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

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      <text>
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            <p type="main">
              <s>
                <pb xlink:href="040/01/319.jpg" pagenum="299"/>
              underſtand that we ſhould very commodiouſly ſalve all the
                <emph type="italics"/>
                <lb/>
              nomena
                <emph.end type="italics"/>
              of theſe two Planets, with two Circles, in like manner,
                <lb/>
              drawn about the Sun, and this firſt for
                <emph type="italics"/>
              Jupiter,
                <emph.end type="italics"/>
              marking it E L, and
                <lb/>
              another above that for
                <emph type="italics"/>
              Saturn
                <emph.end type="italics"/>
              marked F
                <lb/>
                <arrow.to.target n="marg532"/>
              </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg530"/>
              Mars
                <emph type="italics"/>
              at its
                <lb/>
              ſition to the Sun
                <lb/>
              ſhews to be ſixty
                <lb/>
              times bigger than
                <lb/>
              towards the
                <lb/>
              junction.
                <emph.end type="italics"/>
              </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg531"/>
              Jupiter
                <emph type="italics"/>
              and
                <emph.end type="italics"/>
                <lb/>
              turn
                <emph type="italics"/>
              do likewiſe
                <lb/>
              compaſſe the Earth,
                <lb/>
              and the Sun.
                <emph.end type="italics"/>
              </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg532"/>
                <emph type="italics"/>
              The
                <lb/>
              tion and receſſion of
                <lb/>
              the three ſuperiour
                <lb/>
              Planets, importeth
                <lb/>
              double the Suns
                <lb/>
              ſtance.
                <emph.end type="italics"/>
              </s>
            </p>
            <p type="main">
              <s>SALV. </s>
              <s>You have behaved your ſelf bravely hitherto. </s>
              <s>And
                <lb/>
              becauſe (as you ſee) the approach and receſſion of the three
                <lb/>
              periour Planets is meaſured with double the diſtance between the
                <lb/>
              Earth and Sun, this maketh greater difference in
                <emph type="italics"/>
              Mars
                <emph.end type="italics"/>
              than in
                <emph type="italics"/>
              Ju-
                <emph.end type="italics"/>
              </s>
            </p>
            <p type="main">
              <s>
                <arrow.to.target n="marg533"/>
                <lb/>
                <emph type="italics"/>
              piter,
                <emph.end type="italics"/>
              the Circle D I, of
                <emph type="italics"/>
              Mars,
                <emph.end type="italics"/>
              being leſſer than the Circle E L,
                <lb/>
              of
                <emph type="italics"/>
              Jupiter,
                <emph.end type="italics"/>
              and likewiſe becauſe this E L, is leſſe than this Circle
                <lb/>
              F M, of
                <emph type="italics"/>
              Saturn,
                <emph.end type="italics"/>
              the ſaid difference is alſo yet leſſer in
                <emph type="italics"/>
              Saturn
                <emph.end type="italics"/>
              than
                <lb/>
              in
                <emph type="italics"/>
              Jupiter,
                <emph.end type="italics"/>
              and that punctually anſwereth the
                <emph type="italics"/>
              Phænomena.
                <emph.end type="italics"/>
                <lb/>
              It remains now that you aſſign a place to the Moon.</s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg533"/>
                <emph type="italics"/>
              The difference of
                <lb/>
              the apparent
                <lb/>
              nitude leſſe in
                <emph.end type="italics"/>
                <lb/>
              turn,
                <emph type="italics"/>
              than in
                <emph.end type="italics"/>
                <lb/>
              ter,
                <emph type="italics"/>
              an dn
                <emph.end type="italics"/>
              Jupiter
                <lb/>
                <emph type="italics"/>
              than in
                <emph.end type="italics"/>
              Mars,
                <emph type="italics"/>
              and
                <lb/>
              why.
