Salusbury, Thomas, Mathematical collections and translations (Tome I), 1667

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            <p type="main">
              <s>
                <pb xlink:href="040/01/388.jpg" pagenum="368"/>
              ſtronger of which Poles is that which looketh towards the South.
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              </s>
              <s>Obſerve, in the next place, that in a little Magnet this South and
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              more vigorous Pole, becometh weaker, when ever it is to take
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              up an iron in preſence of the North Pole, of another much
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              ger Magnet: and not to make any tedious diſcourſe of it,
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              tain your ſelf, by experience, of theſe and many other properties
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              deſcribed by
                <emph type="italics"/>
              Gilbert,
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              which are all ſo peculiar to the Magnet, as
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                <arrow.to.target n="marg703"/>
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              that none of them agree with any other matter. </s>
              <s>Tell me now,
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                <emph type="italics"/>
              Simplicius,
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              if there were laid before you a thouſand pieces of
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              ſeveral matters, but all covered and concealed in a cloth, under
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              which it is hid, and you were required, without uncovering them,
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              to make a gueſſe, by external ſignes, at the matter of each of
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              them, and that in making trial, you ſhould hit upon one that
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              ſhould openly ſhew it ſelf to have all the properties by you
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              dy acknowledged to reſide onely in the Magnet, and in no other
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              matter, what judgment would you make of the eſſence of ſuch a
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              body? </s>
              <s>Would you ſay, that it might be a piece of Ebony, or
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              Alablaſter, or Tin.</s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg700"/>
                <emph type="italics"/>
              Our Globe would
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              have been called
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              ſtone, in ſtead of
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              Earth, if that
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              name had been
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              uen it in the
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              ginning.
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              </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg701"/>
                <emph type="italics"/>
              The method of
                <emph.end type="italics"/>
                <lb/>
              Gilbert
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              in his
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              loſophy.
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              </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg702"/>
                <emph type="italics"/>
              Many
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              ties in the
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              net.
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              </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg703"/>
                <emph type="italics"/>
              An Argument
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              proving the
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              ſtrial Globe to be
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              a
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              Magnet.</s>
            </p>
            <p type="main">
              <s>SIMP. </s>
              <s>I would ſay, without the leaſt hæſitation, that it was a
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              piece of Load-ſtone.</s>
            </p>
            <p type="main">
              <s>SALV. </s>
              <s>If it be ſo, ſay reſolutely, that under this cover and
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              ſcurf of Earth, ſtones, metals, water, &c. </s>
              <s>there is hid a great
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              Magnet, foraſmuch as about the ſame there may be ſeen by any
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              one that will heedfully obſerve the ſame, all thoſe very accidents
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              that agree with a true and viſible Globe of Magnet; but if no
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              more were to be ſeen than that of the Declinatory Needle, which
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              being carried about the Earth, more and more inclineth, as it
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              proacheth to the North Pole, and declineth leſſe towards the
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              quinoctial, under which it finally is brought to an
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              Æquilibrium,
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                <lb/>
              it might ſerve to perſwade even the moſt ſcrupulous judgment. </s>
              <s>I
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              forbear to mention that other admirable effect, which is ſenſibly
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              obſerved in every piece of Magnet, of which, to us inhabitants
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              of the Northern Hemiſphere, the Meridional Pole of the ſaid
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              net is more vigorous than the other; and the difference is found
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              greater, by how much one recedeth from the Equinoctial; and
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              under the Equinoctial both the parts are of equal ſtrength, but
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              notably weaker. </s>
              <s>But, in the Meridional Regions, far diſtant
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              from the Equinoctial, it changeth nature, and that part which to
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              us was more weak, acquireth more ſtrength than the other: and
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              all this I confer with that which we ſee to be done by a ſmall
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              piece of Magnet, in the preſence of a great one, the vertue of
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              which ſuperating the leſſer, maketh it to become obedient to it,
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              and according as it is held, either on this or on that ſide the
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              noctial of the great one, maketh the ſelf ſame mutations,
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              which I have ſaid are made by every Magnet, carried on this </s>
            </p>
          </chap>
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      </text>
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