( *p> ) 
When I covered the Anvil with a Piece of Woollen 
Cloth, and the End of the Iron Bar with a Piece of 
Shamoy Leather, it gave no Vertue to the Steel j then 
covering only the Bar, and leaving theAnvil uncovered, 
it gave not any Vertue that way neither: But covering 
the Anvil, and leaving the Bar uncovered, it gave the 
full Vertue, 
I have tried whether my Vice had any fixed Pole by 
{landing long in one Pofition, but I found it had not. 
I have tried to do this with an Anvil of about 30 16 
Weight, being fixed in Wood ; but could not come up 
to the other Proofs. 
I believe if one took an Iron Bar of three Inches 
fquare, and 10 or more Feet long, or feveral of them 
upon each other, and a fuitable Piece or Bar of Iron to 
rub withal, and giving the under Part of the Handing 
Bar the Figure aforefaid, reprefented by B, it might 
be brought to a vaft Strength. ; N. B. The Steel for 
the Needles is always of a Spring-Temper. 
I have made two Pieces of lion, at one End \ of an 
Inch, and fo Taper to 4 of an Inch fquare each [the 
Length was not mentioned ) and fixed thefe two Pieces 
of Iron to a Piece of Wood in the Shape of an armed 
Loadftone, at about 8 Inches one from the other, ap- 
plying to the under Part of thel’e Irons, or Legs, a 
Piece of Iron with a Hook to it, as to an armed Load- 
ftone. I hung this armed Piece of Wood with each 
Leg over an Iron Bar (at a Diftance that fomething 
might hang between them) then placed the Piece of 
Iron with the Hook to it to the two Feet, arid I found 
it to draw veryftrongly ; but my Trial was but with 
fmallTools. I fuppofe if one did this in a larger Pro- 
portion, I doubt not but it would have a great Eftecf. 
Having. 
