Modem SckoQi 
 
 Const ruction 
 
 TRUSSED 
 CONCRETE 
 STEEL CO. 
 
 DETROIT, MICH. 
 
MODERN SCHOOL 
 CONSTRUCTION 
 
 FIREPROOFNESS 
 
 SOUNDPROOFNESS 
 
 DAYLIGHTING 
 
 SANITATION 
 
 ECONOMY 
 
 4 
 
 ▲ 
 
 
 FKAHN 
 Building 
 Product^ 
 
 ^ TRUSSED 
 CONOR 
 \ STEEL 
 CO / 
 
 
 V 
 
 (.'upyr/g/jt 1914 
 Trusicd Concrete Steel Co. 
 
 Trussed Concrete Steel Co. 
 
 DETROIT, MICH. 
 
 c. BENSON WIGTON, C. E. 
 
 engineer and agent 
 141 MILK ST.. BOSTON. MASS 
 
2 
 
 Modern School Construction. 
 
 iliiii 
 
 WV9T1| 
 
 ■uummiuL mtiitmiiiL 
 
 
 r 
 
 
 lU 
 
 
 
 
 High School, Muskogee, Okla. 
 
 Built Kahn System of Reinforced Concrete. 
 
 Ilausnii. Kt'diaii & X'aleiii', .\rc'Iiilcii. 
 
 High School, Bloomfield, N. J. 
 
 Built Kah n System Reinforced Concrete. 
 
 I li.n Ic> (Iranvillf Joiu’s. Arcliitcrt. 
 
Trussed Concrete Steel Co., Detroit. 
 
 n 
 
 Safety in School Construction. 
 
 Many advances have been made during recent years in the design and construc¬ 
 tion of school buildings. Scientific study and thorough investigation has been given 
 to such features as the arrangement of rooms, better lighting, improved ventilation, 
 modern sanitation, fireproofness, soundproofness and economy. The many improve¬ 
 ments in modern schools have resulted in a higher standard of scholarship and of 
 health among the students. 
 
 ‘ Safety First’ is a brief expression which indicates the prominence of the pres¬ 
 ent-day movement for the better protection and safeguarding of human lives. No¬ 
 where should this appeal have a greater consideration than in the construction of 
 school buildings. Here are housed hundreds of little children with neither the strength 
 nor the experience to protect themselves in the face of such dangers as fires. 
 
 The necessity for fireproof construction of schools is now generally recognized by 
 School Boards and tax payers. There is no need to picture the horrors of a Collings- 
 wood calamity nor the long list of school fires occurring every year. The lessons of 
 these disasters have been well learned by thinking people. The laws of many States 
 now require fireproof construction throughout for schools of any size, and even in the 
 smaller buildings fireproof corridors, stairs and boiler rooms. There is no doubt but 
 that every section of the country will adopt similar laws in the near future. 
 
 The cost of fireproof construction has been greatly reduced by the introduction 
 of reinforced concrete in building schools. Fireproof, modern schools now cost little 
 if any more than the old style, inflammable building, with masonry walls and wood 
 joists. Reinforced concrete is used in many parts of the building, including floors, 
 roofs, stairs, partitions, ceilings, etc. The exterior design may be of masonry, brick 
 or concrete as desired. 
 
 The proper distribution of daylight throughout the rooms (usually obtained 
 from one side only) requires serious consideration in the construction of the windows 
 The use of modern steel sash assures maximum daylight from the window openings. 
 There are no wide mullions or muntins to obstruct the light. 
 
 The following pages indicate a few suggestions for the proper construction of 
 schools, as well as a number of photographs of typical installations. The wide extent 
 to which Kahn Building Products have been used in school buildings has given our 
 engineers an exceptional experience along these lines. Their suggestions are sure to 
 be useful and are furnished free of all obligation. 
 
4 
 
 Modern School Construction. 
 
 Floor Construction for Schools. 
 
 FIREPROOFNESS: By making the floors of schools fireproof, the greatest fire clanger is elim¬ 
 inated, because the fire can then be confined to one locality without communicating to floors above 
 or below. The earlier methods of constructing fireproof floors usually involved steel girders with 
 heavy arches. The great expense of such construction often made its use prohibitive. The 
 introduction of reinforced concrete not only reduced this cost but brought many other advantages, 
 such as flat ceilings, lighter weight, simplicity, etc. Various types of reinforced concrete are used, 
 including steel Floretyle, reinforced terra cotta tile, reinforced solid concrete, etc., as indicated in 
 the following pages. 
 
 SOUNDPROOFNESS: Floors of reinforced concrete are soundproof—an important advantage in 
 schools. Steel Floretyle and reinforced terra cotta tile are very superior in this respect, owing to 
 the insulating qualities of the dead air spaces in the tile. No noise or sound can possibly be 
 communicated between floors. 
 
 STRENGTH AND SAFETY : Numerous tests under severe conditions by Public Building Bureaus 
 and on actual installations have repeatedly demonstrated the exceptional strength of reinforced 
 concrete construction. These tests include not only heavy load, but severe fire tests. The test 
 loads on actual floors have often been four times the required carrying capacity, without show¬ 
 ing any signs of weakness. Reinforced concrete floors are also very rigid and free from vibration, 
 as demonstrated in many industrial buildings where heavy vibrating and pounding machinery is 
 placed directly on the floor. 
 
 SANITATION: Reinforced concrete floors insure the best sanitary conditions. Being of masonry 
 construction there is no lodging place for germs or vermin of any kind. Compare this with wooden 
 construction with its open timbers and its tendency to become damp and unsanitary. 
 
 ECONOMY : Reinforced concrete is much more economical than any other construction when 
 one considers its permanence and the saving of insurance. As a matter of fact, when reinforced 
 concrete floors are properly combined with other features of the construction, the first cost is little 
 if any more than the old style buildings with wood joists. Its economy in the long run can be 
 readily demonstrated by actual comparative figures. 
 
 FLAT CEILINGS: School rooms are ordinarily from 20 to 30 feet in width and it is desirable 
 to have a flat ceiling over them with no projecting beams to collect dirt and interfere with light¬ 
 ing. This is readily accomplished on long spans by the use of Floretyle or reinforced terra cotta 
 tile construction, and in shorter spans by reinforced solid concrete. In all cases the floor con¬ 
 struction spans the full width of the room, giving an absolute flat ceiling free of all beams and 
 projections. Compare this with the earlier types of fireproofing with steel girders, which not only 
 had beams projecting below the ceiling, but which were considerably more expensive. 
 
 FLOOR FINISH: Any type of finished floor may be laid upon the reinforced concrete construc¬ 
 tion. Ordinarily a wooden floor is desired and can be readily obtained by placing small wooden 
 sleepers on top of the construction, filling in between them with cinder concrete and attaching 
 the finished floor to them. Finished floors of cement, tile, terrazzo or composition are often laid 
 on the concrete construction, particularly in corridors, auditoriums, etc. 
 
Trussed Concrete Steel Co., Detroit. 
 
 o 
 
 STEEL FL0RETYLE5 
 
 Sectional view of 
 ^ Floretyle construction 
 from above. 
 
 <o 
 
 Steel Floretyles, the Ideal Construction 
 for Floors in Schools. 
 
 Steel Floretyle construction as shown in the illustration, consists of rows of hollow steel tile, 
 separated by reinforced concrete joists and covered with a thin layer of concrete. These narrow 
 joists carry the loads directly to the supports, while the Floretyle act merely as fillers, saving 
 concrete and reducing dead weight. Hy-Rib extends continuously underneath and provides a 
 flat ceiling and a perfect surface for plastering. 
 
 The many advantages of Steel Floretyle Construction make it particularly adapted for school 
 floors. Flat ceilings over all rooms are assured as spans up to 30 ft. and greater can be readily 
 secured without the use of any intermediate beams. Furthermore, this ceiling construction is light 
 in weight, owing to the heavy masses of concrete that are saved by the hollow Floretyle. The 
 reduced weight makes a corresponding saving in all the supporting construction. 
 
