1 6 MILK [n 



The variation in the composition of the milk of 

 different cows is due to a number of causes : among 

 them may be mentioned the individuality and breed 

 of the cow, the period of lactation, and the feeding. 

 Before, however, considering the conditions which 

 influence the quantity as well as the quality of milk, 

 a short description of its different constituents may 

 be given. 



Before concluding the Chapter, a list of some of 

 the standards adopted in some of the States of 

 America may be given. Milk showing a poorer 

 composition than the standard is regarded as 

 adulterated. 



