G. F. Barker —Physiological Chemistry. 267 
cult to demonstrate this, but with a decoction of the tissues 
the reaction is easily obtained. This glycogenic matter remains 
in the muscular tissue during the entire period of intra-uterine 
life, and disappears very rapidly after birth by muscular an 
respiratory action. The glandular system too, contains during 
fetal life no glycogenic matter ; the salivary glands, the pan- 
creas, the glands of Lieberkiihn, the spleen, and the lymphatic 
glands having been examined. One glandular organ, the organ 
Which in after life performs the glycogenic function, must be 
excepted. Though in its evolution, the liver is not accompa- 
nied by glycogenic matter, yet toward the middle of foetal life 
it becomes histologically developed and acts as a biliary and 
glycogenic organ. It seems designed therefore, to continue in 
the adult a foetal function previously performed by other and 
temporary organs. Glycogenic matter then, plays as important 
apart in the organic development of the foetus as it performs 
in the nutritive function in adults. ‘‘We know in fact that 
it ceases to be produced in the liver whenever any morbid con- 
dition arrests the nutritive function. The substance then which 
tinuation of it.’ The phenomena of nutrition in the adult 
may therefore be elucidated by studying the phenomena of fe- 
tal evolution, 
(51.) A paper by Rouaer was presented to the Academy 
face of the large, and the villi of the small intestine. With 
certain animals, all the intestinal epithelium is filled with amy- 
laceous matter three or four days before birth ; though at this 
time the liver, completely developed for a long period, furnishes 
this Matter abundantly. Finally, finding epithelial cells con- 
ing glycogenic matter on the lingual and vaginal mucous 
Membranes even after birth, Rouget concludes that the presence 
of amylaceous matter in any tissue does not argue a special 
* O, R., xlviii, 792. 
