50 Mifcettanea Curiofa. 



(hall in future Ages be obferv'd otheiwife, we 

 muft then conclude that there are more of thefe 

 Internal Spheres, and more Magnetical Poles 

 than Four, which at prefent we have not a fuf- 

 ficient number of' Qbfervations to determine, 

 and particularly in that vaft Mar del %ur 9 which 

 occupies fo great a part of the whole Surface of 

 the Earth. 



If then two of the Poles be fixt and two move- 

 able, it remains to afcertain which they are that 

 keep their place ^ and though I could wilh we 

 had the Experience of another Century of Years 

 to found our Conclusions upon, yet I think we 

 may fafely determine, That our European North 

 Pole (which in the precedent Difcourfe I fuppos'd 

 near the Meridian of the Lands-end of England, 

 and about (even Degrees therefrom) is that That 

 is moveable of the two Northern Poles, and that 

 That has chiefly influenc'd the Variations in thefe 

 parts of the World : For in Hudfons Bay, which 

 is under the Direction of the American Pole, the 

 Change is not obferv'd to be near fofaft as in thefe 

 parts of Europe, though that Pole be much farther 

 remov'd from the Axis. 



As to the South Poles, I take the Afian Pole, 

 which 1 place about the Meridian of the Ifland 

 Celebes to be the fixt, and confequently the Ame- 

 rican Pole to move ; from the like Obfervation of 

 the flow Decreafe of the Variation on the Coaft 

 of Java, and near the Meridian of the Afian 

 Pole , though I muft confefs to have no account 

 of the effects of the other beyond Magellan's 

 Streights. 



If this be allow'd me, 'tis plain that the fixt 

 Poles are the Poles of this - External Shell or 

 Cortex of the Earthy and the other two the 

 Poles of a Magnetical Nucleus included and 



moveable 



