f r 43 ] 
portunity of making the fame obfer vat tori 
on the ftomach, inteftines, &c. and others 
have fince repeated this experiment after - 
me. 
Artificial electricity cannot excite the 
irritability of thefe parts j at leaft, I have 
not yet fucceeded, either by means of 
weak or ftrong charges, or fparks, or a 
current, the power of which I regulated 
either by varying the quantity, or by 
making life of good or bad conductors. 
Volta made feveral of thefe experiments 
before I did, and with a fimilar refult. 
But from hence we ought not to infer, 
that eleCtricity is not the caufe of the mo¬ 
tion of the heart, ftomach, inteftines, &c. 
Let us recall to our recollection, that the 
fimple approximation of the coats of the 
nerves, under certain circumftances, de- 
ftroys the aCtion both of native and artifi¬ 
cial eleCtricity. If the nerves of the organs, 
of which the operations are fpontaneous* 
are 
