AND ANIMAL LIFE. 239 



was not taken, from the struggles which the attempt occa- 

 sioned. A few minutes after the death of the foregoing 

 rabbit it was on the point of expiring, which induced me 

 to kill it. Temperature 91 1, taken when insensible but 

 not dead. 



Dissection. The lungs were precisely in the same state 

 as in the preceding rabbit ; and also the veins in the tho- 

 racic and abdominal cavities. The stomach was filled with 

 food, of which that portion contained in the large extre- 

 mity appeared to be vegetable quite unchanged ; that part 

 in contact with the mucous surface was more minutely 

 divided than the rest. The contents of the large intestines 

 were natural. The livers in both these rabbits were tuber- 

 culated. The thoracic viscera weighed four drachms and 

 a-half. 



CCLV1I. It had been remarked by HALLER 

 and BICHAT that respiration was extremely dif- 

 ficult in cases in which the par vagum was di- 

 vided ; but we were not aware of the cause of 

 this till the decisive experiments of LEGALLOIS, 

 and those which I have performed, prove, that 

 dyspnoea, impeded or obstructed digestion, 

 enlargement of the heart, congestion and disease 

 of the lungs, distended state of the internal veins, 

 and diminution of temperature, are readily 

 prevented by dividing the trachea, and attaching 

 a tube to it at the time that the nerves are cut. 



CCLVIII. For the purpose of observing with 

 more accuracy the results of the different experi- 

 ments, the rabbits were placed under my own 

 immediate eye, in a room to which they were 



