260 BLOOD 



in fibrin, or only contains it in scarcely perceptible traces. While 

 in the portal serum there are 8*4 parts of solid substances to 100 

 parts of water,, there are 11/8 parts of solid matters to 100 parts of 

 water in the serum of hepatic venous blood. When we compare 

 the solid constituents in the serum of both kinds of blood, we find 

 that hepatic venous blood contains less albumen and fat, and a much 

 smaller quantity of salts ; while the extractive matters, including 

 sugar, are considerably increased. In the solid residue of the 

 hepatic venous blood of horses, I found in three determinations 

 (in which the alcoholic extract was excited to fermentation by 

 means of yeast, and the sugar, C 12 H 12 O 12 , was calculated from the 

 developed carbonic acid) that the sugar was respectively 0'635, 

 0'893, and 0'776-g-; whilst in the residue of the corresponding 

 portal blood I only once succeeded in detecting sugar, and then it 

 only amounted to 0*055^. 



The blood of the splenic vein, which has only been chemically 

 examined, and compared with that of the jugular vein in horses 

 and dogs by Beclard,* contains more water than the last-named kind 

 of blood. The mean of 14 investigations in the case of dogs was 

 77-815 J, the extremes being 74'630 and 82'681 . The corresponding 

 jugular venous blood contained, on an average, 1*608^ less water 

 than the blood of the splenic vein. In two parallel investigations of 

 horses* blood, the latter kind contained from 0*4 to 0*5 Jj- more water 

 than the jugular venous blood. The blood-corpuscles are somewhat 

 diminished, but the fibrin and the residue of the serum somewhat 

 increased, in the blood of the splenic vein. Eckerf also found in 

 the latter blood the cells containing corpuscles, discovered by Kol- 

 liker in the splenic juice. This was especially the case in the splenic 

 venous blood of horses. From 1 to 5 corpuscles, or small yellow 

 granules, were found enclosed in one capsule. 



The menstrual blood contains no fibrin, as was shown by Jul. 

 VogelJ in the case of a person suffering from prolapsus uteri, and 

 has been recently confirmed by C. Schmidt. It yields a colourless 

 but distinctly alkaline serum and a red deposit of blood-corpuscles ; 

 these are interspersed with numerous colourless cells, but there 

 is no trace of the so-called fibrinous flakes. It contains about 

 16^ of solid constituents. 



Henle believes that the only reason that the menstrual blood 



Gazette MeU 1848. No. 4, p. 22, Janv. 



t Handworterb. de Physiol. Bd 4, S. 146. 



J Wagner's Lehrb. d. Physiol. 2 Aufl. S. 230. 



Diagnostik verdachtiger Flecke. Mitau u. Leipzig, 1848, S. 8 u. 41 . 