 Soundproofness of floors is assured by the insulating qualities of the dead air space formed 
 by the Floretyle. These open spaces also greatly simplify the location and the installation of 
 ventilator flues of which a great many are required in modern schools; also conduits and pipes 
 can be readily carried along the length of the Floretyle without cutting or weakening the con¬ 
 struction. 
 
 The great strength of Floretyle construction has been repeatedly demonstrated by elaborate 
 tests, and hundreds of installations in important buildings. The Railway Exchange Building in 
 
 Sectional perspective 
 from below, showing deep 
 stiffening ribs in Floretyles and 
 flat ceiling of Hy-Rib, partly plastered. 
 
f) 
 
 Modern School Construction. 
 
 Use of Floretyles at Couzens Building, Detroit, Mich. 
 
 Note the true lines of joists and the great rigidity of Floretyles. 
 
 St. Louis is a block square, twenty-one stories high, and contains over thirty acres of Floretyle 
 construction. A full-sized panel of this Floretyle construction was built under severest weather 
 conditions and tested with a load of 491,651 lbs., without showing any sign of weakness. 
 Numerous other tests have been made, such as for the Marcus-5^hitman School described on next 
 page. Floretyle construction has been approved and passed by the Building Bureaus of all 
 principal cities of the country. 
 
 Floretyle construction is very simple to install. Labor, time and material are saved by the 
 simplicity of the centering, the large size of the Floretyles and the wide spacing of the joists. 
 This construction can be used with equal success in all parts of the country, as the Floretyle and 
 reinforcement are readily shipped at low freight rates. 
 
 Floredome Construction. 
 
 Steel Floredomes present all the advantages 
 of Floretyle construction, but are adapted for 
 two-way construction in which the loads are 
 carried in two directions to the supports. The 
 metal domes are deeply corrugated to secure 
 stiffness and are only open on the underside, 
 so that the joists extend on all sides of the 
 dome. 
 
Trussed Concrete Steel Co., Detroit. 
 
 Load 30,800 lbs.; 225 lbs. per sq. ft. 
 
 Deflection .56 in. 
 
 Load 41,000 lbs.; 300 lbs. per sq. ft. 
 Deflection .92 in. 
 
 An Exhaustive Test on Floretyle Construction 
 
 for Marcus Whitman School, Spokane, Washington. 
 
 In this remarkable test Floretyle Construction developed a strength five times as great as 
 the load for which it was designed. The test was conducted prior to the construction of the 
 .Marcus-Whitman School on a full-sized panel having a clear span of 26 feet and width of 5 
 feet 3 inches. The construction was designed for a safe live-load of 75 pounds per square foot. 
 
 The floor consisted of three concrete joists, each reinforced with one Kahn Trussed Bar 
 and separated by steel Floretyle of standard design, 10 in. deep and 20 in. wide. The total 
 thickness of the slab was I 3 in. The test was conducted very carefully with the co-operation 
 of the City Engineer and his assistants. Deflections were accurately measured at 9 points in 
 the span by means of instrument readings upon bolts imbedded in the concrete. 
 
 The slab was originally loaded with 20,500 lbs. of pig iron equal to 150 pounds per sq. 
 ft., with a maximum deflection of 1 3 32 in. After the removal of the load, the slab returned 
 to practically its original position. 
 
 On the following day, the slab was tested to its ultimate carrying capacity. Under a 
 loading of 20,500 pounds, the deflection was .2 7 inch, equivalent to I 1 100 of the span, 
 while the City Building Code allows a deflection as great as 1 700 of the span. No cracks nor 
 signs of weakness were apparent under this loading. 
 
 The test was continued and the deflections under loadings of 30,800 pounds, 41,000 pounds, 
 and 51,000 pounds, were .56 inches, .92 inches and 1.5 inches. Above this loading the deflec¬ 
 tions increased gradually until over six inches before failure occurred at 52,000 lbs. This load 
 is equivalent to 375 pounds over every squaie foot of floor, or five times the load for which 
 the slab was designed. This test, as well as numerous others, prove conclusively the wonder¬ 
 ful strength, safety, and rigidity of Floretyle Construction. See photograph of Marcus Whit¬ 
 man School, page 38. 
 
 Deflection of 6 in. before Gradual Failure at Center 
 Under Load of 52,000 lbs. (375 lbs. per sq. 
 ft.) Five times the designed load. 
 
 Load 51,000 lbs.; 3 70 lbs. per sq. ft. Deflection 
 1.50 in. Designed for 10,240 lbs. (75 lbs. 
 per sq. ft.) 
 
8 
 
 Modern School Construction. 
 
 Detail of Window Framing Into 
 Concrete Lintel Beam. 
 
 Cross Section Reinforced Hollow Tile Floor. 
 
 tFySxez—x ,.*!.— . — • 
 
 Detail of Framing Reinforced Concrete Columns, Beams 
 and Floors. 
 
 Reinforced Hollow Terra Cotta Tile Construction. 
 
 Terra Cotta Tile Construction possesses many of the advantages of Steel Floretyle Construe- 
 tion, but to a much more limited degree. In this construction also, the hollow tile are separated 
 by reinforced concrete joists which carry the full weight of the construction, assuring flat ceil¬ 
 ings of long span, extending across the width of the room. Terra Cotta Tile, however, is much 
 heavier than Steel Floretyle and, therefore, increases the weight of the floors; also the joists 
 are 16 in. instead of 24 in. on centers, requiring more concrete and increasing the labor in placing. 
 Terra Cotta Tile is limited for use in localities near tile plants; otherwise the freight on the tile 
 would make it too costly. This construction is thoroughly soundproof and fireproof, allows sim¬ 
 ple installation of ventilator flues and conduits, and has been very extensively used throughout 
 the country in the construction of school floors. 
 
 Reinforced Solid Concrete Construction. 
 
 Solid concrete reinforced with steel is frequently used for floors of schools, but is only 
 recommended for shorter spans, less than 12 ft. For greater spans its weight would be excessive 
 and Steel Floretyle or Terra Cotta Tile should be used. Where a solid concrete construction is 
 desired for longer spans, intermediate beams of reinforced concrete are used. These beams 
 span the width of the room and are spaced 4 ft. to 8 ft. apart, supporting a thin reinforced 
 concrete slab. This type of construction affords ample strength but has the disadvantage of 
 projecting beams which collect dirt, interfere with lighting and are unsightly in appearance. Solid 
 concrete is also not as soundproof as Floretyle or Terra Cotta Tile, and presents greater difficul¬ 
 ties in the location of conduits and ventilators. 
 
Trussed Concrete Steel Co., Detroit. 
 
 
 li. H. i'otter, Architect. 
 
 Stairs and Corridors, High School, Glens Falls, N. Y. (See Photograph Page 31). 
 
 Kahn System Reinforced Concrete Stairs and Floors. 
 
 Reinforced Concrete Corridors and Stairs 
 
 No matter what type of construction may be used in the rest of the building, the Corridors 
 and Stairs should be built absolutely fireproof, so as to provide safe means of exit and to delay 
 the spread of the fire. The floors of the corridors are built of any of the various types of rein¬ 
 forced concrete previously described. Stairs and stair landings are constructed of solid concrete 
 reinforced with steel and can be of any desired design to suit all requirements. Corridors and 
 stairs built in this way have the greatest possible resistance to fire. 
 
 Floors Over Boiler Rooms 
 
 All floors over boiler rooms or fuel storage rooms should be of the best possible fireproof 
 construction of reinforced concrete. This is imperative, no matter what the construction of the 
 rest of the building may be. Fires very frequently originate in boiler rooms and by using a 
 precaution of this kind, at least one of the fire dangers is eliminated. 
 
