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\ 
had not felt the force of the opium, being 
again fubmitted to its adtion for half an 
hour, was no longer in a hate of moving. 
By many experiments, I have lince been 
taught, that frequently half an hour, and 
in fome inhances a longer time was requi- 
hte for the deftrudtion of vitality. 
Experiment LVIII. 
•In addition to the above, I made alfo 
ligatures in the extremities of the nerves, 
but without any difference enfuing. Nei¬ 
ther could I find any when I cut them. It 
appears, therefore, that opium does not de- 
ftroy all at once the life of the portion of 
nerve with which it is in contadt, but that 
it affedts it in a fpecific manner, and that 
this affedtion extends as far as the fource 
of the reft of the nerves, or to fpeak with 
more propriety, as far as the fpine. This 
is a moft interefting fadt, and may become 
very ufeful in. the hands of medical prac¬ 
titioners, The 
I 
