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 



Cha.r.'t of C alf No 70 



Chart Nol. Continued 



Fig. 209 — Continuation of Fig. 208. 



