f)44 



tlian willi llioso of series II and (\ The condiict of llie .1 i'abbits 

 is niiK'li more regular too; with B and C' there are much more 

 individual difFereuces. 



III. 



Summary : No great differences. But now the B rabbits (which 

 have been injected with weakly sensitized red cells) are quickest in 

 producing amboceptors. 



The C rabbits tinally lag behind a little, thougii not much, the 

 A and the B rabbits reach the same titre on an average. Soon after 

 the injection (5 minutes to 72 day) ü\e rabbits died, 2 B and 3 C 

 rabbits. 



Consequently an intraAenons injection of the same quantity foreign 

 red cells is much more dangerous when they are loaded with 

 immune serum. 



