43^ Report S.A.A. Advancement of Science. 



List of Figures. 



Fig. I. — Showing in diagrammatic form some of the figures given- 

 in Table I. 



Fig. 2. — Showing figures given in Table II. 



Fig. 3. — Showing from Pumping returns at Atalanta that a large 

 increase of water was lifted with a small increase of coal 

 burnt. 



Fig. 4. — Showing for London from 1886- 1900 the population sup- 

 plied, the w^ater delivered, and the annual cost of main- 

 tenance and management. Attention is directed to the 

 high amount of water supplied in 1895 due to the 

 exceptional quantity used during a period of severe frost. 

 The pumping expenses for the year do not rise in the 

 same proportion, show^ing that pumping expenses are not • 

 necessarily in proportion to the quantity of water lifted. 



Fig. 5. — Showing in gallons per head per diem the water consumed 

 in trade, municipal, domestic purposes and Avaste. Where 

 there is a water carriage se\vage system a certain amount 

 of " domestic " must be allocated to " sanitary," leaving 

 only a small proportion of the total consumption under 

 the control of the consumer. 



Fig. 6. — Showing water consumption before and after inspection for 

 detection of waste water. 



Fig. 7. — Showing water " used " as area above night line and water 

 " wasted " as area below night line. 



