EXPERIMENT STATION BULLETINS. 



449 



!SCOi>0S bccl^rCa 



1S(?0000 



lOOQ OOO 



TOO OOO 



700 OOO 



•t s IZ 



57 



FIG. 1, 



Theoretical aiirl Actual Growth of Bacterium A. 



Dotted line theoretical number. 



Full line actual number. 



