24 INDIAN SNAKE POISONS, 



included in the ligature. One cubic centimetre of 

 solution of cobra-poison, composed of equal parts of 

 distilled water and fresh cobra-poison was injected into 

 its dorsal sac. 



2.53 P.M. Injection. 



It gradually became paralysed till it ceased to show 

 any signs of reOex action. 



3.33 P.M. The muscles of the left or poisoned side 

 contracted with 2' 9 7 volts. • 



8.38J p M. The muscles of the right or non-poisoned- 

 side contracted with 2*10 volts. 



3.37 P.M. Nerve of poisoned side caused contraction 

 of muscle when stimulated with 2 7 volts. 



3.39 P.M. Ligatured (or non-poisoned) nerve, 1*08 

 volts. 



Here there was a marked difference between the 

 poisoned and the non-poisoned side, the non-poisoned 

 side being the more sensitive, but the nerve on the 

 poisoned side had lost its excitability to a greater 

 extent than the muscle. But the paralysis of both the 

 muscle and the nerve was well marked. 



Experiment IX. 



The right thigh of a frog {Rana tigrina) was ligatured 

 with the exception of its sciatic nerve, and one cubic 

 centimetre of cobra-poison solution, consisting of equal 

 parts of distilled water and fresh cobra-poison, injected 

 into its dorsal sac 



