[ 6<5z ] 
trie, and conveyed the Electricity to the Ball as 
ftrongly as the Packthread had done. 
Experiment II. 
The Tube being well dried, I applied a Silk in the 
lame manner as I had done the Packthread j but no 
Electricity could be conveyed to the Ball by applying 
the rubbed Tube to the contrary End of the Silk. But 
afterwards, having wetted the Silk, it became a Non- 
electric, and received the EleCtricity, which it com- 
municated to the Ball. 
N-B. I chofe a glafs Tube for this Experiment, 
becaufe Mr. T)u Fay had made ufe of glafs Tubes for 
the Supporters of his Conductors of Electricity ; and 
Silk, becaufe Mr. Gray had fupported his Conductors 
of Electricity upon Silk. 
2. An Account offome Experiments made before the 
Royal Society, on Thurfday, May the 2 &th, 
i74i- 
HPH AT it is not the Quantity of Matter in Bodies, 
that makes them more or lefs receptive of Elec- 
tricity, and conductive of it, but intirely their Qua- 
lity, appears by the following Experiments. 
Experiment I. Fig. 1. 
From a Cat- gut String A B, about 12 Foot long, 
flretched horizontally Six Foot above the Floor of 
the Room, 1 fufpended Two Iron Bars CE), E F, 
of about 40 Inches long,' and a Quarter of an Inch 
fquare, by the filken Strings Cc , E) d, E e> Ffi which 
at firlt touched at their Ends®, E and from the End 
F of the Bar E F , there hung, by a Packthread, the 
ivory Ball G. Then having rubbed a large Tube IK 
to 
