I 397 ] 



the eafterly trade wind begins at the point nearefl the ^un, 

 which it follows, and is perpetually renovated and fupplied 

 from parts ftill more eaflerly. — Thus in the ye:r 1709 a north 

 wind was fooner perceived in England than at Dantzick. 4 Phil. 

 Tranf. Abrid. 2d part, p. 115. And Wargentin notes that 

 when the wind changes to the weft, this change takes place at 

 Mofcow before it happens at Abo, which is feveral degrees weft 

 of it, and fooner in Finland than in Sweden. Sehwd. Abhandl. 

 1762, p, 195. And Dr. Franklin, in his XXXVI. Letter, p. 389, 

 thinks that the north-eaft ftorms in North America begin firft 

 in point of time in the S. W. parts ; that is to fay, fooner in 

 Georgia than in Carolina, and fooner in Carolina than in Vir- 

 ginia, &c. He found that a north-eaft ftorm began at Phila- 

 delphia at feven o'clock, but did not extend to Eofton (about 

 forty miles to the north-eaft) until eleven o'clock. The reafon 

 of which he well explains, as the current muft begin in the 

 places neareft to that in which the rarefaflion arifes towards 

 which the current is diredled, 



OfWeJierly Winds. 



That eminent and laborious meteorologift, citizen La Cotte, 



infers from numerous obfervations of many years, that between 



Voi,, VIIL 3D latitude 



