( *3 ) 
End of the Whale-bone was fixed a Ball of Cork of 
about an Inch and quarter Diameter ; then the great End 
of the Rod being inferted in the Tube, the Leaf-Brafs 
laid on the Table, and the Tube excited, the Ball at- 
traded the Leaf-Brafs to the Might of about three 
Inches by Eftimation. With feveral Pieces of Spanifi 
Cane and Fir-Sticks lafterwards made a Rod, which, to- 
gether with the Tube, was fomewhat more than eighteen 
Feet long, which was the greateft Length I could con- 
veniently ufe in my Chamber, and found the Attracti- 
on very nearly, if not altogether as ftrong, as when the 
Ball was placed on Ihorter Rods. Thus far I proceed- 
ed before I went into the Country, which I did the 
zd of May , 1719, taking with me feveral Glafs Canes,, 
and fuch othfr Materials 1 thought would be neceffary, 
and could not well be procured there. I (hall now 
give an Account of the Experiments I then made, fome 
of which were made at Norton-Court near Fever - 
jhamxn Kent , at my honoured Friend’s John God - 
frey's, Efq-, the other at Otterden-Place , at my ho- 
noured Friend’s Gr anvil WhelePs, Efq:,' a worthy 
Member of the Royal Socitty, with whom I have had 
the Honour to be lately acquainted. 1 lhall fet down 
each Experiment in the Order of the Time and Place 
they were made, as I find it in my Notes. 
The firft Experiment was made at Norton-Court, 
May 14th, 1719, between fix and feven o’Clock in 
the Evening. Having provided a Rod of about twenty- 
four Feet, that confifted of a Fir-Pole, of Cane, and 
the Top of Reed, upon the End of which the Ball of 
Cork was placed, and the great End of the Rod put 
into the Tube about feven or eight Inches: then the 
Leaf- 
