— 256 — 
Shelton Bar Iron Co. , 20. 
Shipping bill, 215. 
Shims, 56, 57, 59, 60, 77. 
Shoe connection, 54, 55, 140, 170, 206. 
Shoe plates, 54, 73, 141, 171, 206. 
Shock, percentages of increase for, 64. 
Side bracing, 6, 53, 66. 
Sizes of connecting plates, 204. 
Sizes of floor beams. 
Sizes of liip verticals. 
Sizes of lacing bars. 
Sizes of lateral rods. 
Sizes of lateral struts. 
Sizes of lattice bars, 
Sizes of pillars for falsework. 
Sizes of pins, 206, 207. 
Sizes of portal rods. 
Sizes of portal struts, 
Sizes of rollers, 
Sizes of sections, limiting, 66. 
Sizes of stay plates, 
& XXIII. 
Sizes of track stringers. 
Sizes of vibration rods. 
Skew bridges, 9. 
Sleeve-nuts, 76. 
Sliding expansion joint, 55. 
Sliding of pedestal, 55. 
Snow plough, 5 q. 
Soci^t^ Cockerill, 25. 
Spacing, rivet, 74, ia8, 147, 190. 
Spacing, stiffeners, 74. 
Specifications, 63. 
Spikes, 59, 193. 
Splices in webs and flanges, 57, 75. 
Splice plates, 54, 72, 140, 168, 169, 170, 204. 
Square bars, sections of, 18, 19, 22, 44. 
Square bars, weights of, 44. 
Square nuts, table of, 1 94. 
Standard engine, 63, 81. 
Stay plates, 72, 139, 168, 203. Tables XXII 
& XXIII. 
Steel pins, 129, 132, 206. 
Stiffened bottom chords, 52, 116, 158, 189. 
Stiffened hip verticals, 71. 
Stiffening frames, 51, 75, 123, ao8. 
Stresses in batter braces, 89, 90, 93, 97, 108, 
109. Tables III <fe IV. 
Stresses in beam hangers, 126. 
Stresses in bottom chords, 89 ， 90, 93, 95,96, 
98, 100, 102, 103, 156, 157. Tables III, 
IV &V. 
Stresses in brackets, 109. 
Stresses in built beams, 127. 
Stresses in chords, 88, 89, 90, 93, 95, 96, 97 , 9^ 
100, 102, 103, 156. Tables III, IV & 
Stresses in counters, 89, 90, 93, 95, 96, 99- 
Tables III Sc IV. 
Stresses in double intersection trasses, 9 ん 
Table IV. 
Stresses in end lower lateral struts, 69, 1 〇 5 ， 
1 6 1. Table Y. 
Stresses in falsework, 226. 
Stresses in hip verticals, 89, 90, 94, 97. 
Stresses in intermediate struts 107, no, 162. 
Stresses in lateral systems, 104, 160. Table V* 
Stresses in lower lateral rods, 10 4, 105, 160# 
161. Table V. 
Stresses in lower lateral struts, 105, 160, 16 1. 
Tnblo V. 
Stresses in main diagonals, 89, 90, 93, 95, 9 ん 
97, 99, 156. Tables III & IY. 
Stresses in pins, 1 30. 
Stresses in portal rods, 108, 162. 
Stresses in portal struts, 108, 109, 163. 
Stresses iu single intersection trusses, 93 , 94» 
95, 9 も 99 , 156. Table III. 
Stresses in sway bracing, 106, no, 162. 
Stresses in top chords, 88, 90, 93, 95, 97. 9 ^» 
100, 103, 156. Tables III, IV & V. 
Stresses in track stringers, 126. 
Stresses in trusses, 86. Tables III & 
Stresses in upper lateral rods, 10 4, 160, Table 
y. 
Stresses in upper lateral struts, 105, 109, 
Table V. 
Stresses in upper lateral systems, 104, '60, 
Table V. 
Stresses in vertical sway bracing, 106, 1 \ 〇 » 1 い • 
Stresses in vibration rods, 107, 110, 162. 
Stringer connection to floor beam, 57, 75, 12 シ 
Stringers, 56, 57, 74, 122, 126. 
Structure, test of, 80. 
Styles of bridges, 51, 66. 
Superiority of American over European bri^n eS, 
2 ， 3, 4 ， 5. 
Sway bracing, 56, 67 , 10 6, no. 
Symbols, 200. 
System of marking iron, 218. 
Table of cost of erecting spans, 15-2. 
Table of cost of spans, 153. 
Table of data, 91, 153, 155. 
Table of hexagonal nuts, 195. 
Table XII. 
Table YII. 
Table XXI. 
Table XIII. 
Table XIII. 
Table XX. 
Table XXIV. 
Table XIV. 
Table XIII. 
Table XIII. 
Table XVII. 
Tables XXII 
Table Xl. 
Table XIII. 