Id 
 
 Modern School Construction. 
 
 General Features of Construction 
 
 The use of fireproof construction for floors in schools has often consisted merely 
 in the substitution of reinforced concrete for wood joists without affecting in any way 
 the general arrangement of supporting walls, both exterior and interior. In such a 
 construction these walls are built heavy enough to support the floor construction, 
 which spans directly between them. The light weight of Floretyle construction greatly 
 reduces the loads coming on such walls. 
 
 A considerable saving in the cost of the school is effected by using a frame work 
 of reinforced concrete girders supported on columns in place of the heavy interior 
 walls, which then become merely dividing partitions. As these partitions do not carry 
 any loads, they can be built very thin of Hy-Rib construction (see page 12), being 
 only 2 in. thick. The saving in space is over 1 2 in. in the width of each room as a 1 7 
 in. brick wall would ordinarily be required. This makes a considerable reduction in the 
 width of the building, effecting material savings in all parts of the construction and 
 greatly reducing the total cost of the school. Savings of this nature will often counter¬ 
 balance the slight additional initial cost of fireproof construction. 
 
 Some designers carry the same system of supporting girders and columns into the 
 outside wall construction, using what is known as skeleton frame design. Outside 
 walls then become light curtain walls which do not carry any loads, as the floors are 
 carried at each floor level by girders and columns. The concrete construction is often 
 left exposed on the exterior but some designers prefer to veneer it with layer of brick 
 or terra cotta. Skeleton frame construction often presents decided advantages in speed 
 and economy, as the entire framework of floors, girders and columns is erected in one 
 operation without the delays occasioned by building supporting walls. 
 
 Any type of floor designs, previously described, may be used in connection with the 
 above general methods of construction. Variations or combinations of them may be 
 adopted to suit individual requirements. Our engineers would be glad at all times to 
 make suggestions as to the most economical and satisfactory construction. 
 
 Semi-Fireproof Construction 
 
 Occasionally in small schools it is desired to reduce the cost of construction to a 
 very low figure and at the same time secure a construction of some fire resistance. For 
 such buildings, the old-style wood joists may be retained but in place of the wood lath 
 ceiling, use metal lath, plastered with cement mortar. Also use this metal lath for all 
 partitions and furring. This metal-lath-cement construction possesses considerable fire- 
 resistance and materially retards the spread of flames. 
 
 Old school buildings with wood joists and studs can be remodeled so as to be made 
 at least partially fireproof by the use of metal lath and cement plaster in ceilings, parti¬ 
 tions and walls. 
 
Trussed Concrete Steel Co., Detroit. 
 
 11 
 
 Leading Architects and Contractors Endorse 
 Kahn System Construction. 
 
 Malcomson & Higginbotham, 
 
 Architects, 
 
 Detroit, Mich. 
 
 "The Kahn System of Reinforcement as installed in 
 several of our recent Detroit Schools has proven very 
 satisfactory, not only on account of its simplicity, but 
 because also of its evident economy and permanency. 
 
 “Though seemingly long in coming, we believe that 
 the day has now passed when anything but fireproof 
 construction will be used in Detroit School buildings.” 
 
 Hewitt & Bottomley, 
 
 Architects, 
 
 526 Fifth Avenue, 
 
 New York. 
 
 “In grammar and high school buildings at Southamp¬ 
 ton, Long Island, we found Floretyle system of floor con¬ 
 struction economical and satisfactory. On tests made 
 .August 16th, 1913, before the Board of Education, the 
 deflection for 22 ft. span, typical class room floors was 
 only one-tenth inch. For concrete work of this kind .66 
 inch deflection would be allowed in good engineeering 
 practice. We consider the Floretyle system as tested un¬ 
 der our supervision exceedingly satisfactory.” 
 
 Richards, McCarty & Bulford, 
 
 Architects, 
 
 Columbus, Ohio. 
 
 “We have used the Kahn System Floretyle construction 
 and found it very satisfactory.” 
 
 Vernon Redding, 
 
 Architect, 
 
 Mansfield, Ohio. 
 
 “1 am well pleased with Steel Floretyle construction as 
 used in large business blocks here.” 
 
 W. H. Isgrigg & Son, 
 
 Architects, 
 
 Pontiac, Mich. 
 
 “We have used combination Steel Floretyle an d Hy- 
 Rib Construction on the Pontiac High School, and it has 
 been entirely satisfactory.” 
 
 Burrowes & Wells, 
 
 Architects, 
 
 Detroit, Mich. 
 
 “We do not hesitate to express our complete satis¬ 
 faction in the use of Kahn System products and in their 
 business methods, having used their various types of tile 
 and solid concrete construction. They are a large, ex¬ 
 perienced and thoroughly reliable institution, and judg¬ 
 ing by our success in the use of their materials and 
 methods, we feel that you need have no hesitancy in 
 accepting their suggestions.” 
 
 Mildner & Eisen, 
 
 Architects, 
 
 Detroit, Mich. 
 
 “We have used Kahn System in many important 
 buildings and in all cases they have proved very satis¬ 
 factory in every respect. We are glad to recommend 
 Trussed Concrete Steel Company’s materials and also 
 their prompt attention to all contracts. ” 
 
 F. O. Engstrum Company, 
 
 Contractors, 
 
 Los Angeles, Calif. 
 
 “We are general contractors and have used Steel 
 Floretyle construction in three large apartment house 
 buildings of our own. We find it to be most economical 
 and satisfactory in every way.” 
 
 Frank N. Cooper, 
 
 Contractor, 
 
 Detroit, Mich. 
 
 “1 have used Steel Floretyle Construction in the De¬ 
 troit Home and Day School with great success. 1 am 
 immensely pleased with this type of construction and the 
 excellent results obtained, and cheerfully recommend it.” 
 
 Almion Engineering & Contracting Co., 
 Contractors, 
 
 New York. 
 
 “We have used Floretyle construction in several school 
 buildings and without doubt found it the best product of 
 its kind for floor construction. " 
 
 John Lowry, Jr., 
 
 Contractor, 
 
 New York. 
 
 “We have used FJoretyle construction extensively with 
 great satisfaction. In every case our test on completed 
 work showed this system to be more than claimed. Rigid 
 care and best workmanship are fundamental with us and 
 with these premises, there is no better system.” 
 
 Hurley Mason Co., 
 
 Contractors, 
 
 Portland, Ore. 
 
 “We have built many buildings, using Floretyle con¬ 
 struction, including several hotels, one of which we own. 
 We have had no complaints concerning the passage of 
 sounds through these floors. We believe the hollow feat¬ 
 ures make these floors more soundproof than the solid 
 slab.” 
 
12 
 
 Modern School Construction. 
 
 Solid Hy-Rib Partitions. 
 
 Hy-Rib is a steel sheathing stiffened by deep ribs formed from the same sheet of 
 steel. The large sheets of Hy-Rib are attached at floor and ceiling, plaster is applied to 
 both sides and the partition is complete. No studs or channels are required, and the 
 expense of wiring lath to studs is eliminated. Grounds for attaching base boards or 
 picture moulds are readily placed before plastering. 
 
 Seven-Rib Hy-Rib. 
 
 One of Three Types Furnished. 
 
 Hy-Rib partitions are not intended 
 to support loads, but are used gen¬ 
 erally for subdividing the interior 
 into rooms. Hy-Rib provides the 
 best construction for all non-bearing 
 partitions and in fact for all interior 
 walls, where a framework of girders 
 and columns support the floors. 
 
 The completed Hy-Rib partition, 
 being less than 2 in. in thickness, 
 greatly increases the size of all rooms. 
 Consider the great saving in space as 
 compared with 6 in. to 8 in. required 
 for partitions of Terra Cotta Tile or 
 wood studding. By using the Hy- 
 Rib partitions throughout, the size 
 and cost of the school building can 
 be considerably reduced owing to the 
 great saving in space. 
 
