Bacon, Francis, Sylva sylvarum : or, a natural history in ten centuries

Table of figures

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            <s xml:id="echoid-s2579" xml:space="preserve">
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            more than Beaſts; </s>
            <s xml:id="echoid-s2580" xml:space="preserve">becauſe naturally they are more delighted with them,
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            and practiſe them more, as appeareth in their Singing. </s>
            <s xml:id="echoid-s2581" xml:space="preserve">We ſee alſo, that
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            thoſe that teach Birds to ſing, do keep them waking, to increaſe their
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            attention. </s>
            <s xml:id="echoid-s2582" xml:space="preserve">We ſee alſo, that Cock-Birds, amongſt Singing-Birds, are ever
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            the better ſingers, which may be, becauſe they are more lively, and liſten
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            more.</s>
            <s xml:id="echoid-s2583" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s2584" xml:space="preserve">Labor and Intention to imitate Voices, doth conduce muchto Imitation:
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            </s>
            <s xml:id="echoid-s2585" xml:space="preserve">
              <note position="left" xlink:label="note-0090-01" xlink:href="note-0090-01a" xml:space="preserve">240.</note>
            And therefore we ſee, that there be certain Pantomimi, that will repreſent
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            the Voices of Players of Interludes, ſo to life, as if you ſee them not, you
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            would think they were thoſe Players themſelves, and ſo the Voices of other
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            men that they hear.</s>
            <s xml:id="echoid-s2586" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s2587" xml:space="preserve">There have been ſome that could counterfeit the diſtance of Voices,
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              <note position="left" xlink:label="note-0090-02" xlink:href="note-0090-02a" xml:space="preserve">241.</note>
            (which is a ſecondary object of Hearing) in ſuch ſort; </s>
            <s xml:id="echoid-s2588" xml:space="preserve">as when they ſtand
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            faſt by you, you would think the Speech came from afar off, in a fearful
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            manner. </s>
            <s xml:id="echoid-s2589" xml:space="preserve">How this is done, may be further enquired; </s>
            <s xml:id="echoid-s2590" xml:space="preserve">but I ſee no greatuſe
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            of it, but for Impoſture, in counterfeiting ghoſts or ſpirits.</s>
            <s xml:id="echoid-s2591" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s2592" xml:space="preserve">THere be three kindes of Reflexions of Sounds; </s>
            <s xml:id="echoid-s2593" xml:space="preserve">a Reflexion Concurrent, a Re-
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              <note position="left" xlink:label="note-0090-03" xlink:href="note-0090-03a" xml:space="preserve">Experiments
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              in Conſort,
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              touching the
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              Reflexion of
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              Sounds.</note>
            flexion Iterant, which we call Eccho, and a Super-reflexion, or an Eccho of an
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            Eccho, whereof the firſt hath been handled in the Title of Magnitude of
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            Sounds. </s>
            <s xml:id="echoid-s2594" xml:space="preserve">The latter two we will now ſpeak of.</s>
            <s xml:id="echoid-s2595" xml:space="preserve"/>
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          <p>
            <s xml:id="echoid-s2596" xml:space="preserve">The Reflexion of Species Viſible by Mirrors, you may command, becauſe
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              <note position="left" xlink:label="note-0090-04" xlink:href="note-0090-04a" xml:space="preserve">242.</note>
            paſſing it Right Lines, they may be guided to any point: </s>
            <s xml:id="echoid-s2597" xml:space="preserve">But the Reflexion
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            of Sounds, is hard to maſter; </s>
            <s xml:id="echoid-s2598" xml:space="preserve">becauſe the ſound filling great ſpaces in arched
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            Lines, cannot be ſo guided. </s>
            <s xml:id="echoid-s2599" xml:space="preserve">And therefore, we ſee there hath not been
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            practiſed any means to make Artificial Eccho’s. </s>
            <s xml:id="echoid-s2600" xml:space="preserve">And no Eccho already
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            known, returneth in a very narrow room.</s>
            <s xml:id="echoid-s2601" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s2602" xml:space="preserve">The Natural Eccho’s are made upon Walls, Woods, Rocks, Hills, and
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              <note position="left" xlink:label="note-0090-05" xlink:href="note-0090-05a" xml:space="preserve">243.</note>
            Banks: </s>
            <s xml:id="echoid-s2603" xml:space="preserve">As for Waters being near, they make a Concurrent Eccho; </s>
            <s xml:id="echoid-s2604" xml:space="preserve">but
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            being further off, (as upon a large River) they make an Interant Eccho:
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            </s>
            <s xml:id="echoid-s2605" xml:space="preserve">Forthere is no difference between the Concurrent Eccho, and the Iterant,
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            but the quickneſs or ſlowneſs of the return. </s>
            <s xml:id="echoid-s2606" xml:space="preserve">But there is no doubt, but Wa-
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            ter doth help the Delation of Eccho, as well as it helpeth the Delation of
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            Original Sounds.</s>
            <s xml:id="echoid-s2607" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s2608" xml:space="preserve">It is certain (as hath been formerly touched,) that if you ſpeak thorow
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              <note position="left" xlink:label="note-0090-06" xlink:href="note-0090-06a" xml:space="preserve">244.</note>
            a Trunck, ſtopped at the further end, you ſhall finde a blaſt return upon your
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            mouth, but no ſound at all. </s>
            <s xml:id="echoid-s2609" xml:space="preserve">The cauſeis, for that the cloſeneſs, which pre-
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            ſerveth the original, is not able to preſerve the reflected ſound; </s>
            <s xml:id="echoid-s2610" xml:space="preserve">beſides that,
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            Eccho’s are ſeldom created, but by loud Sounds. </s>
            <s xml:id="echoid-s2611" xml:space="preserve">And therefore there is
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            leſs hope of Artificial Eccho’s in Air, pentin a narrow concave. </s>
            <s xml:id="echoid-s2612" xml:space="preserve">Neverthe-
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            leſs it hath been tryed, that one leaning over a Well of Twenty five fathom
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            deep, and ſpeaking, though but ſoftly, (yet not ſo ſoft as a whiſper) the
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            Water returned a good audible Eccho. </s>
            <s xml:id="echoid-s2613" xml:space="preserve">It would be tryed, whether ſpeaking
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            in Caves, where there is no iſſue, ſave where you ſpeak, will not yield Eccho’s
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            as Wells do.</s>
            <s xml:id="echoid-s2614" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s2615" xml:space="preserve">The Eccho cometh as the Original Sound doth in a round orb of Air:
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            </s>
            <s xml:id="echoid-s2616" xml:space="preserve">
              <note position="left" xlink:label="note-0090-07" xlink:href="note-0090-07a" xml:space="preserve">245.</note>
            It were good to try the creating of the Eccho, where the Body repercuſſing
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            maketh an Angle: </s>
            <s xml:id="echoid-s2617" xml:space="preserve">As againſt the Return of a Wall, &</s>
            <s xml:id="echoid-s2618" xml:space="preserve">c. </s>
            <s xml:id="echoid-s2619" xml:space="preserve">Alſo we ſee that
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            in Mirrors, there is the like Angle of Incidence, from the Object to the
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            Glaſs, and from the Glaſs to the Eye. </s>
            <s xml:id="echoid-s2620" xml:space="preserve">And if you ſtrike a Ball ſide-long, not
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            full upon the Surface, the rebound will be as much the contrary way; </s>
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