MILK OF THE IXFANT. 107 



Guillot. 1 The following is an analysis by Quevenne of the 

 secretion obtained by Gubler. The observations of Gubler 

 were very extended, and were made upon about twelve hun- 

 dred children. The secretion rarely continued more than 

 four weeks, but in four instances it persisted for two months." 



Composition of the Mttk of the Infant. 



Water 894'00 



Caseine 26'40 



Sugar of milk 62*20 



Butter 14*00 



Earthy phosphates 1-20 



Soluble salts (with a small quantity of insoluble phosphates) . 2*20 



1,000-00 



This fluid does not differ much in its composition from 

 ordinary milk. The proportion of butter is much less, but 

 the amount of sugar is greater, and the quantity of caseine 

 is nearly the same. 



Of the other fluids which are enumerated in the list 

 of secretions, the saliva, gastric juice, pancreatic juice, and 

 the intestinal fluids have already been considered in connec- 

 tion with digestion. 3 The physiology of the lachrymal se- 

 cretion will be taken up in connection with the eye, and the 

 bile will be treated of fully under the head of excretion. 



1 GUILLOT, De la secretion du lait chez leg enfants nouveau-nes, et dts accidents 

 qui peuvent faccompagner. Archives generales, Paris, 1853, ome serie, tome iL, 

 p. 513, et seq. 



GUBLER, Jfemoire sur la secretion et la composition du lait chez les enfants 

 nouveau-nes des deux sexes. Comptes rendus et memoires de la Societe de Biologie, 

 annee, 1855, Paris, 1856, p. 289. 



3 See vol. ii., Digestion. 



