Towards the Southern Pole the effect is much the same, only that here the South Point of the Needle is attracted. Hence it will follow, that the Variation on the Coast of _Brazile_, at the River of _Plate_, and so on to the Straights of _Magellan_, should be Easterly (as in our third Remark); if we suppose a Magnetical Pole situate about twenty Degrees more Westerly than the Straights of _Magellan_. And this Easterly Variation doth extend Eastward over the greatest part of the _Ethiopick_ Sea, till it be counterpoised by the Vertue of the other Southern _Pole_; as it is about mid-way between the Cape of _Good-Hope_, and the Isles of _Tristan d' Acuntia_. From thence Eastwards, the _Asian_ South Pole (as I must take the liberty to call it) becoming prevalent, and the South point of the Needle being attracted thereby, there arises a West Variation, very great in quantity and extent, because of the great distance of this Magnetical Pole of the World. Hence it is, that in all the _Indian_ Sea as far as _Hollandia Nova_, and farther, there is constantly West Variation; at that under the Equator it self it arises to no less than eighteen Degrees, where 'tis most. About the Meridian of the Island _Celebes_, being likewise that of this Pole, this Westerly Variation ceases, and an Easterly begins; which reaches, according to my Hypothesis, to the middle of the _South-Sea_, between _Zelandia Nova_, and _Chili_, leaving room for a small _West Variation_ govern'd by the _American_ South Pole, which I shew'd to be in the _Pacifick Sea_, in the sixth and seventh Remark. What I have now said, does plainly shew the sufficiency of this Hypothesis for solving the Variations that are at this time observ'd in the temperate and frigid _Zones_, where the Direction of the Needle chiefly depends upon the Counterpoise of the forces of two Magnetical Poles of the same Nature; and I suppose I have shewn how it comes to pass, that under the same Meridian the Variation should be in one place 29½ West, and another 20½ East; as I have noted in my ninth Remark.