Valerio, Luca, De centro gravitatis solidorvm libri tres
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              lum per quoduis punctum S dimidij axis ED, faciens­
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              que ſectiones circulos, vel ellipſes ſimiles ſcilicet ba­
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              ſibus oppoſitis ſolidi FH, & ſectionum diametros LM,
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              TV, abſcindat ſolidi ABCD maiorem portionem
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              LBM, & ſolidi FH cylindrum, vel portionem cy­
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              lindricam TH, cuius axis BES: duorum autem ſegmen­
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              corum BE, ES ſumptis duabus quartis partibus extre­
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              mis BQ PS, fiat vt cubus ex BE ad cubum ex ES, ita
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              PR ad RQ. Dico reliquæ figuræ ex cylindro, vel por­
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              tione cylindrica TH, portioni LBM circumſcripta, dem­
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              pta portione LBM, centrum grauitatis eſſe R. </s>
              <s>Se­
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              ctis enim parallelogrammo TH, & ſolidis LBM, TH,
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              plano per centrum E, baſibus ſolidi TH parallelo, ſit ſe­
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              ctio, (vna enim communis erit vtrique ſolido) circulus,
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              vel ellipſis, cuius diameter AEC in parallelogrammo T
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              H diametris TV, GH
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              oppoſitarum baſium pa­
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              rallela. </s>
              <s>Tum ſuper ba­
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              ſes oppoſitas circulos, vel
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              ellipſes circa GH, FK
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              ſtent coni, vel portiones
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              conicæ GEH, FEK:
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              & planum per TV baſi
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              circa FK parallelum ab­
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              ſcindat à ſolido FEK
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              conum, vel coni portio­
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              nem NEO ſimilem vti­
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              que ipſi FEK, hoc eſt
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              ipſi GEH, propter ſimiles baſes, & ſimilia triangula per
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              axim in eodem parallelogrammo FH. </s>
              <s>Solidi itaque
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              NEO, ex ijs, quæ in primo libro demonſtrauimus, cen­
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              trum grauitatis erit P; quemadmodum & Q ſolidi
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              NEO. </s>
              <s>Quoniam igitur tàm ſolidi GEH ad ſoli­
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              dum NEO propter ſimilitudinem, quàm cubi ex BE </s>
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