Mijcellanea Curiofa. 3 7 



fecms to be the prefent Difpofition of the Mag" 

 netical Vertue throughout the whole Globe of 

 the Earth ; it remains to fhcw how this Hypo- 

 thecs makes out all the Variations that have 

 been obferv'd of late ; and how it anfwcrs to 

 our feveral Remarks drawn from the Table. 

 And firft it is plain, that ('our European North 

 Pole being in the Meridian of the Lands-end of 

 England) all places more Eafterly than that will 

 have it on the Weft fide of their Meridian, and 

 confecjuently the Needle, refpe&ing it with its 

 Northern Point, will have a Wefterly Variati- 

 on, "which will ftill be greater as you go to the 

 Eaftwards, till you come to fame Meridian of 

 l{ujfia> where 'twill be greateft, and from thence 

 decreafe again. Thus at Brcfl the Variation is 

 but 1 4 Degrees, at London 4 J Degrees • but at 

 Danttfck, ieven Degrees Wed. To the Weft- 

 ward of the Meridian of the Lands-end, the 

 Needle ought to have an Eafterly Variation ; 

 were it not that (by approaching the American 

 Northern Pole % which lies on the Weft fide of 

 the Meridian, and ieems to be of greater force 

 than this other) the Needle h drawn thereby 

 Weftwards, fo as to counrerbullance >he D> 

 rie&ion given by the European Pole, and to make 

 a fmall Weft Variation in the Meridian of the 

 Lands»end it (elf. Yet I fuppofe that about the 

 Meridian of the Ifle Tercera, our neareft Pole 

 may (6 far prevail as to give the Needle a little 

 turn to the Eaft, though but for a very fmall 

 (pace : The Counterballar.ee of thofe two Pol- s 

 permitting no confiderable Variation in all the 

 Eaftern Parts of the Atlantic^ Ocean \ nor up- 

 on the Weft Coafts of England and Ireland* 

 France, Spain and Barbary. But to the Weft- 

 wards of the Azores the Powc r of the American 

 D 3 Pole 



