48 EFFECTS OF 



EXPERIMENT IX. 



An ounce of very strong infusion of tobacco 

 was injected into the rectum of a cat. Symp- 

 toms were produced similar to those which 

 occurred in the last experiment, and the animal 

 died at the end of seven minutes from the time 

 of the injection. On opening the thorax imme- 

 diately after death, the heart was found ex- 

 tremely distended, and to have entirely ceased 

 acting, with the exception of a slight tremulous 

 motion of the auricles. 



EXPERIMENT X. 



Three ounces of infusion of tobacco were in- 

 jected into the rectum of a dog. He was affected 

 with symptoms similar to those in the former 

 experiments, and died at the end of 10 minutes. 

 On opening the thorax immediately after death, 

 I found the heart much distended, and to have 

 entirely ceased contracting. 



EXPERIMENT XI. 



Three ounces of infusion of tobacco were in- 

 jected into the rectum of a dog. Immediately 

 there took place tremulous contractions of the 

 voluntary muscles. Five minutes afterwards 

 the injection was repeated in the same quantity. 

 The dog then was sick and threw up some of the 

 infusion, with other matter, from the stomach ; 

 he became faint, and died 10 minutes after the 

 second injection. Immediately after respiration 

 had ceased, I opened the thorax, and found the 



