POISON OF SOME INDIAN VENOMOUS SNAKES. 27 



the limbs. The irritability rapidly disappeared, and at 3.33 was 

 entirely gone. 



The blood coagulated firmly after death. 



When examined after death with a magnifying power of 

 400 diameters, crenation of some of the red corpuscles was 

 observed, but no other change was noticed. 



Experiment V. 



February 11th. — About h — 1 cc. of a mixture of Dahoia- 

 poison with alcohol (1 part poison with 4 of alcohol) was 

 injected into the left thigh of a small guinea-pig at 1.45 p.m. 



Immediately afterwards it became very restless, and the nose 

 began to be twitched inwards towards the breast. 



1,48. The left leg drags somewhat. 



1.54. The hind legs are jerked backwards regularly every few 

 seconds. 



1.55. It bites at its left leg. 



1.58. It has drawn itself together almost into a ball. 



2.2. The twitching still continues. 



2.23. Its hind quarters have become nearly paralysed. It 

 lies on its side, and convulsive movements occur from time to 

 time. 



2.28|-. It is apparently dead. The heart continues to beat 

 strongly. On opening it, the lungs were slightly congested. 

 Peristaltic movements of intestine active. The blood from the 

 heart was allowed to run into a clean beaker. It was of a dark 

 colour, but became red on exposure to air. It shortly after- 

 wards coagulated and formed a firm clot. 



Experiment VI. 



February 11th. — About 1 cc. of Dahoia --poison (1 part poison 

 mixed with 4 parts of alcohol) was injected under the skin of 

 the left thigh of a guinea-pig at 1.13. 



1.17. Animal rubbing its mouth with its fore-paws. It is 

 restless and moves about. There are slight twitchings, and it 

 sits on its hind legs like a cat. 



1,22. Very restless. 



