[ 35 ° ] 
LIII. Electrical Experiments , with an At- 
tempt to account for their feveral Phceno- 
mena ; together with fome Obfervations on 
Thunder-Clouds, by John Canton, M. A. 
and F. R. S, 
Read Dec. 6, 
> 753 - 
Experime?it r. 
F ROM the deling, or any convenient 
part of a room, let two cork-balls, 
each about the bignefs of a fmall pea, be fufpended 
by linen threads of eight or nine inches in length, fo 
as to be in contadt with each other. Bring the ex- 
cited glafs tube under the balls, and they will be fe- 
parated by it, when held at the diftance of three or 
four feet ; let it be brought nearer, and they will 
hand farther apart ; intirely withdraw it, and they will 
immediately come together. This experiment may 
be made with very fmall brafs balls hung by fiver 
wire; and will fucceed as well with fealing-wax made 
eledtrical, as with glafs. 
Experiment 2. 
If two cork-balls be fufpended by dry filk threads, 
the excited tube mull be brought within eighteen 
inches before they will repel each other ; which 
they will continue to do, for fome time, after the 
tube is taken away. 
As the balls in the firft experiment are not in fl- 
oated, they cannot properly be faid to be eledlrified : 
but when they hang within the atmofphere of the 
excited 