 Hy-Rib partitions plastered with 
 cement mortar are absolutely fire¬ 
 proof, as has been demonstrated by 
 tests of the New York Building 
 Bureau and others. These partitions 
 have exceptional strength and rigid¬ 
 ity. The soundproof qualities of 
 solid monolithic Hy-Rib partitions 
 have been proven by actual tests as 
 well as by practical use in schools, 
 hotels, apartment houses, etc. 
 
 Complete specifications and details 
 for the construction of Hy-Rib parti¬ 
 tions are given in our Hy-Rib Hand 
 Book which will be forwarded on 
 
 Hy-Rib Partition, Trussed Concrete Building, Detroit, Mich. 
 Note grounds for base-board and chair-rail. 
 
 request. 
 
Trussed Concrete Steel Co., Detroit. 
 
 Hollow Walls or Partitions. 
 Rib Lath wired to Rib Studs. 
 
 A. A. Post. Architect. 
 
 Hy-Rib C eilings, Mount St. Joseph Academy, Buffalo, N. Y. 
 
 Hollow Partitions of Rib 
 Lath and Rib Studs 
 
 In some instances where many pipes 
 have to be carried through partitions, it 
 is desirable to have a hollow fireprool 
 construction. A combination of Rib 
 Studs with Rib Lath is ideal for this 
 purpose. Rib Studs, as will be noted, 
 consist of two vertical steel members rig¬ 
 idly connected by cross ties formed from 
 the same section of steel. The studs have 
 exceptional stiffness and at the same time 
 are open for the passage of pipes or con¬ 
 duits in any direction. This design also 
 affords an uninterrupted air space be¬ 
 tween the two plastered surfaces, adding 
 to the insulating qualities of the partition. 
 Rib Studs are readily attached to floors 
 and ceilings with Rib Stud extensions. 
 Rib Lath is wired directly to the studs 
 and plaster applied to the face of the lath 
 on both sides of the partition. Other 
 types of hollow partitions can, of course, 
 be adopted, such as using Rib Lath with 
 other types of studs of wood or steel. 
 
 Hy-Rib Ceilings For 
 School Buildings 
 
 Suspended ceilings are usually required 
 under roofs of schools and should always 
 be fireproof. For this purpose there is 
 nothing that can compare with the Hy- 
 Rib ceiling. Hy-Rib, as previously de¬ 
 scribed, comes in large sheets combining 
 lath and stiffening channels. In building 
 these suspended ceilings all that is nec¬ 
 essary is to provide lines of supports 
 spaced 4 ft. to 6 ft. apart, the Hy-Rib 
 being attached directly to them and plas¬ 
 tered on the under side to form the ceil¬ 
 ing. The great saving of this simple con¬ 
 struction as compared with lath and chan¬ 
 nels is apparent when one considers the 
 entire elimination of all expense of wiring 
 lath to separate channels. 
 
 For ceilings in semi-fireproof construc¬ 
 tion, Rib-Lath may be attached to the 
 underside of the wood joists and plas¬ 
 tered with cement. This produces good 
 fire resistance, which should materially re¬ 
 tard the spread of the flames. 
 
14 
 
 Modern School Construction. 
 
 Sectional Perspective of Counterbalanced 
 United Steel Sash. 
 
 United Steel Casement-Furnished in Many Special Designs 
 
 and Especially Adapted to School Buildings. 
 
 Steel Sash for Windows 
 of Schools 
 
 Authorities generally agree that the best lighting for 
 class rooms is from one side of the room only. This means 
 that the maximum lighting value should be secured from 
 the wall on that side and as little space as possible devoted 
 to obstructing members, such as pilasters, mullions and 
 muntin bars. Our modern solid steel sash is ideally suited 
 for this condition, as practically no light is obstructed by 
 the narrow mullions and muntins. The full area of the 
 window opening is available for lighting as contrasted with 
 the old style wood sash, requiring wide frames, wide mul¬ 
 lions and wide muntins. These steel sash are also fireproof 
 and permanent. 
 
 Even greater lighting value can be obtained from the 
 exterior by combining these steel sash with skeleton frame 
 construction of reinforced concrete, as previously described. 
 In this case the pilasters are reduced to minimum width and 
 the steel windows extend continuously between them and 
 up to the full height of the ceiling. By the use of these 
 modern methods of construction, the daylighting of class 
 rooms has been materially improved, increasing the comfort 
 of the children and saving their eyesight. 
 
Trussed Concrete Steel Co., Detroit. 
 
 I;') 
 
 Economy Casements of United Steel Sash. 
 A Type Well Adapted to School Buildings. 
 
 United Steel Sash For Windows 
 
 United Steel Sash is an improved type of solid steel sash with maximum daylighting power 
 and strength. The deep narrow members offer practically no obstruction to the light. These 
 steel members are united from solid steel sections under powerful presses without cutting away 
 the metal at the joints, insuring the greatest possible strength and rigidity. All sash are neatly 
 finished and are very attractive in appearance. 
 
 United Steel Sash is a complete line to meet all conditions of daylighting and ventilation. 
 Both pivoted and sliding ventilators can be provided. Ventilators may be pivoted just above 
 the center, near the top or the bottom, or also at top and bottom to revolve on a vertical 
 axis. Among vertical sliding sash, four types are provided, the counter-balanced sash in which 
 the upper sash is balanced against the lower; spring counterbalances, lead counterweights and 
 cast-iron counterweights. A complete line of casement sash of all types is also included. All 
 sash are furnished in a large variety of sizes and arrangements. 
 
 Our engineers would be glad to make suggestions as to the most suitable steel sash for 
 any particular condition. Our United Steel Sash Hand Book completely describes and illustrates 
 all types of sash, and is sent free to those interested in school building construction. 
 
16 
 
 Modern School Construction. 
 
 United Steel Casements, Indianapolis, Ind. 
 
 I’rice & McLananan, Arcnitccts 
 Hinged at Sides to Open Cut. 
 
 Economy Casements of United Steel Sash Designed 
 for School Buildings. 
 
 James Knox Taylor, Supervising Architect. 
 
 United Steel Sash with Sliding and Pivoted 
 Ventilators. 
 
 Bureau of Printing and Engraving, Wash¬ 
 ington, D. C. 
 
 
Trussed Concrete Steel Co., Detroit. 
 
 17 
 
 Waterproofings, Dampproofings and 
 Finishes for Schools. 
 
 A dry building is an essential requirement for the proper sanitation of schools. 
 The Trus-Con Laboratories manufacture a complete line of Waterproofings and Damp- 
 proofings, which insure absolute insulation from moisture in concrete or masonry con¬ 
 struction. For instance, the Trus-Con Waterproofing Paste Concentrated is mixed with 
 the water used in the concrete when the building is built or in a plaster coat on finished 
 buildings, and thus insures an impervious concrete structure. 
 
 Where the waterpressure from the soil is very slight, a basement can be made 
 absolutely dry by applying Trus-Con Foundation Coat to the outside walls. 
 
 Trus-Con Plaster Bond is a dampproofing product and is applied to the interior 
 of outside walls. While dampproofing is its first function, it serves an additional pur¬ 
 pose of forming a bond between the plaster and the wall, as it has a very tacky surface 
 to which plaster will tightly adhere, and thus often does away with furring and lathing. 
 
 Trus-Con Stonetex is a liquid, cement, dampproof coating for stucco, concrete, 
 stone, brick or other masonry surfaces. It is so formulated as to perfectly bond with the 
 concrete or other surfaces, and does not crack or peel off like paint. It is furnished in 
 several colors and in addition to dampproofing the structure, adds to its appearance. 
 
