its existence by the ASSOCIATED SVSTEM-DISKASKS OF THK COHD. 507 altered contour of the cord, the column implicated being often shrunken, contracted, and the normal symmetry distorted. Again, section of the fresh cord in the former affection (descending lateral sclerosis) exhibits the degeneration to the naked eye as a greyish, brownish, or fawn tint, and a translucency due to the diminution of medullated sheaths of the nerve-fibres, as also to the preponderance of enlarged blood-vessels and connective elements. In the lesions of these columns in general paralysis these appearances are observed only where the process has been unusually active; in the great majority of cases they require microscopic examination of specially-hardened chrome-specimens to reveal the degenerative condition. What is observed in such sections prepared and stained by the usual means is the deep tint taken up by the diseased tract; the vessels and trabecular tissue and intervening connective being so far predominant as to take up much more of the staining reagent than the healthy tracts, where the axis-cylinder is ensheathed by its normal amount of myeline; if, before staining, such sections are "cleared up" and examined by transmitted light, the peculiar translucent aspect of the diseased tracts also suffices to map them out accurately to the naked eye. The intimate nature of the process is revealed by histological examination. It is thus found that, in the posterior half of the lateral column, reach- ing back to the posterior cornu, but bounded externally by a tract of healthy nerve-tissue — the direct cerebellar tract — there is a dark-stained area in which the nerve-elements are in a state of inflammatory disintegration. The medullated fibres have lost a great part of their myeline, and are notably diminished in size — their axis-cylinders, however, still remaining; here and there the nerve-fibres appear larger than usual, the medulla swollen — faintly tinted with the dye (an indication of its necrotic stage) — and the axis-cylinder either displaced laterally or entirely absent. These enlarged fibres, seen in transverse sections, are but the swollen moniliform portions of the disintegrating nerve-fibre divided at its lai'gest diameter. To indicate this fact, longitudinal sections through the column should be made, and examined in the fresh and in the mounted state. The nerve-fibres will then be seen to be undergoing marked inflammatory change; a large proportion may exhibit almost empty medullated sheaths, enclosing a still- continuous axis-cylinder; in most cases the axis-cylinder is itself izaterrupted, displaced, contoi'ted, and severed along its course; the less degenerate fibres show irregular enlargements along their course, often presenting a notably-moniliform asj)ect due to proliferation of tlie nerve-nuclei, increase of their protoplasm, and segmentation of the medulla thus induced; in fact, an active destructive process, in which these nucleated masses of protoplasm forming the cellular element of 508 PATHOLOGICAL ANATOMY OF r.ENEHAL PAFJALYSLS. each segmented node of the nerve-iibro take the eliief part, a process clearly enunciated by Rjinvier. If these longituflinal sections are examined- in the unmounted state prior to the clearing up with oil of cloves, the fibres are also seen to have freely scattered over them a large quantity of compound granule-cells — another indication of the inflammatory change. These gi'anule-masses are immediately lost upon the use of this clearing reagent, but may be temporarily preserved by mounting in glycerine. Returning to our transverse sections of these columns, we find the trabecular tissue largely increased, its radiating cells enlarged, and much fine punctated fibrillar tissue (deeply-stained) intervening betwixt the degenerate nerve-fibres, and following out especially the direction of the vascular tracts. The vessels themselves are unduly large, and very prominent in the diseased part; their walls are invariably thickened, the muscular tissue, more especially, being thus increased; ■whilst the smaller vessels exhibit the change more notably than the larger; in many cases the lumen may be almost obliterated. The lymphatic sheath may be distended, but this change is not so prominent a feature as in the common form of lateral sclerosis from cerebral focal disease; nor, upon the other hand, does it approach to the remarkable change seen in corresponding tissues in the cortex of general paralysis. The vessels themselves usually form centres from which connective tissue radiates into the surrounding nervous structures placed in the axil of the trabecula; the open lumen, the thick wall of the vessel, and its occasionally distended sheath are prominent objects, and the radiate cells around thrust out their processes into the finely-punctated connective in which the nerve-fibrils are imbedded. The appearance is almost suggestive, at first sight, of primary interstitial change; but this can scarcely be maintained in view of the fact tliat the vessels may be traced through healthy tissue (such as pass through the direct cerebellar columns) into the diseased focus, and that only on their arrival in the inflamed zone do they present the morbid appearances described. The same statement holds good for ordinary descending sclerosis, secondary to cerebral lesions; here, also, we witness the implication of the vessel only upon its arrival at the site of morbid activity. Again, we do not meet with the enormous nuclear proliferation upon the walls of these arterioles, such as we found in the cortex; the adventitia is, as a rule, devoid of any undue proliferation. It is not, however, intimated by this, that a true parenchymatous neuritis may not induce such nuclear proliferation by extension of the inflammation to the vascular tracts and interstitial tissue; but, that, in the absence of this change, we probably have positive evidence of an inflammatory extension to the blood-vessel not having occurred. A still more important indication "PlaieXiV. FigTn.erd.ed aridi shruTil-cen apex. Piarncntecl ^ranide mass^ ^iTimken &. displaced nucleus \ » _^^'<^i^-m£nied OTanular mass. Process contimzczis ivUh retracted -protoplas-f. Tusccus de^ eTiereitioTi of large Ganglioz^ic cells of Motor Cortex , lL\xiin.aTi. x350. PARENCHYMATOUS MYELITIS. 509 of the change being primarily a ixirenchymatous neuritis is found in the tendency of the lesion to assume a genuine system-distribution; and the argument holds good for these changes in the lateral columns of the cord in general paralysis, just as Gowers indicates that it does for the system-disease of tabes dorsalis. Assuming, then, that the changes met with in the lateral columns of the cord in general paralysis are of the nature of a parenchymatous i-ather than an interstitial myelitis, and that this change tends to establish a system-disease of the cord, we naturally ask how the change is primarily induced. Why do the nerve-fibres take on the inflammatory condition described 1 There can be little doubt that the true explanation lies in the destructive and irritating lesions proceed- ing in their trophic centres in the cerebrum ; for we may safely assume that the cortical cells in communication with such motor fibres also exert a trophic influence over them. The initiatory change, viz., the increase of the nucleated protoplasts of the medullated nerve-tubuli, we do know occurs as the result of its separation from its trophic centre, as by section or other lesion; and we trace in the cortex lesions of motor cells which indubitably should lead to the changes described. It is a significant fact, also, that one of the earliest indica- tions of the change is the extreme vascularity of the tract afiected, in itself, possibly, the expression of the trophic disturbance. To sum- marise these views : — 1. The change is induced secondarily to the cortical lesions. 2. It establishes itself after the WaUerian principle ; does not overstep its systematic barrier, although it may originate simultaneously at several distinct and distant parts of this tract. 3. It reproduces, in varying degrees of intensity, the character of a chronic parenchymatous myelitis with notable vascular change. 4. Its intensity never approaches that of the descending myelitis due to large focal lesions of the cortex, and being in its essential nature dependent upon a gradually-advancing- deg'eneration of cortical nerve-cells, and not a sudden or gross lesion such as the former, the irritative influence on the cord is greatly mitigated. Although, in the greater number of cases, the change found in the posterior columns of the cord is limited to the vascular distension above alluded to, and the abundant production of scavenger-cells ; yet, in certain instances, we meet with a genuine myelitis, the site of which is usually the posterior radicular zone, often extending across towards the columns of Goll. Here, the nerve-tubuli have veritably undergone inflammatory change ; and, as will be described more fully in the lateral columns, the medullated sheath is found swollen, faintly stained, the site of nuclear proliferation and disintegration of myeline. Many 510 PATHOLOfJICAL ANATOMY OF OENERAL PARALYSIS. of these enlarged tubuli show no axis-cylinder or one which is displaced laterally, and the increase of connective along the vascular tracts often leads to a notable diminution and distortion of these columns of the cord. The ordinary grey degeneration of these columns seen in tabes (lorsalis is not in these cases reproduced, hut a much more irritative process, highly inflammatory in character, and closely resembling the sclerosic conditions of the lateral columns with which it is often associated. (PI. vi.,Jigs. 1-3; PI. vii.) Combined System-Implication of Columns.— Do the changes found ever resemble those of amyotrophic lateral sclerosis 1 We need only refer to the case of M. J. R. (p. 278) for a typical illustration of this amyotrophic sclerosis associated with general paralysis. Such cases present a very rapid downward career, which is mapped-out in the earlier stage by successive apoplectiform and convulsive seizures ; the latter are usually unilateral, often limited to the facial muscles, and unattended by loss of consciousness. As a sequel to this seizure or "fit," as the friends term it, a loss of power in one or other limb is almost universally found to exist; usually it is the arm that suffers most after these attacks, the grasping power being greatly diminished, and the subsequent changes in the muscular power and nutrition of this member may be disturbed in advance of the lower extremities. These paretic states at first may be very transient, or last a day or more ; the locomotion continues unimpaired, the general nutrition of the body may be unaffected, and exercise be taken without inducing fatigue for a period of one or two years subsequent to the onset of the cerebral disturbance. Then, there appear symptoms which inaugurate the advent of organic changes in the cord ; the locomotor powers may still be good, and considerable muscular force may be exhibited, but equilibration is distinctly disturbed, and al- though the patients may be able to approximate their feet in the erect position, and close their eyes with but slight swaying, yet they stagger considerably in attempting to walk in a straight line (heel and toe). The gait gradually indicates advancing ataxy, the legs are thrown out in disorderly fashion, and the tendency to come down on the heel is also recognised. Yet, in lieu of decreased or abolished knee-jerk, we now find either that it is normal in force and range, or that it is greatly increased. At this stage also, we get ankle-clonos in one or other limb as a frequent accompaniment. The tongue now is protruded jerkily, and all its movements are ataxic, the lips may be exceedingly tremulous, but deglutition is unimpaired. Attacks of maniacal excitement may now precede sudden failures of power in the lower extremities, and we find ankle-clonos and the knee- tap reaction in excess. The arms now rapidly emaciate, and become AjMyotropiiic form. 511 correspondingly defective in muscular power ; in fact, the most marked feature of the case at this period will be this extreme atrophy of the upper extremities, in which the more specialised muscles are not picked-out in the manner of the ordinary progressive muscular atrophy, but the large muscles of the shoulder-joint, the musculature of the arm, and the flexors and extensors of the forearm are chiefly involved. No contractures of the arm occur, or myotatic increase, but complete flaccidity, and the legs do not participate in this subacute atrophic state. On the other hand, the legs show more marked sensory dis- turbances, cutaneous sensibility becomes blunted, there is increased swaying in the erect position, the gait may be that of an unsteady jog-trot, or more notably ataxic. Exalted knee-jerk and clones may still exist ; but, muscular enfeeblement now rapidly supervenes ; the limbs tend to exhibit spasmodic fixation, but are more frequently kept stiff and rigid by voluntary effort. The patient is now bed- ridden, and at this stage is usually profoundly demented. Implication of the sensory nerve-roots becomes evidenced by almost complete loss of cutaneous sensibility in one or both legs, and is probably, also, indicated by a sharp distressing cry often repeated, as if the poor patient were the subject of sudden lightning-pains. Ataxy is also now present to a very notable degree, and the knee-jerk (up till this period normal, or unduly exaggerated) is completely aboHshed ; plantar-reflex is also absent. By this stage the subject is in a pitiable condition, helpless in limb, utterly incapable of attending to the most trivial wants, exceedingly timid, and the apparent sufferer from fulgurant pains; there is profound implication of the bulbar nerves, deglutition being so far impaired as to make the effort both painful and full of risk ; whilst softened food placed in the mouth is apt to be retained as a bolus in the cheek-pouch for hours, unless care be taken. The extreme emaciation of the upper extremities is also attended by rapid atrophy of the facial muscles, loss of all adipose tissues, and a sharpened pinched expression of the features. Reverting now to the amyotrophic form described, we note first, that the spinal appear consecutively to the cerebral derangements ; and, as before stated, are almost invariably ushered-in as the direct results of apoplectiform or convulsive seizures. The resulting paresis is, at first, nothing more than the post-convulsive exhaustion, often seen in epileptics, in whom also the myotatic increase indicated by the knee-jerk and ankle-clonos is often seen ; but, eventually, the inco-ordination established, apart from defect of sensation or patellar reaction, indicates a morbid change in some region of the cord, other than that of the posterior sensory roots, and this change is detected across the columns of Goll, and partly in the 2^ost-co7)wiissural zone, the 512 PATHOLOGICAL ANATOMY OF (iENKUAL PARALYSIS. implication of wliitli undoubtedly leads to inco-ordinate action, with- out further derangement of cutaneous or muscular sensibility. In fact, a morbid basis is established for the muscular excitability indicated by the increased knee-jerk in a finely-punctated sclerosis of the lateral columns of the cord, which may be traced from the dorsal cord throughout the lumbar region, but it may not be at all apparent in thece rvical region. {PI. vii.) It is to the increase of this sclerosic state of these columns we must attriVjute the progressive stiffening of the lower limbs, and their exalted muscular irritability. Later on in the history of these cases, the changes noted in the columns of Goll spread obliquely outwards so as to directly involve the posterior sensory root-libres, inducing thereby the notable ataxy and anaesthesia of the limbs ; but still exhibiting betwixt lower and upper limbs, the contrast of rigidity of the former (associated with no special wasting) and of extreme atrophy, paresis and flaccidity of the latter. As regards the arms, the changes found in the anterior cornua suffice to indicate the cause of extreme emaciation of certain muscular groupings, and their progressive enfeeblement in motor power. {PL xiii.j The lesions in the multipolar cells of the cornua also, in like-manner, explain the complete flaccidity of this member, for in this region the lateral columns are not diseased. Charcot's view of amyotrophic lateral sclerosis cannot be advanced here ; for we plainly see a degenerative atrophy of the cornual elements at a plane considerably higher than any change indicated in the lateral columns of the cord ; the latter, in fact, is first seen in the dorsi-lumbar region, not in the cervical, whereas the degeneration of the anterior cornua is first seen in the cervical region. That the latter is established by a sort of projection of the disease forwards from the lateral columns is, therefore, here quite untenable, nor, in fact, can any relationship betwixt the two be aiffirmed ; and this accords completely with what we constantly see in ordinary descending lateral sclerosis from focal cerebral lesion, where the lateral columns may remain for eight or ten or more years profoundly implicated, with no obvious change in the cornua. Evidently, then, this disease in the anterior cornua of the cervical and the lateral sclerosis of lower regions of the cord are independent states, mutually related only as regards a community of origin higher up in the cerebral cortex. Why it is that the cornua are afiected in the cervical, and the lateral columns in the dorsi- lumbar cord, can probably be explained only by the special localisation and depth of lesion, or degenerative change within the cerebral cortex. Then, again, as regards the posterior columns of the cord ; we find here the frequent vascular change observed in general paralysis, and the aflections whereby the cortical lesions tend to project their PSEUDO-TABETIC EOItM. 