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

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          <p>
            <s xml:id="echoid-s1356" xml:space="preserve">
              <pb o="23" file="0057" n="57" rhead="Century I."/>
            bottom of a Moat, where the Earth had
              <unsure/>
            ſomewhat overgrown it: </s>
            <s xml:id="echoid-s1357" xml:space="preserve">And
              <lb/>
            this Egg was come to the hardneſs of a ſtone, and had the colours of the
              <lb/>
            White and Yolk perfect; </s>
            <s xml:id="echoid-s1358" xml:space="preserve">and the Shell ſhining in ſmall Grains, like Sugar
              <lb/>
            or Alablaſter.</s>
            <s xml:id="echoid-s1359" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s1360" xml:space="preserve">Another Experience there is of Induration by Cold, which is already found,
              <lb/>
              <note position="right" xlink:label="note-0057-01" xlink:href="note-0057-01a" xml:space="preserve">86.</note>
            which is, That Metals themſelves are hardned by often heating, and quench-
              <lb/>
            ing in Cold-
              <unsure/>
            water: </s>
            <s xml:id="echoid-s1361" xml:space="preserve">For Cold ever worketh moſt potently upon Heat pre-
              <lb/>
            cedent.</s>
            <s xml:id="echoid-s1362" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s1363" xml:space="preserve">For Induration by Heat, it muſt be conſidered, That Heat, by the exha
              <lb/>
              <note position="right" xlink:label="note-0057-02" xlink:href="note-0057-02a" xml:space="preserve">87.</note>
            ling of the moiſter parts, doth either harden the Body; </s>
            <s xml:id="echoid-s1364" xml:space="preserve">as in Bricks, Tiles,
              <lb/>
            &</s>
            <s xml:id="echoid-s1365" xml:space="preserve">c. </s>
            <s xml:id="echoid-s1366" xml:space="preserve">Or if the Heat be more fierce, maketh the groſſer part of it ſelſ, run and
              <lb/>
            melt; </s>
            <s xml:id="echoid-s1367" xml:space="preserve">as in the making of ordinary Glaſs, and in the Vitrification of Earth,
              <lb/>
            (as we ſee in the inner parts of Furnaces) and in the Vitrification of Brick,
              <lb/>
            and of Metals. </s>
            <s xml:id="echoid-s1368" xml:space="preserve">And in the former of theſe, which is the hardning by
              <lb/>
            Baking, without Melting, the Heat hath theſe degrees: </s>
            <s xml:id="echoid-s1369" xml:space="preserve">Firſt, It Indu-
              <lb/>
            rateth, and then maketh Fragile; </s>
            <s xml:id="echoid-s1370" xml:space="preserve">and laſtly, It doth Incinerate and Calci-
              <lb/>
            nate.</s>
            <s xml:id="echoid-s1371" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s1372" xml:space="preserve">But if you deſire to make an Induration with Toughneß, and leſs Fragility,
              <lb/>
              <note position="right" xlink:label="note-0057-03" xlink:href="note-0057-03a" xml:space="preserve">88.</note>
            a middle way would be taken, which is that which Ariſtotle hath well
              <lb/>
            noted, but would be throughly verified. </s>
            <s xml:id="echoid-s1373" xml:space="preserve">It is, to decoct Bodies in Water
              <lb/>
            for two or three days; </s>
            <s xml:id="echoid-s1374" xml:space="preserve">but they muſt be ſuch Bodies, into which the
              <lb/>
            Water will not enter; </s>
            <s xml:id="echoid-s1375" xml:space="preserve">as Stone and Metal. </s>
            <s xml:id="echoid-s1376" xml:space="preserve">For if they be Bodies, into
              <lb/>
            which the Water will enter, then long ſeething will rather ſoften than in-
              <lb/>
            durate them, as hath been tried in Eggs, &</s>
            <s xml:id="echoid-s1377" xml:space="preserve">c. </s>
            <s xml:id="echoid-s1378" xml:space="preserve">Therefore, ſofter Bodies
              <lb/>