 During the past few years, there has been much agitation throughout the country 
 over the injurious effect of both lead and oil and cold water paints for the interior decor¬ 
 ating of public buildings. Lead and oil is recognized as a poisonous material and water 
 paints scale and peel off, the small particles floating through the air and acting as a germ 
 distributor. Trus-Con Asepticote is a special product formulated for the sanitary fin¬ 
 ishing of the interiors of schools, hospitals, churches, as well as private residences. It 
 dries with a soft dull finish, and can easily be washed with warm water and soap without 
 in any way affecting its surface. 
 
 Trus-Con Floor Enamel is an ideal, dustless, sanitary washable finish for cement 
 floors. When applied with a brush to the floors, it produces a tough, hard, elastic and 
 reasonably durable finish and affords an attractive tile-like enamel finish that insulates 
 and protects the floor from the direct traffic which would otherwise cause continual 
 dusting and granulation of the surface. 
 
 The Trus-Con Laboratories manufacture many other Waterproofings, Dampproof¬ 
 ings and Technical Paints. We will gladly furnish suggestions as to the best methods 
 for each individual condition, in either new or completed work. Our Trus-Con Hand 
 Book describing these products gives complete specifications, etc., and is sent upon re¬ 
 quest. 
 
18 
 
 Modern School Construction. 
 
 A Few of the Many Schools in Which Kahn System Has Been Used. 
 
 The few illustrations shown in this book give only a meager idea of the hundreds of schools 
 in which Kahn Building Products have been used. The following list is only a partial one, but 
 indicates our extensive experience along these lines. We are glad to place this experience at the 
 disposal of those interested in school buildings without obligating them in any way. Our repre¬ 
 sentatives are located in all principal cities and will give direct, personal co-operation at all times. 
 
 Xaiiics of schools printed in italics have I-'loors of Idorctyle Construction. 
 
 ARKANSAS 
 
 Helena—High School. 
 
 Little Rock—Deaf Mute School. 
 
 “ “ -—Little Rock College Dormitory. 
 
 Marion—School. 
 
 CALIFORNIA 
 
 Cerona—Claremont Library—Pomona College 
 C’hino—High School. 
 
 La Jolla—Bishop .School (Partitions). 
 
 Los Angeles— East Los Anyclcs High School. 
 “ “ —Polytechnic High School— 
 
 Addition. 
 
 San Diego—Bishop School. 
 
 San Francisco—Bryant Cosmopolitan School. 
 
 COLORADO 
 
 Boulder—Univ. of Cojo.—Memorial Bldg. 
 Colorado Sjirings—High School c'k’ ^Mechanical 
 i’ldg. Annex. 
 
 CONNECTICUT 
 
 Bridgeport—.School. 
 
 “ —Xichols Street School. 
 
 Hartford— High School. 
 
 New London—Harbor School. 
 
 Stamford—High School, 
 d'orrington— High School. 
 
 \\'ater])ury—School. 
 
 Watertown— Taft School. 
 
 Willi mantic— Nate hang School. 
 
 “ —iriitdhani Street School. 
 
 DISTRICT OF COLUMBIA 
 
 Washington—Georgetown .School. 
 
 “ —St. John Kantius College. 
 
 “ —-.Vrmy Barracks. 
 
 “ --War College. 
 
 “ •—(jonzago College. 
 
 ** —Howard Univ.—Science Hall. 
 
 “ —Holy C'ross .\cadeiny. 
 
 GEORGIA 
 
 Macon—Wesleyan College (lymnasium. 
 
 IDAHO 
 
 Genesee— Srh ool. 
 
 St. Anthonys- Idaho Training School. 
 
 ILLINOIS 
 
 .\rcola—School. 
 
 .\tlanta—School. 
 
 Champaign— 11igh .School. 
 
 —Univ. of Illinois—.\rmory. 
 Danville—High School. 
 
 1 >ecatnr---Higli School. 
 
 (Iranville— Marks School. 
 
 La Grange—Lyons High School, 
 
 1 .ockport—School. 
 
 Monmouth—Wallace Hall—.Monmouth College. 
 
 “ —High School. 
 
 Net)ga—School. 
 
 Peoria—(ireelcy .School. 
 
 “ —Douglas School. 
 
 (Juincy— Jackson School. 
 
 Robinson—School. 
 
 Rock Island Grant School. 
 
 “ —Manual Training School. 
 
 INDIANA 
 
 Attica—School. 
 
 Bedford—High School. 
 
 Pdoomington—Indiana Univ.- -Science Bldg. 
 P>road Ripple—High School. 
 l?rookville—School. 
 
 Culver—C'ulver Military Acatlemy. 
 
 Klkhart— School. 
 
 I'ort Wayne— .St. Lutheran School. 
 
 “-.Spy Run School. 
 
 Indianapolis—School No. 3 .\ddition. 
 
 “ —Manual High School. 
 
 ■* —Riverside Drive School. 
 
 Lafayette—Smith ITall-—Purdue Univ. 
 
 ()xford—School. 
 
 Rochester - -High School. 
 
 Rolling Prairie—Interlaken School. 
 
 Seymour—High .School. 
 
 . Terre Haute—Davis Park School. 
 
 IOWA 
 
 Ames--Chemistry Bldg.—State Bd. of Rduc. 
 Boone—Higli School. 
 
 Burlington—High School. 
 
 Cedar Falls—Iowa State Normal School. 
 Council Blutfs—Iowa School for the Deaf. 
 Davenport—Johnson School. 
 
 Des Moines— Park Are. School. 
 
 “ ■—Highland Park College. 
 
 " “ •—Phillips School. 
 
 ‘‘ ** —Iowa State College Buildings. 
 
 “ *■ —Ilubbell School. 
 
 ‘‘ “ •—Oakland School. 
 
 Ka.st Waterloo —Grade School. 
 
 Kstherville— High School. 
 
 I't. Dodge— School. 
 
 “ “ —Butler Sclioul. 
 
 Sioux City—Morningside College (lymnasium. 
 Spencer— School. 
 
 KANSAS 
 
 .\tchison—W'ashington .School. 
 
 Newton— High School. 
 
 Wichita—High School. 
 
 *■ —Carleton Sciiool. 
 
 KENTUCKY 
 
 Louisville— St. Joseph School. 
 
 " —\\’est C'hestnut School. 
 
 “ —Broadway School. 
 
 “ —St. Boniface School. 
 
 LOUISIANA 
 
 Baton Rouge —High School. 
 
 Natchitoches—State Normal School— 
 Dormitory. 
 
 New Orleans—Stanley Thomas Hall— 
 
 Tulane University. 
 
 “ —'fhomas Hall Maiaiuette 
 
 Hall—Loyola College. 
 
 MARYLAND 
 
 -Vnnapoli.s- U. .S. Naval Hospital. 
 
 —U. S. Naval Academy—Library, 
 Gymnasium and Academic Grou]). 
 Baltimore—Notre Dame Academy. 
 
 —Country School for Boys. 
 
 “ —Johns Hojikins Univ. Bldgs. 
 
 — Baltimore C'ity Schools. 
 
 “ —Mt. .\gnes College^—Laundry. 
 
 Catonsville—.St. C'harles College. 
 
 MASSACHUSETTS 
 
 P>oslon—Blackington .School. 
 
 Millbury— School. 
 
 North .\dams--.\mherst College—Natatoriurn. 
 Westfield —.dbner Gibbs School. 
 
 MICHIGAN 
 
 -\nn .\rbor—b’niversity of .Michigan. 
 
 Hill memorial. 
 
 “ ’* -Dental Bhlg. 
 
 “ “ —Engineering Bldg. 
 
 —Club House. 
 
 “ “ —Psychoiiathic Hos])ital. 
 
 “ “ —I’niversity Shops. 
 
 Battle Creek— No. lo School. 
 
 “ “ —High School. 
 
 Bay City—St. James .School. 
 
 Cadillac—School. 
 
 Corunna—School. 
 
 Craton—School. 
 
 Detroit —Detroit Home & Day Scluud. 
 
