BLOOD. 



195 



The horse, which was suffering from malleus huraidus, had 

 taken its ordinary food up to the time of its death. 



This was a meagre horse, killed in consequence of delnlity 

 and old age. 



From these analyses Ave are led to the conclusion that arterial 

 blood contains less solid residue generally than venous blood : it 

 cofitains less fat, less albumen, less Juematin, less extractive mat- 

 ters and salts than venous blood. The blood-corpuscles of ai'terial 

 blood contain less colouring matter than those of venous blood. 



There does not appear to be any fixed relation between the 

 fibrin and globulin (or, which is nearly the same thing, the 

 mass of the blood-corpuscles,) in the contrasted analyses ; for 

 in Nos. 1 and 2 the fibrin in the venous exceeds that iu the 

 arterial blood, while in Nos. 3 and 4 we observe exactly the re- 

 verse. The same fluctuation is observable with respect to the 

 globules, or the mass of the blood-corpuscles. 



In an analysis of the blood of a healthy ox, made with the 

 same object, I found the quantity of fibrin to be larger in the 

 arterial than in the venous blood. In the former case it 

 amounted to 4;-90, and in the latter to only 4*82 in 1000 parts. 



I shall now give the results obtained by other chemists upon 

 this subject : I must, however, observe that their methods of 

 analysis differ considerably from mine, and that I consider some 

 of their results questionable. 



only those intended for anatomical purposes. Some were too old and weak to be of 

 any use ; others were suffering from incurable disorders. Although it may be fairly 

 questioned whether the composition of the l)Ioo(l in these animals is normal, the 

 correctness of the comparative results must be unaffected as long as the lungs and 

 other secreting and excreting organs remain healthy, provided there is no reason for 

 supposing that the general metamorphosis of the blood is morbidly affected. 



