( ) 
ExpeAation, but how many I am not certain, being fe- 
veral Years fince, and I not heeding it nicely. As I 
held it ere6l, the Bottom was a South Pole, further 
up no Attradion, the Pole changing a little higher (I 
think one third Part of the Bar’s Length) a ftrong 
North Pole, and about f up a ftrong South Pole, and at 
the Top a ftrong North Pole, the Middle between each 
Pole not attrading. Whether the Jarring on the Grind'- 
ing-ftone while held in a wrong Pofture was, as Ifup- 
pofe, the Caufe of this irregular Vertue, or whether 
I might at lirft, by Miftake, touch it the contrary Way, 
I durft not pofitively aifert ^ but all my Care and La* 
hour would not help it by touching: For, as the Ver* 
tue became ftronger in the Ends, fo did alfo the Pola* 
rities in the other Parts of the Bar. I was fomewhat 
concerned at this Difappointment, doubting it muft 
have been new feafoned, which would have created the 
Trouble of cleanfing and poliftiing it the fecond Time. 
I thought firft that 1 would try to cure it by putting 
it over fre(h Wood-Coals in an horizontal Pofture, 
with its intended South Pole direded towards themag- 
netical North, which I did, and fo kept it until it was 
blue. I'hen I took it out of the Fire, and cooled it 
in aimoft the fame Pofture, for I think the North 
Pole thereof was elevated. I tried it without re- 
touching, and found it perfedly cured, the' Po- 
larity regular throughout, and (which I was fur- 
prized at) attraded full fo ftrongly as either of the 
next endeavoured to procure Magnetifm in 
Steel, without the AfTiftance of any Magnet (except 
the Earth’s central one.) 
Finding 
