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

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            <p type="main">
              <s>
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              ties of the Planets motions, with theſe two new ſuppoſitions, all
                <lb/>
              which things jumpt exactly with his purpoſe; and ſeeing the whole
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              correſpond, with admirable facility to its parts, he imbraced this
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              new Syſteme, and it took up his reſt.</s>
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            <p type="margin">
              <s>
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              Copernicus
                <emph type="italics"/>
                <lb/>
              ſtored Aſtronomy
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              upon the
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              ous of
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              Ptolomy:</s>
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            <p type="margin">
              <s>
                <margin.target id="marg568"/>
                <emph type="italics"/>
              What moved
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              pernicus
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              to
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              bliſh his Syſteme.
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              </s>
            </p>
            <p type="main">
              <s>SIMP. </s>
              <s>But what great exorbitancies are there in the
                <emph type="italics"/>
                <lb/>
              maick
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              Syſteme, for which there are not greater to be found in this
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              of
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              Copernicus
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              ?</s>
            </p>
            <p type="main">
              <s>SALV. </s>
              <s>In the
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              Ptolomaick Hypotheſis
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              there are diſeaſes, and in
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                <arrow.to.target n="marg569"/>
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              the
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              Copernican
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              their cures. </s>
              <s>And firſt will not all the Sects of
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                <emph type="italics"/>
              Phyloſophers,
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              account it a great inconvenience, that a body
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              turally moveable in circumgyration, ſhould move irregularly upon
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              its own Centre, and regularly upon another point? </s>
              <s>And yet
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              there are ſuch deformed motions as theſe in the
                <emph type="italics"/>
              Ptolomæan
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              theſis, but in the
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              Copernican
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              all move evenly about their own
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              Centres. </s>
              <s>In the
                <emph type="italics"/>
              Ptolomaick,
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              it is neceſſary to aſſign to the
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              leſtial bodies, contrary motions, and to make them all to move,
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              from Eaſt to Weſt, and at the ſame time, from Weſt to Eaſt;
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              But in the
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              Copernican,
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              all the Cæleſtial revolutions are towards
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              one onely way, from Weſt to Eaſt. </s>
              <s>But what ſhall we ſay of
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              the apparent motion of the Planets, ſo irregular, that they not
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              ly go one while ſwift, and another while ſlow, but ſometimes
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              wholly ſeace to move; and then after a long time return back
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              gain? </s>
              <s>To ſalve which appearances
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              Ptolomie
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              introduceth very great
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                <emph type="italics"/>
              Epicicles,
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              accommodating them one by one to each Planet, with
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              ſome rules of incongruous motions, which are all with one
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              gle motion of the Earth taken away. </s>
              <s>And would not you,
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              plicius,
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              call it a great abſurditie, if in the
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              Ptolomaick
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                <lb/>
              ſis, in which the particular Planets, have their peculiar Orbs
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              ſigned them one above another, one muſt be frequently forced
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              to ſay, that
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              Mars,
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              conſtituted above the Sphære of the Sun, doth
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              ſo deſcend, that breaking the Solar Orb, it goeth under it, and
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              approacheth neaer to the Earth, than to the Body of the Sun,
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              and by and by immeaſurably aſcendeth above the ſame? </s>
              <s>And
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              yet this, and other exorbitancies are remedied by the Soul and
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              fingle annual motion of the Earth.</s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg569"/>
                <emph type="italics"/>
              Inconveniencies
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              that are in the
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              ſteme of
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              Ptolomy.</s>
            </p>
            <p type="main">
              <s>SAGR. </s>
              <s>I would gladly be bettter informed how theſe ſtations,
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              and retrograde and direct motions, which did ever ſeem to me
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              great improbalities, do accord in this
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              Copernican
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                <lb/>
                <arrow.to.target n="marg570"/>
              </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg570"/>
                <emph type="italics"/>
              Its a great
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              gument in favour
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              of
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              Copernicus,
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              that
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              he obviates the
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              tions &
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              tions of the motions
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              of the Planets.
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              </s>
            </p>
            <p type="main">
              <s>SALV. </s>
              <s>You ſhall ſee them ſo to accord,
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              Sagredus,
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              that
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              this onely conjecture ought to be ſufficient to make one that
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              is not more than pertinacious or ſtupid, yield, aſſent to all the
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              reſt of this Doctrine. </s>
              <s>I tell you therefore, that nothing being
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              altered in the motion of
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              Saturn,
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              which is 30 years, in that
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              of
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              Jupiter,
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              which is 12, in that of
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              Mars,
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              which is 2, in that of
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                <emph type="italics"/>
              Venus,
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              which is 9. moneths, in that of
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              Mercury,
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              which is 80. </s>
            </p>
          </chap>
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