Trots. Percy Frauklancl and Marshall Ward. 



6000 



5000 



4000 



3000 



2000 



1000 





_z 



56 



'48 



58 



46 



84 



81 



63 

 85 



76 



60 



79 



O 24 48 72 96 120 144 



DIAGRAM II. Curves of Table Q, showing total bacteria at 16 18 C. in August. 

 Abscissse = hours of incubation of plates; ordinates = numbers of colonies 

 of bacteria per 1 c.c. 



