AMOUNT OF SEWAGE PER CAPITA 



135 



added (35,500 gallons), and the maximum found to be 59 per 

 cent greater than the average flow. 



Fig. 39 shows the results of the gaging of the sewer at the 

 Insane Hospital at Weston, Va., made under the direction 

 of Mr. Rafter and quoted in Rafter and Baker's " Sewage 

 Disposal." The maximum here is found to be 22 per cent 

 greater than the average. 



Fig. 40 is a diagram taken from the paper of Mr. Grover 

 already alluded to. 



Fig. 41 gives a diagram of the sewage-pumping records at 



FIG. 42. 



Chautauqua, N. Y., on the days indicated.* Here the average 

 for the four days is 5700 gallons, the average maximum flow 

 being 50 per cent more than the average. 



In Fig. 40 the effect of constructing poor pipe-lines is plainly 

 seen from the large flow at the times of day when there should 

 be little or no flow in the sewers. While the maximum flow is 

 only 56 per cent greater in amount than the average flow, yet 

 it is 117 per cent greater than the average if the flow at 3 A.M. 



* Ibid., Vol. XXXI, p. 87. 



