204 



CIRCULATING FLUIDS : 



blood of the vena portfe, which was made for the purpose of 

 comparison with the blood of the hepatic vein. 



In this analysis the colouring matter is separated into hse- 

 matin and hsemaphajin. I obtained from 1000 parts : 



Analysis 7. 

 Water 801-500 



Solid residue 

 Fibrin . 

 Fat 



Albumen 

 Globulin 

 Haematin 

 Haemaphaein 

 Extractive matter, with some haemaphaein 

 and with salts 



:} 



198-500 

 6-200 

 2-700 

 90-000 

 75-600 

 3-400 

 1-800 



14-400 



This blood was very rich in colouring matter, there being 

 no less a proportion of it than 6-8 in 100 parts of blood-cor- 

 puscles, of which 4-5 were hsematin and the remaining 2*3 

 haemaphaein. In addition to this, the extractive matters re- 

 tained a considerable quantity of hsemaphsein. 



The circumstance that the blood of the vena portse in analy- 

 sis 6 contains less solid residue, and a smaller proportion both 

 of albumen and blood-corpuscles than arterial blood, while the 

 reverse is observed in analysis 5, need not excite much''surprise 

 when we remember that in analyses 3, 4, and 6 the blood was 

 taken from an old, decrepid, starved animal. 



Schultzi has made some very important observations on the 

 relative constitution of the blood of the vena portae, as contrasted 

 with arterial and ordinary venous blood. 



Solid constituents. 



The blood taken from the vena portse of fasting horses gave, 

 as a mean of three analyses, IG-QO^^ of solid constituents, while 

 arterial and venous blood gave IS'SG^ and 18*62 respectively : 



' Schultz's analyses of the portal blood would, in my opinion, have yielded more 

 important results, both as regards the absolute and the comparative composition of 

 the fluid, if he had determined all the constituents from the same identical blood. 

 He appears to have used the blood of diiferent animals for the determination of the 

 different constituents. The absolute composition of the blood is assuredly different 

 in different animals, but there are also relative differences depentling on age, nutri- 

 tion, and other circumstances. 



