X. Experiments relating to ANIMAL ELectricity. By 
ALEXANDER Monro, M.D. F.R.S. Eptn. Fellow of the 
Royal College of Phyficians, Profeffor of Medicine, Anatomy 
and Surgery in the Univer/ity of Edinburgh, Fellow of the 
Royal Academy of Surgery in Paris, &c. &e. 
[Read Dec. 3. 1792.] 
N the 3d of November laft, Sir James Hatt and Dr Rue - 
THERFORD afked me to repeat with them fome_ experi- 
ments on what has been called Animal Eletricity, which were 
firft performed by Dr Garvan, Profeflor of Anatomy at Bo- 
logna, and of which an account had been communicated by 
Mr Secuin of Paris to Dr Buack, in a letter dated Paris, 
3d Auguft. 
We accordingly, with the help of my affiftant Mr Fyre, re- 
peated them in the following manner: : . 
WE cut a living frog into two parts, a little above the lower 
end of the fpinal marrow. We then put the middle part of a 
bit of tinfoil, about one-tenth of an inch in breadth, and two 
inches long, under the beginning of one of the {ciatic nerves, 
and then doubled the tinfoil over the nerve, that is, we in- 
cluded the nerve in the doubling of the tinfoil. We next 
placed one half-crown filver piece between the table and loins 
of the frog, and another between the table and its leg. We 
then bended a piece of brafs-wire, about the fize of a common 
ftocking- 
