i8 



QUATERCENTENARY STUDIES IN PATHOLOGY 



TABLE IX.— Toxin io. 



Testing Toxicity on Guinea-pigs. 

 Subcutaneous injection. 



TABLE X.— Toxin 

 Testing Toxicity on Rabbits. 

 Subcutaneous injection. 



All guinea-pigs and rabbits alive at the end of one month. 



In regard to the stability of the toxin, the writer's experience was in 

 agreement with Markl's. The toxins were found to be rather unstable, 

 especially at ordinary hot weather temperatures as, for example, when 

 Toxin 10 was tested two months after the test recorded in Tables V., VI., 

 VII. and VIII., it was found to have so far deteriorated that the minimal 



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