Galilei, Galileo, The systems of the world, 1661

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    <archimedes>
      <text>
        <body>
          <chap>
            <pb xlink:href="065/01/064.jpg" pagenum="58"/>
            <p type="main">
              <s>SAGR. </s>
              <s>Why look you, there it is upon the oppoſite Wall, juſt
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              as big as the Glaſſe, and little leſſe bright than if the Sun had
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              directly ſhined upon it.</s>
            </p>
            <p type="main">
              <s>SIMPL. </s>
              <s>Come hither therefore, and ſee from hence the
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              face of the Glaſſe, and tell me whether you think it more
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              ſcure than that of the Wall.</s>
            </p>
            <p type="main">
              <s>SAGR. </s>
              <s>Look on it your ſelf, for I have no mind at this time,
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              to dazle my eyes; and I know very well, without ſeeing it,
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              that it there appears as ſplendid and bright as the Sun it ſelf, or
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              little leſſe.</s>
            </p>
            <p type="main">
              <s>SIMPL. </s>
              <s>What ſay you therefore, is the reflection of a Glaſſe
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              leſſe powerful than that of a Wall? </s>
              <s>I ſee, that in this oppoſite
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              Wall, where the reflection of the other illuminated Wall comes,
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              together with that of the Glaſſe, this of the Glaſſe is much
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              clearer; and I ſee likewiſe, that, from this place where I ſtand,
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              the glaſſe it ſelf appears with much more luſtre than the Wall.</s>
            </p>
            <p type="main">
              <s>SALV. </s>
              <s>You have prevented me with your ſubtlety; for I ſtood
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              in need of this very obſervation to demonſtrate what remains.
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              </s>
              <s>You ſee then the difference which happens betwixt the two
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              ctions made by the two ſuperficies of the Wall and Glaſſe,
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              cu'ſt in the ſelf-ſame manner, by the rayes of the Sun; and you
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              ſee, how the reflection which comes from the Wall, diffuſeth it
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              ſelf towards all the parts oppoſite to it, but that of the Glaſſe
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              goeth towards one part onely, not at all bigger than the Glaſſe
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              it ſelf: you ſee likewiſe, how the ſuperficies of the Wall, beheld
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              from what part ſoever, alwayes ſhews it ſelf of one and the ſame
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              cleerneſſe, and every way, much clearer than that of the Glaſſe,
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              excepting only in that little place, on which the Glaſſes reflection
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              reverberates, for from thence indeed the Glaſſe appears much more
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              lucid than the Wall. </s>
              <s>By theſe ſo ſenſible, and palpable
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              ments, my thinks one may ſoon come to know, whether the
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              reflection which the Moon ſends upon us, proceed as from a
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              Glaſſe, or elſe, as from a Wall, that is, from a ſmooth
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              cies, or a rugged.</s>
            </p>
            <p type="main">
              <s>SAGR. </s>
              <s>If I were in the Moon it ſelf, I think I could not with
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              my hands more plainly feel the unevenneſſe of its ſuperficies, than
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              I do now perceive it, by apprehending your diſcourſe. </s>
              <s>The Moon
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              beheld in any poſture, in reſpect of the Sun and us, ſheweth us
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              its ſuperficies, touch't by the Suns rayes, alwayes equally clear;
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              an effect, which anſwers to an hair that of the Wall, which
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              held from what place ſoever, appeareth equally bright, and
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              fereth from the Glaſſe, which from one place onely appeareth
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              cid, and from all others obſcure. </s>
              <s>Moreover, the light which
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              cometh to me from the reflection of the Wall, is tollerable,
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              and weak, in compariſon of that of the Glaſſe, which is little </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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