( 5x8 ) 
I commonly refled at the End of each Bar in drawing 
(as in the (ingle Bar before mentioned, Pag. 
When I found thofe on the Board conhderably flronger 
than my armed one, I took out that which I thought 
attradled bcfl, and bound the Armour to it, putting 
the other in its Room. After fever al repeated Touch- 
ings, the biggefl of them being ibiij Avoirdupoisy 
would be fufpended by its North Pole to the 
South Pole of one of the beft of the others. 
They did not lift one another, or attrad fo well 
when their Ends were applied centrally, as 
when applied to one another (as is exprelTed 
in the Figure) near to their oppolite Corners. 
The Line m in the End of each Bar reprefents 
the Manner! ufed to mark their intended South 
Poles. With oneof thefc armed, I touched a 
fmall fquare Bar of Steel (placed betwixt two 
of the great ones) the Length whereof was 
X.M6 Inches, the Breadth of each Side 0.27 
(or fo me what more than ^ of an Inch) the 
Weight 3v Gr.iv (/. e. 304 Grains) it would 
lift afterwards an Iron 5 i Inches long, weighing siv 
3j 2,000 Gr. 304 can be had 6.578 times in 
2000. So it lifted above 6i times its own Weight. 
With this little Bar naked I touched a fmall Dial- 
Needle made of Steel ( the Socket in the Middle was 
slfo Steel, and not Brafs, as ufual) I feafoned it very 
hard, and cleanfed it well, and with much Care, not 
to break it, becaufe fo hard. It weighs not full 4 
Grains, has lifted two prepared Six-penny Nails, one 
at each End, while it was held in an horizontal Po- 
flure with its South Pole towards the North. It 
alfo lifted a Key by the Bow, as it was held perpen- 
dicularly 
