C » 9 1 
E X p E R I M E N T s ma 3 e at the Kh 
Society, Feb/p. 1737-8. 
I fixed fix Iron Radii of tv/ifted Iron Wire to a 
Brafs Ring of two Foot and an half Diameter, and half 
an Inch wide, which had a Spcket in the Centre, 
whereby to fet it either on an upright Glafs Tube, or 
on a wooden Pillar : Then I hung upon the End of 
the fix Radii, next to the Circumference, the fol- 
lowing Subftances. i. A, Piece, of Refin. 2. A 
Stick of Wax. 3. An Apple. 4. An Ivory Ball. 
5. A Steel Ball. 6 . A Glafs Ball. 
Experiments I. and II. • : 
I rubb'd the Tube, and applied it to the Centre of 
this Machine, as it flood on a Glafs Tube? and the 
Electricity. was communicated to all the fufpended 
Bodies, and the Ring alfo j but none of them receiv’d 
it, when the Machine flood upon a wooden Pillar, 
whofe Foot was on the Floor. 
Experiment III. 
I tied to the Ends of the fix Radii as many Cat* gut 
Strings, but fo long as to unite together about a 
Foot higher than the Centre of the Ring, where I 
fufpended them by another Cat-gut String three Foot 
long, the Top of which was faflen’d to an hempen 
Rope. Then applying the rubb’d Tube very near 
the Place where all the Cat-gut Strings join’d over the 
Ring, (at which Ring the fame Bodies were fufpended 
as 
