C 3+6 ] 
Tliis treatife, from its title, promifes only an ac- 
count of the advantages of eledritation in medicine : 
but this is not the whole of which it treats ; it exhi- 
bits alio a feries of obfervations of the effeds of elec- 
tricity upon both folid and fluid bodies, upon animals 
in a ftate of health, as well as upon thofe diftemper’d. 
Of each of thefe I propofe to lay before you fome 
account in the courfe of this extrad. 
Our author firfl takes notice, that eledricity, being 
continued for fome hours, leflens the weight of the 
body eledrified. He exemplifies this firfl: on fluid 
bodies ; two equal portions of which, before elec- 
trizing, he accurately weighs ; and then the difference 
between thefe two portions, one of which has been 
eledrifed between four and five hours, and the other, 
though in the fame room, not eledrifed at all, is at- 
tributed to the operation of the eledric effluvia. His 
globes, I obi'erve, are rubbed by the hands of an 
afliffant. 
Four ounces of river water expofed in a glafs vef- 
fel of four inches diameter were eledrifed five hours, 
and loft in their weight eight grains. 
Four ounces of river water, in the fame kind of 
glaflj but not eledrifed, loft in the fame time only 
three grains. The difference then to be attributed 
to the eledricity was five grains. The like quanti- 
ties of the fluids hereafter mentioned were expofed, 
as the water was, and the effeds were as follow. 
Oil of olives, by eledrifing, loft 
Grains 
. o 
Vinegar .... 
• .!> 
Water impregnated with nitre 
• hj- 
New milk . 
. iv. 
Urine 