 " —St. John's School. 
 
 “ —Grand River Ave. Grade .School. 
 
 “ - Russell School .\ddition. 
 
 “ —Wm. Hillger School. 
 
 —-Marsey School. 
 
 “ -- Burton School. 
 
 “ -'Normal Training School. 
 
 Kscanaba—Kscanaba School—Powerlunise. 
 
 L'lint—3 Grade .Schools. 
 
 “ —.School for the Deaf. 
 
 Grand Rapids—Oakdale Scliool. 
 
 *“ — Ale.vaudcr St. School Add. 
 
 “ “ —East Leonard St. School Add. 
 
 " “ —Coldl)rook School. 
 
 “ ■“ • -Central High School. 
 
 " “ —Turner School. 
 
 “ “ —Union High School. 
 
 “ —Hall St. School. 
 
 “ “ —Sigs'bee School. 
 
 Greenville—Union School. 
 
 Holland —High School. 
 
 Hudson— School. 
 
 Ironwood—C’entral School. 
 
 Ishpeming—School. 
 
 Jackson—West Main .St. School. 
 
 Kalamazoo—East Ave. School. 
 
 “ —High School. 
 
 —Western State Normal .School, 
 i.ansing—Michigan Agricultural College Bldgs. 
 Ludington—High School. 
 
 Marciuette—High School. 
 
 —Northern State Normal School. 
 -Monroe—High School. 
 
 -Mt. Pleasant—Central State Normal .School. 
 Negaunee—Manual Training .School. 
 
 “ —High School. 
 
 Pontiac—High School. 
 
 Port Huron — High School. 
 
 Royal ()ak School. 
 
 MINNESOTA 
 
 C'hisholm—High School. 
 
 Fuldn a—School. 
 
 Rociiester—High Scliool. 
 
 .St. Joseph—St. Joseph Academp Col. Bldg. 
 St. Paul—Ramsey School. 
 
 —Murray School. 
 
 “ —.St. .\galha Aca<lemy. 
 
 St. Peter—.School. 
 
 MISSISSIPPI 
 
 I lattie.sburg~-.\Iiss. .State Normal .School. 
 X’icksburg— 1 lioce.san School. 
 
 MISSOURI 
 
 C olumbia—Univ'. of Mo. Agricultural School. 
 Gallatin—High School. 
 
 Kansas City—Rockhurst C'ollege. 
 
 Springfield- - Boyd School. 
 
 —Robberson School. 
 
 - High School. 
 
 St. Louis .Missouri School for Blind. 
 
 MONTANA 
 
 Billings —High School. 
 
 Helena—Sisters School. 
 
 NEBRASKA 
 
 Kearney—Kearney Military Academy. 
 
 Lincoln —Lincoln Business College. 
 
 ' —Lhiiv. of Nebr. Tn<histrial Plant. 
 
 NEVADA 
 
 Reno—High .School (Lath) 
 
 —“Mt. Rose .School (Lath) 
 
 —Orvis Ring School (Lath) 
 
Trussed Concrete Steel Co., Detroit. 
 
 H) 
 
 NEW JERSEY 
 
 Atlantic City-—School (Mass ^ AtlanticAves.) 
 liloomtield—High School. 
 
 Caklwe 11— Hi(jh School. 
 
 Hoboken—High School. 
 
 jer.sey City—Technical High .School. 
 
 Kingsland—High School. 
 
 Montclair—School. 
 
 Newark Lincoln School. 
 
 \\‘est Orange— School. 
 
 NEW MEXICO 
 
 t'lovis—School. 
 
 NEW YORK 
 
 .\lbany—State Educational Lldg. 
 
 Dinghamton—I.aurel Ave. School. 
 
 •* —Union High School, 
 
 ilriar Cliff Manor—Mrs. Dow’s School. 
 Brooklyn—\’isitation School. 
 
 Buffalo—Broadway School No. 4L 
 •• —St. Adelbert School. 
 
 C'aldwcll —High School. 
 
 Dunkirk—High School Addition. 
 
 (ylens Falls—ITiion High School. 
 
 (Ireat Neck, L. I .—IHuh School. 
 
 Ilornell—School. 
 
 Ithaca—Cornell Univ. Training I louse. 
 Kenmore—School. 
 
 LeRoy—High School. 
 
 Mt. X’enion —High School. 
 
 New York—Union Tlieo. Seminary. 
 
 “ —Stadium, C'ity Ckdlege of New 
 
 York. 
 
 Peekskill—Drum Hill School. 
 
 Rochester —School No. 3. 
 
 *“ —St. Andrews School. 
 
 Rome —Thoiuas St. School. 
 
 Southampton, ].. 1.— School. 
 
 Syracuse —Bellevue Heights School. 
 
 “ —.Syracuse University Bldgs. 
 
 —Hall of C'hemistry. 
 
 --Public Disiiensary. 
 
 —Carnegie I.ibrary. 
 
 — Machinery Hall. 
 
 — Hall of Natural History. 
 
 —Stadium. 
 
 —Gymnasium. * ^ ^ 
 
 Troy- Kmma Williard Seminary. 
 \’alhalla--Jennie Clarkson School.* ,1, 
 
 W’averly —High School. 
 
 W’est Point—U. S. Military .\cademy—2(l 
 r>uildings. 
 
 OHIO 
 
 —Memorial Bldg.. Ohio Northern 
 University. 
 
 .\kron—Robison Grade School. 
 
 “ —North Hill School. 
 
 —Portage Path School. 
 
 “ —South High School. 
 
 •* —Lincoln School. 
 
 —High School. 
 
 “ —Bryan School .\nnex. 
 
 “ —Frank H. ^lason School. 
 
 —Lane .\ve. School Annex. 
 
 Alliance—High School. 
 
 .\thens—High School. 
 
 •• —'fraining School— ()hio L niversity. 
 
 Barberton—-High School, 
 liowling (ireen —State .\oruHil School. 
 
 Iluchtel—School. 
 
 Bucyrus—School. 
 
 Canton—St. Maria College. 
 
 Carroll—11igh School. 
 
 C'ar roll ton— School. 
 
 Cleveland—Lincoln High School. 
 
 •• ,—St. Michael’s School. 
 
 “ •—West High School. 
 
 —St. Procops School. 
 
 Columbus--Forestry Bldg., Ohio State Univ. 
 
 Art Bldg., St. Mary’s of tiie 
 Springs Academy. 
 
 Coshocton—High School. 
 
 Cuyahoga I'alls—School. 
 
 Dayton—Trinity School. 
 
 Delphos—Jefferson School. 
 
 East Liverpool—High School. 
 
 East Palestine—School. 
 
 Elvria —Clark St. School. 
 
 Euclid —Shore High School. 
 
 —Euclid High School. 
 
 Fremont—School. 
 
 I'ulton—Lincoln High Addition. 
 
 Hamilton—Lindenwald School, 
 l.ima— High School. 
 
 Lorain—Groveland School. 
 
 McArthur—Sclun)l. 
 
 .Manslield--1 ledges Ave. School. 
 
 Marion—-/\’a;7 St. School. 
 
 Martinsville—11 igh School. 
 
 Marysville— School. 
 
 .Mentor— School. 
 
 Millersburg—School. 
 
 .M orrow- School. 
 
 Newark Grant St. School. 
 
 —South Fifth St. School. 
 
 “ —Stevens St. School. 
 
 New Knoxville— High School. 
 
 New Iffiiladelphia— High School. 
 
 Niles—Bentley .\ve. School. 
 
 —Warren ,\ve. School. 
 
 ()reville—School. 
 
 Oxford—Oxford Univ. Bhlg, 
 
 Pi(iua— School. 
 
 Port Mdlliams— School. 
 
 St. Bernard—lli^h School. 
 
 Sandusky—High Scliool. 
 
 Spriiiglield—High Scliool. 
 
