£ 49 2 1 
a Wire, which was a Mile in Length. Thefe Wires 
were to be fo difpofed, that this Obferver being 
placed upon the Floor of the Room near the elec- 
trical Machine, the other Obfervcrs might be able 
in the fame View to fee the Exploiion of the charged 
Phial, and the Obferver holding the Wires $ and 
might take notice of the Time lapfed between the 
diicharging the Phial and the convulfive Motions of 
the Arms of the Obferver in confcquence thereof; 
inafmuch as this Time would fhew the Velocity of 
Ele&ricity, through a Space equal to the Length of 
the Wire between the coated Phial and this Ob- 
ferver. 
The ele&rifying Machine was placed in the fame 
Houfe as it was laft Year. We then found ourfelves 
greatly embaralfed by the Wire’s being conduced 
by the Side of the Road, which we were compell’d 
to, on account of the Space neceffary for the mea- 
furing of Sound : But fo great a Diftance from the 
Machine was not now wanted, though the Circuit 
through the Wire was intended to be at lead two 
Miles. We had difeover’d, by our former Experi- 
ments, that the only Caution now necefiary was, 
that the Wires conduced upon dry Sticks (hould 
not touch the Ground, each other, or any Non- 
elp&ric, in a confiderabie Degree, in any Part of 
their Length : If they did not touch each other, the 
Returns of the Wire, be they ever fo frequent, im- 
ported little, as the Wire had been found to con- 
duct Ele&ricity fo much better than the Sticks. It 
was therefore thought proper to place thefe Sticks 
in a Field fifty Yards diftant from the Machine. 
The Length of this Field being eleven Chains, or 
726 Feet, eight Returns of the Wire from the Top 
to 
