248 



CIRCULATING FLUIDS 



from the same patient. We select four cases by way of illus- 

 tration : 



In the following table drawn up from Andral and Gavarret's 

 analyses, the first column gives the proportions of fibrin and of 

 corpuscles in 100 parts of solid residue. The second column 

 does the same, only that in this case the quantity of fibiin is 

 considered constant, and is represented by 1'5, and the propor- 

 tion of corpuscles is estimated accordingly 

 which makes their increase more obvious. 



an arrangement 



[Becquerel and Rodier have laid it down as a general law 

 that " bleeding exerts a remarkable influence on the composition 

 of the blood, the greater the oftener the bleeding is repeated.^' 

 The three following tables show the mean results of the first, 

 second, and third venesections, performed on a certain number 

 of Cruveilhier's patients. Ten patients were bled twice, and 

 ten thrice, so that we have 20 first, 20 second, and 10 

 third bleedings. 



