of ^aanettTm* is 



metal, as far as I have tried, is the 

 ufual ingredient of Loadftones) be- 

 ing fpoiled by the violence of the fire, 

 this rude Agent leaves it in the con-* 

 dition of common Iron, or perhaps 

 of ignited Iron-ore : whereas the 

 fire does foften the Iron it felf 

 (which is a metal not an Ore) agita- 

 ting its parts, and making them the 

 more flexible, and by relaxing its 

 pores, difpofes it to be eafily and 

 plentifully pervaded by the Magne- 

 tical (teams of the Earth, from which 

 it may not improbably be thought to 

 receive the verticity it acquires i and 

 this the rather, becaufe, as I have 

 often tryed 5 and 

 elfewhere mention- EXPER. XL 

 ed, if an oblong 

 Loadftone, once fpoiPd by the fire, 

 be thorowly ignited and cooled ei- 

 ther perpendicularly, or lying hori- 

 zontally North and South, it will, as 

 well as a piece of Iron handled after 

 the fame manner,be made to acquire 

 new poles, or change the old ones, 

 as the skilful experimenter pleafes. 

 B 2 But 



