KLEIBEP 



45 



40 



35 



.r30 



25 



20 



15 



10 



I 



i 



^ 



Environmental 



Max. 

 Min. 



Cow's rectal 



Max. 

 ^XM Min. 



MAY JUNE JULY AUG. 



(Observations by Ittner, Imperial Valley, California, 1946) 



Figure 6. Daily fluctuations of a cow's body temperature compared with those 

 of the environmental temperature. 



252 



