fe/')l fyxmll Urnvmitg Jilrtatg THE GIFT OF .^^2?^ ^:::>:2^...S.a./orTi,.^.Si.ffr?::i^.... A..x.a..i...t^M.^ /.g/ll/AL. 3513-2 olin,anx 3 1924 031 323 995 The original of tliis book is in tlie Cornell University Library. There are no known copyright restrictions in the United States on the use of the text. http://www.archive.org/details/cu31924031323995 A NEW STAK ATLAS. LOKDOS : PBISTEB BY SPOTTISWOODI! and CO., KEW-STEEET SQUARll ASD PABLlAMEJfT 8TKEET A NEW STAR ATLAS THE LIBEAEY, THE SCHOOL, AND THE OBSERVATORY. IN TWELVE CIRCULAR MAPS (WITH TWO INDEX PLATES). INTENDED AS A COMPANION TO 'WEBB'S CELESTIAL OBJECTS FOB COMMON TELESCOPES.' WITH A LETTERPRESS INTRODVCTIOH ON THE STUDY OF TBE STARS, ILLUSTRATED Br SEVERAL WOODCUTS. RICHARD A. PROCTOR, B.A. Camb. HON. SEC. H.A.S. ATTTHOR OF 'THE SUN,* 'OTHER WORLDS TFIAN OURS,' 'SATURN AND ITS SYSTEM,* *A NEW LARGE STAR ATLAS,' 'THE GNOMONIC STAR ATLAS,' 'THE HANDBOOK OP THE STARS,' ETC. ' Why did not somebody teach me the Constellations, and make me at home in the starry heavens, which Are always overhead, and which I don't half know to tliis day ? ' Carlyle. LONDON: LONGMANS, GREEN, AND CO. 1881. All Tights reserved. PREFACE. This Atlas is reduced from my large Star Atlas. The plan on which it has been constructed — briefly described in the accompanying letterpress — needs no special discussion here ; because I have already fully dealt with it in the introduction to the large Atlas. I may remark, howeyer, that the present work affords new and striking evidence of the advan- tages of the plan; for we have here a little book which can be cSirried in the pocket, while the small Atlas published by the Society for Diffusing Useful Knowledge is printed on sheets about sixteen inches square ; and yet the scale of the accompanying maps is larger than that of the S.D.TJ.K. Atlas. The re- duction in size is gained chiefly by a reduction in the distortion of the maps, the maximum expansion due to this cause being fifty -eight times greater in the S.D.TJ.K. maps than in the present (see note at pp. 11, 12). Moreover, the twelve maps of this Atlas overlap, a fifth part of the heavens being in- cluded in the overlaps; so that each of the twelve maps exhibits a tenth part of the heavens. VI PREFACE No pains have been spared to clear the maps of all which could cause confusion to the beginner; but this has been done in such a way that the more advanced student may find nothing wanting. For example, the meridians and parallels are drawn in to every fifteenth, instead of every fifth degree (as usual) ; but, since all the intersections of these lines to every fifth degree are marked in the maps (with a small cross), the places of stars can be determined, from catalogues or the like, as readily as though the lines themselves were marked in. In like manner all the longitude and latitude lines, except the ecliptic and the solstitial colures, are omitted; but their intersections to every fifteenth degi-ee are marked (with a small dotted cross), and any student who is sufiiciently advanced to require these lines will be able to recognise very readily where they lie, or to pencil them in if need be. I consider their omission, and the omission of all but every third of the me- ridians and parallels usually introduced, to be abso- lutely essential for the convenience of the majority of those who will use these maps ; though the maps would, undoubtedly, be imperfect if the position of these lines were not indicated. The method of indicating the effects of precession is also novel. Instead of a precession-triangle in the corner of each map, with instructions for obtaining compass measurements, I have placed precession- arrows over the maps (always on latitude-par aUels, 15° 30°, &c,) ; and these show at once by what am aunt PREFACE. vii stars in tlie neighbourliood are precessionally dis- placed in one hundred years. In passing, however, let me call the student's attention to the fact (often forgotten) that the stars suffer no real displacement, and that he -will do well to regard the effects of precession as shifting the meridians and parallels bodily in a direction contrary to that indicated by the arrows. The constellation boundaries are somewhat darker than I would have had them if I had not had to con- sider the requirements of beginners. It seems to me very necessary that the extent of each constellation should be recognisable at a glance (at least by most of those who will use these maps). Indeed, if no other means would suffice for this, the spaces should be coloured as in geographical maps. I think the pre- sent arrangement meets all requirements. As to the constellation-figures, I conceive that few will be disposed to regret their omission from the present Atlas. The old usage — by which a star's place was indicated by a reference to the club of Orion, or the northern claw of the Crab, or the southern wing of the Virgin, and so on — is happily falling into disuse ; and, as the number or letter of a star is always mentioned, even by those who employ the ancient practice, no difficulty can ever arise in finding any star referred to.* * In my Gnomonic Atlas the figures are shown. The plates belongiDg to that atlas form the index plates of my large atlas, and can also be obtained separately. viii PREFACE. It is of more importance to notice that the present Atlas is specially intended to serve as a companion to Mr. Webb's excellent treatise, ' Celestial Objects for Common Telescopes.' With a very few excep- tions, aU the objects mentioned in that work are shown in this Atlas. The exceptions relate to objects (some twenty in all, perhaps) which could not be introduced without overcrowding. To make up for these omissions, however, several hundreds of objects not included in Mr. Webb's charming work are shown in this Atlas. Thus, all the objects in Admiral Smyth's ' Celestial Cycle,' all the binary stars in Mr. Brothers's catalogue, all the Red Stars in Schjellerup's catalogue,* all the nebulae down to the order marked ' very bright ' in Sir J. Herschel's great catalogue, aie introduced here, with only such exceptions (perhaps a score in all) as were necessary to avoid overcrowding. It is hoped that, with this unusual richness in objects of interest, the Atlas wiU prove a complete vade mecum for the amateur telescopist. I have to thank Mr. Webb for the careful revision of the Atlas, so far as the objects to be included in * Some of these stars would appear to be variable in colour ; at least