            muſt be put into Bottles, and the Bottles hung into Water ſeething, with
              <lb/>
            the Mouths open above the Water, that no Water may get in: </s>
            <s xml:id="echoid-s1379" xml:space="preserve">For by this
              <lb/>
            Means, the Virtual Heat of the Water will enter; </s>
            <s xml:id="echoid-s1380" xml:space="preserve">and ſuch a Heat, as will
              <lb/>
            not make the Body aduſt or fragile: </s>
            <s xml:id="echoid-s1381" xml:space="preserve">But the Subſtance of the Water will
              <lb/>
            be ſhut out. </s>
            <s xml:id="echoid-s1382" xml:space="preserve">This Experiment we made, and it ſorted thus, It was tryed
              <lb/>
            with a piece of Free-ſtone, and with Pewter, put into the Water at large; </s>
            <s xml:id="echoid-s1383" xml:space="preserve">the
              <lb/>
            Free-ſtone we found received in ſome Water; </s>
            <s xml:id="echoid-s1384" xml:space="preserve">for it was ſofter and eaſier to
              <lb/>
            ſcrape, than a piece of the ſame ſtone kept dry. </s>
            <s xml:id="echoid-s1385" xml:space="preserve">But the Pewter, into which
              <lb/>
            no Water could enter, became more white, and liker to Silver, and le
              <unsure/>
            ſs flexi-
              <lb/>
            ble by much. </s>
            <s xml:id="echoid-s1386" xml:space="preserve">There were alſo put into an Earthen Bottle, placed as before, a
              <lb/>
            good pellet of Clay, a piece of Cheeſe, a piece of Chalk, and a piece of Free-
              <lb/>
            ſtone. </s>
            <s xml:id="echoid-s1387" xml:space="preserve">The Clay came forth almoſt of the hardneſs of Stone: </s>
            <s xml:id="echoid-s1388" xml:space="preserve">The Cheeſe
              <lb/>
            likewiſe very hard, and not well to be cut: </s>
            <s xml:id="echoid-s1389" xml:space="preserve">The Chalk and the Free ſtone
              <lb/>
            much harder then they were. </s>
            <s xml:id="echoid-s1390" xml:space="preserve">The colour of the Clay inclined not a whit to
              <lb/>
            the colour of Brick, but rather to white, asin ordinary drying by the Sun.
              <lb/>
            </s>
            <s xml:id="echoid-s1391" xml:space="preserve">Note, that all the former tryals were made by a boyling upon a good hot fire,
              <lb/>
            rene wing the Water as it conſumed, with other hot Water; </s>
            <s xml:id="echoid-s1392" xml:space="preserve">but the boyling
              <lb/>
            was but for Twelve hours onely: </s>
            <s xml:id="echoid-s1393" xml:space="preserve">And it is like, that the Experiment would
              <lb/>
            have been more effectual, if the boyling had been fortwo or three days, as
              <lb/>
            we preſcribed before.</s>
            <s xml:id="echoid-s1394" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s1395" xml:space="preserve">As touching Aßimilation (for there is a degree of Aßimilation, even in Inani-
              <lb/>
              <note position="right" xlink:label="note-0057-04" xlink:href="note-0057-04a" xml:space="preserve">89.</note>
            mate Bodies) we ſee examples of it in ſome Stones, in Clay-grounds, lying
              <lb/>
            near to the top of the Earth where Pebble is; </s>
            <s xml:id="echoid-s1396" xml:space="preserve">in which you may manifeſtly
              <lb/>
            ſee divers Pebbles gathered together, and a cruſt of Cement or Stone be
              <lb/>
            tween them, as hard as the Pebbles themſelves. </s>
            <s xml:id="echoid-s1397" xml:space="preserve">And it were good to make a
              <lb/>
            tryal of purpoſe, by taking Clay, and putting in it divers Pebble-ſtones, thick
              <lb/>
            ſet, to ſee whether in continuance of time, it will not be harder than other
              <lb/>
            Clay of the ſame lump, in which no Pebbles are ſet. </s>
            <s xml:id="echoid-s1398" xml:space="preserve">We ſee alſo in </s>
          </p>
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