according to the . ordinary Hypothefis of the Magnet, the 
Magnetical Vertue pafTmg more eafily in the Steel thaa 
in the Air, fhould runn on both fides of the Pole round 
the Ring, and only form a Pole oppofite to the firft. But 
I was further confirmed in this Opinion by applying a 
flatt and pointed piece of Iron, like the blade of a Knife, to 
a Load-ftone, To as the point of the Iron reached beyond 
the Stone ; and having after wards prefented this point to 
the Magnetical Ring, I oblerved that different Points of 
this Ring did apply to the Point of the Iron, according as 
the feveral parts thereof had been applyed to the Scone: 
which happens not in the Magnetical Needle, for that 
always prefents one of its ends to the Point of the Iron, be- 
ing not difpofed, by reafbn of its length, to receive the 
Magnetical matter in all the parts thereof analogous 
to thofe of the Stone. It muft only be noted that in an 
irregular Stone the Magnetical Vertue appears ftronger to- 
wards the Angles than in the other parts, which may 
caufe fbme irregularity in this Experiment, if it.be tried 
with a Stone that is very uneven. 
Thefe Experiments gave me the Curiofity of making 
another, by touching t vvo Semi-circles of Steel. Having 
joyned the two ends touched by the fame Poles, I obler- 
ved by the Steel-duft the fame efFeQ: as in the Ring. But 
having joyned the ends differently touched; I found that 
immediately the two half-rings run together and ftuck to 
each other ; and by the Steel-duft ftrowed on Paper I ob- 
fervedjthat there were four Vortices^ one in the middle of 
each {emi-circle, and one at each of the places where they 
were joyned, and that the two latter were left than the 
others and much ftronger. [I faw likewife that there were 
four Poles, each of which was within a Vortex^ and that 
each retained in its iemi- circle the Vertue of the ends of 
the half Rings. 
I would trie,after having touched a Steel-Wire that was 
ftreight, to make a Ring thereof ; but I found that it had 
quite 
