tS6 studies of nature. 



much as fufpeft the exiftcnce of it's general Cur- 

 rent, though he has thoroughly inveftigated the 

 two Currents, or Monfoons, of the Indian Ocean, 

 I (hall proceed to adduce certain fafts, which efta- 

 blifli the mofl perfed conformity between the 

 Atlantic Current and thofe which he himfelf ob- 

 ferved in the Indian Ocean, and in the South Sea. 



Thefe fads will farther prove, to a demonftra- 

 tion, the exiftence of thefe polar effufions : for, 

 univerfally, wherever thefe effufions happen to 

 meet, in their progrefs fouthward, their own coun- 

 ter-currents which are fetting in toward the North, 

 they produce, by their collifion, Tides the moft 

 tremendous, and whofe diredion is diametrically 

 oppofite. 



Let us confider them only at their point of de- 

 parture to the North of Europe, where they begin 

 to leave our coafts, and to ftretch out into the open 

 Sea. Poni Oppidan fays, in his Hiftory of Nor- 

 way, that there is above Berghen a place called 

 Alûle/Irom, very formidable to mariners, where the 

 Sea forms a prodigious vortex of feveral miles dia- 

 meter, in which a great many veffels have been 

 fwallowed up. James Beverell * fays pofitively, 

 that there are in the Orkney iHands two oppofite 



* Stt James Beverdl, Beauties of Scotland, vol. vii. page 1405. 



TideSj 



