LIST OF DIAGRAMS 



FIG. PACE 



Sketch of Sewer Plan, Showing Lettering, etc 4 27 



Rainfall Intensity in New England States 5 40 



" " Rochester 6 42 



" " Boston, etc 7 43 



" " Baltimore, etc 8 44 



" " Washington, etc 9 45 



" " Philadelphia 10 46 



" " Savannah '. n 47 



Various Rainfall Curves 12 49 



" Run-off Curves 13 68 



Relation between Density of Population and Percentage of Rainfall 



Reaching Sewers 14 75 



Run-off at New Orleans 15 89 



Population Curve for Chicago 17 94 



11 " " Baltimore 18 94 



"Boston 19 95 



" " " Brockton , 20 97 



Variation of Rate of Growth with Size of City 21 99 



,...22 101 



Population Curve for Ithaca 23 103 



Water-consumption and Sewage-flow at Atlantic City 24 106 



" Des Moines 25 108 



Records of Water-meters in Manhattan 26 114 



Water-consumption and Water Waste, in New York 27 120 



Water-consumption Curves for New York and Fall River 28 121 



Increase of per Cap. Consumption with Growth of City 29 122 



Effect of Meters on Water-consumption 30 1 24 



Reduction in Fall River through Use of Meters 31 125 



' ' Cleveland through Use of Meters 32 1 25 



Water-consumption in Binghamton 33 127 



from Hemlock Lake 34 128 



in Chicago and Fall River 35 129 



in Atlantic City 36 131 



Sewage-flow, Canton, O 37 132 



Schenectady, N. Y 38 133 



Weston Hospital, W. Va 39 '133 



Omaha, Neb 40 134 



xi 