Mr. Webb and other careful observers do not recognise any ruddiness in certain stars included in Schjellerup's catalogue. Such stars are marked ' Eu ?' The student should notice, also, that the catalogue is incomplete, many red stars having been noted since it was drawn up. Furthermore, many of the stars included in the catalogue are not pro- p«rly speaking red, but may rather bo de^eribod as orange or ruddy yellow PREF4.CI:. ix his treatise are concerned. In the course of this revision he has noticed several discrepancies between the constellation outlines in this work (based on the British Association Catalogue) and those used in Smyth's ' Bedford Cycle.' As Mr. Webb's ' Celes- tial Objects ' is closely associated with the ' Cycle,' he has not thought it desirable to remodel the arrangement of the constellations ; and, on the other hand, as this Atlas is a miniature of my ' New Star Atlas,' I should have been unwilling to change the constellation outlines, even if I did not entertain the opinion that Baily's changes result in an immense im- provement. The student will therefore be prepared to find that some few objects described in ' Celestial Objects ' as in one constellation are here shown in another ; and even that some constellations men- tioned in ' Celestial Objects ' (as Antinous, Anser, Clypeus, &c.) are here omitted altogether. But no difficulty need arise on this account, because Mr. Webb in every case mentions the right ascension and declination of the several objects. The letterpress introduction has been prepared for the use of beginners, who often find it difficult to compare the heavens with the maps of a star-atlas. I would recommend, as a convenient supplement to the information contained in these pages, my work entitled the ' Half-Hours with the Stars,' published by (and the property of) my friend Mr. Hardwicke, of Piccadilly. Its twelve maps show how the stars are placed, night by night and hour by hour, throughout X PREFACE. the year in England. Thus they serve a purpose wholly distinct from that of such a star-atlas as the present. Each work is, however, complete in itself; and, as the ' Half-Hours with the Stars ' suffices to teach the merest begianer the names and places of all the leading star-groups, so the present will enable the learner to identify all the stars of the first five orders of magnitude ; that is, all the stars except the faintest of those seen on very dark and clear nights. EICHAED A. PEOCTOE. Ebiqhton : December 1371. CONTENTS. FAon The Staery Heavens subhodnd us uke a Hollow Globe . 1 This (tlobe seemingly tubns bound an Axis , . . . 2 greneral effects of this tueninq 3 TtS RATE i KeSULTINO MOVEMENTS OF THE StARS EASILY RECOGNISED IN A FEW MINUTES fl The Stab-sphebb botateb 366 times (boughlt) in a year . 6 Plan on which the peesent Atlas pictures the Heavens . 7 Use op the Index Maps 13 How to compare the Maps with the Heavens . , .14 Tables I. and II., showing vpheee the Stabs in each Map are to be looked for at different hours and seasons . . 20 Table III., showing what Constellations are visible in England, and in what paet op the Sky, at different hours and seasons 22 Table IV. — List op Constellations (Latin and English names), with the Map in which each Constellation is to be found 24 Table V, — List op Star-names 26 xil CONTENTS. LIST OF WOODCUTS. FIfJS. PAGL' I AND 2. Diagrams illustrating construction df Atlas . 9 3 AND 4. „ „ „ , 10 fl AND 6. „ „ „ „ . . II 7. Showing where the Bears, Pointers, &c., are to BE looked for at DIFFERENT HOURS AND SEASONS 15 8 AND 9. Showing towards what parts of the Skt thf Stars IN the several Maps of this Atlas are to be LOOKlin POR AT different HOURS AND SEASONS 18, 19 HOW TO LEARN THE STARS. On a clear, but dark night, we see many hundreds of stars of various orders of brightness. Those who are but beginning the study of the heavens are impressed with the feeling that it must be a very difBoult task to become familiar with all the star-groups, and to learn the names of the brighter orbs. The task appears yet harder when they are told that the stars seen on one night or at one hour are not the same as those seen on other nights or at other hours — that the aspect of the starry heavens is in fact continually changing. Yet nearly all wish to know the stars, even though they may not wish to engage in the actual study of astronomy. In reality, it is by no means so difficult as might be supposed to recognise all the chief star-groups — or constellations, as they are called — and to learn the names of all the leading stars. One may, without much trouble, become so well acquainted with the stars as to be able to recognise even three or four seen through a break in a cloudy sky. I propose now to show how such knowledge is to be gained. In the first place, the student must learn what is the true arrangement of the stars as distinguished from that which he sees at any instant from some standpoint on the earth. He views the heavens as a dome, or hollow half-globe, on the inside of which the stars are spread in hundreds. But he must remember that beneath the horizon there is another similar half-globe, passing right round under his feet, and similarly bespread with stars. If the earth were perfectly transparent, and the light of the sun were lost, the observer on B 2 A NEW ST AH ATLAS. earth ivould find himself placd seemingly at the centre of a vast hollow globe covered with stars. And if he could con- tinue to watch this globe hour after hour, day after day, and year after year, he would find that all the stars* kept their places on the globe, but that the globe itself seemed to turn bo'dily round, as if on a,n axle passing, througlj bis oiivji position. There; would be a, ceaseless, and perfectly uniform turning round of the sphere of stars, but in other respects there would be no perceptible change in the position of any of the stars. The earth not being transparent, we see at night but one half of this rotating . sphere ; and the light of the sun being - sufficient to obliterate that of the stars, we cannot in the day- time see the sphere of stars at all. But the learner must remember that one and the same star-sphere surrounds him on ■ all sides, below as well as above the horizon, and at all hours, by day as well as by night. It is because the stars do not . change in their position on this sphere that they are called jfa;ed , stars. Their fixity enables ua to recognise the groups which they seem to form. A well-marked group of stars, once