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="39" file="0073" n="73" rhead="Century II."/>
          <p>
            <s xml:id="echoid-s1939" xml:space="preserve">There is a Church at Gloceſter, (and as I have heard, the like is in ſome
              <lb/>
              <note position="right" xlink:label="note-0073-01" xlink:href="note-0073-01a" xml:space="preserve">148.</note>
            other places) where if you ſpeak againſt a Wall ſoftly, another ſhall hear
              <lb/>
            your voice better a good way off, than near hand. </s>
            <s xml:id="echoid-s1940" xml:space="preserve">Inquire more particu-
              <lb/>
            larly of the fame of that place. </s>
            <s xml:id="echoid-s1941" xml:space="preserve">I ſuppoſe there is ſome Vault, or Hollow,
              <lb/>
            or lſle, behinde the Wall, and ſome paſſage to it, to wards the further end of
              <lb/>
            that Wall againſt which you ſpeak: </s>
            <s xml:id="echoid-s1942" xml:space="preserve">So as the voice of him that ſpeaketh
              <lb/>
            ſlideth along the Wall, and then entreth at ſome paſſage, and communi-
              <lb/>
            cateth with the Air of the Hollow; </s>
            <s xml:id="echoid-s1943" xml:space="preserve">for it is preſerved ſomewhat by the
              <lb/>
            plain Wall; </s>
            <s xml:id="echoid-s1944" xml:space="preserve">but that is too weak to give a Sound audible, tillit hath com-
              <lb/>
            municated with the back Air.</s>
            <s xml:id="echoid-s1945" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s1946" xml:space="preserve">Strike upon a Bow-ſtring, and lay the Horn of the Bow near your Ear,
              <lb/>
              <note position="right" xlink:label="note-0073-02" xlink:href="note-0073-02a" xml:space="preserve">149.</note>
            and it will increaſe the Sound, and make a degree of a Tone. </s>
            <s xml:id="echoid-s1947" xml:space="preserve">The cauſe is
              <lb/>
            for that the ſenſory, by reaſon of the cloſe holding is percuſſed, before the
              <lb/>
            Air diſperſeth. </s>
            <s xml:id="echoid-s1948" xml:space="preserve">The like is, if you hold the Horn betwixt your Teeth. </s>
            <s xml:id="echoid-s1949" xml:space="preserve">But
              <lb/>
            that is a plain Dilation of the Sound, from the Teeth to the Inſtrument of Hear-
              <lb/>
            ing; </s>
            <s xml:id="echoid-s1950" xml:space="preserve">for there is a great entercourſe between thoſe two parts, as appeareth
              <lb/>
            by this, that a harſh grating Tuneſetteth the Teeth one edge. </s>
            <s xml:id="echoid-s1951" xml:space="preserve">The like
              <lb/>
            falleth out, if the Horn of the Bow be put upon the Temples; </s>
            <s xml:id="echoid-s1952" xml:space="preserve">but that is but
              <lb/>
            the ſlide of the Sound from thence to the ear.</s>
            <s xml:id="echoid-s1953" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s1954" xml:space="preserve">If you take a Rod of Iron or Braſs, and hold the one end to your ear
              <lb/>
              <note position="right" xlink:label="note-0073-03" xlink:href="note-0073-03a" xml:space="preserve">150.</note>
            and ſtrike upon the other, it maketh a far greater Sound, than the like ſtroke
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            upon the Rod, not made ſo contiguous to the Ear. </s>
            <s xml:id="echoid-s1955" xml:space="preserve">By which, and by ſome
              <lb/>
            other inſtances that have been partly touched, it ſhould appear; </s>
            <s xml:id="echoid-s1956" xml:space="preserve">that Sounds
              <lb/>
            do not onely ſlide upon the ſurface of a ſmooth Body, but do alſo commu-
              <lb/>
            nicate with the Spirits that are in the Pores of the Body.</s>
            <s xml:id="echoid-s1957" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s1958" xml:space="preserve">I remember in Trinity-Colledge in Cambridge, there was an upper Cham-
              <lb/>
              <note position="right" xlink:label="note-0073-04" xlink:href="note-0073-04a" xml:space="preserve">151.</note>
