( 3°4 ) 
its Equiriodlial) but tranfmitting their Vertue through 
one another, the Pole 2 of the one Fruftuin, Flg^'^d^ 
wholly fpends itfelf in ftrengthening the (imilar Pole 
a of the other Frufluin, by weakning the Pole v there- 
of, ^ vice verfd. And if their Lengths (liould be- 
unequal, like the Frulla of Fig. 17^, divided at 
the Equino6tial would not be at w, where they were 
joined together again, but always at e the Middle of 
their whole conjuncff Length, as it ufeth to be in one 
entire Loadftone of the fame Bignefs from Pole to 
Pole: For I apprehend if any Loadftone fhould be 
wrought very Tapering from one Pole to the other, 
that the Equinoctial could not be precifely in the 
Middle thereof, but according to what Degree of Ta- 
pernefs it is wrought to, be removed nearer to the great 
End: But thefe Things, for want of proper Load- 
ftones, I cannot try, nor yet the following on Fig. 
which reprefents a Loadftone in the Form of a 
Parallelopipedon right angled, in Thicknefs one Inch, 
its Breadth a>f 6 Inches ; its Length a c Inches on 
more, havings ks Polarity not perfedrly length-ways 
in it, but a little oblique, as the Shade-Lines repre- 
fent it. If there is cut off from one of it’s Ends c 
the Parallelopipedon h c d e one Inch from the faid 
End, it will be one Inch fquare, and (ix Inches long : 
iTuppofe this lelTer Fruftum would have its Polarity 
changed, and the Dired:ion thereof, inflead of running 
from e fomewhat towards dy would run from e to- 
wards ^vin the Diagonal Line e c, or in fome Line or 
other between the Lines ^ and ^ I alfo imagine, 
that if a Cube was cut off, within a little Time after, 
from one End, the Polarity therein would be direCfed 
as it was therein,^ while all the faid Frufta adhered' 
toge- ■ 