513 influence upon subordinate regions of the spinal axis ; the vascular turgescence, however, is not so great in these cases as the purely neural change. {PL xvi., fig. 3.) The change is not one of connective proliferation, of abundant cell-growth of scavenger-elements, or of notably-enlarged vessels presenting changes in their tunics ; it is not a vascular nor interstitial connection, but a purely neural change — a genuine myelitis — tending to spread exclusively along the direction of the sensory root-fibres, as indicated in the description above given. No cases, in fact, would better indicate to us the neural origin of ascending changes in general paralysis, and in certain forms of tabes. If, as often happens, the posterior cornua be also implicated by extension of this lesion to the substantia gelatinosa, we get anaesthesia of the corresponding limb. The order of evolution of the morbid changes, appear to be as follows — first, the posterior median and posterior commissural zones are involved, issuing in inco-ordinate gait ; next, the lesion tends to spread over the whole of the posterior root-zone, and along the course of its sensory fibres ; at the same time progressive degenerative changes occur in the lateral columns in the dorsi-lumbar region. Ere these latter changes are much advanced, amyotrophic change is observed in the upper extremities, revealing the lesion located in the anterior cornua, and, subsequent to this, a rapid ascending change from this site implicates the bulbar nerve-nuclei, and hastens on the fatal termination. Implication of Posterior Columns (Pseudo-tabetic forms). — We have thus, so fai-, dealt with a combined system-aflfection of the cord in general paralysis, where a postero-lateral change predominates in the lower region, and a polar impairment (issuiug in progressive general muscular and bulbar atrophy) is emphasised in the cervical regions. Let us now consider, more particularly, the cases where the former exclusively exists. {See case ofH. U.,p.2^l.) A notable feature in this class of cases is the predominance of sensorial derangements, not as regards spinal symptoms only, but as expressed in cerebral symptoms also. The mental anomalies appear specially to indicate a wide-spread sensorial implication, and the maniacal perversions are characterised by most vivid acute hallucinations, by very painful emotional states, often culminating in attacks of the most acute melancholia. The painful mental states are all associated with well-marked hysteric outbursts so characteristic of this series of cases. It is only in the later stages of the disease, when the dementia is fjxr advanced, that this painful state of mind declines, or rather is replaced by a condition bordering upon idiocy, often with much frenzied excitement. Another prominent symptom is that of frequent convulsive attacks, 33 514 PATHOLO(;lCAL ANATOMY OF GENKRAL PARALYSIS. which are often peculiarly severe in nature, and leave wide-spread and notable sequehe, physical and mental. When such a case presents itself, we are struck at the onset by the marked tabetic gait, a feature especially striking if the subject be in a state of excitement. The feet are planted wide apart, the legs thrown out in most disorderly style, and the heel brought down with disproportionate force. The inco- ordination is further increased by closing the eyes, and the patient cannot stand in this position without falling. Yet, muscular power is in no way necessarily impaired, and the limbs will resist forcibly efforts to extend them. Since, however, convulsions are very frequent in such cases, we often find a considerable amount of paresis, but this only of a ti-ansient nature at first ; great fatigue upon slight exertion may be complained of, or the grasping power diminished, as in one of our cases, to 4 kilogrammes. No permanent paralysis is detected in this early stage; but the all-important fact to recognise is the complete absence of muscular atrophy, and the non-implication of the cutaneous and muscular nerves. Yet, simultaneously with this absence of sen- sory manifestation in lower planes, we may find the sensory tract of the trigeminus implicated — e.g., the herpetic eruption and trophic impairment of cornea in the case of H. U. The ataxic gait is, as usual, a more obtrusive symptom than the same impairment in the movements of the hand and arm ; yet an attempt to write, to button the coat, to sew, or thread a needle at once makes evident the fact that the inco-ordination of the hands is as gravely impaired as that of the lower extremities. If convulsions occur, they are usually unilateral, or much more marked on one side than the other; they generally leave behind them a hemiplegic state, often with complete hemiansesthesia. The reductions from such convulsive seiz- ures are often most profound and prolonged, the subjects being left for days together in a state of complete stupor ; mute, requiring forcible feeding and catheterism, and keeping the mouth full of saliva. Then, as normal sensation is regained and muscular power returns, we may have wild delirious excitement, which may be associated with desperate suicidal impulses. (//. U., p. 281.) Repeated attacks of hemiplegia with more or less complete anes- thesia of the same side occur, leaving the patient speechless and helpless for days, until eventually the aspect of the case is one of utter imbecility. In the intervals, however, between such seizures, he may still go about exhibiting notably the inco-ordinate gait, but with normal, or more often with acutely-exaggerated knee-jerk. Contractions of the limbs now ensue, being generally limited to the upper ex- tremities, and corresponding to the side usually left paralysed after convulsive seizures ; thus, in a case of right hemiplegia with hemi- PSEUDO-TABETIC FORM. 515 anaesthesia following convulsive attacks, the permanent paralysis and contracture is sure to develop on this same side. Ushered-in by slight initial rigidity of the extensors of the forearm and wrist (which permit of wrist- and ankle-clonos upon slight flexion), the flexors soon antagonise and contract the arm in the usual semiflexed and pronated position. In this advanced stage there may still be no vasomotor change in the limb, and no indication whatever of trophic disturbance; but at a still later stage the skin of the feet may be cold and bluish, and a co-existent ancesthesia may be noted in the skin of the calves, the plantar reflexes, however, still remaining brisk. The lower extremities may show a certain degree of clasp-knife rigidity, or spasmodic fixation, but no permanent contracture ; yet, in the latest stage, the repeated convulsive seizures so far exhaust the energy of the motor tract, that the patient sits squatting in stooping posture, or attempts locomotion on hands and knees. Deglutition may be little impaired except as the immediate result of epileptiform seizures; grinding of the teeth is a very frequent accompaniment. From the first series these cases are, of course, notably distinguished from the outset, by the far greater obtrusiveness of inco-ordination, which, at first sight typically tabetic, is subsequently found wanting in that implication of the sensory nerve-roots which would render it a genuine tabetic condition. No disturbance of muscular or cutaneous sensibility, however, is discoverable, except as the immediate outcome of a cerebral discharge. Such cases conclusively prove that inco- ordination may result from lesions in the regions of the posterior columns other than the posterior root-zone; and that the posterior root- fibres must be implicated to explain any existing sensory anomalies of skin and muscles. We find in the cases presented by this series that the postei"ior root-zone is absolutely free from disease ; and that any morbid implication of the posterior columns of the cord is exclusively limited to the posterior commissural zone and posterior-median columns (columns of Goll), in cervical, dorsal, and lumbar divisions of the cord; this implication of the columns of Goll with a perfectly healthy state of the sensory root-fibres we have repeatedly recognised.* The lesion observed differs also from that of the former series in being a much more pronounced vascular and cellular change. The vessels of the pos- terior commissural zone being notably dilated, and extending down the median raphe, are accompanied by a dense crowding of scavenger-cells (the abundant proliferation of which is a striking feature) presenting a coarse trabecular appearance, in which thick-walled vessels with con- tracted lumen are freely scattered. (PI. xvi., Jig. 3; PI. xviii.) The * See in this connection the microscopic examination of the cord in tlie case of H. U., p. 282. 516 PATHOLOGICAL ANATOMY OF GENERAL PARALYSIS. nerve-fibre does not itself appear implicated as in the former series, and the disturbances in their oonductibility are pnjbably the result of the pressure produced by this morbid cellular growth, and the engorged and distended nutrient vessels of this region. The mor])id change in tissue follows out very accurately the immediate confines of Goll along the inner half of the wedge-shaped apex, where it lies in contact with the columns of Burdach, respecting rigidly the posterior root-zone, however; but, the columns are throughout their inner half the site of such change, especially along the median raphe. It would appear highly probable that, in those cases where inco-ordina- tion, existing notably ybr a time only, has gradually declined or wholly disappeared, the phenomena may be regarded as 2)'>'^ssure results which have not proceeded to actual myelitis, and in which the scavenger-cells have performed their depurative functions (p. 497) and have been replaced by fibrillated tissue. The muscular tone in all these cases is but slightly, if at all, impaired ; and the anterior cornua remain intact, as evidenced by the well-nourished aspect of the muscles late on in the disease ; no centric atrophy of the limbs is seen as in the former cases. The general muscular debility and fatigue upon slight exertion, which such cases present, are the outcome of the exhaustive convulsive seizures to which they are so subject, and not of a persistent paralysis or atrophic change in the muscles of the limb. The descending changes in the lateral columns always appear as the sequel of the convulsive seizures above alluded to, and explain the association of exaggerated knee-jerk with the inco-ordinate movements of the limbs; such sclerous change implicates, as before stated, the greater part of the column, respecting, however, the direct cerebellar and intermedio-lateral zone, it yet creeps forward as far as the postero-external group of cells in the anterior cornu. The change occurring in the posterior median tracts of the cord is earlier in its incidence than this lateral sclerosis, as shown by the much larger development of contractures in the limb after a long persistence of inco-'ordination. Then we have to consider the association of the cortical implication with these spinal changes. It is in such cases we get little, if any, indication of adherent membranes, and the atrophic state of cortex will be chiefly located in the upper parietal or postero-parietal lobule. We have elsewhere indicated the association of lesions at this site with ti-emulous and ataxic movements of the lower limbs,* and it appears to the writer probable, that the implication of the posterior columns of the cord, at the side named, has some direct originating con- nection with the extreme atrophy undergone in the postero-parietal lobule. * "Localisation in Cerebral Disease," Brit. Med. Jour., vol. ii., 1883. TABES AND GENERAL PAIJALYSIS. 517 The absence of muscular atrophy, which characterised tlie former series of cases, is consistent with the immunity of the anterior cTaiiOTi of periplieral zone (1= layer) of Cortex in a case of advanced Senile atrophy of Brain . x 350 Nerve -c^ll iieTfcid cf processes Swollen decjeneraiino Jferve-ceTL •■•., Tibrillatina Scavenger- cells. Scavenger elements filled -mih granules. ■i-w-r^'^l ni.^i.rilearaiei and surrciindtd ::lar debris. TT^ i o ATAXIC TABES AND GENERAL PARALYSIS. 519 cerebral symptoms may entirely fail to manifest themselves, and the patient be sent from under asylum supervision, but suffei'ing from pronounced ataxy of the limbs, and other symptoms of tabes dorsalis. The bulbar symptoms of general paralysis are not necessarily a prominent feature ; the pupils may be unequal, and respond sluggishly or not at all to light ; the tongue and facial muscles may be somewhat tremulous, but the articulation is often clear and distinct. • On the other hand, the spinal symptoms will be striking features in the case ; the patient plants his feet in the manner of the ataxic upon a wide basis of support ; when he approximates them, he sways considerably and tends to fall ; if he closes his eyes he must inevit- ably fall ; he fails to walk backwards, and forward progression is accomplished by disorderly thrusts of the leg, first to one side and then to the other, the heels coming down with a forcible stamp. If he be placed upon his back, and be requested to resist extension of the limbs, he exhibits considerable muscular power, and the grasp of the hand may be unimpaired. On percussing the patella-tendons the knee-jerk is found absent, whilst the plantar and superficial reflexes may all be present. No anaesthesia or other sensory defect may prevail. As in tj'^pically tabetic cases, lightning-pains may still further cloud the poor victim's life, and be of so agonising a nature as to render sleep futile, and necessitate frequent recourse to morphia. In all cases it appeared to us that a connection could always be established between the more acute cerebral and spinal exacerbations. The ataxy, in such cases as we describe, is more frequently emphasised in both upper and lower extremities; in uncomplicated tabes it is the legs which chiefly suffer, and tlie arms may as we know escape. The ataxy, however, is a symptom which varies in degree from time to time, and is indubitably worse with coincident mental exacerbations ; the truly tabetic symptom — abolished knee-jerk — however, is persistent, never being regained. We have known an instance in which both ex- tremities were thiis ataxic; notwithstanding the patient was able to write a fairly intelligible letter, although with considerable painful effort and exhaustion. This was the case in the subject detailed by my colleague. Dr. Bullen,* where the patient, tortured by delusions of persecution, spent many hours at the sacrifice of much discomfort in writing down his morbid experiences and recording his accusations against his imaginaiy enemies. In this case, muscular sense was so far defective that he could not touch the tip of his nose with the finger, when the eyes were closed, after repeated trials, nor approximate the tips of the fingers of both hands. It would appear also from the "'' "A case of Locomotor Ataxy followed by General Paralysis of the Insane. " Brain, April, 1888. 520 PATHOLO(iICAL ANATOMY OF (ilONKKAL PARALYSIS. history of this case tliat th(! arms were first affected (the reverse of what is usual), since sk>venly writing first drew attention to the fact of manual inco-ordination. The pains vary much in character and distribution, tljey are usually sudden, sharp, and lancinating, described as like electricity passing through a limb; they may be described as tearing, agonising pains of momentary duration only, or as "flashings painS " as one patient described them ; or, again, there may be an intense burning pain over a localised spot, as the knee or foot, and occasional " g"irdle painS " supervene. RhGUmatoid pains are almost always complained of, and the patient will, at times, speak of a spasmodic jerk of the whole arm, due (as he says) to the pain ; or from the same cause the leg may suddenly give way beneath him, and he drops on his knees momen- tarily powerless. Thus in Dr. Bullen's case " there was momentary loss of power in right leg, with dimness of vision and confusion occasionally," also " hy perse sthesia over the area of Wrisberg."