Salusbury, Thomas, Mathematical collections and translations (Tome I), 1667

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            <p type="main">
              <s>
                <pb xlink:href="040/01/424.jpg" pagenum="402"/>
                <arrow.to.target n="marg781"/>
                <lb/>
              ſame terreſtrial evaporations, we finde a perpetual gale move
                <lb/>
              from the Eaſt with ſo conſtant a blaſt, that ſhips by favour
                <lb/>
              of ſail proſperouſly to the
                <emph type="italics"/>
              West-India's.
                <emph.end type="italics"/>
              And from the ſame
                <lb/>
              coaſting along the
                <emph type="italics"/>
              Mexican
                <emph.end type="italics"/>
              ſhore, they with the ſame felicity paſs
                <lb/>
              the
                <emph type="italics"/>
              Pacifick
                <emph.end type="italics"/>
              Ocean towards the
                <emph type="italics"/>
              India's
                <emph.end type="italics"/>
              ; which to us are Eaſt, but
                <lb/>
                <arrow.to.target n="marg782"/>
                <lb/>
              to them are Weſt. </s>
              <s>Whereas on the contrary the Courſe from
                <lb/>
              thence towards the Eaſt is difficult and uncertain, and not to be
                <lb/>
              made by the ſame Rhumb, but muſt vere more to Land-ward, to
                <lb/>
              recover other Winds, which we may call accidentary and
                <lb/>
              tuary, produced from other Principles, as thoſe that inhabit the
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              continent find by experience. </s>
              <s>Of which productions of Winds,
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              the Cauſes are many and different, which ſhall not at this time be
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                <arrow.to.target n="marg783"/>
                <lb/>
              mentioned. </s>
              <s>And theſe accidentary Winds are thoſe which blow
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              indifferently from all parts of the Eatth, and make rough the Seas
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              remote from the Equinoctial, and environed by the rugged
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              face of the Earth; which is as much as to ſay environ'd with
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              thoſe perturbations of Air, that confound that primary Gale.
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              </s>
              <s>The which, in caſe theſe accidental impediments were removed,
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              would be continually felt, and eſpecially upon the Sea. </s>
              <s>Now
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              ſee how the effect of the Water and Air ſeem wonderfully to
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              cord with the Celeſtial obſervations, to confirm the mobility of
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              our Terreſtrial
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                <arrow.to.target n="marg784"/>
              </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg780"/>
                <emph type="italics"/>
              The vaporous
                <lb/>
              parts of the earth,
                <lb/>
              partake of its
                <lb/>
              tions.
                <emph.end type="italics"/>
              </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg781"/>
                <emph type="italics"/>
              Conſtant gales
                <lb/>
              within the
                <lb/>
              pieks blow towards
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              the Weſt.
                <emph.end type="italics"/>
              </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg782"/>
                <emph type="italics"/>
              The courſe to the
                <lb/>
              Weſt
                <emph.end type="italics"/>
              -India's
                <emph type="italics"/>
                <lb/>
              ſie, the return
                <lb/>
              ficult.
                <emph.end type="italics"/>
              </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg783"/>
                <emph type="italics"/>
              Winds from Land
                <lb/>
              make rough the
                <lb/>
              Seas.
                <emph.end type="italics"/>
              </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg784"/>
                <emph type="italics"/>
              Another
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              tion taken from the
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              Air in
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              on of the motion of
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              the Earth.
                <emph.end type="italics"/>
              </s>
            </p>
            <p type="main">
              <s>SAGR. </s>
              <s>I alſo for a final cloſe will relate to you one particular,
                <lb/>
              which as I believe is unknown unto you, and which likewiſe may
                <lb/>
              ſerve to confirm the ſame concluſion: You
                <emph type="italics"/>
              Salviatus
                <emph.end type="italics"/>
              alledged,
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              That Accident which Sailers meet with between the Tropicks;
                <lb/>
              I mean that perpetual Gale of Winde that beats upon them from
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              the Eaſt, of which I have an account from thoſe that have many
                <lb/>
              times made the Voyage: And moreover (which is very
                <lb/>
              vable) I underſtand that the Mariners do not call it a
                <emph type="italics"/>
              Wind,
                <emph.end type="italics"/>
              but </s>
            </p>
            <p type="main">
              <s>
                <arrow.to.target n="marg785"/>
                <lb/>
              by another ^{*} name, which I do not now remember, taken haply
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              from its ſo fixed and conſtant Tenor; which when they have met
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              with, they tie up their ſhrouds and other cordage belonging to
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              the Sails, and without any more need of touching them, though
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              they be in a ſleep, they can continue their courſe. </s>
              <s>Now this conſtant
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              Trade-wind was known to be ſuch by its continual blowing
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              out interruptions; for if it were interrupted by other Windes, it
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              would not have been acknowledged for a ſingular Effect, and
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              different from the reſt: from which I wlll infer, That it may be
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              that alſo our Mediterranean Sea doth partake of the like accident;
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              but it is not obſerved, as being frequently altered by the
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              ence of other windes. </s>
              <s>And this I ſay, not without good grounds,
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              yea upon very probable conjectures whch came unto my
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              ledge, from that which tendred it ſelf to my notice on occaſion of
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              the voyage that I made into
                <emph type="italics"/>
              Syria,
                <emph.end type="italics"/>
              going Conſul for this Nation </s>
            </p>
          </chap>
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