Report on the Bacteriology of Water. 



4000 



3000 



2000 



1000 



/at 



L 



PI. 



I a-k a 



15-18 C. 



-/5V, 



cr 



a- ft /s-/oc 



a,t 



e-/5 



.A' 



C 1 



-15 C. 



48 



7?. 



96 



DIAGRAM I. Curves of Table Q, showing total bacteria at 1215 C. and 

 15 18 C. in August. Abscissae = hours of incubation of plates; ordinates = 

 numbers of colonies per 1 c.c. 



