( *?8 ) 
Having ground fome Loadftones with Emmery, I 
liave faved the Grindings, and mixing them with Wa- 
ter, fo that they might eafily be moved, I put them into 
a Bottle to fink, placing on each Side a Loadftone, one 
with its North,' and the other with its South Pole to- 
wards the Bottle, and found, after the Matter was fettled 
and dried, it formed itfelf into a Sort of Loadftone, 
which had a moderate Strength, and two regular Poles. 
I have found feveral Niceties in arming of Loadftones; 
but not to be tedious, I ftiall herewith conclude ; not 
doubting but that if I have difcovered any thing, yet 
unknown, you will own or record me to be the Inventor 
of it. l am, with humble Refpeds, 
Gentlemen, 
■Tour mojt humble Servant , 
Arnold Marcei 
a the End of the Iron Bar, with which the Vertue is 
rubbed into the Steel or Iron. 
N° i. the Figure of the Point, on one Side. 
N° %. The Figure of the Point, on the other Side. 
A The Needle of a Compafs. 
B B The End or Edge of the Bar, with which the 
Needle is rubbed, beginning at 
€ C, and proceeding to D D. 
FINIS. 
