MICROORGANISMS IN WATER 



271 



El 



,11 / X 



Fig. 113. 



/ 



— ■+ 



&- 



''..^•i..E]....A 



Ttttj 



^ « s 



Fig. 114. 



Fig. 1 15. 

 Figs. 113,114, and 1 15. — In each figure — plan above — section through A'B below. 

 S = SoU; B = Impervious subsoil or strata, i, House; 2, well; 3, outhouse; 4, 

 piggery; S, stables; 6, stable yard; 7, hen house; 8, sheep stable. Arrow heads 

 indicate direction Of water flow. (Original.) 