re- cognised, cannot easily be forgotten ; and it becomes thence- • forth a sort of skymark whence the learner can proceed to other groups. And as there are certain star-groups which al- ways continue above the horizon, the observer who has learned , to recognise some of them, can on any clear night extend his survey frOm these known groups to others that are unknown. It is easy to see why some groups are never carried below the horizon, notwithstanding the continual rotation of the star- sphere. Two points of the turning sphere are necessarily ■ fixed. These are called the poles of the celestial sphere. In England one of these poles — the north pole of tlie heavens lies due north, and rather more than halfway above the horizon, towards the point overhead (called the zenith). The other point is, of course, below the horizon, due south, and rather more than halfway down towards the point directly under the observer (called the nadir). If the observer laces * The light of the sun being obliterated, neither the moon nor aiij of the planets wouJd be visible. sow' TO LEARN THE STARS. 3 due south, the stars near the horizon on his left hand, or towards the east, have lately risen, and are passing higher; those near the horizon on his right hand, or towards the west, are about to pass below the western horizon. Those which rise above the horizon nearly due east, will pass higher and higher till they are due south, when they will be rather less than half- way from the southern horizon towards the point overhead. Thence they will descend until they are nearly due west, when they wiU pass below the horizon. If the observer, having duly recognised the nature of this motion (which corresponds exactly with the seeming motion of the sun on a spring or autumn day), remembers that it is brought about by the rota- tion of the whole sphere of the stars, he will at once see what must be the nature of the stellar motions in other parts of the heavens. He will see that stars which rise on any part of the horizon from east to south will follow a similar course, but shorter and shorter the nearer their place of rising is to the south point ; their elevation when due south wiU also be less and less ; and they will follow a descending course precisely resembling their ascending course, setting just as far to the wt'st of the south point as they rose to the east of it. A star which is on the horizon when due south can only be seen for a minute or two, just grazing the southern horizon. Stars which rise in any part of the horizon from east to north, will .ilso continue to pass higher and higher till they are due south, following a longer and longer course, the nearer their place of rising is to the north point ; their elevation when due south will also be greater and greater ; and they wiU follow a de- scending course precisely similar to their ascending course, setting just as far to the west of the north point as they rose to the east of it. A star which is on the horizon when due north performs a complete circuit before it again reaches the horizon,. when it is due north as before ; its highest point being reached when due south after half a circuit, at which time it is but about thirteen degrees from the point overhead. No stars within the circuit of such a star ever reach the horizon at all. Each performs a complete circuit, which is smallor and smaller 4 A NEW STAR ATLAS. the nearer the star is to the pole of the heavens. A star which, when due north, is about 13 degrees above the horizon, ia almost exactly overhead when half a circuit has been com- pleted. Stars nearer to the pole than this are due north when at their highest in their circuit as well as when at their lowest. But let the student bo reminded that all these varieties of motion are the effects of but one single turning movement. He must not suffer himself to be confiised by these motions as described (I have, however, described them as clearly as I could) ; but if he finds doubt arising in his mind, when he is actually studying the stars, let him face due north, and, look- ing towards the north pole of the heavens (a point rather more than halfway above the northern horizon towards the point overhead), let him remember that the stellar, sphere moves as though turning bodily round on an axis, — running from that pole through his own station {which is at the centre of the sphere) to a point directly opposite the former, — the rotation being such that stars near the pole move round it in a direc- tion contrary to that in which the hands of a watch move. It will serve equally well if he faces due south, and remembers that the stellar sphere is being carried round from left to right, as though on an axis passing through his station and the invisible pole (which lies below the southern horizon, and rather more than halfway down towards the point directly beneath him). The rate at which the stellar sphere rotates must next be considered. Boughly speaking, the sphere of stars may be said to turn round once in each day ; but in reality it turns rather more quickly, so as to make one complete rotation in about four minutes less than a day. Thus a star which rises in the east takes six hours (less about one minute) to reach the highest part of its path, when it is due south ; and it takes the same interval in passing to its setting- place in the west. It is, there- fore, twelve hours above the horizon. Stars whose place of rising lies nearer the south are less than twelve hours above the horizon. Stars which rise to the north of the east point are more than twelve hours above the horizon. Stars which touch sow TO LEARN tHE STARS. 5 or pass above the northern horizon take twenty-four hours (less about four minutes) in circling round the pole of the heavens. It is well to remember that the resulting motion of the stars can be easily recognised in a very few minutes. This may be shown in a variety of ways. If a star is seen above or beside some distant object, as a tree or house, then if the student re- main in an unchanged position for a few minutes only, he will see that the star has perceptibly changed its place. If the star is towards the east, it seem.<( to have moved upwards and towards the right. If it is towards the west, it seems to have moved towards the right, and downwards. If it is towards either the south or the north, it seems to have moved horizon- tally towards the right. (AH stars near the hoi'izon move to- wards the right, though only those towards the north and south move horizontally.) Ten minutes will produce an un- mistakabte change of place.