643 



B 



'200 



V2OO 

 V2OO 



1/ 

 /lOO 



VlOO nearly 



VlOO 



Result: Somewhat quicker formation of antibodies when injecting 

 nonsensitized red cells, and besides formation of somewhat higher 

 titre. But the difference is not much. 



Intraperitoneal injection of horseblood 



A nonsensitized. 



B sensitized with 4 dose ) 



II. 



/'2 ccm. per 



kg. 



after 12 days 



< 



< 

 < 



Result: with none of the rabbits a high titre is to be found. But 

 the immunisation with the A rabbits is distinctly quicker and better 



