THE FEMALE REPRODUCTIVE ORGANS. 859 



flocks than that of cows' milk, and seems to dissolve more easily 

 and completely in gastric juice. The former also contains rela- 

 tively more lecithin and less ash, particularly the lime salts. On 

 the other hand, cows' milk contains less sugar and -fat. In using 

 it, therefore, for the nutrition of infants it is customary to add 

 water and sugar. The composition of cows' milk is so well known 

 that it is easy to modify it for special cases according to the in- 

 dications. The rules for this procedure will be found in works 

 upon pediatrics. 



