CHAPTER VIII. 



WHEN Nature instituted milk as a 

 food she also provided the manner 

 of supplying it in such a way that 

 it should not be exposed; the teat of the 

 mother entered the mouth of the offspring 

 and the food passed from one to the other 

 without suffering external contamination, 

 except what might be caused by extraneous 

 matter attached to the outside of the teat. 

 Human ingenuity has imitated the method, 

 and when the scientist wants to secure milk 

 in its natural state he inserts a sterilized 

 glass tube into the teat and draws milk into 

 a sterilized bottle. The point of interest to 

 the dairy farmer is this: Milk taken from 

 a cow by the scientist in this manner will 

 usually keep fresh and sweet at room tem- 

 perature for years when protected from 

 later contamination. From this fact the 

 farmer can lay down all the necessary rules 

 for the handling of his product, and all these 



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