[ 54 * ] 
colder in America than in Europe. Upon Suppofi- 
tion that the North-weft Wind blows from North- 
America , I can, methinks, eaftly account for all thefe 
contrary Effe&s produced by the fame Wind. 
Though it blows from a cold to a warmer Quarter, 
yet it brings Rain at firft, for this Reafon, becaufe 
the Air over the Ocean about us is warmer than that 
over us. When the North- weft begins to blow, it 
muft drive the Air before it; and then the Vapour 
that floated in warm Air will fall down with us.. 
Even the North-eaft, the drieft and coldeft Wind we 
have, will bring Rain, and for many Hours, when 
it fets in after a South weft. 
Hence alfo it is that the South- eaft and South 
W inds bring much Rain, and for many Hours together* 
I take the South- eaft to come from the Alps, and the 
South from the Pyrenees. 
I fhall, at prefent, run no farther into Particulars j 
my Defign being only to inquire into the Caufes of a 
long Continuance of dry or wet Weather. It would 
be endlefs to enter into all the Predictions of Wea- 
ther, that may be collected from Books, and private 
Obfervations : Moft of them pretend to foretel the 
Weather no farther than a few Days. If thofe Pre- 
dictions and my Hypothefis be founded on Nature, 
they will all admit of the fame, or of a confiftent 
Explanation. 
N . F. ‘Dec . 31. 1735. 
XI. No* 
