CHEMICAL EQUILIBRIA 



105 



in the blood-corpuscles to the concentration in the 

 solution, is greater than i. 



The following figures were obtained : 



Evidently the substances may be divided in two 

 groups, of which the latter (from saponin) show a 

 strong affinity for the proteids contained in the 

 corpuscles. Without doubt they enter into com- 

 binations with them, which are the less dissociated, 

 the higher the value of the partition coefficient is. 



In some few cases, as for the absorption of 

 agglutinins in their specific bacilli and for the ab- 

 sorption of so-called amboceptors (see p. 128) in 

 their specific erythrocytes, I have found, in calculat- 

 ing the figures observed by Eisenberg and Volk, 

 that the ratio of the two concentrations in this case 

 in the bacteria and in the surrounding fluid is not 

 constant. The result of these calculations is that 

 the concentration B of the agglutinin in the bacilli 

 is proportional to the § power of the concentration 

 in the surrounding fluid. This regularity is indicated 

 by the diagrams Figs. 26-29 regarding the absorption 

 of two agglutinins (typhoid, Fig. 26, and cholera, 



