BLOOD. 



22!) 



1 000 parts of this blood con 

 Water 



Solid residue 

 Fibrin 

 Fat 



Albumen 

 Globulin 

 Haematin 

 Extractive matter and salts 



tallied: 



798-656 

 201-344 

 2-208 

 2-713 

 77-610 

 100-890 

 5-237 

 9-950 

 100 parts of blood-corpuscles contained 5-2 of haematin and liajniapliajin. 



These two analyses indicate a great similarity between the 

 blood in both sexes in a state of health; and if, in the absence 

 of other and better experiments, we venture to take these as 

 descriptive of the composition of normal blood, we may give its 

 leading features in the following terms. It contains about 20[J 

 of solid constituents ; not much more than 0*25 of fibrin, and 

 about an equal quantity of fat ; the blood-corpuscles considerably 

 exceed the albumen in quantity, and contain about 5^ or 6^ of 

 colouring matter. 



Lecanu, although his method of analysing the blood is dif- 

 ferent, obtains similar results. He has given in his Thesis,^ 

 ten analyses of healthy venous blood, which I shall here com- 

 municate. 



The mean of these analyses would give — 

 37 789-320 210-680 68-059 132-490 



10-688 



From these analyses we therefore obtain about 21g of solid 

 residue, and a larger proportion of blood-corpuscles than albu- 

 men. Lecanu assigns to the fibrin rather a larger proportion 

 than I do, viz. 



•295. 



Etudes clumiiiues sur le Sang liumain, etc., p. 62. 



