\Cellular Immunity. 



99 



' Cob/a venom : 



1 in 10,000 , : 



12-23 12-3] "r-J/'v;'- 73-4-e 



Fig. 8. — Isolated iixtestine of immunised rabbit. Showing that the toxic elfect of 1 in 5,000 on the latter 



less than that of 10,000 on the former. 



hsemolysed than the corpuscles of the unimmunised animal. In the case 

 of the rabbit immunised to 10 M.L.D., the corpuscles were haemolysed by 

 about one-third of the hsemolytic dose for the normal animal. 



These results confirm what was found for the agglutination of red cells 



