394 THE MILK OP MAMMALS OTHER THAN THE COW. 



TABLE CIX.— Continued. 



Variation ■with Lactation. — There exist several series of 

 analyses in which the time which has elapsed since parturition 

 has been noted. Of these, the results of Carter and the author 

 represent normal milks, those which disagreed with the child in 

 any way having been excluded. The Tables due to Pfeiffer, 

 Leeds, and Camerer and Soldner contain all the analyses made 

 by them without any eliminations (Table CIX.). 



Probable Mean Composition. — From the above results the 

 following probable composition may be deduced for normal 

 human milk after lactation has become regular : — 



Variation of Constituents. — The following maxima and 

 minima have been found : — 



Fat, . 

 Sugar, 

 Protein, 

 Ash, . 



9-05 (Pfeiffer), 

 8-89 (C. and R.), 

 5-56 (Pfeiffer), 

 0-50 (C. and R.), 



Per L-ent. 

 0-47 (C. and R.] 

 4-22 (Pfeiffer). 

 0-85 (Leeds). 

 0-09 (Pfeiffer). 



* In Camerer and Soldner's .second series the proteins are obtained by 

 multiplying the nitrogen by 6-38. 



