EQUILIBRIA IN ABSORPTION PROCESSES 145 



ABSORPTION OF TYPHUS AGGLUTININ BY TYPHOID BACILLI 



ABSORPTION OF CHOLERA AGGLUTININ BY CHOLERA VIBRIOS 



As is evident from these figures, on the addition of a 

 small quantity of agglutinin it is absorbed (nearly) totally ; 

 B obs is found to = o. Indeed, the method of observation 

 does not permit the observation of values of B below 

 B i. On the further addition of agglutin the absorbed 

 fraction decreases continuously until at the end the absorbed 

 fraction is not greater than the non-absorbed fraction. 

 It has been hitherto often assumed that the agglutinin 

 was chemically bound in the bacteria. To carry out this 

 idea consequentially, we must suppose that the resulting 



