1873.] of the Poison of some Indian Venomous Snakes. 339 



7'. Kespirations are deeper than usual. 

 9'. Legs again twitching. 



10'. The animal is restless and moves round and round inside the bell- 

 jar. Grunts occasionally and grinds its teeth. The hind-quarters are 

 twitched upwards, and the nose is drawn in towards the chin at the same 

 time. 



13'. Bites at the spot where the injection was made and passes water. 

 22*. It can no longer walk. 



23'. It has sunk down and lies flat on the table, leaning rather to one 

 side. Respirations are deep. There are occasional twitches of the legs. 



25'. Cornea is sensitive. Occasional convulsive stretches. 



27'. Cornea almost insensible. Respiratory movement of nostrils 

 continues. 



28'. Cornea completely insensible. Post-mortem examination made 

 immediately. The muscles of the abdomen were dark-coloured. Peri- 

 staltic movements of the intestines occurred when the abdominal cavity 

 was opened. The heart was dark and slightly dilated ; all its cavities 

 were contracting, though feebly. There were three beats of the auricles 

 to each one of the ventricles. Irritation of the nerves in the pelvis 

 caused contractions of the legs. 



35' after injection. The heart is still feebly contracting. 



Experiment VI. 



October 28th. — Injected about a grain and a half, or two grains, of the 

 precipitate, which was thrown down from cobra-poison by alcohol, into 

 the thigh of a guineapig. 



2.30. Injection made. A few minutes afterwards it passed some 

 milky-looking water, and then remained perfectly quiet. 



3.8J. Passed water, which was quite clear. 



3.33. Injected about two grains into the right femoral vein. It 

 passed clear water almost at once. 



3.35. Its nose gave a jerk inwards. "Wounded leg drawn up. 



3.38. Nose twitches frequently and the animal emits a faint barking 

 sound. 



3.40. Slight tremors. 



3.50. Begins to eat a piece of bread placed near it. 

 3.58. Still twitches. 



4.8. Is still sluggish, but seems nearly well. Recovered. 



Experiment VTI. 



October 29th, 1872.— About J a grain of fresh but coagulated and 

 cheese-like cobra-poison was suspended in distilled water and injected 

 into the back of a guineapig, weighing about a pound and a quarter. 



2.23. Injection made. 



