3^4 ESSAYS AND OBSERVATIONS 



{Two IriaUy 



I cut all the organs at the pelvis, ex- 

 cept the large nerves that go to the hind 

 extremities. Then I tacked the hind legs 

 by threads to the trunk of the body, to 

 prevent the nerves from being overftretch- 

 ed or tore ; after which I injeded 30 drops 

 pf the folution of opium under the ikin 

 pf both hind extremities. 



Ten minutes thereafter, the hind legs 

 were lefs fenfible and much weakened, 

 and, in a quarter of an hour more, they 

 ■were quite infenfible and motionlefs ; yet 

 the fore part of the body was not obfer- 

 vably affedled fix hours thereafter, and the 

 animal lived till next day. 



R E M A R K. 



Hence we fee that opium deflroys the 

 nervous power of the part to which it is 

 applied, even after the circulation of the 



blood- 



