522 Mr . henly’s Experiments , 8ec. 
I have lately feen a very neat apparatus, much fmaller 
than that I have mentioned in this paper, made by Mr. 
nairne, the coated plate of glafs meafuring only three 
inches in diameter. With this apparatus I made the fol- 
lowing experiments. I infulated two of Mr. canton’s 
electrometers, a and b, and having excited the coating 
on the glafs plate, I fet upon it the plate of metal, and 
having permitted it to remain in that iituation about 
half a minute, I raifed it up by the glafs handle, having 
firft preffed it cloiely into contact, and placed it upon the 
ele&roifteter a. The excited electric 1 placed in like 
* , 
manner upon b. The balls of both the electrometers 
diverged confiderably ; thole of a politively, and tholb 
of b negatively. Then, removing the excited plate of 
wax, 8cc. from b, the balls doled, and opened again 
politively, upon the principle already explained in the 
preceding paper. If, inifead of the brafs plate, the plate 
of glafs was excited (that is, the uncoated lide of it), and 
placed upon the electrometer a, the balls were affeCted 
in the very fame manner (differing only in the degree of 
power) as thole I have before mentioned in my experi- 
ments with the excited uncoated plate of glafs; Phil. 
Tranf. vol. LXIV. part n. p. 407. 
A variety of new experiments and obfervations, relative 
to feveral articles mentioned in this paper, and other new 
faCts in electricity, particularly the elcCtricity of choco- 
late, and the reftoration of that property of it, when loft, 
by melting it, with the addition of a fmall quantity of 
olive oil, will be prefented to the Royal Society, as foon as 
the materials are properly digefted and tranfcribed. 
XXXIII. Account 
