30 G. F. Barker—Physiological Chemistry. 
all the organs of the body ; whence it is at length absorbed by 
the lymphatics, and poured, partly into the nght subclavian 
vein directly, partly into the left subclavian by means of the — 
thoracic duct. The lymphatics thus supply sugar to the © 
superior vena cava, as the hepatic veins do to the snteride In3 
the carnivora, this action is tem mporary, taking place only © 
during digestion ; in fret herbivora, since they are always in ~ 
digestion, it is perm 
a report vs the Paris Academy of Medicine upon © 
the foibnintiok of glycogen in the animal organism,” PoGcGIaLE © 
states as the result of his experiments, that the preparation of 
glycogen—which in its properties stands between starch and 
extrin—by means of glacial acetic acid, is to be preferred to 
any other method. As contained in a concentrated decoction — 
of the liver, or in muscular juice, this substance, after gently — 
heating with sa iva, passes readily into fermentation, wi ith the 
evolution of carbonic acid. With animals fed exelasively on 
meat, glycogen is found only in the liver. It exists abund- — 
antly in the liver of the herbivora, but occurs in other organs — 
only when the food is rich in amylaceous matter 
sig Dr. F. W. Pavy, in a communication ® the ae 
heviktigation was undertaken to anata it. “AS the result of | 
more than 60 observations, he now asserts that the condition — 
of the blood after death cannot be taken as an indication of its — 
state in life. He finds that in blood drawn from the right _ 
ventricle of an animal in a tranquil state, hardly a trace of © 
sugar can be detected ; while in blood collected from a fine 
incision in this organ immediately after death, sugar is present, 
In one ae bare y a trace Poe in the blood a t 
is sibiesds soe ind ca As Bernard ane shown that a : 
ergs ertible into sugar exists in the liver, it 
was necessary first to search for some substance which, when 
imisodusell into this organ, would check this post-mortem 
transformation. Potassic hydrate was found to answer this — 
_-*J. pharm., III, xxxiv, 99; Jahresb., 1858, 569. + Proc. Roy. Soc, ix, 300. 
