( 11 ) 
repeating its Attraftions and Repulfions for many Times 
together : I then fixed the Ball on longer Sticks, firfl 
upon one of eight Inches, and afterwards upon one of 
twenty-four Inches long, and found the Effed the fame. 
Then I made ufe of firfl Iron, and then Brafs Wire, to 
fix the Ball on, inferring the other End of the Wire in 
the Cork, as before, and found that the Attraction was 
the fame as when the Fir-Sticks were made ufe of, and 
that when the Feather was held over againft any Part 
of the Wire, it was attracted by it ; but though it 
was then nearer the Tube, yet its Attraction was not 
foflrong as that of the Ball. When the Wire of two 
or three Feet long was ufed, its Vibrations, caufed by 
rubbing the Tube, made it fomewhat troublefome to 
be managed : This put me upon thinking, whether if 
the Ball was hung by a Packthread, and fufpended by a 
Loop on the Tube, theEledricity would not be carri- 
ed down the Line to the Ball : I found it to fucceed 
accordingly ^ for upon fufpending the Ball on the Tube 
by a Packthread about three Feet long, when the Tube- 
had been excited by rubbing, the Ivory Ball attraded 
and repelled the Leaf-Brafs, over which it was held, as 
freely as it had done, when it was fufpended on Sticks, 
or Wire; as did alfo a Ball of Cork, and another of 
Lead that weighed one Pound and a quarter. 
After I had found that the feveral Bodies above- 
mentioned had an Eledricity communicated to them, 
I then went on to fee upon what other Bodies the 
Tube would have the fame Effect, beginning witli the 
Metals, fufpending them on the Tube by the Method 
above-mentioned j firfl: in fmall Pieces, as with a Gui- 
nea, a Shilling, a Half-penny, a Piece of Block-Tin, 
a 