* * It is strange how little familiar most persons are with the fact that the stellar motions are thus obvious. The notion seems to prevail that only the astronomer in his protracted night-watching can become cogni- zant of the stellar motions. One of the most beautiful and touching descriptions in all Dickens's works — the death of Stephen Blackpool, in Hard Times^s somewhat impaired by the introduction of an im- possible star, shining for hours down the deep chasm into which the poor fellow had fallen. The mouth of the Old Hell Shaft was so narrow a chasm as to be concealed by tall grass. Stephen fell far down ; and the star was so bright that he could show it to Eachael among all the other stars visible on an autumn night. Certainly no such star exists in the. catalogues of astronomers. It is probable, however, that Dickens may have heard some such story about a bright star — Venus or Jupiter T— only the star cannot have been seen just overhead. Novelists and poets sometimes introduce astronomical details rather unhappily. One has made the new moon rise at one o'clock in the taoming; another makes midnight moonless though the moon had risen at eleven ; in the ' Portent ' (a tale which appeared in one of the early numbers of the Corn- hill) a star is made toshine midway between the horns of the crescent moon ! But, perhaps, all the slips of the sort ever made are outvied by one in the opening line of Chapter XII. Book IV. of Our Mutual Friend. Tennyson is singularly accurate in all astronomical details. In Maud Bueh details are somewhat freely introduced ; but so correctly that Mr. Hind himself could take no exception to any of the astronomical stat»- Dientfi. ^ A NEW STAB ATLAS. So much for the motions of the stars nn any given nightj But there is also an apparent motion of the star-sphere from day to day. I have mentioned that the star-sphere turns once completely round on its axis in the course of rather less than twenty-four hours. Thus in twenty-four hours it has gone rather more than once round. Hence, if we look at the heavens vight after night at the same time, we notice precisely the game kind of change as when we look at the heavens hour after hour on the same night. Suppose that we look at the stars at ten o'clock on any night and note their position, and that again we note the position of the stars at eleven o'clock on the same night ; then, if afterwards we examine the stars night after night at ten o'clock, we shall find that at the end of about fifteen days they have at this hour the same position that they had on the first night at eleven o'clock — that is, they have ad^ vanced by one hour's motion. In a month or thereabouts; they will be found to have advanced by two hours' motion. In a year they advance by twenty-four hours' motion,- that is, by one complete rotation, so that they have resumed their original positions. In fact, in the course of a year the star- sphere turns round once oflener than there are days in the year.* If the learner, recalling the nature of the rotation to which the star-sphere is subject, remembers also that (roughly) the star-sphere turns round once in a day, he will know what changes to expect as any night progresses, and if he further remembers that (roughly) the star-sphere makes one extra turn in the year, he will know what changes to expect as the year progresses. Now, to aid the student in learning the names and features * The amount by which the stars have advanced each night on the position they held at the same hoxir on the preceding night is by no means so small as is, perhaps, commonly imagined. This is easily tested. Let there be an npright of any sort a few yards to the north of the observer's station, and let him notice the exact hour when a star (at a fair height above the horizon) appears from behind the edge of this upright. At this hour on the next night he will find that, as seen from the same station, the star is about two moon's breadths past the upright's edge. The observer should look through a fixed tube placed in the same position on each night. HOW TO LKAEN THE STARS. ; of tlie star-groups, maps may be devised on one of two plaus. Either we may have maps showing the aspect of the heaveiia at different hours and at different seasons; or, we may have maps constructed with sole reference to the star-sphere itself. Maps of the former kind form perhaps the simplest possible introduction to a knowledge of the heavens. If they ars properly constructed, the learner can at once turn to the map Tepresenting the heavens at any hour and season of any year (such maps serve for all years), and then he can at liis leisure compare the stars he sees with those pictured in the map. In my work, entitled Half-Hovrs with the Stars, the maps not .only serve these purposes, tut they show at once towards what point of the horizon and at what height each star is situated. Maps of the second class are, however, absolutely necessary to supplement the information given by the others. AIL considerations are sacrificed to simplicity in the construe- tion of maps of the former kind ; no meridians or parallels can be shown ; none but the brighter stars can appear; only those parts of the star-sphere can be included which actually rise above the horizon ; and a variety of details, which even the beginner soon begins to require,* must necessarily be omitted. Maps of the latter kind form an atlas of the stellar globe, and can be made to include any details which may be desired. The present work is an atlas of this sort. It pictures in twelve maps the stellar sphere which surrounds our earth ; and it is as suitable for use in one country as in others — at our * It must not be supposed, however, that such maps are useful only lor beginners. It is most convenient, even for the advanced student of astronomy, to have a book from which he can at once determine what stars are above the horizon, and in what positions, at any hour of any night. I believe, also, that such a work as my Constellation- Seasons (now out of print), in which the equator, ecliptic, colures, &c., were depicted, is calculated to serve very useful purposes. If the lithographs' of those charts had been better drawn than they actually were (owing to the difficulties met with in transfer work), I should not have suffered the work to be out of print, especially as the sale of the first and only edition was very encouraging. If I should at any time republish the work, I should redraw the maps for photolithographic reproduction. 