C 54 * 3 
Days, the fame South-weft ftill blowing ; therefore 
Gold, with us, is not wholly owing to a Slacknefs 
of the South- weft Winds. 
Let us now fuppofe the Privation of the Sun’s Heat 
to be the only Caufe of Cold : The Confequence 
will be, that all Places equally diftant from the Sun, 
will be equally cold. But it is well known, that, in 
the fame Northern Latitude in Europe , Cold is 
greater on the Continent than in IQands : Therefore 
Privation of the Suns Heat is not the only Caufe of 
Cold The Sun’s Abfence, like other negative 
Caufes, can amount only to the Removal of an Ob- 
ftru&ion which hindered the efficient Caufe of Cold, 
whatever it be, from acting. 
Since the larger the Trad: of Earth, the greater 
the Cold, the efficient Caufe of Cold feems to be in 
the Earth; and yet, when we defcend a little Way 
under-ground, not only in Mines, but in fome Cellars, 
we find an even Temperament: We muft therefore 
confine this efficient Caufe of Cold to the Earth’s 
Surface. 
But if the Earth’s Surface be the foie efficient 
Caufe of Cold, fince the Surface of the Earth ftill 
continues the fame, the Cold fhould be the fame on 
that Surface every Winter ; whereas we find it other- 
wife. We muft, therefore, feek for fome concurrent 
Caufe, between whom and the Earth’s Surface this 
Cold is generated ; and that, I think, can be no 
other than what is carried on the Wings of the 
Wind. 
'Dampier obferves, that, after a Tornado at Land 
in 'Jamaica , the Land-wind will begin by Four or 
Three o’Clock in the Afternoon. The Materials of 
this 
