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

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            <pb xlink:href="040/01/361.jpg" pagenum="341"/>
            <p type="main">
              <s>SIMP. No: For the point would be changed, and would be
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              beneath the ſtar firſt obſerved.</s>
            </p>
            <p type="main">
              <s>SAGR. </s>
              <s>You are in the right. </s>
              <s>Now like as that which in this
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              example anſwereth to the elevation of the Top-Gallant-Top, is
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              not the ſtar, but the point of the Firmament that lyeth in a right
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              line with the eye, and the ſaid top of the Maſt, ſo in the caſe
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              exemplified, that which in the Firmament anſwers to the Pole
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              of the Earth, is not a ſtar, or other fixed thing in the
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              ment; but is that point in which the Axis of the Earth
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              ed ſtreight out, till it cometh thither doth determine, which point
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              is not fixed, but obeyeth the mutations that the Pole of the
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              Earth doth make. </s>
              <s>And therefore
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              Tycho,
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              or who ever elſe that
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                <arrow.to.target n="marg644"/>
                <lb/>
              did alledg this objection, ought to have ſaid that upon that
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              ſame motion of the Earth, were it true, one might obſerve ſome
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              difference in the elevation and depreſſion (not of the Pole, but)
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              of ſome fixed ſtar toward that part which anſwereth to our Pole.</s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg644"/>
                <emph type="italics"/>
              Upon the
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              al motion of the
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              Earth, alteration
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              may enſue in
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              ſome fixed ſtar,
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              not in the Pole.
                <emph.end type="italics"/>
              </s>
            </p>
            <p type="main">
              <s>SIMP. </s>
              <s>I already very well underſtand the miſtake by them
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              committed; but yet therefore (which to me ſeems very great) of
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              the argument brought on the contrary is not leſſened,
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              ſing relation to be had to the variation of the ſtars, and not of
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              the Pole; for if the moving of the Ship but 60. miles, make a
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              fixed ſtar riſe to me one degree, ſhall I not find alike, yea and
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              very much greater mutation, if the Ship ſhould ſail towards the
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              ſaid ſtar for ſo much ſpace as is the Diameter of the Grand
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              Orb, which you affirm to be double the diſtance that is between
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              the Earth and Sun?</s>
            </p>
            <p type="main">
              <s>SAGR. </s>
              <s>Herein
                <emph type="italics"/>
              Simplicius,
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              there is another fallacy, which,
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                <arrow.to.target n="marg645"/>
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              truth is, you underſtand, but do not upon the ſudden think of
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              the ſame, but I will try to bring it to your remembrance: Tell
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              me therefore; if when after you have directed the Quadrant to
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              a fixed ſtar, and found
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              v. </s>
              <s>g.
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              its elevation to be 40. degrees,
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              you ſhould without ſtirring from the place, incline the ſide of
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              the Ouadrant, ſo as that the ſtar might remain elevated above
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              that direction, would you thereupon ſay that the ſtar had
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              red greater elevation?</s>
            </p>
            <p type="margin">
              <s>
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                <emph type="italics"/>
              The equivoke of
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              thoſe who believe
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              that in the annual
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              motion great
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              tations are to be
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              made about the
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              elevation of a
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              ed ſtar, is
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              ted.
                <emph.end type="italics"/>
              </s>
            </p>
            <p type="main">
              <s>SIMP. </s>
              <s>Certainly no: For the mutation was made in the
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              ſtrument and not in the Obſerver, that did change place,
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              ving towards the ſame.</s>
            </p>
            <p type="main">
              <s>SAGR. </s>
              <s>But if you ſail or walk along the ſurface of the
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              ſtrial Globe, will you ſay that there is no alteration made in the
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              ſaid Quadrant, but that the ſame elevarion is ſtill retained in
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              ſpect of the Heavens, ſo long as you your ſelf do not incline it,
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              but let it ſtand at its firſt conſtitution?</s>
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            <p type="main">
              <s>SIMP. </s>
              <s>Give me leave to think of it. </s>
              <s>I would ſay without
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              more ado, that it would not retain the ſame, in regard the </s>
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          </chap>
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