E 99 1 
on the under Surface. The other Scale needs no 
Alteration, provided the Strings be made of Silk, as 
ufual, and ftiort enough to keep that Scale out of the 
Reach of the eledric Virtue, which is to ad upon 
the former. If the Beam were three or four Feet 
long, the Strings of both Scales might be of a Length, 
which would make it lefs troublefome to put in and 
take out Weights. 
I mounted the attrading Bodies upon fmall taper 
Sticks about two Feet and an half long, whofe thicker 
Ends had a Foot which flood upon two Cakes of 
Bees- Wax full io Inches thick in all. 
I forbear to defcribe the pretty little Ample Inftra^ 
ment you furnifhed me with at my firft fetting out; 
I leave that to yourfelf j only, as it has no Name, I 
take the Liberty to call it An Electrical Needle . 
Every body, who delights in fuch Matters, will thank 
you for it, if it were only for the Amufement it will 
furnifh for fo many Hours, after being but once well 
feafoned or tindured with eledrical Effluvia. 
But, I think, this little Inftrument, and the Balance 
together, cannot fail of informing us farther concern- 
ing the Properties of Eledricity : Such as, how far it 
agrees and difagrees with Magnerifm ; whether it 
paffes through the Subftance,or only along the Surface 
of Bodies ; whether it proceeds in any, and what, par- 
ticular Diredion, or has any particular Tendency $ in 
what particular Bodies the moft of it may be collected 
and retained 5 and how long ; how far the Figure, 
Size, DenAty, or Colour of Bodies may be concerned ; 
whether, as thefe Effluvia may be felt, heard and 
£een, they may likewife be weighed $ and many other 
Matters, which will occur to the diligent Obferver. 
Tour humble Servant . 
4 III. 
