6 



o 



Conjectures Respecting the North West ITinds. 



Appalacliian, Allegany, and other 



form a long ridge, back 



high mountains, which 



r 



of our settlements, must be made 



P 



very cold ; or, if the wind should come from the north or 

 northeast on to those mountains, the effect would be the 

 same : -For we know, that the snow lies through the summer, 

 upon the tops of very high mountains, such as the Andes, 

 the Alps, ^tna, &c. Now, the course of the sea being N. E. 

 and S, W. and the air being made warmer, and consequently 



^^ I 



lighter, upon the coast, in the winter, than it is upon and 



near those mountains 



causes a current of air 



o 



ht 



angles with the coast of the sea, that is, a N. W. wind, which 

 coming down from the tops of the mountains, with the in- 

 creased cold it there contracted, occasions our north west 

 winds to be more constant in the winter, and colder than in 



other parts of the world 



same latitude 



ed 



This 



also account for the N. W. wind b 



o 



often 



colder, and the thermometer lower in Connecticut than in 



Nova Scotia; although the lai 

 as the wind comes down from 



be 



upon Connecticut, 

 winds, cominoj alono- 



Up 



top 



much further north 

 of higher mountain 



n the same princi23les, our S. W. 

 the south east side of the ridge of 



mountams, and not over them, will be warm. This wj 



so make it probable, that the N. W., winds are not so 

 on the low 



latitudes on 



lands N. W. of those mountains, as in the 



1 al- 

 cold 



same 



S. E. side 



milder 



and the weathe 



g 



and 

 af- 



. The great lakes N. W. from us never free: 

 if they did, their ice, when covered with snow, could 

 feet the air over them, any more than land covered with 

 snow : so that the great lakes, back of us, beinir heretofore 



given as the reason of N. W. winds being 



7 



have 



