Of Winds and Sounds.

. 4

Now it is easy to understand, that hy.

r th

A' r

Composition of these two Directions of ^

Plate

XXXII.Fig. X.

2. That this Point R

is on the Eastern Side j SPoint A is not difficult to be conceived, whensaid concerning the Tide in Annot. LXXXIW i S |j;considers. And because the Air at R is by ^P". t jst:on lighter than where it is colder at C and IX , j C bplain that,- in order to maintain an Equilibrium, v mIis necessary in a fluid Body) the Air by its o X $Weight will have a Tendency from C and D'& p,R, and rife to a Height there greater than at Cin Proportion as its Density is less. gu* 1

3. Now this being the Cafe, it is evidenf, f b ebeing always between the Points R and D, ' vl (,c-heating the Air on that Part; and those Reg' 011 ^jll

of ^

and those Regtween R and C, having been deserted by the S u|1 >^ ygrow cold : Consequently, the Air between C

as it is colder, will likewise be heavier than that a t ef

R and D which is hotter, and so will have a Sp 0 jfliMomentum , or Quantity of Motion, towards th e ^R ; and since this Point R is constantly m0^^„the Point A Westward, the Motion of the

by that ot

to the

0

towards it will b'e in Fart diminishedand being also inferior in Quantity tothe Eastern Air, the latter will prevail over it, ^constantly following the said Point R fromWest, and tlius produce a continual Eajl tVwi- j \fcb'

4. It may perhaps be here said, that though t

« • ' ' r r _ f 0 [n? U - III

at l el> !

tion of the Air be less from D to R, yet it is i’J

and so the e

th 5

ought to be a Western Wind,' a '’, 0 {some Degree, and to some Distance West' var „ of ^Point R. To which I answer, That the ^ at ^ 0 sS ^Fluid will not permit two contrary Motions to ^sustain an Equilibrium, (I mean in regard of c ^ jettsBody of it) for wherever one Part of the Elu> i^mined to move, all the rest must necessarilyotherwise the Equilibre of the Air would be ^ pef ein one Part, to make it good in another i fe£ f .which Nature cannot be guilty of. T hu S ^ r fi$

I