I 72 3 
feffcd of much lefs activity than the opium 
in fubftance, and frequently has not done 
any injury to the parts on which it has 
been applied. 
The life of the nerves being, as we 
have before obferved, more particularly 
inherent in their extremities than in their 
origin, it became neceffary to afeertain 
what effects opium would produce upon 
them. 
Experiment LIII. 
I Gripped the tibia of its mufcles, fo as 
to have it in my power to apply to the 
large nerves which run along the edge of 
this bone, a quantity of opium. To the 
end that it might come into exadt contact 
with them, I pinched it and them a little 
between my fingers ; five minutes after¬ 
wards I made life of the common exciting 
procefs, and to ray no fmall aflonifliment, 
was not able to procure the fmalleft move¬ 
ment in the limb. 
Experi 