                <emph.end type="italics"/>
              </s>
            </p>
            <p type="main">
              <s>SIMP. </s>
              <s>Following the ſame Method (which ſeems to me very
                <lb/>
                <arrow.to.target n="marg534"/>
                <lb/>
              concluſive) in regard we ſee that the Moon cometh to conjunction
                <lb/>
              and oppoſition with the Sun, it is neceſſary to ſay, that its circle
                <lb/>
              encompaſſeth the Earth, but yet doth it not follow, that it muſt
                <lb/>
              environ the Sun, for then at that time towards its conjunction, it
                <lb/>
              would not ſeem horned, but alwayes round and full of Light.
                <lb/>
              </s>
              <s>Moreover it could never make, as it often doth, the Eclipſe of the
                <lb/>
              Sun, by interpoſing betwixt it and us; It is neceſſary therefore
                <lb/>
              to aſſign it a circle about the Earth, which ſhould be this N P, ſo
                <lb/>
              that being conſtituted in P, it will appear from the Earth A, to be
                <lb/>
              in conjunction with the Sun, and placed in N, it appeareth oppoſite
                <lb/>
              to the Sun, and in that poſition it may fall under the Earths
                <lb/>
              dow, and be obſcured.</s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg534"/>
                <emph type="italics"/>
              The Moons Orb
                <lb/>
              invironeth the
                <lb/>
              Earth, but not the
                <lb/>
              Sun.
                <emph.end type="italics"/>
              </s>
            </p>
            <p type="main">
              <s>SALV. Now,
                <emph type="italics"/>
              Simplicius,
                <emph.end type="italics"/>
              what ſhall we do with the fixed
                <lb/>
              ſtars? </s>
              <s>Shall we ſuppoſe them ſcattered through the immenſe
                <lb/>
              ſes of the Univerſe, at different diſtances, from any one
                <lb/>
              nate point; or elſe placed in a ſuperficies ſpherically diſtended
                <lb/>
              bout a centre of its own, ſo that each of them may be
                <lb/>
              diſtant from the ſaid
                <lb/>
                <arrow.to.target n="marg535"/>
              </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg535"/>
                <emph type="italics"/>
              The probable
                <lb/>
              ſituation of the
                <lb/>
              fixed ſtars.
                <emph.end type="italics"/>
              </s>
            </p>
            <p type="main">
              <s>SIMP. </s>
              <s>I would rather take a middle way; and would aſſign
                <lb/>
              them an Orb deſcribed about a determinate centre and comprized
                <lb/>
              within two ſpherical ſuperficies, to wit, one very high, and
                <lb/>
              cave, and the other lower, and convex, betwixt which I would </s>
            </p>
            <p type="main">
              <s>
                <arrow.to.target n="marg536"/>
                <lb/>
              conſtitute the innumerable multitude of ſtars, but yet at divers
                <lb/>
              titudes, and this might be called the Sphere of the Univerſe,
                <lb/>
              ing within it the Orbs of the planets already by us deſcribed.</s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg536"/>
                <emph type="italics"/>
              Which ought to
                <lb/>
              be accounted the
                <lb/>
              ſphere of the
                <lb/>
              verſe.
                <emph.end type="italics"/>
              </s>
            </p>
            <p type="main">
              <s>SALV. </s>
              <s>But now we have all this while,
                <emph type="italics"/>
              Simplicius,
                <emph.end type="italics"/>
              diſpoſed the
                <lb/>
              mundane bodies exactly, according to the order of
                <emph type="italics"/>
              Copernicus,
                <emph.end type="italics"/>
                <lb/>
              and we have done it with your hand; and moreover to each of
                <lb/>
              them you have aſſigned peculiar motions of their own, except to
                <lb/>
              the Sun, the Earth, and ſtarry Sphere; and to
                <emph type="italics"/>
              Mercury
                <emph.end type="italics"/>
              with
                <lb/>
                <emph type="italics"/>
              Venus,
                <emph.end type="italics"/>
              you have aſcribed the circular motion about the Sun, </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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