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

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        <div xml:id="echoid-div133" type="section" level="1" n="21">
          <pb o="34" file="0068" n="68" rhead="Natural Hiſtory;"/>
          <p>
            <s xml:id="echoid-s1748" xml:space="preserve">There is a conceit runneth abroad, that there ſhould be a White Powder,
              <lb/>
              <note position="left" xlink:label="note-0068-01" xlink:href="note-0068-01a" xml:space="preserve">120.</note>
            which will diſcharge a piece without noiſe, which is a dangerous experi-
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              <handwritten xlink:label="hd-0068-1" xlink:href="hd-0068-1a" number="71"/>
              <handwritten xlink:label="hd-0068-1" xlink:href="hd-0068-1a" number="72"/>
              <handwritten xlink:label="hd-0068-1" xlink:href="hd-0068-1a" number="73"/>
            ment, if it ſhould be true: </s>
            <s xml:id="echoid-s1749" xml:space="preserve">For it may cauſe ſecret Murthers, but it ſeemeth
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            to me unpoſſible; </s>
            <s xml:id="echoid-s1750" xml:space="preserve">for if the Air pent, be driven forth and ſtrike the Air open,
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            it will certainly make a noiſe. </s>
            <s xml:id="echoid-s1751" xml:space="preserve">As for the White Powder, (if any ſuch
              <lb/>
            thing be that may extinguiſh or dead the noiſe) it is like to be a mixture
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            of Petre and Sulphure, without Coal. </s>
            <s xml:id="echoid-s1752" xml:space="preserve">For Petre alone will not take Fire.
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            </s>
            <s xml:id="echoid-s1753" xml:space="preserve">And if any Man think, that the ſound may be extinguiſhed or deaded, by
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            diſcharging the pent Air, before it cometh to the Mouth of the Peece, and
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            to the open Air, that is not probable; </s>
            <s xml:id="echoid-s1754" xml:space="preserve">for it will make more divided ſounds: </s>
            <s xml:id="echoid-s1755" xml:space="preserve">
              <lb/>
            As if you ſhould make a Croſs-barrel hollow, thorow the Barrel of a
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            Peece, it may be it would give ſeveral ſounds, both at the Noſe and the
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            ſides. </s>
            <s xml:id="echoid-s1756" xml:space="preserve">But I conceive, that if it were poſſible to bring to paſs, that there
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            ſhould be no Air pent at the Mouth of the Peece, the Bullet might flie
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            with ſmall or no noiſe. </s>
            <s xml:id="echoid-s1757" xml:space="preserve">For firſt it is certain, there is no noiſe in the Per-
              <lb/>
            cuſſion of the Flame upon the Bullet. </s>
            <s xml:id="echoid-s1758" xml:space="preserve">Next the Bullet, in piercing tho-
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            row the Air, maketh no noiſe, as hath been ſaid; </s>
            <s xml:id="echoid-s1759" xml:space="preserve">and then, if there be no
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            pent Air, that ſtriketh upon open Air, there is no cauſe of noiſe, and yet the
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            flying of the Bullet will not be ſtaid. </s>
            <s xml:id="echoid-s1760" xml:space="preserve">For that motion (as hath been oft
              <lb/>
            ſaid) is in the parts of the Bullet, and not in the Air. </s>
            <s xml:id="echoid-s1761" xml:space="preserve">So as tryal muſt be
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            made by taking ſome ſmall Concave of Minal, no more than you mean to
              <lb/>
            fill with Powder, and laying the Bullet in the Mouth of it half out in the
              <lb/>
              <handwritten xlink:label="hd-0068-1" xlink:href="hd-0068-1a" number="71"/>
              <handwritten xlink:label="hd-0068-1" xlink:href="hd-0068-1a" number="72"/>
              <handwritten xlink:label="hd-0068-1" xlink:href="hd-0068-1a" number="73"/>
            open Air.</s>
            <s xml:id="echoid-s1762" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s1763" xml:space="preserve">I heard it affirmed by a Man that was a great dealer in Secrets, but he
              <lb/>
              <note position="left" xlink:label="note-0068-02" xlink:href="note-0068-02a" xml:space="preserve">121.</note>
            was but vain; </s>
            <s xml:id="echoid-s1764" xml:space="preserve">That there was a Conſpiracy (which himſelf hindred) to have
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            killed Queen Mary, Siſter to Queen Elizabeth, by a Burning-Glaß, when ſhe
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            walked in St. </s>
            <s xml:id="echoid-s1765" xml:space="preserve">James Park, from the Leads of the Houſe. </s>
            <s xml:id="echoid-s1766" xml:space="preserve">But thus much, no
