( 5149 ) 
endeavors to explain, how it comes to pafs^that one Wkid 
blows on the Top of a MonntaiDj and a quite constrary in 
the Vally below 5 and why in the mam Seaj, Winds keep 
the fame Quarter a long time , but near mountaiBoas 
lilands or Shears they whiftle up and down^ and (hifcfrom 
^ one paint of the Compafs to' another 5 Obierviog aifo^thaE 
fomecimes Contrary winds do rencounter together^ and 
that by their bailancing one another a Calme enfueth* 
6. He treats of the Matter of Winds^ their Limits and 
Extent^ and the fF/w^ Seafons 5 giving an account, 
why they blow more in Spring and Autumn, than at othe«; 
times* 
7* He proceeds to the Hiftoryof ihQ General ovTrade^ 
wmd, alledging the Caufes why it blows conftantly 
from the£^/^r/y points^ and imitates the Courfe of the 
Sun; Injftrufting us witlaallj where it is to be expected on 
this fide of the Tropique ; as alfo of the Variation thereof 
ia fcvGral Longitudesy and the Caufe of the blowing of the 
Wejierly winds without the Tropiq\:iQS^ 
8. He treats of Provincial winds^ fuch as wander not far 
- from thgir native fountains,aad teriainat in thofe Regions 
that gave them birth. 
9. He gives the Hiftoryof the land and Sed^Brifes^ 
when they come in, or ceafe^in the Straights^on the CoaUs 
oiGuiny, znd \hQ Eafi znd Wefi ^Indies and what Acci- 
dents haften or retard their approach* 
10. He difcourfes of the Anniverfary ^inds ; their fe ve- 
ral fpecies, and particularly thofe in the way totheEaft* 
IndieSjCalled the Monfoom : How many months they con- 
tinue the fame Courfe on the Goaft of J frique and India j 
together with the Ghanging and Breaking up of the /li®;?- 
foom, and the danger there is then at Sea when they do 
1 1. He examins the ^alities of Winds^ derived from 
thtit Conflitumt Parts^ ot the Medium th^y pdiC^ through^ 
Where he defcends to the Gonfideratien of the Properties 
of Edftfirly, Soutkirly^ Wefierly and Nortb-mudt 5 infer ting 
Sj ss $ 2 divers 
