SEWAGE DISPOSAL 



449 



Bacteria can live and grow in such minute cracks that 

 to use dishes washed in impure water is about as dangerous 



as to drink the water. All public towels 



and drinking cups should be abolished. 

 Experiments have shown that even drinking 

 fountains unless most carefully constructed 

 are liable to retain in the pipes germs left 

 by other users. The use of the individual 

 cup is the one safe method for drinking. 



o TV- i rr<i_ j- i PAPER DRINKING 



Sewage Disposal. 1 he proper disposal Q UP 



of human waste is a vital problem. Ex- 

 posure to wind and flies allows the germs in it to be spread 

 about. The waste must therefore be disposed of in some 

 way or disinfected. On the farm or in small towns where 



Courtesy of Department of Public Works, Columbus, Ohio 

 SEWAGE DISPOSAL BED, SOLIDS 



