( 2i?8 ) 
ed t Which being a cafe fo very odc!,and never (rhat I hare 
ever met with) taken notice ot betore, I have i lought ic a 
part of my Duty I owe to this ingenious and learned Societjy 
to acquaint you with it 5 hoping it may give fome lucky 
hint to fome Ingenious Perfon, for the better; difcovery of 
that intricate fubjeift, concerning the Nature of Magnetick 
Bodies. 
VlL Farther Obferyatms and ^mark^ on tht Jame 
Subjdi. 
¥ Lately gave the Society an account of the Dejirti&ion 
§ of the Magnetick Virtue in a touched piece of Iron Wire, 
by Bending^ or Coyling round : Which I thought had been 
a Novelty. But by looking over more accurately what 
others have written of Magnetick», I find in Grimddi de 
Lumine and Colore^ that he, and in our Fhil. Tranfa^ions^ 
N, 188, that Mr de U Hin had hit upon the fame difco- 
very before me. Howevc^^ they having not profecuted 
their Difcovery fo far as I did, and my account contain- 
ing divers things not taken' notice of by them, I hope 
what I fent the Society was not unacceptable. 
And indeed it is very happy for me that I have the Au- 
thority of fo Ingenious Perfons on my fide, becaufe the 
Experiment not fucceeding in fome tryals fince, I have had 
reafon to fear left the Society might call ray Integrity in 
qtteftion. 
The matter of faft was thus, and to me furprizing ! I 
touched and coyled feveral Iron Wires, but the effed that 
cnfued was not fuch as I told the Society. The Verticity 
was indeed much weakened, but not totally deftroycd , , 
and the ends ot the Wires would be attrafted or repelled 
by 
