C ”6 ] 
tricity from other Bodies) are to be obtained from 
the Animal Kingdom : And of thefe only fuch as 
do not partake, from their Manufacture or other- 
wife, of any non-electric Subflanccs. Thofeofthis 
fort, which I have tried, and always with the fame 
Succefs, when perfectly dry, have been Silk (woven 
or not). Velvet, Hair-Cloth, Woollen-Cloth, and 
the dry Skins of Rabbits drefled in their Fur ; and 
the Event has been the fame, whether thefe Sub- 
fiances have been rubbed under a greater or a lets 
Degree of Fridtion : And fcarce any Eledtricity has 
been perceptible, when thofe Parts of thefe Sub- 
fiances, which immediately are in Contadt with the 
Globes, have been rubbed over with dry Chalk, a 
non-eledtric Subfiance. But the Succefs is different, 
when thefe originally-eledhic Subftances have lain 
in damp Places, or have been held over the Steam 
of warm Water; becaufe then the Water imbibed 
by thefe Subflanccs ferves as a Canal of Communi- 
cation to the Eledtricity between the Hands or Cu- 
fhions and the Globes in the fame manner, as the 
Air, replete with \apours in damp Weather, pre- 
vents the Accumulation of Eleftricity in any con- 
siderable Degree, by conducting it as fall as excited to 
the neareft Non -electrics. On the contrary, molt 
Subflanccs of the Vegetable Kingdom, whofe Form 
makes them fit for this Treatment, though made as 
dry as pollible, furnifh Eledtricity, though in dif- 
ferent Quantities. I have tried Hemp, Linen-Cloth 
of various Kinds, Paper both of Linen and Hemp, 
Cotton in the Wool, Fultian, Cotton-Velvet, 
and 
