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aBions^ N° 431. 5 tis no fmall Satisfaction _ to me, 
that ray Electrical Difcoveries have not only been 
confirmed by fo judicious a Philofopher as Mr. Du- 
fay ; but that he has made feveral new ones of his 
own, more efpecially that important luciferous one, 
which put me upon making the Experiments I am 
now going to relate* 
I (hall firft give fome Account of the Experiments 
made the \di{\ Springs foon after I received* the Tranf- 
lation of Mr. Dufay s Letter; then of thofe we made 
at ray honoured Friend’s, Granvilt JVheler , Efq; 
F.R.S. in the Months of July and Auguft ; and laftiy 
proceed to thofe I have made fince my Return to Lon* 
don , which was in September laft. 
As I had not any (ilk Lines by me ftrong enough 
to bear the Boy, 1 caufed him to hand on fome of 
the Electric Bodies ; and, as I concluded, found the Ef- 
fect the fame as mentioned by Mr, Dufay. I fliall not 
need to mention the Particulars of th^Experim-ent, 
but proceed to thofe that were fuggefted to me upon 
Mr. Dufay s faying, that thefe Snappings or Sparks 
are not excited, if a Piece of Wood, or any other Sub* 
fiance than a living Body, be palled over the Perfon 
fufpended on the Lines, unlefs it be a Piece of Me- 
tal : From thence I concluded, that if 1 fufpended the 
Metal upon (ilk Lines, or laid it upon any of the E- 
lectric Bodies, the Effect mult be the fame, when the 
Metal had been made Electrical by the Tube, and 
the Hand of any one was held" near it, and found it 
fucceeded accordingly. I began firft with fome com- 
mon Utenlils that were at Hand, fuch as the Iron 
Poker, Tongs, and Fire Shovel ; any of thefe being 
fufpended upon Lines of the largeft fewing Silk then 
C the 
