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ferent motions in the water might be more eafily dilVrngiiiflicd. 

 This glais 1 put into a very large and broad beer-cup, in w hich 

 it funk in the water as deep as the place marked K: the point 

 M immediately veering about to the North-eaft part of the 

 heavens, and as often as 1 altered its pofition, it returned to it 

 again. 



I had alfo feveral fragments of the before-mentioned Magnet, 

 one of which weighed no more than five grains; others of them, 

 fomewhat larger. I took three of thefe fmall pieces or particles, 

 and prepared for them three fmall glalles of the fliape reprefented 

 ^tjjg. -1, Q R ST, in which, at V, the particle of Loadllone is to 

 be feen. The part Q R was added for no other purpofe than to 

 keep the glafs upright in the water. Two of thcfe fmall glafles 

 were fo made, that no more than the part S T appeared above 

 the furface of the water; the third was fomewhat more ele- 

 vated. 



Upon putting thefe glaffes into the water, the extremity or part, 

 T, of one of them turned itfelf towards the Weft ; and as often 

 as I changed its pofition either way, it refted not till it had re- 

 turned to its firft pofition ; and even when, with a quicker mo- 

 tion, I turned the cup round from the South towards the Weft, fo 

 that the part, T, almoft pointed towards the North, that part im- 

 mediately turned back to the Weft, and there refted. The fecond 

 glafs pointed its part, T, towards the Eaft ; and in whatever di- 

 reftion I moved it, it would not remain at reft, except in its firft 

 pofition. 



I was greatly furprifed to find, in thefe experiments, that fuch 

 minute particles of Loadftone, clofely ftiut up in glafles, and more- 

 over immerfed under water, would yet point to that p;u:t of the 

 Heavens whereto they were inclined.* 



* The nniformity of Nature's operations, in cafes analogous, will be fecn cxemplifift], on 

 comparing thefe appearances in the Loadftone with what has been obferved by naturalifls in 