* Priapism and nocturnal seminal emissions occur at an early stage of the affection of the cord, and sexual proclivities are engendered at this period, often colouring the-, delusional concepts of the subject, his conversation and bearing being suggestive of satyriasis. Impotency follows, and as indicated by Dr. Gowers, usually when the cremasteric and ahdomhial reflexes fail to respond to normal stimuli. Hysteric symptoms often supplement the mental derangements, and a species of insane or hysteric cunning is a prominent feature. In these hysteric outbursts, we have seen one patient assault his wife with the most cowardly and uncalled-for violence ; others, who have plotted dex- terously and with cunning persistence and mendacity to damage the reputation of the nurse or attendant administering to their wants ; and others, who have been most foul and obscene in their language. This association of hysteric states in the tabetic general paralytic should be remembered, since they are apt also to simulate symptoms and to deceive grossly, if too much reliance be placed upon subjective indications. Delayed conduction along the sensory strands is known to be of frequent occurrence in tabetic subjects at a certain stage; this we have witnessed in a tabetic general paralytic to the extent of twelve seconds, which elapsed betwixt pricking the sole of the foot and the registering of the sensation felt. Gastric, laryngeal, and rectal crises have all been recognised in this neurotic condition, and are so severe at times as to render the patient desperately and determinedly suicidal. Tabetic General Paralysis. — To proceed to the more frequent * Loc. cit. gp:nuine tabetic form. 521 class of tabetic cases in general paralysis where abolished knee-jerk has been detected, but where ataxy is absent or plays quite a sub- ordinate part in the symptomatic role, we find that a striking feature in the mental disturbance is the almost universal prevalence of melan- cholic depression, the dejected, hopeless aspect of the patient notably contrasting with the beaming expression of the typical paralytic. A basis for such depression is usually found in a persistent and torment- ing sense-hallucination, to which they are prone, and which is not unusually of a sexual nature. One case long observed by us was subject to the persecution of a woman's voice from the neighbourino- town, which haunted him whenever he went out of doors, and which prompted him to mari-y her; the hallucination co-existed even with intense depression and noisy weeping. It is in these hallucinatory states we find an explanation for another frequent association, that of suicidal feelings which peculiarly characterise this class of cases. Almost all such cases have made determined attempts to take their own life by drowning, hanging, strangling, or like desperate means, prior to their admission to an asylum ; and their subsequent history is only too confirmatory of this dangerous impulsive tendency. As dementia, however, advances, the more acute melancholy usually declines and is replaced by sullen gloom varied by fitful periods of cheerfulness, in which we perceive the characteristic features of general paralysis — the egoistic state and optimism ; the delirious agitation of the purely ataxic forms we do not observe in such patients. Occasionally, but rarely, optimism may be from the onset a prominent feature; there is in such a case advanced dementia. Thus one subject rambled continuously upon his " thousands of champagne, hundreds of thousands of cigars, and his five hundred sons and daughters." The aspect of the patient corresponds to the mental state ; it is usually one of gloomy dejection or querulous dis- content, in which the vacuous expression of dementia is apparent; the brow is often corrugated from the persistent frontal head- ache so frequent here, and the hair is often rubbed ofi" the frontal region, or off" the whole of one side of the head, by the patient's hands; the skin is swarthy or earthy in tint; there is always a notable degree of atonicity in the facial muscles, and, indeed, throughout the musculature of the limbs. Upon the least excitement tremors of the facial muscles are induced, but no twitching; the lips parti- cipate in the same unsteadiness, and the tongue exhibits a fine fibrillar tremor; speech is impaired, articulation being slowed, or blurred and thick, or a little quivering; it is never explosive. The oculo- motor symptoms characteristic of general paralysis were present in all the cases observed bv us. 522 PATHOLOGICAL AKATOMV OK EPILEPTIC INSANITY. PATHOLOGY OF EPILEPSY. Contents. — Modern View of its Nature — An Impalpable Trophic Change— Objections to Methods of Examination — Change in Elements of the Second Cortical Layer — Fatty Ciiange in Nuclei of Nerve-Cell — Common also to Alcoholic Insanity — Vacuolation of Nucleus — Ultimate Break-down of Nerve-cell — Implication of Motor-Cells- -Absence of Vascular Implication — Functional Endowments of Nucleus — Resistance of Cell to Discharge — Nutritional lihythm— Significance of Size of Cell and Nucleus — Primitive Type of Nerve-cell — Degraded Type of Nerve-cell — Cell-couformation as indicative of a Convulsive Constitution. The morl)icl histology of epilepsy is confessedly an obscure question if we confine our attention to those seizures in which coarse brain- disease and naked-eye changes are not appreciable. Only recently Ave have the authority of Dr. Gowers to the effect that there is little likelihood at present of our knowledge of its pathological nature becoinincr more definite, and that — " The chanjces in the nerve-centres are jDrobably of that fine kind which is revealed only by altered func- tion, and elude the most minute research." There exists a wide- spread community of opinion that the pathological anatomy of epilepsy, whatever it be, is the expression of a grave nutritional disturbance of cell-protoplasm, a nutritive disturbance which need not express itself in palpable morbid change even to the higher powers of the microscope. From this opinion, however, we must dissent ; for it appears to us that a morbid appearance of the cortical cell does exist of a highly-characteristic nature, when the cortex is the subject of careful examination by t\\e fresh methods of research. Nor does it appear strange that the morbid change alluded to has been overlooked, since the usual methods of preparation are often the least adapted for revealing it ; the chrome salts subjecting the cell to very important alterations which obscure the actual state. In the first place, the nervous elements of the cortex involved are the smallest met with ; and, in themselves, are not the most clearly demonstrable in a state of health. Again, attention is likely to be distracted by the less-important changes in cells of greater magnitude, where morbid appearances are more pronounced features. In the next place, the tissue-staining is liable to obscure the early appearance of disease unless cautiously performed, and more especially the employment of osmic acid of too high a percentage, or for too prolonged an action. The change in the cell alluded to is not peculiar to epilepsy ; it occurs in other diseases, and especially alcoholic brain-disease, but never to so marked a degree and limited to such special cortical areas as in epileptic insanity. The nerve-elements are not the only ones to present morbid implication, for the connective-element or neuroglia is, as long known, invariably in excess of the normal. To describe the CHANGES IN NUCLEUS OF NERVE-CELL. 523 nerve lesion first. The small irregularly-shaped nerve-cells, occupying the position of the second layer of the cortex, exhibit a degenerative change which is so far peculiar that the nucleus of the cell is the earliest portion affected ; the cell-protoplasm being apparently second- arily involved. The centre of the nucleus is occupied by an extremely-bright, highly-refractile, spherical Ijody — obviously of a /a^^y nature. If the cell be stained by the aniline blue-black the morbid body appears as an unstained bright, spherical bead in the centre of the deep blue-black nucleus ; the cell-protoplasm around being in its place differentiated by its lighter staining. In many of the surrounding cells no further change may be observed ; but, closer observation shows that either the refractile body has increased so as to occupy the whole available space in the nucleus, the boundaries of w-hich are still mapped-out by a deep-stained circle, or that two or more of such bright refractile bodies present themselves within the nucleus, or that the nucleus itself is no longer apparent within the cell, the highly refractile body (in size and outline like the nucleus) being its presumed representative {PI. xi., B.). Although the more usual aspect presented is that of a bright spherical droplet of oil, it is by no means invariably spherical, but may assume a crescentic, oblong, or irregular contour. Minute as these nerve-cells are, the strong contrast established betwixt the bright lusti'ous centre and the deep blue-black aniline stain of the surrounding nucleus, renders the change so distinct that, when once the attention is directed to it, a 1-inch objective suffices to reveal it readily as a wide-spread change in the series of the second cortical layer of cells. It is not here assumed that cells in other layers wholly escape a similar implication, but that, whilst such a nuclear change may be detected here and there in the small and large pyramidal cells of the succeeding layer, it is not an exceptional, but a most fi-equent, or universal, change in the second layer of the cortex; often every cell within a large field still retaining its nucleus, is seen flashed within by this bright morbid spectrum {PL xi., B.). When the change has pro- gressed so far that one-half of the nucleus is occupied by the morbid substance, the former appears to have lost its selective capacity for the aniline reagent, stains poorly, and is but faintly differentiated from the enclosing cell ; and, as the fatty change proceeds, any remaining nuclear mass presents so delicate a stippled shading that it fades ofi' into tlie cell-protoplasm, and is with difficulty distinguished therefrom, or is wholly lost to view. It is interesting to observe the persistence shown by the nerve-cell despite the degenerative change in its nucleus, and it is only later on in the stage of dissolution that the cell-proto- plasm betrays evidence of degeneration. That the cells ultimately 524 IWTIIOLOGICAL ANATOMY OF EPILEPTIC INSANITY. break-down is sufficicnitly evidenced by the paucity of elements in this layer contrasted with wliat is seen in the healthy brain, and by the abundance of fragmentary residue left ]>y the process of disintegration at this level of the cortex. The more advanced stage of this fatty nuclear change reveals a VaCUOlatGd condition of the cell, which becomes even a more striking feature tlian the simple fatty change. This vacuolation is evidently attributable to the bursting out from the cell of the globular bead of fatty substance, leaving the cavity containing it as a very conspicuous object of sharp-cut marginal contour. Usually the cell maintains its original contour, whilst a large cavity occupies its centre, as large as is consistent with the capacity of the cell, so that a perfectly spherical outline is maintained within an angular or pyramidal boundary, the merest rim of stained protoplasm (thickest where the processes emerge) bounding this cortical vacuole (PL xii.). At times the escape of these contents involves a large margin of the cell, rupturing and destroying its lateral, or its basal, periphery ; still the remaining protoplasm else- where maintains a rigid skeleton of the original cell, so that little real distortion of the less-affected portion of the cell exists. The evidence of morbid change in the surrounding protoplasm of the cell exists not only in the rigid retention of the form of the enclosed cavity, but also in the presence of pale spots indicating the degeneration of its mass, which are, however, of far less lustrous aspect than the nuclear contents. Scattered amongst the less-diseased cells of this layer we find angular fragments of destroyed nerve-elements, or sheaves of apical processes completely dissevered from any relict of cellular structure. This extreme degree of change, now described as vacuola- tion of the cell, may occupy the whole of the second layer of the cortex; but, in certain cases, it has been found to affect every layer down to the spindle-series of cells inclusive. When the larger cells are the subject of this change, the cell-protoplasm presents aggregated globules of morbid material, obscured by the deeper staining of healthier protoplasm ; yet, pale by contrast, it gives the cell a peculiar rugged mulberry-like aspect. The large " ganglionic " cells suffer very unequally in different sub- jects and at different sites. In early stages of implication they appear swollen, and take up an intense staining of their protoplasm, so as to obscure their contents in aniline blue-black preparations. Such cells, in mounted preparations present an unusual relief, with clear-cut contour, very unlike the same cell in a further advanced stage of degeneration, and are much more sharply defined in this state than in health (Fl. xii., deeper layer). Pigmentary degeneration of a limited portion of the cell may be seen, whilst in the darkly-stained protoplasm EXTENSIVE VACUOLATION OF NUCLEI. 525 three or four paler spots are seen, somewhat refVactile and gleaming through the superimposed protoplasm. Many of such large cells are swollen and globose, maintain their lateral and basal processes, Ijut have no apical process, or merely a stunted one attached ; they are uniformly stained of a pale tint throughout, the nucleus having dis- appeared. When still further degenerated these cells present a blurred outline, as if from fatty liquefaction of their contents; or an extremely faint ghost-like representative of the cell alone remains. With this fatty, nuclear change and vacuolation of the cells of the superficial cortical layer, we observe no associated vascular change ; the vessels may be somewhat coarse, and distended more than usual, but no extreme alteration is observable in the tunics of the vessel, of course excepting such as may be attributable to other agencies, such as the senile or alcoholic degenerations, or the complication of tubercle or of syphilis. Nuclear proliferation along the adventitia is rarely seen in epileptic insanity. In like manner, we do not meet with the presence of sjnder-cells, which permeate the cortex and medulla where vascular lesions afi'ecting the blood and lymph-channels prevail. Thus, in the morbid anatomy of epileptic insanity we find a special freedom from nuclear proliferation, from vascular degeneration, and from hypertrophic states of the lymph-connective system, which obtrude themselves in alcoholic cases and in the subjects of general pai^alysis. Patholog'y. — The essential nature of epilepsy is that of an abnormal discharge of nerve-force from the higher cerebral centres in the cortex, an " occasional, sudden, rapid, and excessive discharge " {Dr. Htighlings- Jackson). It matters not, for the essential character of this afliection, whether the phenomena are sensorial almost exclusively or motoiial, whether the sphere of mind is specially involved, or whether there is the fullest development of the epileptic spasm; the essence of the disease consists in this excessive local discharge.'" A nutritive irrita- bility underlies the morbid activity, and invariably expresses itself in some one or other morbid change recognisable in the structural elements of the cortex. As we have seen in such cases of epilepsy, where mental disturbance predominates and actual insanity co-exists, we have a notable affection of a special series of cells, not exclusively seen, however, in this disease, for it likewise prevails in other con- vulsive afi'ections, such as chronic alcoholism wherein spasmodic discharges of nerve-energy are frequent. The extensive nuclear degenerations which we have described must issue in the death of the cell. We know little, for certainty, as to the * Ou the origin, essential uatiire, ami conditioning factors of the nervous dis- charge, see a masterly analysis in Dr. Charles Mercier's recent work — IVie Mei'vous System and the Mind. 526 PATHOLOGICAL ANATOMY OF EPILEPTIC INSANITY. functional endowments of the nucleus, but we may recognise its presence in all conditions of active growth and functional life in the cell, whether it be a nerve-cell or element of other tissues, including the phenomena of karyokinesis. With its atrophy and disappearance we find associated declining functional activity and ultimate degeneration of the cell itself. We have seen elsewhere that there is much reason for re- garding the cells which prevail in this layer of the cortex, as per- taining to this sensory type of nerve-element, and that an organic connection subsists betwixt them and the large motor elements dis- tributed at a lower level ; in fact we may, perhaps, regard these individual layers as constituting a highly-complex sensory-motor arc, of which they are the respective poles. What is the functional relationship existing between these elements ? That these presumed sensory units have an inhibitory control over the subjacent elements, and that, lacking such control, their discharge will be subjected to the periodicity of the nutritive rhythm is very probable. The changes presented by the cortical nerve-cells have long led us to regard the nucleus as subserving an important role in the functional activity of the cell ; that its displacements, distortion, degeneration, enfeebled vitality,* and its absence are constant accompaniments of cerebral disturbances characterised by loss of inhibitory control.