              <lb/>
            doubt, is true, That if Burning-Glaſſes could be brought to a great ſtrength,
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            (as they talk generally of Burning-Glaſſes, that are able to burn a Navy) the
              <lb/>
            Percuſſion of the Air alone, by ſuch a Burning-Glaß, would make no
              <lb/>
            noiſe; </s>
            <s xml:id="echoid-s1767" xml:space="preserve">no more than is found in Corruſcations, and Lighinings without
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            T
              <unsure/>
            hunders.</s>
            <s xml:id="echoid-s1768" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s1769" xml:space="preserve">I ſuppoſe that Impreßion of the Air with Sounds, asketh a time to be con-
              <lb/>
              <note position="left" xlink:label="note-0068-03" xlink:href="note-0068-03a" xml:space="preserve">122.</note>
            veighed to the Senſe, as well as the Impreßion of Species viſible, or elſe they will
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              <handwritten xlink:label="hd-0068-1" xlink:href="hd-0068-1a" number="71"/>
              <handwritten xlink:label="hd-0068-1" xlink:href="hd-0068-1a" number="72"/>
              <handwritten xlink:label="hd-0068-1" xlink:href="hd-0068-1a" number="73"/>
            not be heard. </s>
            <s xml:id="echoid-s1770" xml:space="preserve">And thereſore, as the Bullet moveth ſo ſwiſt, that it is inviſible,
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            ſo the ſame ſwiftneſs of motion maketh it inaudible; </s>
            <s xml:id="echoid-s1771" xml:space="preserve">for we ſee that the ap-
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            prehenſion of the Eye, is quicker then that of the Ear.</s>
            <s xml:id="echoid-s1772" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s1773" xml:space="preserve">All Eruptions of Air, though fmall and ſlight, give an entity of ſound,
              <lb/>
              <note position="left" xlink:label="note-0068-04" xlink:href="note-0068-04a" xml:space="preserve">123.</note>
            which we call Crackling, Puffing, Spiting, &</s>
            <s xml:id="echoid-s1774" xml:space="preserve">c. </s>
            <s xml:id="echoid-s1775" xml:space="preserve">As in Bay ſalt, and Bay-leaves
              <lb/>
            caſt into the fire; </s>
            <s xml:id="echoid-s1776" xml:space="preserve">ſo in Cheſnuts, when they leap forth of the Aſhes, ſo in
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            green wood laid upon the fire, eſpecially Roots; </s>
            <s xml:id="echoid-s1777" xml:space="preserve">ſo in Candles that ſpit
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            flame, if they be wet; </s>
            <s xml:id="echoid-s1778" xml:space="preserve">ſoin Raſping, Sneezing, &</s>
            <s xml:id="echoid-s1779" xml:space="preserve">c. </s>
            <s xml:id="echoid-s1780" xml:space="preserve">Soin a R oſe leaf gather-
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            ed together into the faſhion of a Purſe, and broken upon the Forehead, or
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            Back of the Hand, as Children uſe.</s>
            <s xml:id="echoid-s1781" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s1782" xml:space="preserve">THe cauſe given of Sound, that it ſhould be an Eliſion of the Air (where-
              <lb/>
              <note position="left" xlink:label="note-0068-05" xlink:href="note-0068-05a" xml:space="preserve">124.</note>
            by, if they mean any thing, they mean Cutting or Dividing, or elſe an
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              <note position="left" xlink:label="note-0068-06" xlink:href="note-0068-06a" xml:space="preserve">Experiments
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              in Con ſort,
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              touching
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              Production,
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              Conſervation,
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              and Delation
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              of Sounds; and
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              the office of the
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              Air thersin.</note>
            Attenuating of the Air) is but a term of Ignorance; </s>
            <s xml:id="echoid-s1783" xml:space="preserve">and the motion is
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            but a catch of the Wit upon a few Inſtances, as the manner is in the
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            Philoſophy received. </s>
            <s xml:id="echoid-s1784" xml:space="preserve">And it is common with Men, that if they have gotten
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            a pretty expreſſion by a word of Art, that expreſſion goeth currant, though
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            it be empty of matter. </s>
            <s xml:id="echoid-s1785" xml:space="preserve">This conceit of Eliſion, appeareth moſt </s>
          </p>
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