WHEN THE MOTHERS FAIL 29 



Resttlt of Second Analysis in Ten Days 



Feb Gekt 



Fat 3.40 



Sugar '.:...; 7.00 



Proteid . 1.35 



Many cases similar to the foregoing might be 

 cited to show the influence of nutrition upon lacta- 

 tion, were further demonstration necessary. There 

 is, doubtless, a very definite relation between the 

 nutrient qualities of the diet and the nutrient value 

 of the milk produced. This is true of the human 

 species, and probably of the lower animals also. 

 Nevertheless, it is certain that many mothers whose 

 diet is alarmingly deficient in all the constituents 

 deemed necessary to the proper nutriment of the 

 body will produce milk which is apparently not 

 deficient in those qualities ; and other mothers whose 

 diet appears to be in every way satisfactory will 

 produce milk that is deficient in the very nutrients 

 which in their food marks its superiority. Why 

 this should be so we do not know, any more than we 

 know why the milk of exceptionally robust women 

 is in general of poorer quality than that of lean 

 women.'" Science has not yet explored the vast 

 domain of physiological chemistry very far. 



Enough has been said in this connection to show 

 that, while there is no present evidence of sufficient 

 volume to justify the belief that defective nutrition 

 is the sole cause, or even a very important contrib- 