^ From this point of view, we have been accustomed to regard the proportionate size of nucleus to nerve-cell as indicative of the inhibitory controlling capacity of the cell in question — its own resistance to dis- charge. Hence, these minute elements with large nuclei in the second layer would possess a far higher degree of resistance to nervous discharge than those of lower levels, in which the nucleus bears a far smaller ratio to the surrounding cell-mass. Thus in these higher levels nerve- discharge would be impeded, and the resistance and time-element charact- eristic of the mental operations would come into play. Certain it is that in such cases whei'e nuclear degeneration has proceeded far in this layer, there is a motor and mental instability characterised especially by periods of nutritional rhythm. In like manner, the cells of the motor area are proportionately large, and subserve the function of storage of motor energy ; but their nucleus is small in proportion * As probably ilhistrated in its feeble staining to usual reagents. t Nor is this supposition opposed to the results of Kussniaul and Tenner upon the effects of sudden loss of large quantities of blood. Suddenly-induced anaemia hy withdrawing the requisite pabulum would directly affect the nuclear centres of cell-life, which are recognised as actively operative in the nutrition of the cell ; the withdrawal of such pabulum would be equivalent to a total arrest of such function, to the virtual paralysis resulting in the discharge of nerve-energy from the cell expressed, on the mental side in loss of consciousness, and on the physical side in general convulsions. THE MORBID NERVE-CELL IN EPILEPSY. 527 thereto, and their resistance to discharge consequently slight, their functional equilibrium is more readily affected ; their greater mass requires augmented nutritive resources to reinstate them subsequent to their discharge (Ross). It has already been indicated in discussing the etiological relation- ships of epilepsy that heredity plays a prominent role, and that epilepsy, direct or collateral, occurs in a large proportion of cases; with these are associated ancestral intemperance, which likewise is an important factor. It becomes, therefore, a question worthy of consideration whether we have here to recognise in the structural modification of the cell the physical basis of such hereditary transmission; is it probable that the nuclear and cellular change bears the imprint of ancestral vice? That the inflated spheroidal cell of epileptic idiots is a distinct reversion (or, at least, an undeveloped stage) is doubtless true; not only does its conformation indicate its lowered type; its degenerated proto- plasm a sustained nutritional anomaly; its paucity of branches a restricted relational element of cell-life; and its nuclear change in form and position some vital peculiarity inconsistent with the normal activity of the cell : but we also have evidence of reversion in its case, in the appearance of such cells {i.e., of inflated spheroidal elements with few processes) in some lower forms of life, and we have elsewhere indi- cated their existence as a normal element in the cortex of the ape.* We see no reason, therefore, for doubting that when such cells occur in the cortex of a class who also bear the history of ancestral vices, such as epilepsy and drink, that it is the expression of a reversion to a more primitive type so induced. Here, however, we must distinguish betwixt idiopathic epilepsy in the adult, and those forms which are clearly due to gross central change, or such cases where epilepsy is but the accidental accompani- ment of developmental arrest. The onset of epilepsy in early life is recognised as highly ominous to the mental well-being, and it is undoubtedly an established fact that, although in adult life in exceptional cases, epileptic seizures may co-exist with great intellectual vigour, yet its occurrence during periods of active cerebral develop- ment in infancy and youth is attended by a profound change in such activities, and usually in their total arrest. This fact is often expressed in such terms as to imply apparently that the "fits" — i.e., the convulsive seizures themselves — are the agencies whereby the cerebral activities underlying mental evolution are injuriously affected. It must, how- ever, be borne in mind that the convulsive discharge in itself is not the factor in the arrest, but simply betrays the nutritional impairment (in itself the origin of the convulsive discharge, and, at the same time, * Trans. Roy. Soc, he. cit. 528 PATHOLOGICAL ANATOMY OF ALCOHOLISM. of arrested evolution). It is in the structural peculiarity of the cell that we must learn to recognise the origin of the convulsion, and of the stunted mental development which such vicious conformation symbolises. On the other hand, in forms of idiopathic epilepsy arising subsequent to the attainment of adult life, the more striking feature presented to our notice is the degradation of mind — its gradual obnubilation by progressive dementia. Are we prepared to recognise such distinction in the histological elements of the cortex? We think there can be but little doubt that in the latter cases {dementia) we simply witness a degenerative affection of the nerve-cell, which, apart from this, betrays evidence of a full developmental constitution. In the former (epileptic idiocy), however, we find an altered type of cell, a limitation of its connecting meshwork, and a conformation so decided as to at once indicate the distinction. Yet, underlying both forms, we still recognise that disparity betwixt nucleus and protoplasm, and the displacement or degeneration of the former, which to us appears to bespeak a convulsive constitution. PATHOLOGY OF CHRONIC ALCOHOLISM. Contents. — Morbid Change iu Cerebral Vessels — Scavenger-Cells in Outer Zone of Cortex — Sclerosis of Outer Zone — Amyloid Bodies beneath Pia — Implication of Motor and Spindle-Cells — Significance of these Changes— Deepest Layers more generally Involved — Early Vascular Implication— Aneurysmal Bulgings — Atheromatous and Fatty Change — Pigmentary Degeneration of Motor Cells — Scavenger-Elements in Spindle-Layer — Degeueratioa of MeduUated Nerve- Fibre — Sx^inal Lesions— Vascularity — Hypertrophy of Tunica Muscularis an Inconstant Feature — Eelationships to Chronic Bright's Disease — Sclerosis of White Columns of Cord — Spinal Degenerations in Ty^ncal Case — Implication of Clai'ke's Column — Immunity from Multiple Neuritis — Neurotic Heritage — Chronic Endarteritis— Fatty and Sclerous Tendency — The Brain of the Criminal Class — Exceptional Resemblance to General Paralysis — Coincidence of Grandiose State and Delusions of Persecution — Inconstant Vertical Implication of Cord — Constitutional State that of Chronic Bright's Disease — Exceptional Transition to Genei-al Paralysis — Significance of Arterial Changes — Affection of the Visceral System. The vessels dipping into the cortex from the pia are of undue size, coarse, and frequently tortuous, and their coats are in advanced stages of atheromatous and fatty change. The nuclei of the adventitial sheath are somewhat numerous, are freely proliferating, or their protoplasm is in a state of fatty disintegration (PL xvi.. Jigs. 1, 2). Far the more prominent feature, however, is the abundance of scavenger-cells which pervades the upper or outermost region of the peripheral zone of the cortex lying immediately beneath the pia ; these nucleated proto- Plate XV: iall ancjizLar cells of 4^^-^ lay tr —-jk «ifV)'l ^cff^ PefwasculaT izzzclei PeTtvasciilar niiclei Moior ISferve-cell and ,.-■ its mzt-riei'd -■rescel ■De^eneraiion of Apejc process •:** ti 7VeT-ire -ceZZ zxncierqoiTiq -»,'•;■--•?»■ — 7 7 , . -^ •• ^^ granuLar cLe^ene-rcLZ-LOTL. ' J)LsecLsecL OL-rie-riol&. Gr an.iilaTr iegener aiioii of T>Ter"\re - cells itl fif-tli lawyer of IvToioir Coi:te:K: ^^itli pirolif eTatioxL of peT#cell-u:lax &-p>eri = ^asc"ulaT TLitclei in a case of Clironic Alcoliolic InsarLity. X 210 . SpxdeT cells p-rclxfe-raivno. \ iDngeTieratinj Nerve- cell *M.--"devoxd ofmicleizs. )(\ ^:^^^ FeriYascixlar'TaxcleL crawdinc -Lvpon irralls of hlood vesset. Fii.2. J^-olifeTaizon. of _^ -nuclei on iii= " f] '■si-foTn-L cells \1 Axieiari sirtal cliia tation of PeriA^ascular sac. General Paralysis. X 210.. Cftan^es in deepest or Spinile cell layer of launxan Cortege. Chronic Alcoliolic Insanity. xl80. T)aTiiel3S0TLik Co, sc-ilp . CHANGES IN OUTER ZONE OF CORTEX. 52& plasmic bodies are everywhere seen, their branching processes forming a dense matting which converts the outermost fourth of this cortical layer into a closely-felted substance of minute meshes, the aspect of which differs strikingly from that normal to this region {PL ix.,Jig. 1). Whenever a blood-vessel passes downwards through the cortical layers, these scavenger-cells are more numerous, following the line of vascular channelling, and so dipping down into the nerve-elements of the second layer. The appearance forcibly reminds one of the increase of connective passing along Grlisson's capsule in a sclerosic state of the liver. This felted structure is always most dense immediately beneath the pia, where it is so far condensed as to take a deeper staining of the reagent quite recognisable to the naked eye. The depth of the whole peripheral zone is also perceptibly diminished, the outer fourth being distinctly mapped-off from the rest by its deeper tinge. We meet with this development in different stages; occasionally the cellular element predominates — young scavenger-cells are numerous, their fine extensions being widely scattered and sparse ; in other cases the cells are found of larger size, forming plump, amoeboid elements, from which radiate processes pass into a fine meshwork around ; still later, the protoplasmic masses have dwindled down or totally disappeared, leaving simply the dense, felted, fibrous structure profusely besprinkled with the still remaining nuclei {PL ix., /iff. 1). Beneath the pia, betwixt it and the surface of the cortex in the so-called eincerehral space, we often find a vast' quantity of amyloid bodieS, and the fact that these are abundantly recognisable in fresh sections from frozen brain is a sufficient refutation of the assumption that such bodies are not of morbid nature, but artificial products of alcoholic reagents used in preparation. Here and there along the walls of a blood-vessel a little heap of proliferating nuclei is seen, from which fibrous extensions pervade the cortex on all sides, giving the vessel a peculiar spinous aspect. The perivascular space is also seen distended by numerous lymphoid elements, and the nuclei of the sheath are often mapped-out by a linear series of oil-globules which alone remain to represent the degenerated element. Critically examining the second and third layers of the cortex, we find no very prominent lesion — a few of the lower pyramidal cells may be degenerate — but, until we reach the fifth layer of motor cells, no very obvious change is apparent in most cases {PL xyl,flcj. 1). These large cells, however, are in an advanced stage of fatty change, and together with the layer of spindle-cells immediately beneath, are undergoing extensive disintegration and absorption {PL xvi., fig. 2). 34 ■530 PATHOLOGICAL ANATOMY OF ALCOHOLISM. Can we explain this apparent anomaly of the escape of the superjacent layers of nerve-cells, and the extensive implication of the outermost and deepest layers betwixt which they lie ? A special selection of certain layers by the morbid process appears to be evident here ; and may be a fact of great significance. In the first place, we must call to mind the fact, that the outermost cortical layer represents the apical distribution of the large, deep- seated cells which have been presumed to possess motor endowments ; and that their poles, therefore, are (in the early stage of general paralysis, as well as in alcoholism) affected by the sclerosic change proceeding in the outer layer of the cortex, and that these cells are, therefore, affected by a degenerative change ere the morbid process extends deeply into the small elements of the second and third layers. But simultaneously with this an invasion of cortical-elements also takes place from below — i.e., from the medulla of the gyri, and this morbid process spreading upwards involves both spindle and motor elements successively. The cerebral cortex presents, therefore, in such cases very notable morbid change ; and one specially characterised by the greater concentration of the lesion in motor realms of the hemisphere, as well as by a somewhat definite restriction to certain layers of the cortex, to the exclusion, more or less, of the other layers. The deepest cortical layers are those more especially affected ; cases being met with where the uppermost layers show no morbid indications whatsoever. The vascular, nei"vou3, and connective elements all participate in the change, and it thus becomes of interest to learn which of these tissues is primarily involved and, therefore, plays the more important role in establishing the pathogenesis of chronic alcoholic insanity. A careful study of a series of such cases would lead one to infer that the vascular is the first tissue involved in the morbid evolution. The long, straight vessels of the cortex are peculiarly liable to these changes, and where they dip down deep into the spindle-series of cells, such vessels present gross lesions of their tissues, as also of the immediate neighbourhood around. The vessels themselves are enormously and unequally distended, showing numerous ampullae or aneurysmal distensions, usually fusiform in character, their tunics crowded with nuclear proliferation. Care- fully-prepared sections of frozen cortex often appear riddled by a large number of circular holes, with sharp-cut edges, as if punched out of the brain-tissue; or by long fusiform channels, the site of diseased vessels which may have dropped out ; or still convey distended vessels, the walls of which are mottled by atheromatous change, whilst a peculiar IMPLICATION OF NERVE-CELLS. 