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augments the natural evaporation of liquors, unlefs 
thofe of a vifeous kina, as oil of olives, which from 
their tenacity lofe nothing of their weight. 2. That 
electricity increafes the evaporation of liquors in pro- 
portion as they are more or Ids volatile : for volatile 
fpirit of fal ammoniac fuffered a greater evaporation, 
than either fpirit of wine or fpirit of turpentine. 
Thefe laft loft more than water, and even this loft 
more than the folution of nitre and the vinegar, as 
we fee by the experiments. 3. That electricity ope- 
rates moft in thofe veftels, which are moft permeable 
to its effluvia, viz. in veftels of metal more than 
thofe of glafs. f. That the effects of eledtrifing are 
not obferved in veftels clofely flopped. 
He afterwards put to the trial feveral fubftances- 
of a more folid form. A pear weighing four ounces 
and a half, eleCtrifed five hours, loft of its weight 
6 grains. A pear of the fame kind, not eleChifed, 
loft nothing : fo that the difference arifing from elec- 
trification was 6 grains. He then fubjefted other 
fubftances to this trial, and the effects, were as fol- 
low. 
Grains. 
A piece of dry oak loft . . . o 
A bunch of keys . . . . o 
Two -new- laid eggs . , . ij 
A piece of new crum of bread . . iij 
— raw beef . * . . . iij 
— — fait beef . . . iv 
* fj'onge lightly moiften’d . . vi 
A bunch of grapes . . . vij 
From 
