TOXICITY OF THE BLOOD OF VENOMOUS SNAKES 221 



Summing up what has been stated above, we find that the 

 l)lood of both poisonous and non-poisonous snakes contains toxic 

 substances, destructible by heating to 68' C, and physiologically 

 distinct from venoms, but like the latter possessing the property 

 of dissolving the red corpuscles of the majority of vertebrates and 

 of producing haemorrhages. 



