Now to propose something that may answer the several appearances, and introduce nothing strange in Philosophy, after a great many close Thoughts, I can come to no other Conclusion than that, _The whole Globe of the Earth is one great Magnet, having four Magnetical Poles, or Points of Attraction, near each Pole of the Equator. Two; and that, in those parts of the World which lie near adjacent to any one of those Magnetical Poles, the Needle is govern'd thereby, the nearest Pole being always predominant over the more remote_. The parts of the Earth wherein these Magnetical _Poles_ lie, cannot as yet be exactly determin'd for want of sufficient _Data_ to proceed Geometrically; but, as near as Conjecture can reach, I reckon that the _Pole_, which is at present nearest to us, lies in or near the Meridian of the Lands-end of _England_, and not above seven Degrees from the Pole Arctick; by this _Pole_ the Variations in all _Europe_ and _Tartary_, and the _North Sea_ are principally govern'd, though with regard to the other Northern Pole, whose situation is in a _Meridian_ passing about the middle of _California_, and about 15 gr. from the North Pole of the World; to this the Needle has chiefly respect in all the North _America_, and in the two Oceans on either side thereof, from the _Azores_ Westward to _Japan_, and farther. The two Southern Poles are rather farther distant from the South Pole of the World: The one about sixteen Degrees therefrom, is in a Meridian, some twenty Degrees to the Westward of _Magellan Straights_, or ninety five Degrees West from _London_: This commands the Needle in all the _South-America_, in the _Pacifick Sea_, and the greatest part of the _Ethiopick_ Ocean. The Fourth and last _Pole_ seems to have the greatest Power, and largest Dominions of all, as it is the most remote from the _Pole_ of the World, being little less than 20 Degrees distant therefrom in the Meridian, which passes through _Hollandia Nova_, and the Island _Celebes_ about one hundred and twenty Degrees East from _London_; this Pole is predominant in the South part of _Africa_, in _Arabia_ and the _Red Sea_, in _Persia_, _India_, and its Islands, and all over the _Indian Sea_, from the Cape of _Good-Hope_ Eastwards to the middle of the great South Sea, that divides _Asia_ from _America_. This seems to be the present Disposition of the Magnetical Vertue throughout the whole Globe of the Earth; it remains to shew how this Hypothesis makes out all the Variations that have been observ'd of late; and how it answers to our several Remarks drawn from the Table. And first it is plain, that (our _European_ North _Pole_ being in the Meridian of the Lands-end of _England_) all places more Easterly than that will have it on the West side of their Meridian, and consequently the Needle, respecting it with its Northern Point, will have a Westerly Variation, which will still be greater as you go to the Eastwards, till