[ 495 ] 
tom ; and being condu&ed thus from the Bottom of 
the Field to the Top, and from the Top to the Bot- 
tom feven other times, returned again into the Room 
and was held in one Hand of an Obferver near the 
Machine. From the other Hand ot this Obferver, 
another Wire, of the fame Length with the former, 
" was conducted in the fame manner, and returned into 
the Room, and was faften’d to the iron Rod with 
which the Explofion was made. The whole Length 
of the Wires, allowing ten Yards for their Turns 
round the Sticks, amounted to two Miles a Quarter 
and fix Chains, or 12276 Feet. 
As the Night preceding thefe Experiments had 
been very rainy, Care was taken, by filk Lines pro- 
perly difpofcd, that the Wires in their Paflagc from 
the Window of the Houfe might not touch the 
Wood thereof ; left, from the Moifture of this Wood, 
the electrical Circuit might be fhortened. 
When all Parrs of the Apparatus were properly 
difpofed, fevcral Explofions of the charged Phial 
were made j and it was invariably feen, that the 
Obferver holding in each Hand one of the Extre- 
mities of thefe Wires was convulfed in both his 
Arms in the Infant of making the Explofions. 
Inftcad of one, four Men were then placed hold- 
ing each other by the Hand near the Machine, the 
ftrft of which held in his right Hand one Extre- 
mity of the Wire, and the laft Man the other in 
his left. They were all feen convulfed in the In- 
fant of the Explofion. Every one who felt it, com- 
plained of the Severity of the Shock. 
It was then defired, by one of t he Gentlemen 
concerned, that an Explofion fhould be made with 
the Obferver holding only one of the Wires. This 
was 
