[ 2 7 3 
but without fuccefs. A fecond coating has 
been found to be a very proper means of 
exciting the vitality of the animal parts, 
when it is languid and about to difappear. 
It is obvious, that this double coating is 
a means equally well fuited to increafe the 
mufcular power in prepared animals, ftill 
in poffeflion of the greateft part of their 
vital principle. As I was one day repeat¬ 
ing this experiment upon frogs, after 
having taken off, and re-applied feveral 
times, the coating of the mufcles, to ob- 
ferve the difference, I was flruck with the 
idea of removing the coating from the 
nerves, and leaving that of the mufcles, 
which happened to be a piece of fiver 
coin j I then palfed one end of a metal 
conductor under the nerves, and with the 
other touched the piece of money. As 
Profeffor Galvani had affected, that in 
this cafe, the movements did not occur, 
or at moft were feeble and infrequent ; I 
was 