531 albuminoid material (unstained by aniline) fills their cavity or is effused around their ruptured orifices. The nervous, as well as the connective, elements of the upper three or four layers of the cortex may exhibit no morbid change, but at the site of the large, so-called motor cells, constituting the clustered groups of the central gyri, we discover a notable degeneration. These great nerve-elements are much swollen and rounded in contour, and, in lieu of their usual extremely delicate protoplasm, present a rough granular aspect inter- nally, which often takes an intense staining from aniline, leaving a portion, however, quite unaffected by the reagent and of a coarsely granular and often yellowish hue {PI. xvi., fig. 1). Such cells are frequently seen deprived of their apical processes by a veritable degeneration. At its connection with the cell itself this process may be greatly and irregularly swollen and pigmented, beyond which a sudden attenuation occurs, and, after a slightly-contorted course, it disappears entirely (see several instances in PI. x.yi.,fig. 1). Another appearance universally presented by these degenerate cells is the abnormal, coarsely-defined boundary-wall of the cell, which, as we know, does not exist as a separate constituent in the normal cell of health, or, at all events, cannot be difierentiated from the protoplasmic contents in fresh-prepared sections from frozen cortex. The formation of this cell-wall, betwixt which and the enclosed protoplasm a mass of pigment collects, the former shrinking as the latter encroaches upon the cell-contents, is a constant feature in all cases of alcoholic degeneration of the cortex ; it brings the cell into a peculiarly notable relief, which is observed in other degenerative affections of the cortex. These large degenerate cells have usually several short, stunted, and swollen processes to which nuclei adhere. Three-fourths of their cavity may be occupied by coarse, granular, golden pigment, and the stained protoplasmic residue exhibit a few glistening refractile oil-globules, or one large circular cavity (vacuole), from which such oil-globules have forced their way out, the protoplasm in such a case not filling the vacuum. Down in the lowest layer of the series — the spindle-cell formation — we come suddenly upon large developments of scavenger-cells, which above this level were not apparent. Such elements, characterised by their spider-like appearance, are scattered profusely upon the coarse blood-vessels of this region (above referred to), and extend their rami- fying processes in all directions around (PL xyL, fig. 2). The spindle-cells, moreover, are themselves covered by heaps of nuclear proliferations which often entirely conceal them from view, so that their position and course are usually mapped-out and alone indicated by these little nuclear accumulations. One is also struck by their greatly diminished 532 PATHOLOGICAL ANATOMY OF ALCOHOLISM. number, and by their frequent pigmentary change where the cell- contents are visible. The conclusion forced upon us by the appear- ances presented is that they are undergoing rapid degeneration and removal through the agency of the scavenger-corpuscles, which, as previously explained, act in the capacity of "phagocytes," and devour the nerve-elements. In PL :x.Yi.,Jig. 1, representing the large motor cells, we observe three large elements with truncated summits under- going marked degeneration. Above, there is a similar cell, in which the greater part of the apical process is pigmented yellow, whilst at its base a coarse vessel, crowded with a heap of nuclei, is seen. Many small cells are also scattered about, covered with a rich nuclear proliferation. In fig. 2, which represents the same cortex but at a lower level, the spindle-cell formation is seen, sparsely scattered with nuclei, but the site of a rich colony of scavenger-corpuscles. The paucity of the spindle-cells, which, at this site, should be most abun- dant, is well seen in contrast with a section taken from sensory realms where scavenger-cells are not formed (to the right and below in fig. 2) ; the cells are not pigmented, but are covered with nuclei. The basal or axis-cylinder process of these large motor cells is a very persistent struc- ture in most degenerative aff"ections of the nerve-cell ; and, as we have seen, whilst the apical process readily breaks down and degenerates at an early stage, we yet find that this axis-cylinder process jiersists. If, however, the medullated nerve-fibres passing up from the medullary core of the gyrus into these lower regions of the cortex be examined, a very striking change is apparent. In fresh sections of healthy bi-ain these fibres are not stained by the aniline method ; the medullated sheath prevents the reagent gaining access to the axis-cylinder. In certain degenerative conditions, however, a change occurs in the medullary investment, probably of a fatty nature. The medulla is removed or greatly attenuated, so that the axis is exposed and stained readily by this reagent, and then it is apparent that the axis-cylinder is itself greatly swollen and often irregularly fusiform. The identical appear- ance is also observed in senile decay of the cortex, and here often to a much more striking degree than in alcoholics. Upon the medul- lated investment, where it appears, spider-cells are often seen abun- dantly ramifying. The medulla of the convolutions in cases of chronic alcoholism, therefore, presents very notable divergence from the normal appearance, which at once arrests the attention in preparations of fresh brain, stained by the aniline methods, the straight axis-cylinders being prominent objects crowding the field in bundles which can be traced for great distances through the medulla. On scanning the white matter, we are also struck by the large number of extremely coarse dilated vessels, which afibrd us evidence VASCULAR LESIONS — SPINAL IMPLICATION. 533 also of grave structural change. These nutrient twigs are not only generally dilated, but present along their course frequent fusiform and sacculated aneurysmal distensions, often of large size, the coats of which are notably diseased. These aneurysmal sacs in many cases will have fallen out of the section, giving rise, as described in the cortex above, to clean-cut circular or fusiform openings, which are often very numerous in such subjects. The sacculated dilatation is often the site of a large accumulation of hsematoidine granules which crowd its interior, and are scattered profusely over its surface. Occasionally the vessel is seen plugged (possibly by a fatty embolus) ; the proximal distended part may have ruptured, extravasated blood and hsemato- idine crystals crowding the field around; or a more frequent appearance (seen, in fact, universally over the field) is the distended vessel with the intima in a state of atheromatous and fatty Chang'G, and the nucleated element of the sheath also undergoing fatty disintegration ; the walls covered with young* spideP-CellS, and bristling with their processes on either side (PL x.Yi.,fig. 2). Large patches of fatty material containing oil-globules and granules are seen along the coats of the blood-vessels, in fresh-stained aniline preparations. As unstained, colourless, and highly refractile spots, contrasting with the healthier and stained tunics around, such patches have a swollen, semi-opaque aspect. All the more degenerate nutrient twigs are the site of a rich colony of scavenger-cells in their various phases of development and retrogression ; such elements often look like simple nuclei, until, carefully focussed, their delicate protoplasmic mass and radiating processes are discerned. These scavenger-elements are traced in great abundance throughovit the white matter of the convolutions. Plugged vessels, also, appear frequently ; the tissue on either side being often deep-stained and sclerous in character, and the axis- cylinder in the neighbourhood unduly large and ii-regularly swollen. The medulla shows a patchy staining of its ground-work to low powers, which on the use of higher objectives is resolved into light, unstained areas having few or no nuclei, and darker stained areas of a fine- punctated aspect (the result of fibrillated spider-cells), amongst which are many nuclei. Spinal Cord. — Throughout the whole extent of the spinal cord we find increased vascularity or, at least, a more obtrusive presentation of vessels than is normally observed here. The vessels supplying the posterior columns are those most afiected, those of the anterior columns least involved, whilst the lateral tracts suffer almost as frequently as the posterior. These nutrient branches become pro- minent objects by reason of the great increase in the thickness of 534 PATHOLOGICAL ANATOMY OP ALCOHOLISM. their walls ; a feature which is exceptionally striking with respect to the smaller vessels between 4 /x and 8 /i in diameter, the open lumen of such divided vessels rarely being over one-third or one- fourth the whole dia^meter; but vessels measuring respectively 18 /x and 36 /i across also have not infrequently a lumen of but 5 /x to 10 /i. This increase in thickness is seen to be due entirely to their muscular coat, which in small vessels of 8 /a, diameter will attain the thickness of 2 (h. The increase in the muSCUlariS encroaches much upon the cavity of the vessel itself, and the non-elastic intima is conse- quently thrown into a plaited form, or has a condensed deeply-stained appearance mapping it off from the tunica media ; occasionally, the vessel is occluded by this increase in its muscular tunic. It is not all cases of alcoholism that exhibit this notable thickening of the muscularis ; for in some we observe far less concentration of the disease upon the vascular supply of the cord than upon the vessels of the cerebral cortex. The following averages represent very conclu- sively the dimensions of the lumen relatively to those of the arterial tunics in cases where spinal symptoms were a notable feature, as con- trasted with those in which no special symptoms presented them- selves : — Vessels in Chronic Alcoholic Insanity. Presenting Spinal Symptoms. i Cases Devoid of Spinal Symptoms. Whole Diameter of I Diameter of Vessel. Lmnen. VesseL Lumen. 18 /u 5 m 27 /x 9 M 37 /^ 10 ^t 18 m 13 /u 27 M 23 M 32 M 19/11 The change in these vessels appears to be identical with that increase of the muscularis which has now been long recognised in chronic Brig'ht's disease, since its discovery by Dr. Geo. Johnston ; no notable fatty change implicates the intima; the vessels do not here, as elsewhere and in the brain, necessarily show atheromatous degeneration ; nor does the adventitial sheath betray evidence of a reactive inflammatory condition. The immediate environment of the vessel shows, in most cases, a normal condition, beyond the prevalence here and there of amyloid bodies in juxtaposition to the vessel. Occa- sionally these bodies become very profusely scattered throughout the whole extent of the white columns of the cord, more especially around its periphery and following inwards the direction taken by its nutrient branches. In these latter cases we find, however, indications of an inflammatory change — a chronic meningitis; the pia being often greatly thickened, its vessels much distended, and its meshes containinsf Plate XVII. S-pider -cells follo-ivinq i^asciilar trad Coarser- vascular hraricKes of S-pider- cell. Spider cells with, lona deliccLze fibrils. Flexus of finer fibrils. Scaven.ger eleiaents (Spider- cells) in p eri^plieTal zone ox- 1^ layer of tlie Coxtex — IxxanaxL "braixi.. X 240 . DISTRIBUTION OF SPINAL LK.SIONS. 535 leucocytes and inflammatory products. The connective trabeculse extending from the pia into the substance of the cord are extremely coarse, and a diffuse sclerosis thus originating often affects all the medullated tracts of the spinal cord. Thus, the peripheral zone of the cord is especially implicated ; and the sclerous tissue follows more readily the course of the larger blood-vessels, so that the median raphe of the posterior columns is a favourite site of this sclerous change, which often extends over the whole of the columns of Goll. The coarse deep-channelling by blood-vessels, and the profusion of scavenger- cells, give to the posterior columns a notably morbid aspect. In a typical case examined the antero-lateral columns were extensively implicated ; the pia was greatly thickened ; and a patchy diffuse sclerosis affected the anterior root-zone, and the lateral columns, together with its direct cerebellar tract. The various segments of the cord also showed much irregularity in distribution of the morbid change, and the non-systematic nature of the lesion was clearly demonstrated. The posterior nerve-roots, also, indicate a similar interstitial change ; bundles of atrophied nerve-tubuli being seen imbedded in much deep- stained connective-tissue. Atrophic changes, also, had involved the cell-groupings of the anterior cornu ; and the postero-lateral group in the cervical region on one side was notably affected, few cells remain- ing, and these degenerated as the result of the invasive sclerosic tissue. The intermedio-lateral group was (in the lower cervical) in a similar state of degeneration on the side corresponding to marked sclerosis of the lateral column. The intermedio-lateral group of cells appears peculiarly prone to degeneration, and other cell-groupings — e.g., the antero-lateral and the internal of the anterior horn on the same side are thus in like manner involved. Clarke's vesicular COlumn is likewise liable to implication in these affections. Cornual changes are by no means infrequent, and are of special interest here in relation to the implica- tion of special cell-groupings which are apt to present themselves. Thus, in the dorsal region, it is not unusual to find the cells of the intermedio-lateral column of one side plump and healthy ; those of the opposite side being utterly degenerated in the midst of a dense sclerous tissue ; the same unilateral lesion of Clarke's vesicular column may also be observed. In the former class of cases, the naked-eye appearance presents no abnormality in sections across the cord, and it is only in the second series, where wide tracts of connective trabecule traverse the columns of medulla, that we appreciate morbid change; which is still more apparent when the stained section is cleared up and examined. That the posterior nerve-roots do occasionally participate in the change has already been stated ; but, that the spinal changes originate in the 536 PATHOLOGICAL ANATOMY OP ALCOHOLISM. affection of the peripheral nerves is by no means probable ; they must be regarded as coincident affections. Frequent as multiple neuritis is amongst chronic alcoholics of the female sex, we do not recall any cases occurring in alcoholic insanity. That it is occasionally met with we do not doubt, although the jjercentage of insane females subject to chronic alcoholism is small ; but we must bs prepared to regard cases of chronic alcoholic insanity as presenting predispositions which more or less modify the tendency to peripheral implication of the nervous- system. Whatever ])e the explanation of this paucity of cases of multiple alcoholic neuritis amongst the insane community, certain it is, that alcohol in these predisposed subjects does tend to concentrate its operations chiefly upon the vascular membranes, first, of the brain and, next, of the spinal cord. Patholog'y. — The pathology of alcoholic insanity is but one chapter, though not the least important, in a long history of retrogressive changes to which the whole organism is subjected through the prolonged operation of this agent. Through the medium of the blood- vascular system, alcohol, by its ready absorption and permeability, is rapidly conveyed to the most distant parts of the organism, establishing wide-spread constitutional disturbances; whilst through the peculiar selective capacity of the nervous centres for this poison, it thereupon expends its primary and most potent influence. Although in all cases the nervous centres bear the chief brunt of its attack, it by no means follows that the subjects of chronic alcoholism suffer in the same way. In one, the gastric; in a second, the hepatic; in a third, the renal and cardiac symptoms may come to the front; whilst in others, the nervous centres express the special ^■irulence of the agent in their direction. Undoubtedly a neurotiC heritag'S plays a foremost part in thus predisposing to more exclusive determination of the morbid agency upon the higher nervous centres, just as those subjects predisjiosed to renal degeneration will, on the establishment of alcoholism, display the usual cardio-vascular changes of chronic Bright's disease. Beyond the limits of simple functional hyper-activity of the nervous centres induced by frequent indulgence in alcoholic drinks, its persistent use leads to organic change, first expressed in the vessel's wall by the direct irritating effect of the spirit on its tissue elements. A chronic inflammatory state leading to extensive atheromatous and fatty degeneration of the intima is the first apparent effect, associated with which we find parallel changes undergone by the adventitial sheath in the increase and fatty degeneration of its elements. Fat-emboli are frequently established in the smaller cortical vessels during the progress of these changes, and the extensive dilatation and aneurysmal states described above are probably direct results of the diminished resistance CIIHONIC ENDARTERITIS — STEATOSIS AND SCLEROSIS. 