EXPERIMENT WITH SMALL DOSE OF CHLOEAL. 215 



was quite hard, and the septum seemed to have contracted so 

 firmly tliat the apex of the heart had a cleft appearance. Both 

 auricles were moderately filled ; the bladder contained a good 

 deal of urine. During the experiments the muscles of the neck 

 seemed somewhat oedematous. 



Experiment IV. — A young rabbit was narcotised by the sub- 

 cutaneous injection of chloral. The amount seemed insufficient ; 

 and after the animal was placed in the apparatus, the right 

 jugular was exposed for the purpose of injecting some into it. 

 The vein had several irregular branches, one of which was un- 

 fortunately wounded, and the animal lost some blood. The vein 

 was then tied, and the choral injected into the carotid artery. 

 No cannula was placed in the trachea. A thread was passed 

 under the right vagus, but it was not cut. Xo hot-water 

 bottle was placed on the abdomen, but only a piece of cotton 

 wadding. 



Temp. Pulse. 



70 



Eight vagus irritated . • • 30 



7 seconds after 72 



72 

 Yagus irritated •••«•.••• 13 



The animal now awoke, so I removed it from the apparatus 

 and admiuistered a fresh dose of chloral. Unfortunaely, how- 

 ever, I injected it into the abdominal cavity, and the rabbit died 

 in a few minutes. 



Ex-periment V. — A rabbit was chloralised and placed in the 

 apparatus, a cannula put in the trachea, and both vagi exposed. 



