INDEX 



Sewerage system, Capacity 

 required for separate, 384 

 system, Capacity required 



for storm-water, 383 

 system, Combined, 382 

 Sewers, Brick, 391 

 Concrete, 391 

 Cross-section of egg-shaped, 



389 



Table of velocity and dis- 

 charge for circular pipe, 

 386 



Table of velocity and dis- 

 charge of egg-shaped, 388 

 Sextant, 127 

 Shear, Definition of external, 



288 

 of beams, Formulas for 



maximum, 291 

 of rivets, 281 

 Shearing and bearing values 



of rivets, Table of, 282 

 stress, 275 



Shrinkage of earthwork, 216 

 Sidereal time, 141 

 Side-hill work, 213 



-hill work, Eccentricity in, 



216 

 Sidewalks, Lateral slopes of, 



411 



Simple beam, 287 

 stress, 275 



stress, Formula for, 280 

 Simpson's rule for finding 



area, 13 



Siphon, The, 376 

 Slag cement, 307 

 Slope of repose, 271 



ratio in cuts and fills, 192 

 -stake equation, 197 

 -stake fractions, 198 

 stakes, 196 



Solar observation, Determi- 

 nation of latitude by, 151 

 observation, Determination 



of meridian by, 150 

 time, Mean, 141 

 Solids.Center of gravity of ,265 

 Sounding poles, 123 

 Soundings, 123 

 South pole of celestial sphere, 

 139 



Specific gravity, Definition of, 



346 



Table of, 347 

 Sphere, 16 



Axis of celestial, 139 

 Celestial, 138 

 Poles of celestial, 139 

 Spikes per mile of track. 



Table of railroad, 237 

 Spiral, Angle of deflection 



of, 174 



Angle of deviation of, 174 

 Coordinates of, 175 

 Definition of transition, 172 

 Length of, 17 

 length, Table of minimum, 



191 



offset, 176 

 Point of, 172 

 Selection of, 191 

 Tables of transition, 180 



to 189 



Tangent distance of transi- 

 tion, 178 



Unit degree of curve of, 172 

 Spirit leveling, 74 



leveling, Degree of ac- 

 curacy required in, 89 

 Spread foundations, '.Mi) 

 foundations, Formula for 



steel, 336 



foundations, Masonry, 335 

 Spur in railroad location, 



Vertical curve at, 230 

 Square measure, 2 



measure, Surveyor's, 2 

 Stability of retaining walls, 



338 

 Stadia constant, 94 



method of topographic sur- 

 veying, 116 



reduction tables, 99 to 106 

 survey, Field notes for, 97, 



98 

 surveying, Inclined sights 



in, 96 



Stakes, Slope, 196 

 Standard orifice, Flow of 



water through, .'i">- 

 time, 143 



time into local, To change, 

 143 



