( 41 ) 
the crofs Lines thirteen times ; then the Leaf-Brafs be- 
ing laid under the Ball, upon one of the fmall Stands, 
and the Tube excited, the Ball attracted and repelled 
to the Hight of one of its Diameters, which was about 
an Inch and a quarter. 
I have, by feveral Trials lately made, found that 
rubbing the Tube, and putting it up between the Re* 
turns of the Line in feveral Places, before I go with 
the Tube to the End of the Line, much facilitates, and 
caufes the Attradion much fooner than when one ftands 
with the Tube and applies it to the End of the Line 
only. 
About the middle of July I went into the Count ry y 
and Auguft i, at Mr. Whelerfr, we made the fol- 
lowing Experiment ; being an Attempt to fee how 
far the Electrick Vertue might be carried forward 
in a Line , without touching the- fame. 
This Experiment was made by carrying the Line 
out of the Great Parlour Window into the Garden, 
and down the great Field before it. The Line was 
fupported by fifteen Pair of Poles ; each Pair had a 
Line of blue Silk tied from one Pole to the.other, the 
Length of about four Feet, equal to the Diftance of 
the two Poles : About ten Feet from the Window 
therg was a Silk Line put up crofs the Room, upon 
which that Part of the Line hung that had the Ivory 
Ball upon it. Below the crofs Line of the fartheft Pair 
of Poles was placed another crofs Line, four Feet from 
the Ground, to which was fattened- the other End of 
the communicating Line, as mentioned in the Experi- 
ment above : Then the Leaf-Brafs and Tube being pre- 
F z pared 