8 A XSW STAR ATLAS. antipodes as here in England, in the Western as in the Bastem Hemisphere. But a globe may be pictured in maps in many different ways ; some useful for one purpose, some for others. It is necessary to describe the plan on which the present atlas has been formed, before considering its use in helping the student of the heavens. Any flat pictures of portions of a globe must necessarily be somewhat distorted. The larger the portion, the greater will be the distortion. Yet we must not divide the celestial globe into too many parts to form a celestial atlas ; because if we do, the student will be puzzled to know how these parts fit in, so to speak, to form the globe. There is a similar objection to the irregular division of the celestial globe. Some regular plan of dividing the globe into a moderate number of portions must be employed. Only two such plans (out of five which are possible) need be here considered. According to one, the globe is divided into six equal portions ; according to the other, into twelve. The first is easily understood. Imagine a case shaped like a die or cube — that is, with six square sides — the sides being made of some elastic material ; and conceive that by blowing air into this case the six elastic sides are made to bulge out in such sort that the case becomes globe-shaped. Then the six sides, which had been square and flat, are changed into curved surfaces, all four-pointed and all alike in shape and size. If we suppose the star-sphere divided into six such portions, and an atlas constructed to show these portions in six separate maps, such an atlas would correspond to the first plan. The fault of this mode of dividing the star-sphere is that the six parts are too large to be well shown on a flat surface. The distortioh, especially for parts near the corners of the six portions, must be considerable. The plan has been employed in Mr. Keith Johnstone's atlas, and in the atlas published by the Society for Diffusing Useful Knowledge ; but the distortion is so great in these atlases that a small space on the star- sphere occupies an area more than five times greater if it falls near an angle of the map than if it CJls near the centre. The irOW TO LEARN THE STARS. Fig. 1. shape of a star-group is also so modified as to render the recog- nition of the group very difficult. For example, the stars within a small square space, siyh as a a, fig. 1, are thrown into a space of the shape and size of A c, if they chance to fall near the angles of a map.* The other plan (employed in the present atlas) is also readily described. Suppose a piece of card to be cut int6 the form represented in fig. 2, and half through along the dotted lines. Then, if the five pentagons round abode be bent up till / coincides with f, h witli h', and so on, and the like with the Fig. 2. pentagons round q r s t u, and if these sets of six pentagons be bent up (from the line fp) till g coincides with g and g', h with h and h', and so on, a closed fignre will be formed. It is re- presented in two positions in figs. 3 and 4, the dotted lines being supposed to be seen through the figure. Now, imagine the • The shape of the distorted figure will only be as A c when the square space has a certain position with respect to the corner. In other cases A a may be thrown into a diamond-shaped figure as large as a c ; or into intermediate shapes, — always as large, however, as A c. This variety causes the effects of the distortion to be yet more perplex! ng . than they would otherwise be. to :■ ^ ^^^^ STAR ATLAS.. twelve faces of this figure to be made of some elastic materia), and that as in the former case air is blown in until the fie:ure becomes globe-shaped. Then the twelve faces, which had been five-cornered and flat, are changed into curved surfaces, all five- pointed and all alike in shape and size. In the present atlaa the star-sphere is supposed to be divided into twelve such por- tions, one of which is represented in each of the,twelve maps following the two index-maps. The fiye^angles of these five cornered spaces are shown by the five m.arks A on the circular i liprder of each map, but each map includes more than the five- pointed space — in fact each map includes the space within a circle carried (on the sphere) round the five-pointed space Fig. 3. Fig. 4. proper to the map. Thns there results a symmetrical ovei- lapping of the maps, each map overlapping and being over- lapped by five other maps. But for this many star-groups would be inconveniently broken up (as in other star-atlases) where the map-edges fell ; as it is, groups that would be thus broken are shown in two maps. This mode of dividing the star-sphere having been adopted, the next point to be considered was the choice of a mode of presenting the several divisions. I need not enter here into a consideration of the various methods available for mapping any given portion of the heavens.* It will be suffi- * They are described, and their principal properties compared, in my Handbook of the Stars. The properties of the gnomonic projection aE BOW TO LEARN THE STARS. II Fig. 5. cient to note that the plan employed in the present work reduces the distortion to its least possible amount. If the same method of mfipping were employed as in the two celestial atlases above referred to, the present plan for dividing the sphere would still reduce the distortion so greatly that a sphere as k a (fig. 1) would he expanded (near the angles of a map) only to the size and shape a b.