 ■—Warder Park School. 
 
 —High School Adtlition. 
 
 \ an Wert—Higli School, 
 
 Washington C'. H.—High School. 
 
 Youngstown—Hillman St. School. 
 
 — St. Patrick’s School. 
 
 —South High School. 
 
 South Solon— School. 
 
 OKLAHOMA 
 
 .\da—School. 
 
 1 )ewey—11 igh School. 
 
 Enid—High Scliool. 
 l.awton—High vSchool. 
 
 .Muskogee—M'ard .School. 
 
 —High Scliool. 
 
 (Iklahoma City—Putnam i ligh School. 
 
 Pond Creek—School. 
 
 Wulburtoii—School of Mines. 
 
 OREGON 
 
 Kenton—School. 
 
 Portland— Jamesmore School. 
 
 —Aiuszcorth School. 
 
 — Mt. Tabor School. 
 
 - Kichuiond School. 
 
 •—.Sclhvood School. 
 
 ‘‘ —Hoffman School. 
 
 — North Pacific Dental College. 
 
 — Rose City Ihark School. 
 
 —Failing School. 
 
 —M’ashington High School 
 (lymnasium. 
 
 —Reed !usfitute—Hall of Arts 
 and Science and Dormitory, 
 Umatilla— School. 
 
 PENNSYLVANIA 
 
 -Mlegheiu—]2tli W'ard School. 
 
 “ —]■'. St. School. 
 
 •—h'ineview School. 
 
 .\spin wall—School. 
 
 I )oylestown--I ligh School, 
 j uniatta—School. 
 
 Lancaster—7th Ward School 
 “ —.Sth Ward School. 
 
 Morganza—Pa. Reform School. 
 
 ()vei brook—1 )ormitory-Phila. Theo. Seminary 
 of St. Charles P>oromec 
 Philadelphia— Parochial School — St. Peter 
 and .S't. Paul Cathedral. 
 
 “ —Univ. Museum Addition. 
 
 “ —Gratz College. 
 
 “ —Bayard Taylor School. 
 
 — Library Division—School of P. 
 E. Church. 
 
 — Primary School (5th & Nedru). 
 
 - Brimary School (22nd & Ritner ). 
 William Cullen Bryant School. 
 Alice Cary Reed .School. 
 
 — West Philadeli)hia High School. 
 —Academy of Science. 
 
 — Thomas W. Evans .\Jnsenm 
 and Dental Institute. 
 
 - llenryHoward Furness School. 
 
 - John Greenleaf W'hittier School. 
 — Wm. V. Harrity School. 
 
 Pittsburg—2 School I i ouses. 
 
 “ —Brookline School. 
 
 Reading—Douglaj? Weiser Sts. School. 
 
 Williamsport—High School. 
 
 RHODE ISLAND 
 
 Central J'alls—Notre Dame School. 
 Proviilence—R. I. School of Design. 
 
 SOUTH CAROLINA 
 
 IHorence—S. C. Industrial School. 
 
 Greenville- -Chicora College. 
 
 SOUTH DAKOTA 
 
 .St. J'rancis—School for St. N’incent’s .Mission 
 
 TENNESSEE 
 
 Johnsun ('ity— High School. 
 
 .Memphis— Evergreen St. School. 
 
 “ —I'leece Station School. 
 
 “ •—Tennessee State Normal. 
 
 “ —Snowden School. 
 
 “ —High School. 
 
 “ Lathram St. School. 
 
 .Sewaunee Univ. of the South Science Bldg. 
 
 TEXAS 
 
 Athens—High School. 
 
 Dallas-—Roof and Dome of Dallas' Hall— 
 
 S. M. Univ. 
 
 I )enison— 11 igh School. 
 
 Fort Woi th—High School. 
 
 “ - loth Ward School. 
 
 Henderson— School. 
 
 II illsboro— 11 igh School. 
 
 1Touston—Crockett School. 
 
 ** —High School. 
 
 ** —Rusk School. 
 
 “ —Rice Institute. 
 
 North I'ort W'orth—School. 
 
 .San Antonio— School No. In .Addition. 
 
 “ “ —Prosi)ect Hill High School. 
 
 San Marcus— Manual .Arts Bldg. 
 
 Segvin— High School. 
 
 Sherman— High School. 
 
 " —Science Hall—Austin College. 
 
 Texarkana— Rose Pfill IVard .School. 
 
 W'aco—High School. 
 
 UTAH 
 
 r.ogan—Agricultural College. 
 
 Price— Carbon County High .School. 
 
 Salt Lake City—Technical High Scliotd. 
 
 “ “ “ —Hawthorne School. 
 
 “ “ —^Jefferson .'“chool. 
 
 “ “ “ —Ninth .\ve. School. 
 
 VIRGINIA 
 
 Danville—Ri)anake Institute. 
 
 Newport News ’—John W. Daniels .School. 
 Richmond—High School. 
 
 Rosslyn—Holy Cross Academy. 
 
 WASHINGTON 
 
 Cheney—School. 
 
 Everett —} 'ocational .School. 
 
 Pullman —Washington State College Bldgs. 
 Richland—School. 
 
 .Spokane —Bouh -card J^ark School. 
 
 " —Whittier School. 
 
 " —Bryant School. 
 
 “ —Marcus U'hitman School. 
 
 'Tacoma—.SY. Leo's School. 
 
 WEST VIRGINIA 
 
 t'liarleston—(larnett School. 
 Elmgrovc—Manual Training School. 
 Fairmont —.Sch ool. 
 
 WISCONSIN 
 
 Kenosha—'Third Ward School. 
 
 .Milwaukee- Deaf and Dumb .School. 
 
 " —Riverside High School. 
 
 Boys High School—German 
 English Academy. 
 
 Superior—lligh School. 
 
 W’auwatosa — I )ormitory—.\gricultural School. 
 
Modern School Construction. 
 
 
 cr; 5 arm: atm S mra aat 
 
 -r .. ' 
 
 H 
 
 - --— 3 -- ' "C T 
 
 1 
 
 i 1, 
 
 Buildings for U. S. Naval Academy, Annapolis, Md. 
 Ten Kahn System Buildings in this Group. 
 
 Ernest Flagg, Architect. 
 
Trussed Concrete Steel Co., Detroit. 
 
 21 
 
 Cram, Goodhue & Ferguson, Architects. 
 
 Cadet Barracks, U. S. Military Academy, West Point, N. Y. 
 
 Twenty Kahn System Buildings in this Group. 
 
 t i 1 (.( ( ( 
 
 innn 
 
 War College, U. S. Army, Washington, D. C. 
 Kahn System Reinforced Concrete Used Throughout. 
 
 McKim. Mead & Wliite, Architects. 
 
 
22 
 
 Modern School Construction. 
 
 Albert Kalin, Architect: l■ir^est W’ilhy. Assoc. 
 
 Hill Memorial Hall, University of Michigan, Ann Arbor, Mich. 
 
 Built Kahn System Reinforced Concrete, including Hy-Rib Ceiling in Auditorium. 
 
 Donaldson .Meier, .\rcliitect-. 
 
 Dental College, University of Michigan, Ann Arbor, Mich. 
 
 Kahn System Reinforced Concrete Used Throughout. 
 
Trussed Concrete Steel Co., Detroit. 
 
 •211 
 
 Andry .S: I’endernagel, Arcliitect'-. 
 
 Stanley Thomas Hall, Tulane University, New Orleans, La. 
 
 Built Kahn System Reinforced Concrete. 
 
 J. X. liradtord. Architect. 
 
 Archaeological and Historical Museum, Ohio State University, Columbus, O. 
 
 Built Kahn System Reinforced Concrete. Windows of Uni ted Steel Sash and Ceilings of Hy-Rib. 
 
24 
 
 Modern School Construction. 
 
 Revels ft Jlallenbeck, Architects. 
 
