388 G. F. Barker—Physiological Chemistry. 
ie 
alcoholic potash. No substance which can interfere with the 4 ’ 
physiological method, it is evident that it should furnish blood 
such as flows in the veins during life. This is especially neces- 
sary with portal blood, as at death there is a stasis of blood in — 
the liver ; and, since the nutrient arteries of the liver pour 
their blood, not into the hepatic vein, but directly into the 
portal capiilaries, there may easily be regurgitation of blood — 
containing sugar, Though Figuier has avoided this source of 
error, he has fallen into another ; it needs no deep insight into 
the distribution of the blood to perceive that the 400 grams 
of portal blood which he took is far more than the normal 
content of that vein, even in a very large dog. According to 
the analysis of Bischoff and Welker, the blood constitutes not 
cavity opened quickly, a noose placed 10 or 15 m.m. below Me 
ture, the blood pressed toward the mesenteric and splenic 
subsequently, In 16 of these, from whom from v9 to ta 
grams of portal blood were taken, not a trace of sugaT hese | 
tected. Tn order to see whether any difference would r 351 
ry . : ge . ml Wate 
