[ 347 ] 
Urine 
Spirit of turpentine 
Spirit of wine 
V olatile fpirit of fal ammoniac 
Four ounces of .rain-water were expbfed in a tin 
veiTel of four inches in diameter, and eledtrifed as be- 
fore, and the lofs was ten grains. 
A like quantity of the fame water under the fame 
circumftances, eledtriftng excepted, loft only three 
grains. In this inftance, the effedt to be attributed 
to the eledhifing was feven grains. 
He then put to the trial, in a tin veflel inftead of 
a glafs one, the feveral liquors before-mentioned ; 
and except the oil of olives, the water impregnated 
with nitre, and the milk, the reft loft by eledtriftng 
a few grains more of their weight. 
He afterwards expofed three ounces and a half of 
river water in a glafs veflel, whofe diameter was but 
an inch, and this loft by a like eledtrifation only 
two grains. The fame quantity of water, under the 
fame circumftances, eledtrifing excepted, loft in the 
fame time nothing of its weight: fo that, in this 
inftance, the effedt to be attributed to the eledtricity 
was two grains. The various liquors before-mention’d 
were likewife eledtrifed in a veflel of the like capacity 
as that containing the laft water, and they loft much 
lefs by the operation, than when they were expofed 
under a larger furface. All thefe liquors, eledtrifed 
for the fpace of ten hours, as well in veflels of tin, 
as of glafs well flopped, loft nothing of their weight. 
From hence our author concludes, I. That eledricity 
X x 2 augments 
Grains 
vij. 
* vi > 
viij. 
» xi. 
