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If the fouth pole of a magnet be charged with filings of iron, 

 and then approached to a bar of iron {landing ere(fl, part of the 

 filings will drop off, becaufe the poles of the fame name, by ex- 

 citing a contrary arrangement, weaken each other ; but if the 

 filings were fufpended from the north pole of the magnet it 

 would take up ftill more of the filings, as the oppofite poles 

 ftrengthen each other, the uppermoft pole of the iron in this 

 cafe becoming magnetic by pofition. 



If the fynonimous poles of two magnets of unequal powers 

 be approached to each other, if the powers be very unequal the, 

 ftronger immediately deftroys the weaker, and inducing a con- 

 trary difpofition attracts inftead of repelling it ; if the powers be 

 lefs unequal it requires a longer time ; fo alfo if one be fofter 

 than the other. Even if their powers be equal, yet after fome 

 time the fofter will yield to the harder. If both be equally hard 

 they only weaken each other. 



If a magnet be cut in two, in a diredllon parallel to the axis, 

 the parts before conjoined will now repel each other, becaufe 

 they ftill retain two fynonimous poles. 



But if the magnet be cut in two in a diredlion perpendictdar 

 to the axis, the two ends before conjoined will now attradl each 

 other. 



Aa 



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