AS COMPAEED WITH THAT OF OTHER VENOMOUS SNAKES. 133 



Still it cannot be regarded certainly as a very powerful one, for 

 the cilia of the freshwater mussel continued to move for many 

 hours in a strong solution of cobra-poison ; though in other 

 experiments the action was apparently arrested even in weaker 

 solutions of the poison. In the case of cilia from the frog's 

 mouth, the results were more definite, but action was not 

 invariably destroyed. The results of the action of the poison 

 on the amoeboid movements of the blood-corpuscles are not 

 very definite. In the case of Vallisneria, the circulation in the 

 cells went on with undiminished vigour after the application of 

 the poison for 2 hours. 