537 of the vessel, and paralysis of its muscular coat. An extensive endarteritis of a most chronic and insidious chai-acter affects the ultimate terminal radicals of the cortex, and, with the pre-existing change in the composition of the blood, leads to the devitalisation of the nervous tissues, undermining the nutritional stability of the nerve- cells. The subsequent change in the interstitial tissue around, and the nervous elements themselves, apparently depends much upon the subject's predisposition, which seems to be the chief determining factor in engendering the fatty or sclerous change which characterises these two classes of alcoholic subjects. In all alike, however, we find the tendency to a degradation of tissue in the replacement of the normal elements by new connective growth; but in some we find a special tendency to extensive fatty change in the nervous centres, so that the parallel degeneration seen elsewhere, as in the fatty or the sclerosed liver, seems to be also reproduced here. It is probable that the fatty change is altogether a tnore acute process, and the sclerosis the result of a much slower and more gradual poisoning of the tissues; the fatty Chang'e, moreover, is much more liable to be induced in the case of senile alcoholics. We may take it, that the changes observed in the cerebral meninges as well as in the soft investment of the cord, when affected, are undoubtedly indicative of a very chronic inflammatory action proceeding in the vessels of the membranes, and slowly involv- ing the upper cortical strata ; for thus only can we explain the frequent association of membi-anes opaque and thickened, and the permeation of the cortex along the vascular tracts by dense connective networks. Much of the opacity of these delicate membranes is undoubtedly the resulting change of years of excessive indulgence, for it is induced slowly in all cases of long-continued alcoholic indulgence, apart from the establishment of actual insanity; thus, in most criminals, who are notoriously addicted to drinking, we discover such opaque and thickened membranes, and this usually in the postero-parietal regions of the brain {Henry Clarke). Coincident with this implication of the membranes, a similar change is found throughout the nutrient supply of the medullated substance of the convolution, which, as before stated, leads to im- portant changes in the lowermost series of nerve-cells, the spindle- layer and the medullated nerve-fibres themselves at this site. It is obvious, upon examining several cases, that the one site may be chiefly affected to the greater or less exclusion of the other, and that, thus, a sclerous change in the peripheral zone of the cortex may preponderate over any morbid change at a greater depth, or that this deeper implication may be the more expressed feature, the pia- arachnoid being free from notable opacity and thickening. It is 538 PATIIOLOOICAL AN'ATOMY OF ALCOUOLISM. moi'e usual, however, to find both areas ail'ected, and this to a pro- found degree. Certain cases of chronic alcoholism approach, as we have seen, in their clinical features, the history of general paralysis ; and when we come to the morlnd anatomy, we find the membranes of the brain often presenting similar appearances, both as regards naked- eye aspects and distribution of lesion. The vascular implication, however, is far different, and cannot be readily confused. In the one (alcoholism) the morbid change is centred in the atheromatous state of the inner coat ; the numerous bulgings and fusiform dilatation being also highly characteristic of this chronic inflammatory implica- tion. The outer or adventitial investment does not show the enormous nuclear proliferation which is so notable a feature in general paralysis (P/. xvi., fig. 3); although in degenerated vessels it will be the seat of a profusion of scavenger-cells which entangle its walls in their processes. In the other (general paralysis), as previously stated, the morbid change is concentrated in the adven- titial sheath, and is a far more acute irritative process in the loose external tunic of the vessel, which explains the more rapid implication of the nervovis structures lying immediately around by direct extension. It is on this limitation of the more gross change for a time to the inner tunic of the hlood-vessels in chronic alcoholism, that the slow (yet progressive) impairment of nutrition of the nerve- centres depends, which so frequently issues in steady enfeeblement of the mental faculties, akin to the advancing imbecility of senile atrophy, in which similar changes of the vessel's wall occur. It is, on the other hand, in the early implication and rapid spread of morbid activity along the adventitial tunic of the vessels that the more acute changes are induced in the nerve-cells of the cortex in the general paralytic. When, however, superadded to the intravascular lesions, we find sclerous tissue permeating the peripheral zone of the cortex, we have an invasion of those most externally-disposed medullated fibres which are also involved in general paralysis {PI. y.\.,fig. 1). It is in such cases, probably, that the mental symptoms assimilate to those characteristic of general paralysis. The sclerous shrinking of the new connective formation around the extensions from the under- lying ganglionic cells, results in a degeneration which is ultimately transferred to these cells themselves, inducing the already-described pigmentary and fatty degeneration preceding their absolute destruction and removal ; but, this extensive atrophy of these large elements of the cortex is coincident only with the most advanced fox'ms of alcoholic dementia ; the earlier stage of vascular impairment, and the growth of young scavenger-cells in the periphei-al zone, ere the cells are themselves involved, being apparently associated with the maniacal Plate XVIII Swollen, degeneraied ITerve-ccll. Vascular p-rocess of Svider-cell i S-pinoTzs eoctensions Jrorr^ va.scu.lccr walls. -De gender diiTtp ITeTve.- celLs o-iia-cked. hxr 3n^.i'>-~-cell€. S-pvdLer-ce.ll v/iiK Us ■va-scvcLar px.ocess. Ariertcle. surrozzn^ded hu- Spi,djer elemenis. -Defeneration of Nerve - cells in Corterc with proliferation of the Spider or Scavenger- cells. Section from ftfth Cortical layer m Motor recicn. X 210. NATURE OP THE SPINAL IMPLICATION. 539 excitement and early delusional perversions of alcoholism. It is certainly a remarkable feature that in both afiections we get a similar implication of the vascular channels of the pia over the almost identical motor realms of the cortex ; that in both, the same nervous elements are primarily involved ; and that, clinically, there are presented to us so many features in common between the two afiections, that it often becomes a moot point for diagnosis. This peripheral implication of the cortex would appear to us to explain the grandiose feeling, so frequently commingled with the delusions of persecution, from which alcoholic subjects suffer ; the notions of wealth, of landed possessions, of exalted social status, which we find so often underlying delusions of restricted liberty, or of malign influence brought to bear upon them. When, howevei', the motor cell and axis-cylinder process are themselves involved, then we find the characteristic delusions of persecution predominate to the exclusion often of such optimistic states ; and the profound implication of the " motor element " of mind may call forth ideas of restricted volitional freedom and reactive capacity. In all the more characteristic phases of chronic alcoholism, we never fail to identify these profound lesions within the white medullated substance of the fronto-parietal lobe, associated with the degeneration and breaking-up of the large " motor- cells " and spindle-series. Whilst, therefore, the cortical lesions of general paralysis indicate an invasion from without inwards, affecting the sensory elements and apical (? sensory) poles of the motor-cells ; alcoholism induces, in addition thereto, extensive vascular changes from within outwards, implicating the medulla of tlie gyri, and effecting a destructive degeneration of the medullated fibres. Spinal Cord. — The morbid changes found in the spinal axis can scarcely be relegated, in any typical case of alcoholism, to one of the strict system-affections of the cord; they are too palpably of the nature of a slowly-encroaching sclerous change encircling the cord, originating in its investing membranes, and creeping inwards along the vascular tracts, and especially along the posterior median raphe. There is also, undoubtedly, a tendency in such cases to a frequent implication of the posterior nerve-roots, by a similai-ly-disposed lesion spreading into its structure from its perineural investment, inducing a change quite dis- similar in nature to that of the so-called multiple neuritis, w'hich also occurs in chronic alcoholism. The investing zone of sclerosis is by no means uniformly advanced at all points ; more frequently we observe a decided preponderance at certain definite arcs — e.g., the marginal arc of the lateral column, on one or on both sides ; or the segment im- mediately adjacent to the posterior nerve- roots ; or, occasionally, a section of the outer margin of the anterior root-zone; and, very 540 PATHOLOGICAL ANATOMY OF ALCOHOLISM. frequontly, the posterior median raph6, spreading thence throughout the columns of Golh Whence this tendency to arise at different sites? Wliat are the determining factors? Although we cannot reply to these questions with full assurance at present, yet it is a fact of no little significance that such lesions are, as in genei'al paralysis, dis- tributed along the columns which are in anatomical connection with discharging tracts at higher levels in the cerebrum ; and that, as in general paralysis, we find system-degenerations established apparently along columns in physiological sympathy with diseased tracts higher up, yet not hy morbid continuity ; so here, also, the functional dis- turbances aroused in the cortex may, probably, by inducing continuous engorgement along certain spinal ti-acts, by the hyperactivity of their conducting strands, determine to that region the chief morbid implica- tion. The symptoms accord with this mode of implication, for we first get decided evidence of a very chronic lejyto-menijigitis, which precedes symptoms of ascending and descending changes secondarily induced by the spread of the lesion inwards ; and, still later, we find the central grey matter and special cell-groups implicated, apparently by extension along the nutrient vessels, by the same lesion. That the symptoms vary greatly in individual cases is not surprising, as they wholly depend iipon site, and depth of imj)lication of the cord. The lumbar cord may be the first affected, and the deranged sensory and motor symptoms be limited wholly to the legs ; or, again, stiffness or spasm of the neck and retraction of the head may indicate cervical implication; or the dorsal region may be the site of most pronounced implications ; the vertical extent of the meningeal affection may be slight or universal. The constitutional state engendered in chronic alcoholic insanity is ideiitical with what forms the basis of chronic Bright's disease ; and as in this affection we have a multiplicity of local expressions of the morbid lesions, so, here, we find the tendency is towards a concentra- tion in the nervous centres ; atrophic states of brain, or of spinal cord, or of both combined, are thus induced from predominance of — {a.) Simple fatty degeneration of their nutritive vessels and tissues. (6.) From fatty degeneration associated with interstitial sclerosis. (c.) From diffuse sclerous, interstitial change. (d.) From periai'teritis and hypertrophy of the tunica muscularis. In the periarteritis, occasionally engendered in chronic alcoholics of a certain age, we probably see the pathological boundary-line over- stepped betwixt simple alcoholic insanity and general paralysis of the insane ; and we have resulting therefrom, in a more acute spread of the cortical lesions, what might be regarded as general paralysis accidentally evolved out of chronic alcoholism, or, as some would NATURK OF THE SPINAL IMPLICATION. 541 less correctly state the case, general jaaralysis caused by alcohol. Alcohol has its own role to play, and a most extensive one it is ; but, the tissue-changes engendered thereby are always as highly character- istic as are the morbid sequences of general paralysis, and we must seek to dissever from the latter disease our notions of alcohol playing the part of a direct etiological factor, in the sense of originating the primal tissue-changes by which this disease is characterised. In the notable thickening of the muscular tunic of the arteries seen in the spinal cord, in certain cases of alcoholic insanity, we find the general symptomatology points to the depravation of the nutrient fluids, to the especially-vitiated state of the blood, mal-assimilation, disordered digestion, deranged excretory functions, bringing in their wake the resultant changes in the arterial tunics. In such cases, as we have seen, the membranes of the cord presented no notable change, and no coarse sclerous bands of connective invaded the columns ; the symptoms, which were those of an ataxic paraplegia of very gradual accession, were explained by the great predominance of scavenger-cells along the commissural end of the raphe, with morbid vascularity of the posterior columns at this site, the vessels all presenting great hypertrophy of their muscular tunic ; a remarkable abundance of amyloid bodies was spread throughout the peripheral areas of the cord, and especially the posterior columns. The lateral columns exhibit a very fine punctated connective, which has induced a certain degree of atrophy of the nerve-tubuli, whilst here also the character- istic hypertrophied muscular vessels prevail abundantly throughout all regions of the cord. Nor must we fail to call attention to the fact of implication of the visceral column of the cord — the vesicular formation of Clarke. A very general implication of the blood-vascular system prevails ; the great vessels undergo fatty and atheromatous change ; and the circulatory centre itself — the heart — being an early sufi"erer, its muscle succumbs to fatty infiltration and degeneration, its cavities dilate, and its vital capacity is profoundly reduced. Corresponding changes appear in the large vessels at the base of the brain, which become atheromatous and distorted. It is this enfeeblement of centric circulatory energy, furthered by the retarded flow of blood in the minute vessels, which calls forth that compensatory increase of the muscular tunic of the cerebral and spinal arteries. Another factor, of great moment here for evil, must not be overlooked, that is, the diminished vis a fronte of cortical areas, which normally favours circulation ; a failure due to the devitalisation by alcohol of the nerve- tissue, and possibly the inherited enfeeblement of neui-otic descent. INDEX. Abdueens facialis, 21, 23. nucleus of, 19, 23. Acoustic striffi, 10, 20, 21. ,, tubercle, 10. Activity, restricted central, 133. Adherent pia, histology of, 442. Adhesions of pia, 441. Adolescence and alcoholic excess, 289. ,, and recurrent insanity, 208. Adolescent insanity, 334. ,, ,, blood in, 351. ,, ,, etiology of, .359-361. ,, ,, evolution of, .334. ,, ,, prognosis in, 362-364. ,, ,, treatment of, 364. Adventitial coat of arteries, 76, 82. ,, ,, of capillaries, 77. Affective insanity, 138. Ala cinerea, 10. Alcohol, efl'ects of, on animals, 306. Alcoholic insanity, 288-333. ,, ,, a convulsive neurosis, 291-.301. ,, ,, acute, 297. ,, ,, amblyopia in, 298. ,, ,, and suicide, 292. chronic, .303, .308. ,, ,, clinical forms of, 296. ,, ,, delu.sions in, 295, 296. ,, ,, dyschromatopsia in, 298. „ ,, evolution of, 306. ,, ,. fatty degeneration in, 537. ,, „ hallucinations in, 293. 298, 316, 320. ,, ,. muscular spasm in, 328. ,, ,, nature of attack, 291. ,, ,, nystagmus in, .328. ,, ,, pathological anatomy of, 528-541. ,, ,, jiredisposition, 291- 293. ^, ,, reaction-time in, 326, 327. ,, ,, relapses in, 299. ,, ,, scavenger-cells in, 529. I Alcoholism, amnesic fonns of, 309, 311. ,, amj'loid bodies in, 529. ,, arachnoid opacity in, 436. ,, classification of, 331-333. ,, climacteric and, 402. ,, cortical adhesions in, 44"J. ,, tlelusional forms of, 312. chronic, .303, .308. , , en V ironmental resist ance in , 315. ,, epigastric voice in, 317. , , epileptiform seizures in. .328. ,, general paralysis and, 538. ,, hypochondriasis and, 147. ,, impulsive insanity and, 186. ,, motor symptoms in, 322. ,, nerve-ceUs in, 529, 5.30-532. ,, object-consciousness in, .321. ,, peripheral zone in, 539. ,, senile insanity aud, 410. ,, sensorj' troubles in, 322. ,, sexual illusions in, 317. ,, spinal cord in, 532-536, 539. ,, symptoms of chronic, .308. types of, 333. ,, vascular affections in, 533- 535, 540. ,, visceral illusions in, 317. Allhutt {Dr. Clifford) on the optic disc, 171. Amnesia in alcoholism, .309, 311. ,, in senile insanity, 414, 422. ,, (transient) in G. I*., 25.3. Amphibia, brain of, 55, 57. Amphioxus, ,, ~M. Amygdaloid nucleus, .35, 52. Amyotrophic form of (J. P., 511-513. Anajmia, signs of cerebral, 130. Anaesthetics, action of, 122. Andral on cerebral hajmorrhage, 454. Angio-neuroses in G. P., 503. Angular nerve-cells, 64. Ansa peduncularis, 34, .35. Ape, cortex of, 97. Apex-process of nerve-cells, 65, 67. Apoplectiform seizures, 262. Aqueduct and central grey axis, 24, .37. Arachnoid, anatomical relationships of. 4.34. INDEX. 