678 



Diseases of the Genital Organs 



minister large quantities of calf scours serum, but I cannot 

 believe that this in any way supplied any nutrient con- 

 stituent of the milk destroyed by heat. It appears to me 

 quite clear that the sole result of the serum was the supply- 

 ing of protective substances which held in control or destroy- 

 ed bacteria existing in the alimentary canal at birth. 

 Further clinical evidence regarding the action of heat upon 

 the healthfulness of milk is furnished by placing the calf 

 Chart of Calf No 70 



FiG. 2o;— Continuation of Fig. 208. 



