upon the Leyden Phial. 1 o 1 1 
iron chain flood at 21 and 23, we repeated the experi- 
ment at Mr. Partington’s with a brafs chain, and the 
refult was as follows! 
Ball and point 
the Leyden 
oppofite 
phial. 
Apparatus 
reverfed. 
Electrometer 
- 21 
2 3 
Bail 
- 24 
25 
Point ~ 
- 64 
3 ° 
JAMES LIND. 
TIBERIUS CAVALLOs 
B. WILSON. 
P. S. Having feen a method ufed by Mr. cavallo to re- 
pair broken Leyden phials, fo as to render them again ufe- 
ful for experiments, I am glad of this opportunity to make 
it known, as it may be very acceptable to electricians. 
The method is as follows. When a coated phial is cracked, 
either by a fpontaneous difcharge or by any other acci- 
dent, Mr. cavallo removes the outfide coating from the 
fradtured part, and then makes it moderately hot, by 
holding it to the flame of a candle; and whilft it re- 
mains hot, he applies burning fealing wax to the part, 
fo as to cover the fradture entirely ; taking care that the 
thicknefs of the wax is rather more than the thicknefs of 
the glafs. Laftly, he covers all the fealing wax, and alfo 
6 K 2 part 