543 Anichuoid cysts, 4.37-441. ,, false membranes, 437- ,, liaimorrliage, origin of, 441. ,, ,, statistics of, 439-440. ,, opacities, 43G. Arcuate fibres of medulla, 12. Arijy/l-Iiobartson symptom in G. P., 265. Arndt on nerve-cells, 63. Arterial areas and softening, 451, 452, 491. ,, loops of cortex, 82. ,, supply of brain, 445. Arteries in G. P. , 494. ,, of cerebral cortex, 75. Arterio-capillary plexuses, 82, 85. Articulatory troubles in G. P., 258. Association of ideas, failure of, 164. Atavism in recurrent insanity, 204. Atrophy, cerebellar, 456-458. ,, cerebral, 454-458. ,, ,, localised, 456-458. ,, chronic cerebral, 407, 426. ,, ,, and Bright's disease, 429. ,, ,, blood-vessels in, 430. ,, ,, pulse in, 429. ,, ,, urea in, 427- 428. ,, senile, 417-455. Auditory nerve-nuclei, 19. Aura, auditory, 229. ,, epigastric, 181. ,, epileptic, 227. ,, gustatory, 230. ,, homicidal impulse and, 180. ,, oLfactory, 230. ,, organic or visceral, 230. ,, special sense, 228. ,, vasomotor, 230. ,, visceral, 230. „ visual, 229. Automatic segregation, 123, Automatism, ejiileptic, 186, 234, 235, 239, 244. ,, mania and, 123. Axis, central grey, 1. ,, cerebro-spinal, 1. Axis-cylinder, fibrillation of, 72. ,, process, 65, 67, 71, 72. ,, staining of, 74. Bain (Prof.) on animal appetites, 181. Basal ganglia, connections of, 33. ,, process of nerve-cells, 65, 66. Beevor's physiological experiments, 109. Berrjmaiin, sound-rod of, 21. Betz, giant cells of, 66, 95, 106. Birds, brain of, 57. Bladder atrophy in G. P., 285. „ troubles in G. P., 284. Blood in acute dementia, 161, 162. Blood in adolescent insanity, 351. ,, general paralysis, 288. ,, puerperal insanity, 370. Blood-vessels in chronic alcoholism, 533-5.35. ,, of cerebral cortex, 75. Blumenbach on bony falx, 436. Boll on spider-cells, 84. Bowel troubles in G. P., 286. Brachia of quadingeminal bodies, 37, 38. Brain of man and lower mammals, 98. Bright's disease and alcoholism, 540. ,, cerebral atrophy, 429, 534 Broca's cerebral convolutions, 61. ,, extra-limbus, 87. Bromism, 151. Buchnill [Dr. ) on mania and melancholia, 116. Bulbar paralysis and colloid change, 466, 467. Bullen (St. John) on cortical adhesions, 442. ,, locomotor ataxy in G. P., 519. Burdach, columns of, 5. ,, lamina meduUaris of, 44. Calamus scriptorius, 8. Calcarine fissure, 60. Gcdmnl on pachymeningitis, 486 Capillaries of brain, 76. Capsule, internal, 28, 33. knee of, 28. GarpeiUer [Dr.) on alcohol, 305. Oarville and Buret, 113. Cat, nerve-cells of, 68, 97. Cataleptic fixity of lind)s, 1 60. Caudate nucleus, 28, 51. Central grey axis, 1. Centre median of Luys, 45. Cerebellar peduncle (inner), 13. (outer), 10, 12, 13. ,, tract (direct), 7 Cerebral seizures in G. P., 259. Cerebritis, 448. Cerebro-spinal axis, 1. fluid, 437. Charcot on cerebral hemorrhage, 454. Chronic insane class, 189. Circulation, defective cerebral, 129. ,, Heuhiier and Duret on, 446. ,, mechanism of cerebral, 445. , , Moxon ( Dr. ) on cerebral, 445. Clarke (Henry) on alcoholism, 537. ,, (Lockh(irt), vesicular columns of, 3, IS, ,535, 541. Claustral formation of Mcynert, 70. Claustrum, 34, 54. Climacteric, alcoholic excess at, 402. ,, convulsive neuroses at, 184» 185. ,, recurrent insanity 205,210, 544 INOKX. Climacteric insanity, 392-405. ,, ,, Clouslon (Dr.) oi\, 401, 403. ,, ,, delusions in, 393. ,, ,, etiology of, 395. ,, ,, jMemou (Dr.) on, 403. ,, ,. prognosis in, 401. ,, ,, sexual illusions in, 404. ,, ,, statistics of, 398. ,, ,, transformations of, 398, 399. ,, ,, treatment of, 404. Clustered cells of cortex, 96. Colloid degeneration, 4(55-470. ,, bulbar paralysis and, 466, 467. ,, histology of, 408- 470. „ Kes/.eve7i on, 469. M'Kendrick (Dr.) on, 465. Tuke (Dr. Batty) on, 465. Commissure, anterior, 30. ,, posterior, 37, 48. Compensation, functional, 113. Conarium aud brachia, 37. Congenital defect and relapses, 205. Conjugate deviation in G. P., 262. Connective cells of brain, 79, 80, 497, 505. ,, matrix of brain, 78. Consciousness, faint aud vivid states, 1 1 S. ,, lapsed states, 120. ,, object- and subject-, 116. Consecutive dementia, 190. Consensual movements in G. P. , 275. Convulsions, senile, 408. Convulsive neuroses and alcohol, 291, ,301, 329. Corii'il and Banvier on nerve-fibres, 73. Cornu Ammonis, type of, 89. Cornu, anterior, 4. ,, caput and cervix, .3. ,, posterior, 3, 513. Corpora albicantia, 30, 44. ,, genicidata, 28, 48. ,, quadrigemina, 28. ,, striata, 28. Corpus trapezoides, 15, 23. Corpuscles of nerve-fibres, 73. Correspondence, variations in the, 116. Cortex cerebri, 62. ,, depth of, 95. ,, excitability of, 111, 112. ,, functional equivalence of, 113. ,, histology of, 63. ,, lamination of, 85. Cortical adhesions, 441, 442. ,, and alcoholism, 442. Coupland (Dr.) on meningeal engorge- ment, 446. Craniun), morbid states of, 433. Crichlon- Browne (Sir J.) on arachnoid hifimorrhage, 4.39. ,, biain weights, 489. \ Y.. H. Uakti.f.v, m.d., Professor of Chemistry and Toxicology at the Long Island College Hospital ; President of the American Society of Public Analysts; Chief Chemist, Board of Health, of Brooklyn. N.Y. Revised and enlarged. With 62 Illustrations. Glossary and Complete Index. 423 pages. i2mo. 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A Handbook of Methods of Microscopical Anatomy. 660 Formulae, etc. In Press. LEFFMANN'S Compend of Chemistry, Inorganic and Organic. Including Urine Analysis and the Analysis of Water. By Henry Leffmann, m.d., Prof, of Chemistry and Metallurgy in the Penna. College of Dental Surgery, and in the Wagner Free Institute of Science, Philadelphia. No. 10 ? (2uiz- Compend ? Series. Second Edition. Rewritten and Adapted for Students of Medicine and Dentistry. i2mo. Cloth, $1.00. Interleaved for the addition of Notes, $1.25 LEFFMANN & BEAM. Examination of "Water for Sanitary and Technical Pur- poses. By Henry Leffmann, m.d., Professor of Chemistry and Metallurgy, Penna. College of Dental Surgery, Hygienist and Food Inspector Penna. State Board of Agriculture, etc.; and William Beam, a.m., formerly Chief Chemist B. & O. R. R. Illustrated. i2mo. Cloth, Si-25 LE6G on the Urine. Practical Guide to the Examination of the Urine, for Practitioner and Student. By J.Wickham Legg, m.d. 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Regarding the illustrations, printing and binding we may say, h wever, that the workmanship is of the best character in every respect. No expense has been spared to make a handsome vol- ume : the 400 original illustrations adding greatly to its appearance as well as to its practical value as a working book for students MEDICAL AND SCIENTIFIC PUBLICATIONS. 15 MACDONALD'S Microscopical Examinations of Water and Air. A Guide to the Microscopical Examination of Drinking Water, with an Appendix on the Micro- scopical Examination of Air. By J. D. Macdonald, m.d. With 25 Litho- graphic Plates, Reference Tables, etc. Second Ed., Revised. 8vo. Cloth, $2.75 MACKENZIE. The (Esophagus, Nose, Naso-Pharynx, etc. By Sir Morell Mackenzie, m.d., Senior Physician to the Hospital for Diseases of the Chest and Throat, London. Illus. Being Vol. II of the First Edition of his Treatise on the Throat and Nose. Complete in itself. 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Containing lists of Physicians of all Schools of Practice, Dentists, Veterinarians, Druggists and Chemists, with information concerning Medical Societies, Colleges and Associa- tions, Hospitals, Asylums, Charities, etc. Morocco, Gilt edges, $2.50 MEIGS. Milk Analysis and Infant Feeding. A Practical Treatise on the Ex- amination of Human and Cows' Milk, Cream, Condensed Milk, etc., and Directions as to the Diet of Young Infants. By Arthur V. Meigs, m.d.. Physi- cian to the Pennsylvania Hospital, Philadelphia. i2mo. Cloth, S 1. 00 MEIGS and PEPPER on Children. A Practical Treatise on the Diseases of Children. By J. FoRSYTH Meigs, m.d.. Fellow of the College of Physicians of Philadelphia, etc., etc., and William Pepper, m.d., Professor of the Principles and Practice of Medicine in the Medical Department, University of Pennsyl- vania. Seventh Edition. Cloth, $5.00; Leather, $6.00 MERRELL'S Digest of Materia Medica. 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Considered Physiologically, Pathologically and Remedially ; being the Lea Prize Thesis of Jefferson Medical College, 1882. Revised and Corrected. i2mo. Cloth, $1.00 Compend of Anatomy, including Visceral Anatomy. Formerly published separately. Based upott Cray. Fourth Edition, Revised, and greatly En- larged. With an Index and 117 Illustrations. Being No. i ? Quiz- Compend ? Series. Cloth, $1.00; Interleaved for taking Notes, ;pi.25 Compend of Materia Medica, Therapeutics and Prescription Writing, arranged in accordance with the last Revision U. S. Pharmacopoeia, with special reference to the Physiological Action of Drugs. Fifth Revised and Improved Edition, with Index. Being No. 6 ? Quiz-Cojupend f Series. Cloth, $1.00. Interleaved for taking Notes, $1.25 PRITCHARD on the Ear. Handbook of Diseases of the Ear. By Urban Pritchard, M.D., F.R.C.S., Professor of Aural Surgery, King's College, London, Aural Surgeon to King's College Hospital, Senior Surgeon to the Royal Ear Hospital, etc. i2mo. Practical Series. See Page ig. Cloth, $1.50 PROCTER'S Practical Pharmacy. Lectures on Practical Pharmacy. With 43 Engravings and 32 Lithographic Fac-simile Prescriptions. By Barnard S. Procter. Second Edition. Cloth, 54.50 RADCLIFFE on Epilepsy, Pain, Paralysis, and other Disorders of the Nervous- System. By Charles Bland Radcliffe, m.d. IUus. Paper, .75 ; Cloth, $1.25 RALFE. Diseases of the Kidney and Urinary Derangements. By C. H. Ralfe. Illustrated. i2mo. Practical Series. See Page ig. Cloth, $2.75 REESE'S Medical Jurisprudence and Toxicology. A Text-book for Medical and Legal Practitioners and Students. By John J. Reese, m.d.. 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Mercur, M.D., of Pittsburgh, Pa., Edited and Revised by Ja.mes Tyson, m.d.. Professor of Morbid Anatomy and Pathology, University of Pennsylvania. Cloth, ;j2.oo THE P RACTICAL S ERIES. THREE NEW VOLUMES. PARKES. Hygiene and Public Health. A Practical Manual. By Louis C. Parkes, M.D., D.P.H., London Hospital; Fellow of the Sanitary Institute; Assistant Professor of Hygiene and Public Health, at University College, etc. i2mo. Cloth, j;2.5o LEWERS. On the Diseases of Women. A Practical Treatise. By Dr. A. H. N. Lewers, Assistant Obstetric Physician to the London Hospital; and Phy- sician to Out-patients, Queen Charlotte's Lying-in Hospital ; Examiner in Mid- wifery and Diseases of Women to the Society of Apothecaries of London. With 1 39 Engravings. Second Edition in Press. BTJXTOII. On Anaesthetics. A Manual of their Uses and Administration. By Dudley Wilmot Buxton, m.d., b.s., Ass't to Prof, of Med., and Administrator of Aneesthetics, University College Hospital, London. Illustrated. Second Edition in Press. MONEY. On Children. Treatment of Disease in Children, including the Out- lines of Diagnosis and the Chief Pathological Differences between Chil- dren and Adults. By Angel Money, M.D., M.R.C.P., Ass't Physician to the Hospital for Sick Children, Great Ormond St., and to the Victoria Park Chest Hospital, London. i2mo. 560 pages. Cloth, $3.00 PRITCHARB. On the Ear. Handbook of Diseases of the Ear. By Urban Pritchard, M.D., F.R.C.S., Professor of Aural Surgery, King's College, London, Aural Surgeon to King's College Hospital, Senior Surgeon to the Royal Ear Hospital, etc. i2mo. Cloth, $1.50 BARRETT. Dental Surgery for Gen- eral Practitioners and Students of Medicine and Dentistry. Extraction of Teeth, etc. By A. W. Barrett, M.D. Illustrated. Cloth, ^i.oo COLLIE. Cn Fevers. A Practical Treat- ise on Fevers, Their History, Etiology. Diagnosis, Prognosis and Treatment. By Alexander Collie, m.d., m.r.- C.P., Lond. Medical Officer of the Ho- merton, and of the London Fever Hos- pitals. Colored Plates. Cloth, $2.50 RALFE. Diseases of the Kidney and Urinary Derangements. By C. H. Ralfe, M.D., F.R.C.P., Ass't Physician to the London Hospital. Illustrated. i2mo. Clotn, $2.75 REEVES. Bodily Deformities and their Treatment. A Handbook of Practical Orthopaedics. By H. A. Reeves, m.d.. Senior Ass't Surgeon to the London Hospital, Surgeon to the Royal Orthopaedic Hospital. 228 IIlus. Cloth, §2.25 HIGGENS. Ophthalmic Practice. A Manual for Students and Practitioners. By Charles Higgins. f.r.c.p., Opthal- mic Surgeon to Guy's Hospital. Illus- trated. 274 pages. Cloth, $1.75 *^* The volumes of this series, written by well-known physicians and surgeons of large private and hospital experience, embrace the various branches of medicine and surgery. They are of a thoroughly practical character, calculateil to meet the requirements of the practitioner, and present the most recent methods and information in a compact shape and at a low price. Bound Uniformly, in a Handsome and Distinctive Cloth Binding, and mailed to any address, on receipt of the price. 20 P. BLAKISTON, SON both what to say and when he has said it." WARING'S PRACTICAL THERAPEUTICS. Fourth Edition. A Manual of Practical Thera- peutics, considered with reference to Articles of the Materia Medica. Containing, also, an Index of Diseases, with a list of Medicines applicable as Remedies, and a full Index of the Medicines and Preparations noticed in the work. By Edward John Waring, m.d., f.r.c.p., f.l.s., etc. 4th Edition. Rewritten and Revised. Edited by Dudley W. Buxton, m.d , Asst. to the Prof, of Medicine at University College Hospital; Member of the Royal College of Physicians of London. 666 pages. Cloth, $3.00; Leather, $3.50 From The Kansas Citv Medical Record. ■'As a work of reference it excels, on account of the several complete indexes added to this edition. It was deservedly popular in former editions, and will be more so in the one before us, on account of the careful arrangement of the subjects." REESE'S M EDICAL JURISPRUDENCE AND TOXICOLOGY. Second Edition. By John J. Reese, MD., Professor of Medical Jurisprudence and Toxicology in the University of Pennsvlvania ; late Presdent of the Medical Jurisprudence Society of Philadelphia; Physician to St. Joseph's Hospital; Member of the Colleee of Physicians of Phila.; Corresp inding Member of the New York Medico Le^al Society, etc. 2d Edition. Revised and Enlarged. 654 pages. Cloth, $300; Leather, ;?3. 50 THE MOST PRACTICAL SERIES OF TEXT-BOOKS- JUST PUBLISHED. THIRD EDITION. HUMAN PHYSIOLOGY. By LANDOIS AND STIRLING. With 692 Illustrations. THIRD AMERICAN, FROM THE SIXTH GERMAN EDITION. A Text-Book of Human Physiology, including Histology and Microscopical Anatomy, with special reference to the requirements of Practical Medicine. - By Dr. L. Landois, Professor of Physiology and Director of the Physiological Institute, University of Greifswald. Translated from the Fifth German Edition, with addi- tions by Wm. Stirling, m.d., scd., Brackenbury, Professor of Physiology and Histology in Owen's College and Victoria University, Manchester; Examiner in the Honors' School of Science, University of Oxford, England. Third Edition, revised and enlarged. 692 Illustrations. "A BRIDGE BETWEEN PHYSIOLOGY AND PRACTICAL MEDICINE." One Volume. Royal Octavo. Cloth, $6.50 ; Leather, $7.50. From the Prefaces to the English Edition. The fact that Prof. Landois' book has passed through four large editions in the original since 1880, and that in barely six months' time a second edition of the English has been called for, shows that in some special way it has met a want. The characteristic which has thus commended the work will be found mainly to lie in its eminent practicability; and it is this consideration which has induced me to undertake the task of putting it into English. Landois' work, in fact, forms a Bridge between Physiology and the Practice, of Medicine. It never loses sight of the fact that the student of today is the practicing physician of to-morrow. In the same way, the work offers to the busy physician in practice a ready means of refreshing his memory on the theoretical aspects of Medicine. He can pass backward from the examination of patho- logical phenomena to the normal processes, and, in the study of these, find new indications and new lights for the appreciation and treatment of the cases under consideration. With this object in view, all the methods of investigation which may, to advantage, be used by the practitioner, are carefully and fully described. Many additions, and about one hundred illustrations, have been introduced into this second English edition, and the whole work carefully revised. PRESS NOTICES. " Most effectivsly aids the busy physician to trace from morbid phenomena back the course of divergence from healthy physical operations, and to gather in this way new lights and novel indications for the comprehension and treatment ot the maladies with which he is called upon to cope." — American Journal nf Medical Sciences. " I know of no book which is its equal in the applications to the needs of clinical medicine." — Pro/. Harrison Allen, lati Professor of I'hysiology , University of Pennsylvania. " We have no hesitation in saying that this is the work to which the Practitioner will turn whenever he desires light thrown upon the phenomena of a complicated or important case." — Edinburgh Medical Journal. " So great are the advantages offered by Prof. Landois' '1'ext- Book, from the exhaustive and eminently practical manner in which the subject is treated, that it has passed through four large editions in the same number of years. . . . Dr. Stirling's annotations have materially added to the value of the work. Admirably adapted for the Practitioner. . . . With this Text-book at command, no Student could fail in his examination." — The Lancet. "One of the most practical works on Physiology ever written, forming a ' bridge ' between Physiology and Practical Medicine. . . . Its chief merits are its completeness and conciseness. . . . The additions by the Editor are able and judicious. . . . Excellently clear, attractive and succinct." — British Medical Journal. "The great subjects dealt with are treated in an admirably clear, terse, and happily illustrated manner." — Practitioner. " Unquestionably the most admirable exposition of the relations of Human Physiology to Practical Medicine ever laid before English readers " — Students' Journal. " As a work of reference, Landois and Stirling's Treatise ought to take the foremost place among the text- books in the English language. The wood-cuts are noticeable for their number and beauty." — Glnsgo^v Medical Journal. " Landois' Physiology is, without question, the best text-book on the subject that has ever been written." — New York Medical Record. , "■ The chapter on the Brain and Spinal Cord will be a irost valuable one for the general reader, the translator's notes adding not a little to its importance. The sections on Sight and Hearnig are exhaustive. . . . The Chemistry of the Urine is thoroughly considered. ... In its present form, the value of the original has been greatly increased. . . . The text is smooth, accurate, and unusually fiee from Germanisms ; in fact, it is good English." — Neiu York Medical Journal. " It is not for the physiological student alone that Prof. Landois' book possesses great value, for it has been addressed TO THE practitioner OF MEDICINE as well, who will find here a direct application of physiological to pathological processes." Medical Bulletin. P. BLAKISTON, SON & CO., Publishers, 1012 Walnut St., Philadelphia. JUST READY. A TEXT-BOOK OF DISEASES OF THE EYE. BY DR. EDOUARD MEYER, ProJ. ,i V&cole Pratique de la Faculte de Medecine de Paris; Chevalier of the Legion of Honor, etc, AUTHORIZED TRANSLATION BY FREELAND FERGUS, M. B., Assistant Surgeon, Glasgow Eye Infirmary. COLORED PLATES PRINTED UNDER THE DIRECTION OF DR. RICHARD LIEBREICH, M. R. C. S., Author of the "Atlas of Ophthalmoscopy." WITH COLORED PLATES AND 267 ENGRAVINGS ON WOOD. Octavo. 