88 



THE ROYAL SOCIETY OF CANADA 

 Table II. 



While this method could not be used for an exact comparison 

 of the two species selected, the above figures seem to us to indicate the 

 existence of spores in a single species possessed of unequal powers of 

 resistance to moist heat. 



From the results obtained from these two experiments we have 

 arrived at the following conclusions: 



1. That there is no correlation between any one growth charac- 

 teristic and the heat resistance of the spores. 



2. That strains of B. Anthracis vary in their heat resisting power. 



3. That individual spores of the same strain of B. Anthracis 

 vary in their resistance to heat. 



4. That there is no specific thermal death point for Anthrax 

 spores. 



We wish to express our indebtedness to Professor Adami for 

 enabling us to submit this paper to you. 