* instead of a c. But the method of mapping actually employed so reduces the distortion that a. space as a a, fig. 5, is ex- panded (near the border of a map) only to the size and shape a a' — a distprtion which is not only the least possible in maps including so large a portion of the heavens, but is scarcely discern- ible save by practiced eyes.f applied to the mode of dividing the sphere employed in this atlas, are discussed in the letter-press introduction to my Gtiomnnic Star-Atlas. * In my Gnomonio Atlas this method of Qonstruction is actually em- ployed, and the twelve maps are included in two sheets by the method of arrangement indicated iu i\fi 6. It will be noticed that all the maps Fio. 6. have straight edges (this being a peculiarity which results from the law of projection). The comparison of fig. 6 with the two index-plates in the present work, will ser\-e to illustrate the arrangement of the twelve portions into which the star-sphere is divided. + The following facts serve to illustrate the advantages possessed by the present atlas in these respects over the atlases referred to in the 12 A NEW STAR ATLAS. But it still remains to decide how the twelve divisions of the fltar-sphere shall be portioned out. It is easily seen, however, that since every five-pointed face has a face directly opposite to it (see fig. 4), two such opposite feces should be assigned to -the northern and southern polar regions, the poles of the star- sphere being placed at the centres of these two maps. The remaining ten maps, five northern and five southern, interlap, as shown in fig. 4, their ten common, angles lying alternately north and south, of a medial circle between the two poles (the celestial equator as it is called), represented in fig. 4 by the regular ten-sided figure a b c d e f * text. A small area whose surface would be represented by 14 if it fell at the centre of one of the S. D. TJ. K. maps, is so distorted if it fall near the angles as to have an area of 72, an increase of 58 ; such an area in the present atlas is increased only from 14 to 15 when it falls near the edge of the map, an increase of only I, that is one fifty-eighth part of that in the S.D. U. K. maps. Again, owing to distortion, each map of the S. D. U. K. series covers a surface almost exactly twice as great as that of the corresponding part of the sphere. The maps of the present series cover severally a surface exceeding only by about one twenty- ^ghth part the actual surface tjf the corresponding portions of the sphere. * There still remains some choice as to the adjustment of northern and southern polar maps, and with them the remaining ten maps, but practically the choice rests between two positions. There is a certain circle through the poles called the equatorial colure (see the inde:?-plates), from one half of which all measurements around the celestial equator are taken, as from a starting-place. It is necessary for purposes of symmetry that this half of the equinoctial colure should either pass through an angle of the north polar map, or through the middle of a side. According to the present arrangement it passes through the middle of a side ; the only reason why this plan was pre- ferred being that the boundaries of the maps came thus to be better situated witti respect to the most important star-groups. It happens very fortunately that by the present arrangement all the most impor- tant star-groups are preserved unbroken, in some map or other of the series. (The seven chief stars of the Greater Bear are separated in Maps 6 and 8, but are seen together in Map 1.) I received letters from Sir John Herschel and Professor Do Morgan on this subject. The latter, referring to my Gnomonic Atlas, pointed out the advisability of tryiog to save Orion from being divided. It will be noticed that Orion is thus saved in the present series by means of the overlaps. Sir sow TO LEARN THE STARS. n Thus there are two polar maps, and tpn equatorial maps, five of which are northern and five southern. It is obviously convenient to call the north polar map No. 1 ; to take the ten equatorial maps in order round the equator, beginning with that northern map which is divided through the centre by the equinoctical colure, and taking the rest alternately north and south ; and thus, lastly, there remains the south polar map, which is therefore No. 12. This arrangement is further illustrated by the two index- maps, each of which contains six complete circular maps and parts of other five. The first index -map shows the whole of the northern half of the star-sphere, as well as a zone belonging to the southern half; the second index-map shows the whole of the southern half and a zone belonging to the northern half. It will be understood that although the double circles (which in reality represent the circular ' frames ' of the twelve larger maps) are not equal in size on the planisphere, tliis arises only from the inevitable distortion where so large a portion of the sphere is shown.* A careful comparison of the portions numbered from 1 to 12 in the index-platea with the corresponding maps in the atlaa John Herschel went . 5 „ 7 , 9 „ 11 i, S.-West 3 iN.-West J ^ „ 11 „ 3 ., 5 , 7 „ „ 8 „ 10 ,. 2 , 4 ., 6 1 i.M. Sept. 6 Not. 18 Jan. 30 April 13 June 24 2 a.m. Aug. 21 Not. a Jan. U March 29 June 9 3 A.M. Aug. 6 Oct. 19 Dec. 30 March 13 May 25 4 A.M. July 21 Oct. 3 Deo. 14 Feb. 26 May 10 5 A.M. Julys Sept. 18 Not. 29 Feb. 11 April 25 6 a.m. June 22 Sept. 3 Not. 13 Jan. 24 April 10 Table II. 6 pm. Jan. 25 April 11 June 22 Sept. 3 Not.. 14 7 P.M. Jan. 10 March 27 June 7 Aug. 18 Oct. 30 8 P.M. Dec. 26 March 1 1 May 23 Aug. 3 Oct. 15 9 p.m. Dec. 10 Feb. 23 May 7 July 18 Sept. 30 10 P.M. Not. 27 Feb. 8 April 22 July 3 Sept. 15 11 P.M. Not. 11 Jan. 23 April 7 June 18 Aug. 30 Miduight Oct. 27 Jan. 8 March 22 June 3 Aug. 15 .fl North Map 1 Map 1 Mapl Mapl Mapl S.-East » 4 „ 6 ., 8 „10 ., 2 S.-West „ 2 >, 4 ,. 6 „ 8 „10 '■North -1 I •' 8 „ 10 ,. 2 „ 4 ., 6 c N.-E. 1 East- S,-E. f erly 5 „ 6 „ 8 ,.10 ., 2 ,. 4 1 c -a .9 „ 5 >, 7 .. 9 „11 .. 3 ^ South ' ;3 „ 3 ., 5 ■■ 7 „ 9 „I1 1-1 S.-W. )Wtst- _N.-'W. ) «iy _ ,. 11 >, 3 >, 5 ., 7 .. 9 „ 10 ,. 2 >, 4 „ 6 „ 8 1 A.M. Oct. 11 Dec. 23 March 7 Jlay 19 July 30 2 A.M. Sept. 26 Dec. 8 Feb. 20 May 4 July 15 3 A.M. Sept. 11 Not. 24 Feb. 5 April 19 June 30 4 A.M. Aug. 26 Not. 9 Jan. 20 April 4 June 15 6 A.M. Aug. 11 Oct. 25 1 Jan. 5 March 19 May 31 6 A.M. I July 26 Oct. 9 1 Dec. 20 1 March 4 May 16 sow TO LEARN THE STARS. 