"Chap. 22. A TrtAtifecf BODIES. 241 



caufe, at the leaft other forts of earth ( as we have declared of 

 potearths) cannot be wanting in any large extent of country; 

 which when they arc baked and cooled in due pofitioiu, have 

 this crTeftof the loadftone, and are of the nature of it. And 

 Doclour Gilbert fheweth, that the loaciftone is nothing elfe but 

 the ore of fteel or of perfe&eft iron, and that it is to be found 

 of all colours, and fafhions, and almoft of all confidences. 



So that we may eafily conceive, that the emanations of the r * 

 loadftone being every where, as well as the caufes of gravity; 

 the two motions of magnetick things and of weighty things, do 

 both of them derive their origine from the fame iburce; I mean* f 

 from the very fame emanations coming from the earth; which 

 by a divers ordination ofnacure,do make this eflfecl: in the load- 

 ftonc, and that other in weighty things. And who knoweth but 

 that a like fucking to this which we have fhewed in magnetick 

 things, pafleth allb in the motion of gravity.? In a word; gra- 

 vity bcareth a fair teftimony in the behalf of the magnetick 

 force; and the loadftones working returneth no mean verdicl 

 for the ciufes of gravity, according to what we have delivered 

 of them. 



CHAP. XXII. 



ji foiHtiox if certain Problcmes concerning the loAdftone, and 

 afhort jammc efthe vthole dottrint touching it. 



OUt of what is faid upon this fubje<St,we may proceed to the T< 

 folution of certain queftions or problemcs, which are or which is t^e 

 may be made in this matter. And-firft, of that which Doftour ^hich'the* 

 Gilbert difputeth againft all former writers of the loadftone; to South Pole of 

 wit,which is the North, and which the South pole of a ftone? a loadftone * 

 Which feemeth unto me, to be onely a queftion of the name: 

 for if by the name of north and fouth, we underftand that end 

 of the /tone which hath that virtue that the north or fouth pole 

 of the earth have, then it is certain, that the end of the ftone 

 which looketh to the fouth pole of the earth, is to be called the 

 north pole of the loadftone; and contrariwife, that which look- 

 eth to the north, is to be called the' fouth pole of it. But if by 

 the names of north and fouth pole of the ftone, you mean thofc 

 ends of it, that lie and point to the north and to the fouth 



Q^ poles 



