Borelli, Giovanni Alfonso, De motionibus naturalibus a gravitate pendentibus, 1670

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              <s id="s.002498">
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              phones, non quidem ad
                <expan abbr="horizõtem">horizontem</expan>
              perpendiculares,
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              ſed inclinatos, prout ſuperficies conorum
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              ,
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              habentque ſiphones oriſicia ferè æqualia IL OM, &
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              eorum altitudines inæquales, ergo duæ moles aquæ
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              æquales deſluunt temporibus reciprocè proportio­
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              nalibus ſubduplicatæ rationi altitudinum; quare
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                pus</expan>
              V, quo ſolidum DEF aſcendit
                <expan abbr="ſpatiũ">ſpatium</expan>
              DN, ad
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                pus</expan>
              T, quo ſolidum ABC percurrit ſpatium AH æ­
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              quale ipſi DN, eamdem proportionem habebit,
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              altitudo GB ad altitudinem DE. </s>
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              Cap. 11. gra­
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              uia in fluido
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              velocitati­
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              bus inæqua­
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              libus ferri
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              debere.</s>
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              Prop. 223.</s>
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            <p type="main">
              <s id="s.002501">Ijſdem poſitis ſi aſcenſus fiant æqualibus tempo­
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              ribus (ſemper tamen infra aquæ libellam), ſpatia ab
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              eis exacta habebunt ſubduplicatam proportionem̨
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              altitudinum. </s>
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              <s id="s.002502">Hoc profectò facilè oſtendetur eadem methodo
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              ſuperiùs expoſita. </s>
              <s id="s.002503">Idemque concludetur in conorum
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              deſcenſu. </s>
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              PROP. CCXXX.
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            <p type="main">
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              Iiſdem datis ſi tantummodò conorum baſes præcedant, &
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              ſursùm reſpiciant, & æquidiſtantes horizonti, & ſupre­
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              mæ aquæ libellæ; idem prorsùs concludetur.
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                <emph.end type="center"/>
              </s>
            </p>
            <p type="main">
              <s id="s.002506">NAm ſemper aqua è ſuperno loco expelli debet
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              ad occupanda infima ſpatia à conis derelicta,
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              neque hoc fieri poteſt abſque eo quòd aqua circum­
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              circa per ſiphones rotundos, cauos, inclinatoſquę
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              defluat, & quia celeritates fluxus aquæ in prædictis
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              ſi phonibus determinant velocitates aſcenſuum; hinc
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              ſequitur vt motus ſursùm conorum legibus
                <expan abbr="ſiphonũ">ſiphonum</expan>
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              ſubijciantur, ſcilicèt aſcenſus conorum eodem tem-</s>
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