            ber, which being thought weak in the Roof of it, was ſupported by a Pillar
              <lb/>
            of Iron, of the bigneſs of ones arm, in the midſt of the Chamber, which,
              <lb/>
            if you had ſtruck, it would make a little flat noiſe in the Room where it was
              <lb/>
            ſtruck; </s>
            <s xml:id="echoid-s1959" xml:space="preserve">but it would make a great bomb in the Chamber beneath.</s>
            <s xml:id="echoid-s1960" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s1961" xml:space="preserve">The ſound which is made by Buckets in a Well, when they touch upon
              <lb/>
              <note position="right" xlink:label="note-0073-05" xlink:href="note-0073-05a" xml:space="preserve">152.</note>
            the Water, or when they ſtrike upon the ſide of the Well, or when two
              <lb/>
            Buckets daſh the one againſt the other. </s>
            <s xml:id="echoid-s1962" xml:space="preserve">Theſe Sounds are deeper and fuller,
              <lb/>
            than if the like Percuſſion were made in the open Air: </s>
            <s xml:id="echoid-s1963" xml:space="preserve">The cauſe is the
              <lb/>
            penning and encloſure of the Air in the Concave of the Well,</s>
          </p>
          <p>
            <s xml:id="echoid-s1964" xml:space="preserve">Barrels placed in a Room under the Floor of a Chamber, make all
              <lb/>
              <note position="right" xlink:label="note-0073-06" xlink:href="note-0073-06a" xml:space="preserve">153.</note>
            noiſes in the ſame Chamber more full and reſounding.</s>
            <s xml:id="echoid-s1965" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s1966" xml:space="preserve">So that there be five ways (in general) of Majoration of Sounds, Encloſure
              <lb/>
            Simple, Encloſure in the Dilatation, Communication, Reflexion, Concurrent, and Ap-
              <lb/>
            proach to the Senſory.</s>
            <s xml:id="echoid-s1967" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s1968" xml:space="preserve">For Exility of the Voice, or other Sounds: </s>
            <s xml:id="echoid-s1969" xml:space="preserve">It is certain, that the Voice
              <lb/>
              <note position="right" xlink:label="note-0073-07" xlink:href="note-0073-07a" xml:space="preserve">154.</note>
            doth paſs thorow ſolid and hard Bodies, if they be not too thick; </s>
            <s xml:id="echoid-s1970" xml:space="preserve">and thorow
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            Water, which is likewiſe a very cloſe Body, and ſuch an one as letteth not
              <lb/>
            in Air. </s>
            <s xml:id="echoid-s1971" xml:space="preserve">But then the Voice or other Sound is reduced, by ſuch paſſage to a
              <lb/>
            great weakneſs or exility. </s>
            <s xml:id="echoid-s1972" xml:space="preserve">If therefore you ſtop the Holes of a Haw
              <unsure/>
            ks Bell,
              <lb/>
            it will make no ring, but aflat noiſe or rattle. </s>
            <s xml:id="echoid-s1973" xml:space="preserve">And ſo doth the Ætities or
              <lb/>
            Eagles Stone, which hath a little ſtone within it.</s>
            <s xml:id="echoid-s1974" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s1975" xml:space="preserve">And as for Water, it is a certain Tryal: </s>
            <s xml:id="echoid-s1976" xml:space="preserve">Let a man go into a Bath, and
              <lb/>
              <note position="right" xlink:label="note-0073-08" xlink:href="note-0073-08a" xml:space="preserve">155.</note>
            take a Pail and turn the bottom upward, and carry the mouth of it
              <lb/>
            (even) down to the level of the Water, and ſo preſs it down under the
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            Water ſome handful and an half, ſtill keeping it even, that it may not tilt
              <lb/>
            on either ſide, and ſo the Air get out: </s>
            <s xml:id="echoid-s1977" xml:space="preserve">T
              <unsure/>
            hen let him that is in the Bath, </s>
          </p>
        </div>
      </text>
    </echo>
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