24 48 72 96 120 144 168 192 216 

 29 30 3\Jan.\ 2 3 4- 50 



DIAGRAM IV. Curves of Table S, showing total number of bacteria at 1012 

 and 18 20 C. in December. Abscissae hours of incubation ; ordinates = 

 numbers of bacteria per 1 c.c. 



