248 INDEX 



PAGE 



Velocity at different depths in circular sewer 210 



required for suspension by experiment 160 



Velocity, minimum, required in sewers 163 



Ventilation continuous through system 204 



of sewers, separate vs. combined 5,7 



Waring, Col. G. E 2 



Washington, rainfall at 45 



Waste from pipes, water 1 1 7, 1 20 



Water-consumption at Des Moines, etc 107 



causes affecting amount of 109, 122 



compared with sewage flow 105 



in Chicago and Fall River 113 



in Manhattan 123 



Water meters, effect on consumption 1 23 



Water-pipe, location 16 



Water waste in Philadelphia 107 



Weather Bureau, excessive rains 34 



Weisbach and Kutter formulae 186 



Weston Hospital, sewer gaging 135 



Williams, Benezette 3 



Williams and Hazen formula 1 73 



Winona, amount of ground-water 144 



Zone system of laying out 198 



