Valerio, Luca, De centro gravitatis solidorvm libri tres
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              <s>
                <pb xlink:href="043/01/239.jpg" pagenum="60"/>
              ter quartas partes extremas eiuſdem axis ſeg­
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              mentorum, quæ à centro ſphæræ, vel ſphæroi­
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              dis fiunt interiectum ſic diuiditur, vt pars ma­
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              iori baſi propinquior ſit ad reliquam, vt prædi­
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              ctorum axis ſegmentorum cubus maioris ad cu­
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              bum minoris. </s>
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              <s>Ijſdem poſitis, & conſtructis, quæ in antecedenti, rur­
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              ſus per quodlibet axis BE punctum X, ductum planum
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              baſibus ſolidi FH parallelum, ſecansque vnà cylindrum,
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              vel portionem cylindricam FH, & ſphæram, vel ſphæroi­
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              des ABCD: eſto duobus planis per TV, ZY, inter ſe pa­
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              rallelis, & centrum E intercipientibus abciſſa ſphæræ, vel
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              ſphæroidis portio L
                <foreign lang="grc">δ ε</foreign>
              M vnà cum cylindro, vel portione
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              cylindrica TY: & ſumatur ipſius EX pars quarta XQ,
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              qualis eſt & PS ipſius E
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              S: & vt eſt cubus ex EX
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              ad cubum ex ES, ita fiat
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              PR ad
                <expan abbr="Rq.">Rque</expan>
              Dico reli­
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              qui ex cylindro, vel por­
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              tione cylindrica TY dem
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              pta ſphæræ, vel ſphæroi­
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              dis portione L
                <foreign lang="grc">δ ξ</foreign>
              M, cen­
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              trum grauitatis eſſe R. </s>
              <s>Eſto
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              enim conus, vel coni por­
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              tio
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              E
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              abſciſſa prædi­
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              cto plano per ZY, & com
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              munibus axibus ES, EX,
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              ſimili igitur demonſtratio­
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              ne antecedentis manifeſtum eſt quod proponebatur. </s>
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