Advantage of elevated pointed Conductors, 851 
an axis, it was then fufpended by this axis between two 
wooden pillars: in this wooden tube was a brafs rod, 
which was moveable, fo that a ball or point fixed on it 
could be raifed to the height required. 
EXPERIMENT XXV. 
A ball of one inch and three tenths diameter was 
fixed to the under part of the artificial cloud at k, and 
then this apparatus was placed under it with a point, the 
fwinging rod was held down to the floor, as in fig. 8, 
and the point covered: then the artificial cloud was 
charged by a certain number of turns of the glafs cylin- 
der ; the fwinging rod with the point was then let go, 
and paffed fwiftly and very near to the ball under the ar- 
tificial cloud at k. This was repeated feveral times, re- 
moving the point lower each time till the greatefl fink- 
ing diftance to the point was found, which was generally 
one inch and fix tenths. 
EXPERIMENT XXVI. 
The point being removed, a ball of three tenths dia- 
meter was placed in its ftead and tried, as the point in 
the preceding experiment; the ftriking difiance was ge- 
nerally found to be two inches and one tenth. 
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