4. 6 MifceUanea Curiofa. 



In all the other Examples the Needle has gra- 

 dually mov'd towards the Weft, and the places 

 are too far afunder to be influenc'd by the re- 

 moval of any Magnetical Matter, which may 

 by accident be tranfplac'd within the Bowels, or 

 on the Surface of the Earth. If more Examples 

 are defir'd, the Reader may be furnifh'd with 

 them in the Portuguese Routier of Aleixo de Mot- 

 ta (written about the Year 1600) and in the 

 Voyage of Bcaulieu, both publifti'd in Mr. The- 

 venois firft Collection of curious Voyages, Prin- 

 ted at Paris, Anno 1663 j which he is to com- 

 pare with the Journals of our late Eafi India 

 Voyagers, and I am affur'd, that it will be there- 

 by evident, that the Direction of the Needle is in 

 no place fix'd and conftanr, tho 5 in fbme it change 

 fafter than in others And where for a long time 

 it has continu'd as it were unalter'd, it is there 

 to be underftood, that the Needle has its grea- 

 teft Deflection, and is become Stationary in or- 

 der to return, like the Sun, in the Tropick. 

 This, at prefen t, is in the Indian- Sea> about 

 the Ifland Mauritius, where is the higheft Weft 

 Variation, and in a Tract: tending from thence 

 anto the N. N. W. towards the Red- Sea and 

 Mgspt. And in all Places to the Weft ward of 

 this Tracl:, all over Africa and the Seas adjoin- 

 ing, the Weft Variation will be found to have 

 encreas'd ; and to the Eaftwards thereof as in 

 the Example of Cape Comer ine 9 to have decrea- 

 fed, all over the Eaft- Indies, and the Iflands 

 near it. 



After the like manner in that Space of Eaft 

 Variation, which, beginning near St. Helena, is 

 found all over the South America^ and which at 

 prefent is higheft about the Mouth of KJo de la 

 Plata* it has been obferv'd, that in the Eaftern 



Parts 



