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

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              <s>
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              makes the objection, yea, it is totally overthrown by that which
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              immediately after he addeth for a greater confirmation of his
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              ment, as you ſhall hear. </s>
              <s>He re-inforceth his argument, I ſay, with
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              another Axiome, which is this; That
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              natura in rebus neceſſari is
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              nec deficiat, nec abundat: i.e.
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              That nature in things neceſſary is
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              neither defective, nor ſuperfluous. </s>
              <s>This is obvious to the
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                <arrow.to.target n="marg452"/>
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              vers of natural things, and chiefly of animals, in which, becauſe
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              they are to move with many motions, Nature hath made many
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              flexures, and hath thereunto commodiouſly knitted the parts for
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              motion, as to the knees, to the hips, for the inabling of living
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              creatures to go, and run at their pleaſure. </s>
              <s>Moreover in man he
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              hath framed many flexions, and joynts, in the elbow, and hand, to
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              enable them to perform many motions. </s>
              <s>From theſe things the
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                <arrow.to.target n="marg453"/>
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              gument is taken againſt the threefold motion of the Earth. [
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              ther the Body, that is one, and continuate, without any manner of
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              knittings or flexions, can exerciſe divers motions, or cannot: If it
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              can without them, then in vain hath nature framed the flexures in
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              animals; which is contrary to the Axiome: but if it cannot
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              out them, then the Earth, one body, and continuate, and deprived of
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              flexures, and joynts, cannot of its own nature move with
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              ty of motions.
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              ] You ſee now how craftily he falls upon your an­
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              ſwer, as if he had foreſeen it.</s>
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            <p type="margin">
              <s>
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                <emph type="italics"/>
              A fourth
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              iome againſt the
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              motion of the Earth
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              </s>
            </p>
            <p type="margin">
              <s>
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                <emph type="italics"/>
              Flexures
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              ſary in animals for
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              the diverſity of
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              their motions.
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              </s>
            </p>
            <p type="margin">
              <s>
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                <emph type="italics"/>
              Another
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              ment againſt the
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              three fold motion of
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              the Earth.
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              </s>
            </p>
            <p type="main">
              <s>SALV. </s>
              <s>Are you ſerious, or do you jeſt?</s>
            </p>
            <p type="main">
              <s>SIMP. </s>
              <s>I ſpeak it with the beſt judgment I have.</s>
            </p>
            <p type="main">
              <s>SALV. </s>
              <s>You muſt therefore ſee that you have as fortunate an
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              hand in defending the reply of this Philoſopher, againſt ſome
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              ther rejoynders made to him; therefore anſwer for him, I pray
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              you, ſeeing we cannot have him here. </s>
              <s>You firſt admit it for true,
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              that Nature hath made the joynts, flexures, and knuckles of
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              ving creatures, to the intent that they might move with ſnndry
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              and divers motions; and I deny this propoſition; and ſay, that
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              theſe flexions are made, that the animal may move one, or more
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              of its parts, the reſt remaining immoved: and I ſay, that as to the
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              ſpecies and differences of motions thoſe are of one kind alone, to
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              wit, all circular, and for this cauſe you ſee all the ends of the
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              veable bones to be convex or concave, and of theſe ſome are
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              rical, as are thoſe that are to move every way, as in the
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              joynt, the arme of the Enſigne doth, in diſplaying the Colours,
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              and that of the Falconer in bringing his Hawk to the lure; and
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              ſuch is the flexure of the elbow, upon which the hand turns round,
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              in boring with an augure: others are circular onely one way, and
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              as it were cylindrical, which ſerve for the members that bend
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              ly in one faſhion, as the joynts of the fingers one above another,
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              &c. </s>
              <s>But without more particular inductions, one only general
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              courſe may make this truth underſtood; and this is, that of a ſolid </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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