21 hours shown in the hour-column. Part of the celestial space shown in Map 3 never rises in our latitudes. The student will notice that the part corresponding to the top of the Maps 2, 3 — 11, lies towards the pole, and that the celestial space corresponding to a map is only placed vertically, so to speak, when due south or due north. But there is nothing in this that need inconvenience him, if he will notice only that the several maps can always be turned round so as to agree with the actual position of the included star-groups. For instance, supposing the observer is ex- amining the part of the heavens shown in Map 4 at midnight on September 21, when this region is situated as shown in fig. 8 ; then, if he holds the map as printed, he will not find the star-groups on the heavens in the same position as in the map. But fig. 8 shows him that the angle where Map 4 overlaps Maps 1 and 2 is uppermost at the moment ; and he has but to hold the map so that this angle (in the upper right- hand corner) is highest, to have the constellations of this map in their proper position. He then has Orion leaning back- wards, as in the heavens at the time, Taurus, over Orion's head, Perseus over Taiirus, the Twins almost horizontal on Orion's left; and so on. But if the hour is midnight on January 8, he finds from Table II. that the space corresponding to Map 4 is in the south-west, high up ; and turning to fig. 9, he finds that this space has the position marked as Map 2. The angle where Map 4 overlaps Map 1 and Map 6 (now placed as Map 4 in fig. 9) is almost exactly overhead. Holding the map with this angle (in the upper left-hand corner) highest, he has the constellation.s in their proper relative positions- Orion leaning forwards, and the Twins over Orion's head, and Taurus facing Orion on his right. And with equal simplicity the suitable position for any map at any hour may be ascertained. The following table will be found convenient also for some purposes. It has been formed from my ' Constellation Seasons ' * * The dates are, however, altered. In preparing the Constellation Seasons I paid careful attention to the sun's varying motion in longitude. 03 22 ^ J^'^W STAR ATLAS. iM^ail^' m^ojIZh' cQ^aiizi cQ^t/jfc aj^cc!^ aj^ai^ :« O a § eg ^ '^ fcD-S S £,-9 J " ?P tT - n- S" - ^ tT , 1^ -2 " H 3 -s 2 I O „- ;5 g ^ fH > -5= § -5= O! § !> ■- iji iHOdri-,cSriof>^ajaotH^t.t2!^^ oS^S;=^ q^varSjnojqssgt-s .BFqWt3 otq^fi PMoop <:ophC) hp-jjo hil BAProctor. Shewing aR the space covered ~hy the six Nor-dierTv rruxps , and. those parts of the- SouJiherrv jrutps which li& North ofJl "Sou^ D&cV' /. WSJiO-.U^- Uta dates round the map arc those' orv Which Ou^ corresponding mo'idiims come to the' South finNor&iem hMitujdes) at mi^bnighA. SOUTHERN ND EX MAP 1880 On tkie, globe the/ circles 12.3.5,1.9 andU are equnl to eclcK other, and. also to those drcLes to whi/^ the. overlaps 2,4^,6.8, and 10 belong RA.Froctor.Del^ Shewing aJZ tJi& space- covered, hv the svjc Soittherrv maps, oJTxl those parts of the Tforihern /naf3s which Le SoidhofWTfoi-thDcc'^ E Wdl^.L-aho The dates round/ the- map are those on ivhich thej corresponding Trtcridijans come' to the South (irbNortherrv ladtujdes) at rrddrdqht sa MAP STAR MAGNITUDES o _ First o = Second « Third - Fourth • FWi • „ Sixth fandu/i^erj ^ - iVeJuZo. RA.FriiaoT,Ilei. ANNO 1880 TliaArrows indioaZe- the' Precesswnal motion for 100 Years E.WeOer.Liiho. AB B R EVI ATI NS R or Ru — Red. Tr — Trmary V or Va - VarLikU 1' - 21 Fiazzi Dor Du- Double H = Sir W.Scrschel T - Triple h = Sir J. Berschel Q a. = Quadruple I — Struve Qi — Quintuple A - DurHop B « Binary Ruf =Svspected' Med, B^ = Suspected/ Binary Wl itDChStor) — MvJjtipl& M (to aNehulcLi — Messier IOYtoaiV"eittZa;»H,V. 10. &C'^ MAP 2 STAR MAGNITUDE o = First o Second o ^ Third = Fouith. • FiftlL • „ Siaih (andtmderj ff = A^e^^uZo. Lo7ido7i,L( ANNO 1880 The Arrows uidicat£ the Preccssional motion for 100 Years AB B R EVIATIO NS R or Ru - Re^t Tr - TriTiary V or Va - Variahle 1' = 21 Fiazzi D or Du - Double, W -- Sir }^:Se/'Schel £.WeUer,Ziiho. — Triple h — Su^ J. Eei'schcl ■= Quadruple Z — Struyc - QiMTituple A - Dimlop •''Binary Ha'-'SiLspectedllecL B' = Suspected' Binary M ItoOuStar' —Multiple M 'to aNebiJa}- Messier \Q^(tocbNebijJiLJ- H.V. 10. s&C MAP 3 „ Sucilv (ancL under) R-A.Froaar.I)tV. ANNO 1880 TheArrows indicai& ih£/ PrecessionaL motion for 100 Years ABBREVIATIONS E .WdUr. Litho Ror Ru-iJcd Tr - Triruary Vor Va - Variable 21 - 21 Pia^i Dor 0\i- Double H - SirWEersdid T -Triple h — Sir J.SerscheZ Qa = Quadruple I — Struve Qi — Qmntuple A - Durdop B = Bituuy H]i^ •^Suspected Beci B? - Svspeciei Binary M (toa^Starl - JifultipZe M (tocblfehxjjcul- Messier tO^ftncuNebulal- H.V. 10. :&C? MAP 4 STAR MAGNITU (and under) SiAJh>cCor,Dei: ANNO 1880 ThcJrroH's indicate die PrccesswnaLmotwnfor 100 Years WdUr.LiOu). REVIATIONS Tr- Trincoy ■ l^anoM- l> - 2) J=i^^^ -DouhU n-Su-WHerschd -Triple: ^ - Sir J.Hers6hd, - QuaAapU Z - Stnive - QmmupU A - Durdcp 'Bi^ U^ -Suspected ReA ' ^ Suspected. Binajy toaStarl -Multiple y alfebuiz' — 'Messier oaNd>uIa.l- H.V. 10. •c? MAP 5 SiocOi ANNO 1880 ThiArrows miioaa ifie/ Precesswnalnwtionfor 100 Years E.WdUr.LiAo ABBREVIATIONS RorRu-R!Iiedy B- = Suspected/ Binary M (tocuStorl —Multiple/ M (to a]!^ebula,^ — Messier \0^(tca/Nehula,}^ H-V. 10. 5^ C? MAP 9 STAR MAGNITUD o - FltsT o Second o _ Third _ Fourth • _ FMh • . Sixth fajiili under ^ =. Nehulcu I'ondan. ANNO 1880 Th&ATrows indicate' the/ Frecessi/mxH mntiorL far 100 Yeoj-s- E WeOer-Liiho. AB B R EVI ATIO NS R or Ru = Red. Tr -= Trinary V or Va - Variable 1' - 21 Piazzi- D or Du - Douhle. H - Sir WSerschel T — Triple- h = Su" J.Herschel Qa. ■= Quadruple. Z — Struyc Q i "■ Quintuple A — Dunlop B = Birtary R\x' = Suspected Jted' B- = Suspected Binary M ftoCLStar) —MiJjtip'l& M ftoal^ehujajl" Messier XQ^ftocuNehvlaJ- H .V. 10. ^ <£<::? M /\ P 10 STAR MAGNITUDES o =. First o Second o Third o Fmardt • „ KfOt . Sixili, " faiui imtk/-} R^i.Froctor.D&i'^ ZoTldoTb.Zl ANNO 1880 Th&Arrows inBicata ifiA ^ecessionalnwtiorLfor lOOTear^ EVIATrONS Tr- Trinary Double H~SirKHerschel JripU h-Su-JHaschel QuaJrupU Z - Stria,c ChiiU^pU A _ Dunlop Bina^ R^USuspecbdReA iuspccbeJb Binary la-Starl -Multiple, aNehulcLl - Messier • aNdrulcL)-. H.V. 10. MAP M R MftGNITUDES O _ First o = Secancb o . Tfdrd, o _ Faurih • _ KftTi • Sixtiv ian3.jmder) l^ebuixL RJ..I^octor. Dei: ANNO 1880 Th&Arroivs indicate/ the/ Prec&ssionaL motion for 100 Tears E. WeUer. Litho. R EVI ATIO NS ■ Red/ Tr - Trinazy - VarCahle. 1' — 21 Fia^zi ■ Double H-^Sir WBerschel - Triple. h = Su^ J.SersckeZ - Qmtdruple I — Struye ~ Quintuple^ A — Diailop =■ Binary Hii? "Suspecteidlieoi B- = Suspectecb Bijiajy M itoo/Star} —Muhiple/ M ftaa,J^ehula/)-~MEs^ier \0^futa.Ifebida,H H-V. 10. MAP 12 STAR MAGNITUDES O = First o = Seconii O = Thrd =. Fourth • = FMi. • _ Sirih (a/idvnda-J , = 'Nebula^ RAFroaoT.Dd.* ANNO 1880 J7icArro}fs indicate' dvei PrecesswndlmDtiorL for 100 Yeojrs EVIATIO NS Tr— Ti^inary Varuible L' = 21 Pia.zzi DouhU W'-Sir W.Rersi^l Triple h - Sii- J. Herschel Quadruple I — Strove Qidniufile A - Dunlop Binary Rix? = Suspected Jted- ■ = Suspectecb Binary ftocbStar) —Multiple/ (to auNebviln,} — Messier Wel>ula.l~ H.V. 10. 39 Paternoster Row, E.C. London, Ap-il 1881. GENERAL LISTS OF WORKS PUBLISHED BY Messrs. 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English Literature 6 Authors 6 Amott's Elements of Physics 10 Atelier (The) du Lys 19 Atherstone Priory 19 Autumn Holidays of a Country Parson ... 