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X. Experiments and Obfervations on the Gymnotus Elec- 
triciis, or EleBrical Eel, By Hugh Williamfon, M.D, 
Communicated by John Walfli, Efq, F, R. S. 
TO JOHN WALSH, ESQ^ 
SIR, London Feb. 7, 1775, 
Redde, Feb. 9, A g eledtrical eel has lately engaged 
^ the public attention, and yours in par- 
ticular, I have taken the liberty of fending you fome 
experiments which I made on that filli: they are the 
fame that I had the pleafure of fliewing you laid winter, 
on my arrival from Penfylvania. If you apprehend they 
may tend to call any light on that curious part of natu- 
ral hiftory, or to gratify the curiofity of the public, be 
pleafed to make any ufe of them you may think proper. 
Belides my own fuperficial acquaintance with the fub- 
jedt of eledlricity, of which I am very confcious, there 
are other circumftances that may help to apologize for 
the imperfedl Hate in which thefe experiments appear. 
The eel being lickened by the change of climate, its 
owner refufed to let us take it out of the water, for the 
purpofe of making experiments, on reafonable terms ; 
and there were many experiments which I could not 
make 