 Lyman Hall of Natural History and Gymnasium, Syracuse University, Syracuse, N. Y. 
 
 Built Kah n System Reinforced Concrete Throughout. 
 
Trussed Concrete Steel Co., Detroit. 
 
 '2o 
 
 Revels & Uallenbeck, Architects. 
 
 Bowne Hall of Chemistry, Syracuse University, Syracuse, N. Y. 
 
 Kahn System Reinforced Concrete Used in Many Buildings of this University. 
 
Modern School Construction. 
 
 2(5 
 
 Jil 
 
 Cram. (Soodlnie & Fergjison, Architects. 
 
 Administration Building, Rice Institute, Houston, Tex. 
 
 Built Kahn System Reinforced Concrete. 
 
 Debuys, Clutrchill & Latiouisse. .\rclntects. 
 
 Thomas Hall and Marquette Hall, Loyolla College, New Orleans, La. 
 
 Built Kahn System Reinforced Concrete. 
 
 James Knox Taylor, Supervising .\rclntect. 
 
 This 
 
 Bureau of Printing and Engraving, Washington, D. C. 
 monumental building is equipped throughout with United Steel Sash and is constructed of the Kahn Sys 
 tern Reinforced Concrete. The vertical sliding ventilators are operated with lead counterweights. 
 
Trussed Concrete Steel Co., Detroit. 
 
 27 
 
 Doyle ^ Patterson. Architects. 
 
 Reed institute, Portland, Ore., showing Dormitory Building, Hall of Arts and Science, and Lounging Room. 
 Kahn System Floretyle Construction used throughout, including Flat Ceilings up to 3 2 ft. clear span. 
 
28 
 
 Modern School Construction 
 
 Stoughton & Stoughton, Architects. 
 
 East Hall, Canton Christian College, Canton, China. 
 
 Built Kahn System Reinforced Concrete. 
 
 Gonzago College, Washington, D. C. 
 
 Floors of 3 7 ft. Span, built Kahn System Reinforced Concrete 
 
 Frank G. Pierson, .\rchiteci. 
 
Trussed Concrete Steel Co., Detroit 
 
 29 
 
 Built 
 
 High School, 
 Kahn System 
 
 Richmond, Va. 
 
 Reinforced Concrete 
 
 C. K. ISryant. Architect. 
 
 Howell & Thomas, .\rcliitects. 
 
 Art Building, St. Marys of the Springs Academy, Columbus, Ohio, 
 Built Kahn System Reinforced Concrete. 
 
: 5 () 
 
 Modern School Construction. 
 
 Central High School, Grand Rapids, Mich. 
 
 Kahn System Reinforced Concrete Used Throughout. 
 
 Robinson & Campan, .\rehitects.. 
 
 Union High School, Grand Rapids, Mich. 
 
 Kahn System Reinforced Concrete Used Throughout. 
 
 Robinson & Canipau, .\rcliitects. 
 
Trussed Concrete Steel Co., Detroit 
 
 HI 
 
 High School, Broad Ripple, Ind. 
 
 Built Kahn System Reinforced Concrete. 
 
 TT. r.. Bass & Co.. Architects. 
 
 
 
 11 
 
 
 1— ^ 
 
 
 IT . . _ 
 
 ± 1 |ij, 
 
 21! 
 11 
 
 mW- 
 
 i.ff 
 
 
 
 
 
 
 1 :iS 
 
 
 r I #’ ■ ■ 
 
 
 ■ 'MQ|3 
 
 
 aw 1 
 
 
 
 E. II. Potter, Architect. 
 
 Union High School, Glens Falls, M. Y. 
 
 Kahn System Reinforced Hollow Tile Construction Used Throughout. 
 
Modern School Construction. 
 
 
 Cannon & Fetzer, Architects. 
 
 Technical High School, Salt Lake City, Utah. 
 
 Kahn System Reinforced Concrete Used Throughout. 
 
 R. K. .\. Kletting, .Architect. 
 
 Jefferson School, Salt Lake City, Utah. 
 
 Built Kahn System Reinforced Concrete. 
 
 A. Horace Cook. .Architect. 
 
 West Philadelphia High School, Philadelphia, Pa. 
 
 Kahn System Reinforced Concrete Used Throughout. 
 
Trussed Concrete Steel Co., Detroit. 
 
 
 B. C. AIsu]) S; Co., .\i'cliitccts. 
 
 Main Building, Tennessee State Normal School, Memphis, Tenn. 
 
 Kahn System Reinforced Concrete Used Throughout. 
 
 Whitehouse & F'ouilhoux. Architects. 
 
 Failing School, Portland, Ore. 
 
 Kahn System Reinforced Concrete Used Throughout. 
 
 Dallas & Hedges, .\rchitects. 
 
 Hawthorne School, Salt Lake City, Utah. 
 
 Built Kahn System Reinforced Concrete. 
 
Modern School Construction 
 
 
 Riverside School, Indianapolis, Ind. 
 
 Kahn System Reinforced Concrete Used Throughout. 
 
 Brubaker S: Stern, .\rcliitects. 
 
 Marcy School, Detroit, Mich. 
 
 Built Kahn System Reinforced Concrete. 
 
 Malcomsoii &• lligginbotliam, .\rcliitects. 
 
Trussed Concrete Steel Co., Detroit. 
 
 
 Hillger School, Detroit, Mich. 
 
 Built Kahn System Reinforced Concrete. 
 
 .\[alcom.son & nigginl)Othani, Arcliitects. 
 
 Burton School, Detroit, Mich. 
 
 Built Kahn System Reinforced Concrete. 
 
 >[alcomson & Iligginliotliam, .\rcliitects. 
 
Modern School Construction. 
 
 :}6 
 
 Hill School, Memphis, Tenn. 
 
 Kahn System Reinforced Concrete Used Throughout. 
 
 Tones & I'urbn'n.srer, Arcliitects. 
 
 O. Z. Cervine, Arcliitect. 
 
 Manual Training School, Rock Island, Ill. 
 
 The large windows, assuring perfect daylighting to interiors, are made possible by use of United Steel Sash. 
 
Trussed Concrete Steel Co., Detroit 
 
 
 Snowden School, Memphis, Tenn. 
 
 Kahn System Reinforced Concrete Used Throughout. 
 
 Jones & Fnrbringer, Architects. 
 
 Fleece Station School, Memphis, Tenn. 
 
 Kahn System Reinforced Concrete Used Throughout. 
 
 Jones & Fnrbringer, Architects. 
 
is 
 
 Modern School Construction 
 
 
 
 MTfn 
 
 
 
 prill ^ 
 
 
 
 IHlIHrl 
 
 ml 
 
 Marcus Whitman School, Spokane, Wash. 
 
 Kahn Syst em tloretyle Construction Used Throughout. See test page 
 
 K. t'. .Swcatt. .Vrcliitec't. 
 
 7. 
 
 Rose City Park School, Portland, Ore. 
 Built Kah n System Reinforced Concrete. 
 
 jacolihcrKcr, Arcliilicl. 
 
Trussed Concrete Steel Co., Detroit 
 
 
 Thomas St. School, Rome, N. Y. 
 
 Kahn System Floretyle Construction Used Throughout. 
 
 I'. W. Kirkland, .\rcliitect. 
 
 Coldbrook School, Grand Rapids, Mich. 
 
 Kahn System Reinforced Concrete Used Throughout. 
 
 \\illiam''p|i \ Cinw. Arcliilt-rls. 
 
40 
 
 Modern School Construction. 
 
 Rusk School, Houston, Tex. 
 
 Kahn System Floretyle Construction Used Throughout. 
 
 O. J. Lorelin, Architect. 
 
 Horace Cook, Architect. 
 
 Alice Carey Reed School, 88th St. and Tinicum Ave., Philadelphia, Pa. 
 
 Built Kahn System Reinforced Concrete.