[ 6 3 ] 
tion'd being about Boo Feet by Land, and 2000 by 
Water, in order if poffible to determine the Dif- 
ference of the Strength of the Ele&ricity felt there, 
and at the Stone-Bridge at Wejiminjier ; the Differ- 
ence of the Length of the 2 Circuits being about 
400 Feet in Favour of that of the new River. 
To make the Experiment, an iron Wire was 
fattened to the Coating of the glafs Phial before- 
mention'd, and conducted from one of the Win- 
dows of the Room over the new River without 
touching the Water; and from thence to B, laying 
in its whole Length upon the Grafs in the Meadows, 
except where it patted over a Hedge. At B , when 
the Explofton was to be made, one or more Ob- 
fervers were to take the Extremity of this Wire in 
one Hand, and touch the Water of the River as 
before with an iron Rod held in the other. Another 
Wire was let down from the other Window of the 
Room; one Extremity of which was joined to the 
fhort iron Rod mention'd in the former Experi- 
ments, the other was held in the Hand of an Ob- 
ferver at A, whofe other Hand held an iron Rod 
dipp'd into the River. 
It was abfolutely neceflary that thefe Wires 
fhould touch each other in no Part of their Length.* 
C 1 
other wife the before- mention'd Circuit would upon 
the Explofton be completed from their fir ft Contact. 
When every thing was thus dilpoted, and the 
Signals given, the charged Phial was exploded eight 
times, and the electrical Commotion every time 
fmartly felt by the Obfervers both at A and B. 
. Whether the Line of Obfervers at B confided of 
one or more, they were always (truck, and that 
more fharply than at IVefiminfter -Bridge under the 
lame 
