314 



GROWTH OF CHEMICAL CONSTITUENTS 



D 1, consisting of milk, cabbage, oats, bran and white bread. 



N 2, containing a liberal amount of fat-soluble factor in the form of 

 butter and cod-liver oil, 0.52 per cent Ca and 0.5 per cent P (in fresh 

 diet). 



-A, a diet sunilar to N 2, but deficient in fat-soluble factor, the only- 

 source of fat being cotton seed oil, and containing only 0.25 per cent Ca 

 in the fresh diet. 



TABLE 167 

 Average weights of mothers 



TABLE 168 

 Average weight and composition of the young at birth 



* The figures in these two columns represent the weights of the young after 

 removal of stomach and intestines. 



Their results appear in tables 167 and 168. 



In the course of a study on the influence of diet on the teeth 

 and bones, Toverud ('23) has determined the inorganic constituent 

 in newborn rats from normal mothers, — ^table 169. 



In connection with a study of the phosphorus compounds in 

 the Albino after ovariotomy Heymann ('04) has recorded the 

 P2O5 distribution in the normal rat (see Keith and Forbes, '14). 

 His data for the normal appear in table 170. 



