1874.] Poison of Indian Venomous Snakes. 315 



4.4. Convulsive motions occur, but the animal can still run. Almost 

 immediately after, when laid on its side it could not get np. 



4.7. The cornea is now insensible. A cannula placed in the trachea 

 and artificial respiration commenced. 



4.15. A needle placed in heart. Pulsations quick. The artificial re- 

 spiration was discontinued. The pulsations became quicker. 



In this experiment the paralysis began in the fore legs. There was di- 

 stinct loss of coordination ; but the animal could run up to the last, 

 although it could not walk. This indicates that the higher coordinating 

 centre (probably the cerebellum) was paralyzed before the lower ones, just 

 as in the case of a man who is drunk. 



Experiment LX. 



August 29th, 1873. A cannula was placed in the trachea of a cat about 

 5.30 P.M. 



5.35. One decigram of dried cobra-poison, dissolved in two cubic centi- 

 metres of water, was injected into the peritoneal cavity. 



5.39. The animal lies on its side breathing very rapidly and wagging 

 its tail. Eises, sits with head erect and mouth widely open. 



5.45. The respiratory movements are very rapid and shallow, with 

 occasional deep ones. The animal sits up. Respirations 240 per minute. 

 Pulse 148 per minute. 



6.3. The animal was lying down and occasionally rising. Is now lying 

 down. The respiratory movements have an extraordinary vermicular 

 character. Dr. Sanderson ascertained by palpation that this is due to 

 the diaphragm contracting before the thoracic walls expand. 



6.7. The respirations are feeble, with occasional deep ones. The cat 

 walks quite well. The bowels act. 



6.20. Bowels act again. Tries to vomit several times. 



6.37. The cat lay on its side, and stretched itself once or twice in a 

 sort of convulsive manner. 



6.41. Lies quietly. When the cornea is touched or poked with a 

 pointed instrument, or when the finger is rubbed over it, the eyelids do 

 not close, nor does the animal give any sign of feeling. When the hind 

 legs are struck, it moves its fore legs very faintly. Respiration is quite 

 regular and apparently normal. The end of the tail gently moves from 

 side to side. When the inside of the ear is tickled the animal shakes its 

 head. It took a deep breath, and moved its head voluntarily. The pupil 

 is much contracted. When the arms are irritated by a sharp stick the 

 animal draws its body slightly together. A minute or two afterwards it 

 moved its tail from side to side several times voluntarily. The animal 

 was lying on its side. Lifted it up and laid it on its belly with its feet 

 under it. It rose up and walked several steps. 



6*45. The cat again rises and walks, but staggeringly. It then falls 

 and lies on its side. The hind legs seem to be weaker than the fore legs. 



VOL. XXII. K 



