Advantage of elevated pointed Conductors. 853 
tenths was ufed, the artificial cloud has ftruck, as it 
paired fwiftly, very near to the ball on it, and all the time 
it was removed down to fixteen inches, there being no 
diftance with this one inch and three tenth ball at 
which the artificial cloud left off ftriking., and then be- 
gan again ; but here with the point and three tenth ball 
there were two ftriking diftances, as was before men- 
tioned in the fecond experiments 
This remarkable phenomenon in eleftricity is, I be- 
lieve, new to electricians, and may be. worthy their con- 
fideration.. 
0 B S E R V A T I O' N.. 
In the. twenty-fifth experiment it appears, that the 
point is ftruck by means of, a- fwift motion; and from the 
twenty-lixth experiment, that the ball of three tenths 
was ftruck further than the point; and the ball of one 
inch and. three tenths, in the twenty-feventh experiment, 
at a much greater diftance. than, either, even with the 
fwift motion. 
From thefe experiments I fhould be induced, firft, to 
prefer elevated pointed conductors ; , next to them thofe 
that are pointed, though they project but a little diftance 
above. the higheft part of the building; and after them 
thofe. 
