C 211 ] 
particular upon epilepfy. Some author 
has denied the laft fad, limply becaufe he 
was incapable of comprehending how it 
could take place, but this is a very indif¬ 
ferent reafon. 
The influence of the moon upon our 
globe, or rather the reciprocal influence of 
the two planets, is manifefted by the flux 
and reflux of the waters of the ocean. 
If eledricity be not the caufe of this 
phenomenon, at leaft it does not take place 
without this principle being put into ac¬ 
tion ; and how is it poflible that man can 
avoid participating in thefe revolutions, 
who is himfelf an eledrical machine, 
and who receives this matter from the air 
he breathes and moves in, and from the 
ground on which he treads ? 
The disorders of which we are fpeak- 
ing are not excited every time a caufe 
is prefent, and frequently they occur with¬ 
out their caufe being known. 
P 2 
We 
