WINDS, Sec. 97' 



•vances toward the zenith, and acquires such power, 

 that in July and August it is nearly as constant in 

 Louisiana, Kentucky, and even as far as lake Chanfi- 

 plain, forty or fifty days, as the trade-wind is at the 

 equator. It prevails almost equally on the St, 

 Lawrence, and to sail up this river a ship is some^ 

 times obliged to wait a whole month for an east or 

 north-east wind, which after all is of short con- 

 tinuancco It is the south-west wind too, that thaws 

 the St. Lawrence about the 20th of April, as it is 

 the north-west that freezes it at the end of Decem- 

 ber. The south-west, as well as the south, is the 

 hot wind of Canada, Vermont, and Genessee ; but it 

 is very decidedly so only in summer : in other sea- 

 sons it is cooler in proportion as the sun is nearer 

 the horizon, and as the land is less distant from the 

 pole ; being hottest as we advance toward Kentucky, 

 Tenessee, and the gulf of Mexico, which is its ori- 

 ginal focus. 



Front jhe vicinity of this it raises the temperature 

 of Lower Louisiana so high during the four winter 

 months, that notwithstanding the pretty frequent oc- 

 ciirrence of north-north-west and east winds, the su- 

 gar cane, particularly that of Otaheite, may be culti- 

 vated there. But this favour is dearly purchased by 

 oppressiv"^ heat during the four summer months, ac- 

 companied with extremely violent and almost daily 

 storms, of the same kind as those that are called 

 white squalls in the West Indies. 



In fact it is really the trade-wind of the Atlantic, 

 that feeds the atmosphere of the gulf, and produces 

 there most of the phenomena, of which it is the 

 theatre. It enters the gulf with more force, because 



