BLOOD. 247 



For instance^ the 21 parts of blood-corpuscles were observed 

 by Andral and Gavarret in blood which left a residue of only 

 85^ while the 185 of corpuscles occurred in blood which gave a 

 residue of 275. Hence the per-centages of the corpuscles in 

 these two cases, in regard to the solid residue, are 25- and 

 67^ respectively. 



The deviations in the proportions of the various constituents 

 do not occur singly, for instance, we do not find the other con- 

 stituents in normal proportions, and the blood-corpuscles alone 

 very low ; neither are they all found simultaneously deficient or 

 in excess : but there exists, as we shall soon see, a certain an- 

 tagonism between the proportions of the individual constituents. 

 Thus we find that when the fibrin is much increased, the cor- 

 puscles are diminished in quantity, and vice versa. 



In every 100 parts of the residue of healthy blood, we have 

 1 of fibrin and 53 of li£ematoglobulin. In diseased blood I 

 have observed the following proportions : 



A similar relationship is exhibited in the analyses of Andral 

 and Gavarret; the range of the corpuscles is, however, not so 

 extensive. 



Healthy blood 

 Diseased blood 



The connexion between the fibrin and blood-corpuscles is 

 still more stiikingly exhibited in some of the analyses of Andral 

 and Gavarret, in which blood was taken several successive times 



