C S 7 3 
From thefe experiments we find, that cledricity, 
accumulated to a certain degree, puts an end to 
vegetable as well as animal life. 
After having recited thefe experiments, I would 
beg leave to mention a caution, which may be of 
fervice to future eledricians who may ufe large 
batteries. 
It is, never to difcharge their batteries, if it is, 
through a ready condudor, without the charge 
paffes at leaft five feet from the infide of the bat- 
tery to the outfide; by making ufe of this pre- 
caution, which I learnt from experience, I have 
difcharged the beforementioned battery near one 
hundred times, and have never, fince 1 have ufed 
that precaution, broke a finglejar by the eledrical 
difcharge, before which I was continually break- 
ing them, by difcharging the battery in the 
common method. There is another experiment, 
which I would wifh to mention, as it probably 
may give fome light in refped to balls, or points, 
for condudors, for buildings or fhips: the appara- 
tus and manner of trying the experiment, is as 
follows ; in fig. 3. A reprefents the end of the 
large condudor of the eledrical machine; B a 
brafs ball fcrewed into the end of it, of one inch 
and nine tenths diameter; C a fmall condudor, 
which was 5 feet n inches long, and one inch and 
four tenths diameter; it was made of wood, covered 
with tin-foil, and was infulated, by being fupported 
on a ftand, the part D of which was of folid glafs. 
The ball E, at the end of this condudor, was three 
inches diameter, and the ball F one inch and nine 
tenths diameter; under this ball, F, was a Hand, G, 
made of wood covered with tin-foil, which had a 
moveable 
