480 COLLECTED STUDIES IN IMMUNITY. 



the lecithin is brought into proximity with cell constituents other 

 than those normally in its proximity. In other words, we are dealing 

 with the deleterious action of a vitally important substance which 

 has been forced into the wrong place. This conclusion is made plain 

 if we bear in mind the fact that in the blood-cells primarily suscep- 

 tible to cobra amboceptor, the ha?molytic action depends not on the 

 addition of new lecithin, but on a transposition of the lecithin pre- 

 formed in the cell, due to the anchoring of the cobra amboceptor. 



