C 89 ] 
direded itfelf from the Mouth of the Glafs to the 
Coating, might objed, if the Wire from the fhortiron 
Rod to the Obferver was only half the Length of 
that between the Obferver and the Coating of the 
Glafs, that the Eledricity, in the Time found, patted 
only through the fhort Wire } and vice verfa. But 
if, as it was here thought proper, the Obferver was 
placed in the Centre of the conducing Wire, let 
the Diredion of the Eledricity be what it would, 
no Difference could happen in the Pvefult cf the Ex- 
periments, if made with the neceffary Caution ; be- 
caufe, if the Effeds in the Middle and both Ends of 
the Wires were inftantaneous, the Conclufion there- 
from would be very obvious. 
To make the Experiment, the fame Phial filled 
with Filings of Iron, and coated with Sheet-Lead, 
which was ufed laft Year, was placed in the Win- 
dow of the Room near the Machine, and was con- 
neded to the prime Condudor by a Piece of Wire. 
To the Coating of this Phial a Wire was fattened, 
which, being conduded upon dry Sticks to the be- 
fore-mentioned Field, was carried in like manner to 
the Bottom, and being conduded thus from the 
Bottom of the Field to the Top, and from the Top 
to the Bottom feven other times, returned again 
into the Room, and was held in one Hand of an 
Obferver near the Machine. From the other Hand 
of this Obferver, another Wire of the fame Length 
with the former was conduded in the fame manner, 
and returned into the Room, and was fatten’d to 
the iron Rod with which the Explofion was made. 
The whole Length of thefe Wires, allowing ten 
M Yards 
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