650 Pages. Cloth, $4.50 ; Leather, $5.50. Synopsis of Contents. — Diagnosis and Treatment of Ocular Affections. Diseases of the Conjunc- tiva. Diseases of the Cornea and Sclerotic. Iris — Ciliary Body — Choroid. Glaucoma. Diseases of the Optic Nerve and Retina. Amblyopia and Amaurosis. Diseases of the Vitreous Body. Diseases of the Crystalline Lens. Refraction and Accommodation. The Muscles of the Eye. Diseases of the Eyelids. Diseases of the Lachrymal Passages. Diseases of the Orbit. Table of Dioptries. Index. Forming a complete systematic Manual of Ophthalmology. The translating and editing have been done with the assistance l^x^ of the author. The illustrations, which will be W^ found of great help in diagnosis, have been care- fully engraved ; the colored plates, being re- duced from Liebreich's Atlas of Ophthalmology and printed under the direction of Di. Liebreich, are accurate and faithful representations of their subjects. Treatment and Diagnosis receive full share Fig. 27.-pTTryqium. of attention. Refraction and accommodation (Attention is called to the help in diagnosis of a occupy a section of ovcr sixty pagcs, being cut of this character. It is followed by three en- handled in a practical, concisc way that will gravings showing the operation for Pterygium.) , • i /- • 11 1 1 1 • commend itself specially to students and physi- cians who have given the subject but little attention. The chapters describing the subject of general diagnosis and the proper instruments to be used, are thorough and well illustrated. Dr. Swan M. Burnett, reviewing the book in The Archives 0/ Ophthabnology^ says : " The cause of its popularity is not fiar to seek. It is clear, concise, conservative and eminently practical." This book has gone through three French and four German Editions, has been translated into Italian, Spanish, Polish, Russian, Japanese — this, the English Edition, making the eighth language in which it has been published. JUST READY. THE SEVENTH REVISED AND ENLARGED EDITION OF ROBERTS' PRACTICE. THE THEORY AND PRACTICE OF MEDICINE. By Fred. T. Roberts, m.d., f.r.c.p., Professor of Materia Medica and Therapeu- tics at University Hospital, Physician to Unive~s-.*v College Hospital, etc. Seventh Edition. Revised and Enlarged. One vo.jme, 8vo., with nu- merous Illustrations. Cloth Binding, ;^5.5o; Leather, ;^6.5o The present edition has been fully revised throughout, and in some parts rewritten or re- arranged. While an endeavor has been made to bring every subject up to date in all its aspects, special attention has been given to the questions of treatment, with the view of bringing into notice important therapeutic agents or methods which have been recently introduced. The unexceptional large and rapid sale of this book, and the universal commendation it has received from the profession, seems to be a sufficient guarantee of its merit as a Text-book. The publishers are in receipt of numerous letters from professors in the medical schools, speaking favorably of it, and below they give a few extracts from the medical press, American and English, attesting its superiority and value to both student and practitioner. The present edi- tion has been thoroughly revised and much of it re- written. " The best Text-book for students in the English language. We know of no work in the English language, or in any other, which competes with this one." — Edinburgh Medical Journal. " Dr. Roberts' book is admirably fitted to supply the want of a good Handbook, so much felt by every medical student." — Student' s Journal and Hospital Gazette. "^'i here are great excellencies in this book, which will make it a favorite with the student." — Richmond and Louisville Journal. " We heartily recommend it to students, teachers, and practitioners." — Boston Medical and Surgical Joitrnal. " It is unsurpassed by any work that has fallen into our hands as a compendium for students." The Clinic. " We particularly commend it to students about to enter upon the practice of their profession." — St. Loziis Medical and Surgical Journal. " If there is a book in the whole of medical literature in which so much is said in so few words, it has never come within our reach." — Chicago Aledical Journal. BY THE SAME AUTHOR. NOTES ON MATERIA MEDICA AND PHARMACY. ESPECIALLY ARRANGED FOR THE USE OF STUDENTS. 16mo, Cloth, $2.00. For sale by all Booksellers ; or will be sent by mail, postpaid, on receipt of price by the Publishers, P. Blakiston, Son & Co., 1012 Walnut Street, Philadelphia. "IT STANDS WITHOUT AN EQUAL AS THE MOST COMPLETE WORK ON PRACTICE IN THE ENGLISH LANGUAGE."— A'ct** Vork Medical Journal. FAGGE'S PRACTICE OF MEDICINE, Two Large Royal Octavo Volumes. Containing over 1900 Pages. PRICE, HANDSOMELY BOUND IN CLOTH, S8.00. The Principles and Practice of Medicine. Bv CHARLES HILTON FAGGE, M.D., F.R.C.P.. F.R.M.C.S., Examiner in Medicine, University of London ; Physician to, and Lecturer on Pathology in, Guy s Hospital; Senior Physician to Evelina Hospital for Sick Children, etc. EDITED AND ARRANGED FOR THE PRESS By p. H. Pye-Smith, M.D., F.R.C.P., Lecturer on Medicine in Guy's Hospital, London, etc., WITH A SECTION ON CUTANEOUS AFFECTIONS, BY THE EDITOR, A CHAPTER ON CAR- DIAC DISEASES, BY SaMUEL WiLKES, M. D., F. R. S., AND TWO INDEXES, ONE OF AUTHORS AND ONE OF SUBJECTS, BY ROBERT EdMUND CaRRINGTON. Two Volumes. Royal Octavo. 1900 Pages. Price in Cloth, $8.00. Full Leather, $10.00. Half Morocco, $12.00. Half Eussia, $12.00. It is based on laborious researches into the pathological and clinical records of Guy's Hospital, London, during the twenty years in which the author has held office there as Medical Registrar, as Pathologist, and as Physician. Familiar beyond most, if not all, of his contemporaries, with modern medical literature, a diliger/. reader of French and German periodicals. Dr. Fagge, with his remarkably retentive memory and methodical habits, was able to bring to his work of collection and criticism almost unequaled opportunities of extensive experience in the wards and dead house. The result is that which will probably be admitted to be a fuller, more original, and more elaborate text-book on medicine than has yet appeared. It is the first of importance emanating from Guy's Hospital, and the only two-volume work on the Practice of Medicine that has been issued for a number of years. Several subjects, such as Syphilis, that are usually omitted or but slightly spoken of in a general work of this character, receive full attention. Dr. Walter Moxon, one of Dr. Fagge's contemporaries, and a great personal friend, writes of him, in a recent number of the London Lancet : — " Fagge was, to my mind, the type of true medical greatness. I believe he was capable of any kind of excellence. His greatness as a physician became evident lo observers of character very soon after his brilliant student career had placed him on the staff of Guy's Hospital: he did not merely group already known facts, but he found new facts. Former volumes of Guy's Hospital Reports contain ample and most valuable proof of his greatness as a physician. His power of observation was sustained by immense memory, and brought into action by vivid and constant suggestiveness of intelligence. He was a physician by grace of nature, and being gifted with a quickness of perception, a genius for clinical facts and a patience in observation, he was at once recognized as a successful practitioner and a leading figure in the hospital and among the profession. NEW AND REVISED EDITIONS. ? OUIZ-COMPENDS ? A SERIES OF PRACTICAL MANUALS FOR THE PHYSICIAN AND STUDENT. Compiled in accordance with the latest teachings of prominent lecturers and the most popular Text-books. They form a most complete, practical and exhaustive set of manuals, containing information nowhere else collected in such a condensed, practical shape. Thoroughly up to the times in csz'.j respect, containing many new prescriptions and formula, and over two hundred and thirty illustrations, many of which have been drawn and engraved specially for this series. The authors have had large experience as quiz-masters and attaches of colleges, with exceptional opportunities for notmg the most recent advances and methods. The arrangement of the suli- jects, illustrations, types, etc., are all of the most approved form, and the size of the books is such that they may be easily carried in the pocket. They are constantly being revised, so as to include the latest and best teachings, and can be used by students of any college of medicine, dentistry or pharmacy. Bound in Cloth, each $i.oo. Interleaved, for the Addition of Notes, $1.25. No. I. Human Anatomy. Fourth Edition, including Viscer.-\1 Anatomy, formerly published separately. Over 100 Illustrations. By Samuel O. L. Potter, m.a., m.d , late A. A. Surgeon U. S. Army. Professor of Practice, Cooper Med. College, San Francisco. Nos. 2 and 3. Practice of Medicine. Fourth Edition. By Daniel E. Hughes, m.d., Demonstrator of Clinical Medicine in Jefferson Med. College, Phila. In two parts. Part I. — Continued, Eruptive and Periodical Fevers, Diseases of the Stomach, Intestines, Peritoneum, Biliary Passages, Liver, Kidneys, etc. (including Tests lor Urine), General Diseases, etc. Part II. — Diseases of the Respiratory System (including Physical Diagnosis), Circulatory System and Ner- vous System ; Diseases of the Blood, etc. *-if* These little books can be regarded as a full set of notes upon the Practice of Medicine, containing the Synonyms, Definitions, Causes, Symptoms, Prognosis, Diagnosis, Treatment, etc., of each disease, and includmg a number of prescriptions hitherto unpublished. No. 4. Physiology, including Embryology. Fifth Edition. By Albert P. Brubaker, M.D., Prof, of Physiology. Peiin'a College of Dental Surgery : Demonstrator of Physiology in Jefferson Med. College, Phila. Revised, Enlarged and Illustrated. No. 5. Obstetrics. Illustrated. Fourth Edition. For Physicians and Students. By Henry G. Landis, m.d., Prof, of Obstetrics and Diseases of Women, in Starling Medical College, Columbus. Revised Edition. New Illustrations. No. 6. Materia Medica, Therapeutics and Prescription Writing. Fifth Revised Edition. With especial Relcrcnce to the Physiological Action of Diugs, and a complete article on Prescription Writing. Based on the Last Revision (Sixth) of the U. S. Pharma- copoeia, and including many ur.ofticiiial remedies. By Samuel (). L. Potter, m.a., m.d., late A. A. Surg. U. S. Army ; Prof, of Practice, Cooper Med. College, San Francisco. 5th Edition. Improved and Enlarged, with Index. No. 7. Gynaecology. A Compend of Diseases of Women. By He.vry Morris, m.d., Demonstrator of Obstetrics, Jefferson Medical 0>llege, Philadelphia. In Press. No. 8. Diseases of the Eye and Refraction, including Treatment and Surgery. By L. Webster Fox, m.d., Chief Clinical Assistant Opthalmological Dept., Jefferson Medical College, etc., and Geo. M. Gould, a.b. 71 Illustrations, 39 Formuliie. 2d Edition. No. 9. Surgery. Illustrated. Third Edition. Including Fractures, Wounds, Disloca- tions, Sprains, Amputations and other operations; Inflammation, Suppuration, Ulcers, Syphdis, Tumors, Shock, etc. Diseases of the Spine, Ear, Bladder, Testicles, Anus, and other Surgical Diseases. By Orville Horwitz, a.m., m.d.. Demonstrator of Surgery, Jcfierson Medical College. Third Edition. Revised and Enlarged. 77 Formula; and 91 lllustraiions. No. 10. Chemistry. Inorganic and Organic. For Medical and Dental Students. By Henry Leffmann. m.d., Prof, of Chemistry in Penn'a College of Dental Surgery, Phila. 2d Ed. No. II. Fnarmacy. Based upon " Remington's Text Book of Pharmacy." By F. E. St''WART, m.d., ph.g., Quiz-Master at Philadelphia College of Pharmacy. Secon Bound in Cloth, each $1.00. Interleaved, for the Addition of Notes, $1.25. 8^" These books are constantly revised to keep up with the latest teachings and discoveries-. PUBLISHED ANNUALLY. 1890. NOW READY. 39th YEAR. f HE P HYSICIAN 'S Y lSlTlNG J ^IST. (LINDSAY & BLAKISTON'S.) CONTENTS. AuMANAC for 1890 and 1891, Table op Sic.ns to be used in keeping accounts. Marshall Hall's Rkauy Method in Asphyxia. Poisons and Astidotks, revised for 1890. The Metric ok Krench Decimal System of Weights and Measures. Dose Table, revised and rewritten for 1890, by He BART Amory Hare, m d , Demonstrator of Thera- peutics, University of Pennsylvania. List of New Remedies for 1890, by same autlior. Aids TO Diagnosis and Treatment of Diseases op the Eye, Dr. L. Webster Fox, Clinical Asst. Eye Depi , Jefferson Medical College Hospital, and G. M. Gould, m.d. Diagram Showing Eruption of Milk Teeth, Dr. Louis Starr, Prof of Diseases of Children, Univer- sity Hospital, Philadelphia. PosoLOGicAL Table, Meadows. Disinfectants and Disinfecting. ExaminatI">n op Urine, Dr. J. V alahv. iaseii u/on Tyson's " Practical Examination of Urine." 6ih Edition. Incompatibility, Dr. S. O. L. Potter. A New Complete Table for Calculating thb Period of Utero-Gestation. Syi.ve-ster's Method for Artificial Respiration. Illustrated. Diagram of the Chest. Blank Leaves, suitably ruled, for Visiting Lists, Monthly Memoranda, Addresses of Patients and others ; Adilresses of Nurses, their references, etc. ; Accounts asked for; Memoranda of Wants ; Obstet- ric and Vaccination Engagements; Record of Births and Deaths ; Cash Account, etc. REGULAR EDITION. For 25 Patients weekly. 50 75 TOO " " 50 For 25 Patients weekly. 50 2 Vols. 2 Vols. J Jan. to June] '^ ;.j July to Dec. Jan. to June July to Dec. Tucks, pockets and Pencil, |l.oo 1.25 1.50 " " " 2.00 " " " 2.50 INTERLEAVED EDITION. Interleaved, tucks and Pencil, 50 2 Vols. I Jan. to June ] ( July to Dec. J 3.00 1.25 1.50 3.00 PERPETUAL EDITION, without Dates. No. 1. Containing space for over 1300 names, with blank page opposite each Visiting List page. Bound in Red Leather cover, with pocket and Pencil, $1.25 No. 2. Containing space for 2600 names, with blank page opposite each Visiting List page. Bound like No. i, with Pocket and Pencil, .... 1.50 MONTHLY EDITION, without Dates. No. 1. Bound without Flap or Pencil 75 No. 2, " with Tucks, Pencil, etc i.oo These lists, without dates, can be commenced at any time, and used until full, and are particularly useful to young physicians unable to estimate the number of patients they may have during the first years of Practice, and to physicians in locali- ties where epidemics occur frequently. In the Monthly Edition the patient's name has to be entered but once each month. " For completeness, compactness, and simplicity of arrangement it is excelled by none in the market." — ..V. y Medical Record. "The book is convenient in form, not too bulky, and in every respect the very best Visiting List published.' — Canada Medical und Surgical Journal. " After all the trials made, there are none superior to it." — Gaillard's Medical Journal. " The most popular Visiting List extant." — Bujjfalo Medical and Surgical Journal. " We have used it for years, and do not hesitate to pronounce it equal, if not superior, to any." — Southern Clinic. This is not a complicated system of keeping accounts, but a plain, systematic record which, with the least expenditure of time and trouble, keeps an accurate and concise list of daily visits, engagements, etc. , >