7 Ayre's Treasury of Bible Knowledge 2r Bacon's Essays, by Whately 6 Life and Letters, by ^^Si;?^^^ ... 5 ' Works 5 Bagehot's Biographical Studies 4 Economic Studies 21 Literary Studies 6 Bailey's Festus, a Poem 19 Bain's Mental and Moral Science 6 on the Senses and Intellect 6 Emotions and Will 6 Baker's Two Works on Ceylon 17 Sa/A Alpine Guides 18 Elements of Astronomy 11 Barry on Railway Appliances 11 Baitennaii syiiTvtr^Qigj 10 Beaconsfield' s (Lord) Novels and Tales 18 & 19 Becker s Charicles and Gallus 8 Beesly's Gracchi, Marius, and Sulla 3 5/ac]l'j Treatise on Brewing 21 BlacMey's German- English Dictionary 8 Blaine's Rural Sports 19 S&jfaw'j Metals 11 Bolland and Lang's Aristotle's PoUtics 5 Boultbee on 39 Articles 15 's History of the English Church... 15 Bourne's V/orks on the Steam Engine 14 Bowdler's Family Shakespeare 19 Bratnley-Moore s Six Sisters of the Valleys . 19 Brandos Dictionary of Science, Literature, and Art 12 Brassey on Shipbuilding 14 Brassey's Sunshine and Storm in the East . 17 Voyage of the ' Sunbeam ' 17 Browne's Exposition of the 39 Articles 15 ^n^M^Zi^^j Modern England 3 Buckle's History of CiviUsation 2 Buckton's Food and Home Cookery 21 Health in the House 13 Town and Window Gardening... 12 Bull's Hints to Mothers 21 Maternal Management of Children. 21 Bunsen's Angel-Messiah 16 Burgomaster's Family (The) 19 Buried Alive 18 Burke's Vicissitudes of Families 4 Cabinet Lawyer 21 Ca/w'j Age of the Antonines 3 Early Roman Empire 3 Carlyle's Reminiscences 4 Cffl/« 'j Biographical Dictionary 4 Cflj/^y^ Iliad of Homer 19 Changed Aspects of Unchanged Truths ... 7 Chesney's Waterloo Campaign 2 Church's Beginning of the Middle Ages ... 3 Colenso on Moabite Stone &c 17 's Pentateuch and Book of Joshua. 17 Commonplace Philosopher 7 Comte's Positive Polity S Conder's Handbook to the Bible 15 CoK^«i/e'j Politics of Aristotle s Conington's Translation of Virgil's ^neid 19 Miscellaneous Writings 6 Contanseau' s Two French Dictionaries ... 8 Conybeare s.ni Howson' s St. Paul 16 Cordery's Struggle against Absolute Mon- archy 3 CotiaoTL.'&ai^s.'bY Lawrence 12 Counsel and Comfort from a City Pulpit... 7 Cox's (G. W.) Athenian Empire 3 Crusades 3 > Greeks and Persians 3 Creighton's Age of Elizabeth 3 England a Continental Power 3 Shilling History of England... 3 Tudors and the Reformation 3 Cresy's Encyclopaedia of Civil Engineering 15 Critical Essays of a Country Parson 7 Crf^tJ^^y^ Chemical Analysis 13 Culley's Handbook of Telegraphy 14 Curteis's Macedonian Empire ...'. 3 Davison's Thousand Thoughts 7 De Caisne &n& Le Maout s '&o\3.uy 12 De Tocqueville's Democracy in America... 5 Dixon's Rural Bird Life 12 Doyle's {K.) Fairyland 13 Dun's American Food and Farming 21 Eastlake's Foreign Picture Galleries 13 Hints on Household Taste 14 £(/TOa?-a'f on Ventilation &c 21 Edwards's Nile 17 £//zc(7«'j Scripture Commentaries 16 Lectures on Life of Christ 15 Elsa and her Vulture 19 Epochs of Ancient History 3 English History , 3 Modem History 3 Ewalds History of Israel 16 Antiquities of Israel 16 ^iZzV^tzzVK'j Applications of Iron 14 Information for Engineers 14 Mills and Millwork 14 Farrar's Language and Languages 7 Francis's Fishing Book , 19 Freeman's Historical Geography 2 Froude's Csesar 4 English in Ireland i History of England i Short Studies 6 Gairdner's Houses of Lancaster and "York 3 Ganot's Elementary Physics g Natural Philosophy 9 Gardiner's Buckingham and Charles I. ... 2 Personal Government of Charles I. 2 WORKS published by LONGMANS &• CO. 23 Gardiner s Puritan Resolution 3 Thirty Years' War 3 German Home Life 7 G/to;2'j Cavalier's Note Booli 7 Goethe sYzxat., by Birds 19 by Selss 19 by Webb 19 Goodeve's Mechanics 11 Mechanism 14 Gore's Electro-Metallurgy 11 Gospel (The) for the Nineteenth Century . 16 Grant's Ethics of Aristotle 6 Graver Thoughts of a Country Parson 7 Grevilles Faiths and Fancies 6 Journal i Griffin's Algebra and Trigonometry 11 Griffith's A B C of Philosophy S Grove on Correlation of Physical Forces... 10 Gwili's Encyclopaedia of Architecture 14 /fa&'j Fall of the Stuarts 3 Hartwig's Works on Natural History and Popular Science 11 Nassau's Climate of San Remo 17 Haughtons Physical Geography 11 Hawthorne's Fairy Stories iS Hayward's S&l&cied'E.ss^ys 6 Heer's Primeval World of Switzerland 12 Helmholtz on Tone 10 Helmholtz' s Scientific Lectures 10 Herschets Outhnes of Astronomy 9 Hillebrand' s Lectures on German Thought 6 Hobson's Amateur Mechanic 14 //o/^/nj'j Christ the Consoler 17 Horses and Roads 20 jy«;So/ri'i Engineer's Valuing Assistant ... 14 HullaKs History of Modern Music 12 Transition Period 12 Hume's'Essz.ys 6 ■ Treatise on Human Nature 6 Ihne's Rome to its Capture by the Gauls... 3 History of Rome 2 Ingelow's Poems 19 Jamesons Sacred and Legendary Art 13 Memoirs by Macpherson 4 Jenkitis Electricity and Magnetism 11 Jerrold's Life of Napoleon 1 Johnsons Normans in Europe 3 Patentee's Manual 21 Johnstons Geographical Dictionary 8 Jukes's Types of Genesis 16 yz^to on Second Death 16 ^«/M''j History of India 2 Ancient and Modem History ... 4 (Jeremy) Works, edited by Eden 17 Text-Books of Science 11 Thomi's Botany n Thomson's Laws of Thought 6 7'Ao;2>e'i Quantitative Analysis ii Thorpe and Muir's Qualitative Analysis ... 11 Thudichmn s Annals of Chemical Medicine 13 T'z'/tiM'j Chemical Philosophy 11 Practical Chemistry 12 Todd on Parliamentary Government 2 Tozer's Armenia and Asia Minor 17 Trench's Realities of Irish Life 17 Trevelyan s lAfe oi Voii 2 Trollope's Warden and Barchester Towers 18 Twiss's Law of Nations 5 7>«£fa/"i (Professor) Scientific Works ... 10 Unawares 19 I/«to/b'j Machine Design n Ure's Arts, Manufactures, and Mines 14 Venn's Life, hy Knight 4 Ville on Artificial Manures is PFa/fe?- on Whist 21 Waipole s liiisXoxy oi England i Warburton s Edward the Third 3 Watson' s QtoraA^ry 11 Watts' s Dictionary of Chemistry 13 Webb's Celestial Objects 9 Civil War in Herefordshire 2 Veil of Isis 6 I'Ke/rf'j Sacred Palmlands 17 Wellington s Life, by Gleig 4 Whately's English Synonymes 8 Logic 6 : — Rhetoric 6 White's Four Gospels in Greek i5 and Riddle's Latin Dictionaries ... 3 Wilcocks's Sea-Fisherman 20 Williams' s h-!\%1oW€s Ethics 5 Wilsons Resources of Modern Countries... 21 Wood's (J. G.) Popular Works on Natural History 11 Woodward' s Geology 12 Yonge's EngUsh-Greek Lexicons 8 Youatt on the Dog and Horse 20 Zellet's Greek Philosophy 3 Spottlsvjoode &^ Co. Printers, Ne^v-strcet Sq^iare, -London.