Mr. cavallo’s 
40S 
be attracted at the; diftance of two inches and one-fifth ; 
and when at 35?, it will be attracted at the diftance of 
three inches. ^ This being prcmifed, I come now to the 
narration of the experiment. 
October the .1 Sth^.after having rained a great deal in 
the morning and night before, the weather grew a little 
clear in the afternoon, the clouds appearing feparated and 
pretty well defined ; the wind was Weft, and rather 
ftrong, and the atmofphere in a temperate degree of heat. 
In thefe circumftances, at three o’clock in the afternoon, 
I railed a final 1 electrical kite, which meafured three feet 
nine inches in length, and three feet in breadth, giving to 
it 360 feet of wired firing. The angle that the firing, or 
rather the cord of the incurvated firing, generally made 
with the horizon, was near 6o°, and, in confequence, the 
kite’s perpendicular height was about 310 feet. After 
the end of the firing had been infulated with a filk lace, 
and a leathern ball covered with tin-foil had been hanged 
to it, I tried the power and quality of the electricity, and 
found it pofitive and pretty ftrong; in a little time a fmall 
cloud palling over, the electricity increafed a little ; but the 
cloud being gone, it decreafed again to its former degree. 
The firing of the kite now was fattened by the filk lace 
to a poft in the yard of the houfe where I live, which is 
fituated near Idington; and I was amufing rnyfelf and 
fome other perl'ons with charging two coated phials, and 
giving fcveral fiiocks with them. While I was fo doing, 
the electricity, ftill pofitive, began to decreafe ; and in two 
or three minutes time it was fo weak, that it could be 
hardly 
