[ IT 9 ] 
by the Originally -Electrics, and confequently mu ft of 
Neccllity pafs through it. 
§ XXVIII. A Phial of Water, in the Experiment 
of Leyden can be eledrifed, and ni3y be caufed to 
explode, though the Wire, touching the Water in 
the Phial in making that Experiment, be run through 
a \v£x Stopple, exadly fitted to the Mouth of the 
Phial. 
§ XXIX. l caufcd a glafs Tube, open’ at each End, 
and about two Feet and a half long, to be capped 
with Brafs cemented to the Ends of the Tube. In 
the Centre of each of thefe Caps was faftened a 
llendcr brafs Rod 5 and thefe were difpofed fo in 
the Tube as to come within half an Inch of each 
other. When the Tube was properly fufpended in 
fi!k Lines with one of its Extremities near a glafs 
Globe in Motion, the brafs Work at both Ends 
fnapped equally ftrong. As the Eledricity could not 
pafs along the Surface of this Tube warmed and 
wiped clean, this Effed could not have happened, 
unlefs the Eledricity pervaded the Subftance of the 
brafs Caps. Upon touching the Brafs at the End of 
the Tube mod remote from the eledrifying Ma- 
chine, the Snaps from one of the brafs Rods within 
the Tube to the other were feen to correfpond 
with the Snaps without. More Experiments of this 
kind might be added, but thefe, I prefume, are fuf- 
ficient to fhew, that the Eledricity occupies the 
whole Maffesof non-eledric Bodies eledriled. That 
the Eledricity pafies through Originally-Eledrics to a 
certain Thicknefs I took notice of in a Paper I did 
myfelf the Honour to communicate in February 
■ 1745 . 
1 
§ XXX. 
