An Hifiorical Account of the 1 rade Winds, ai^d M^^'* 
foons, ■obfcrz-ahle in the Seas between and near the 
Tropicks, mih an altempt to afpgn theVhifual canfe 
of the faid IVinds^ by E. Halley. 
AN exa£t P^elatioQ of the conftant and Periodical 
Winds, oblervable in feveral Trads of the Ocean, is 
a pa t of Natural Hillory not lefs clefireable and ufeful^ 
than it isdiiFicalt to obtain, and it's PhM^noraem hard to ex- 
plicate : I am not Ignorant that fcveral W r iters have under- 
taken this fubjefl:, and although Varemf^^s ( Lib. L Chap, 
XXL Geo. Gen ) feems to have endeavoured after the beff- 
information from Voiagersy yet cannot his accounts be ad- 
mitted for accurate, by thole that fhall attentively confider 
and compare them togather ; and fbme of tiiem are moft 
evident miftakes ; which, as near as I can, I fhall attempt 
to reftify, having had the opportunity of converfing with 
Navigators acquainted with all parts of India^ and having 
lived a confiderabie time between the Tropicksy and there 
made my own remarks. 
The fubftance oi what I have collefled is briefly as fol- 
lows. 
The Univerfal Ocea^f may moft properly be divided inte 
three parts, viz. « . The Atlmtick and ALthiopickSea: 2. The 
Indiml Ocean: J. The Great South Sea or the Pmfick Ocean ; 
and the' thefe Seas do all communicate by the South, yet as 
to our prefent purpofe of thtTrade PV/rJsj they are fuffici- 
ently feparated by the interpofition of great tracts of L nd ; 
the firft lying between Africa and A^eriia, the fecond be- 
tween ^^"r/V^jand tiie l^did^. l[hfzds and HolUmdi.i Nova\ and 
the laft, between the Philippine Ifles^ China, Japan and Hoi- 
/ andi a A^ov a on the fVef, and ihe Coaft of ^.ww^ on the 
Eajl; Now following this natural divifion of the S^as, fo 
will we divide our Hiilory into three parts, in the fame or- 
der. 
U I. 
