424 



PROTEIN POISONS 



tized to the cancer-cell and then at varying percentages 

 10 c.c. of cancer-cell emulsion was injected intravenously 

 into the animals. In unsensitized rabbits there was no 

 noticeable effect. Rabbits with a percentage of above 



FIG. 27 



FIG. 28 



<-- 1-9-12- -X 



FIGS. 27 and 28. A, rabbit injected subcutaneously with 5 minims of 



1 per cent. s. r. sarcoma at 12 M., 2 P.M. and 3 P.M.; B, rabbit injected 

 subcutaneously with 0.1 c.c. of 2 per cent, mixed residue at 12.15 P.M., 



2 P.M., and 4 P.M. 



30 of large mononuclear cells usually died within one to 

 three hours, and rabbits with a lower percentage, but with 

 a marked increase, were made sick, but recovered. 



Sickness is immediate after injection; the animal at once 

 falls on its side and begins violent scratching. The respira- 



