1874.] Poison uf Indian Venomous Snakes. 71 



Experiment III. 



A full-grown young pigeon had 3 milligrammes of dried cobra-poison 

 injected into the thigh at 2.49 P.M. 



2.53. The respiration is very hurried; the bird presents a sluggish 

 appearance and begins to droop. 



3.2. The eyes are now closed and the bird is crouching ; legs extended. 

 3.6. Convulsions ; head and back resting on the ground ; legs extended 



Sand paralyzed. 



3.10. Dead in 21 minutes from the injection. 



Electrodes inserted into the cord soon after death caused general con- 

 tractions of the extremities, showing that the cord was not paralyzed. 

 Its irritability soon disappeared. The symptoms in this bird are different 

 from those in the one poisoned by Daboia-vims ; there is more lethargy, 

 nodding of the head, and apparent drowsiness before the convulsions, 

 which are not so sudden or so violent. 



Experiment IV. 



A full-grown pigeon had 3 milligrammes of dried cobra-poison injected 

 into the peritoneum at 3.5 P.M. 



3.15. The bird is sluggish, nodding its head. 



3.17. (raping ; the head is twitching^ and the bird can hardly stand. 



3.22. Convulsions. Several grains of Indian corn are vomited. 



3.25. Quite paralyzed. Convulsions-. 



3.26. Dead in 21 minutes from the injection. 



Electrodes in the cord soon after death caused movements in 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 Ilth. About j-1 cubic centimetre of a mixture of Daboia- 

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

 the left thigh of a small guineapig at 1.45P.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 paralyzed. 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. 



