926 COMPOSITION OF MILK. 



Total 12-98 8-35 13-20 14-38 12-02 



Liebig maintains that the proportion ofcaseine 

 in the milk of woman is increased by her living 

 on animal food; while the proportion of oil is 

 increased by a farinaceous diet. (Vol. ii. p. 83.) 

 But we perceive from the above Table, that the 

 ratio of caseine is 2*6 times greater in the milk 

 of herbivorous animals than in that of woman, 

 who lives partly on animal food. It also follows, 

 according to Liebig's theory, that nearly six 

 times more aliment is required to support the 

 respiration of an infant, than is employed in its 

 nutrition, and 2'23 times more in the calf, colt, 

 kid, and lamb. But so far is this from being 

 the case, that the temperature of the calf, kid, 

 and lamb, is several degrees higher than that of 

 the infant ; while experience demonstrates that 

 human milk is not less nutritious than that of 

 other animals. The inference is therefore clear, 

 that the sugar and butter of milk, like the starch 

 of grain and other vegetables, serve not merely 

 to support respiration, but is also convertible into 

 blood and the various tissues, consequently, 

 that there is no foundation in nature for the 



