nishsa direct method of comparing the growth- temperature re- 

 lations of different organisms, no matter In what units the 

 rates have bean expressed. If the graphs of two different pro- 

 cesses coincide throughout, the growth- temperature -Hlations 

 must lie considered to be the same. On the other hand, If the 

 two graphs fall to coincide throughout, their lack of coinci- 

 dence furnish evidence of the particular manner In vhlch the 

 temperature relations of the two processes differ. 



