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

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              <s>
                <pb xlink:href="040/01/390.jpg" pagenum="370"/>
              cauſes of the true concluſions obſerved by himſelf. </s>
              <s>Which
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              ſons (freely ſpeaking) do not knit and bind ſo faſt, as thoſe
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              doubtedly ought to do, in that of natural, neceſſary, and laſting
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              concluſions may be alledged. </s>
              <s>And I doubt not, but that in
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              ceſſe of time this new Science will be perfected with new
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              vations, and, which is more, with true and neceſſary
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                <arrow.to.target n="marg706"/>
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              tions. </s>
              <s>Nor ought the glory of the firſt Inventor to be thereby
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              diminiſhed, nor do I leſſe eſteem, but rather more admire, the
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              Inventor of the Harp (although it may be ſuppoſed that the
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              ſtrument at firſt was but rudely framed, and more rudely
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              ed) than an hundred other Artiſts, that in the inſuing Ages
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              ced that profeſſion to great perfection. </s>
              <s>And methinks, that
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              tiquity had very good reaſon to enumerate the firſt Inventors of
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              the Noble Arts amongſt the Gods; ſeeing that the common wits
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              have ſo little curioſity, and are ſo little regardful of rare and
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              gant things, that though they ſee and hear them exercirated by
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              the exquifite profeſſors of them, yet are they not thereby
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              ſwaded to a deſire of learning them. </s>
              <s>Now judge, whether
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              cities of this kind would ever have attempted to have found out
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              the making of the Harp, or the invention of Muſick, upon the
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              hint of the whiſtling noiſe of the dry ſinews of a Tortois, or
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              from the ſtriking of four Hammers. </s>
              <s>The application to great
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              inventions moved by ſmall hints, and the thinking that under a
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              primary and childiſh appearance admirable Arts may lie hid, is
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              not the part of a trivial, but of a ſuper-humane ſpirit. </s>
              <s>Now
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              ſwering to your demands, I ſay, that I alſo have long thought
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              upon what might poſſibly be the cauſe of this ſo tenacious and
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              potent union, that we ſee to be made between the one Iron that
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              armeth the Magnet, and the other that conjoyns it ſelf unto it.
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                <arrow.to.target n="marg707"/>
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              And firſt, we are certain, that the vertue and ſtrength of the ſtone
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              doth not augment by being armed, for it neither attracts at
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              greater diſtance, nor doth it hold an Iron the faſter, if between it,
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              and the arming or cap, a very fine paper, or a leaf of beaten gold,
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              be interpoſed; nay, with that interpoſition, the naked ſtone
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              takes up more Iron than the armed. </s>
              <s>There is therefore no
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              ration in the vertue, and yet there is an innovation in the effect.
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              And becauſe its neceſſary, that a new effect have a new cauſe, if
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              it be inquired what novelty is introduced in the act of taking up
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              with the cap or arming, there is no mutation to be diſcovered, but
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              in the different contact; for whereas before Iron toucht
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              ſtone, now Iron toucheth Iron. </s>
              <s>Therefore it is neceſſary to
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              clude, that the diverſity of contacts is the cauſe of the diverſity
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                <arrow.to.target n="marg709"/>
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              of effects. </s>
              <s>And for the difference of contacts it cannot, as I ſee,
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              be derived from any thing elſe, ſave from that the ſubſtance of
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              the Iron is of parts more ſubtil, more pure, and more </s>
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