Casati, Paolo, De igne dissertationes physicae, 1686

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            <s xml:id="echoid-s15148" xml:space="preserve">
              <pb o="40" file="0468" n="468" rhead="Diſſertatio Prima. De Montibus Flammiferis."/>
            quàm Tremori videretur motus ille ſubſilientis tèrræ, cum ab
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            accensâ aſpiratione non obliquè impellatur.</s>
            <s xml:id="echoid-s15149" xml:space="preserve"/>
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          <p>
            <s xml:id="echoid-s15150" xml:space="preserve">Grad. </s>
            <s xml:id="echoid-s15151" xml:space="preserve">Id aliquando contingere poſſe non negaverim, nimi-
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            rum terram, ſub quâ fit prima exhalationis accenſio ſur ſum re-
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            ctâ impelli, ſi rareſcens ſpirit us æqualem circumquaque obſi-
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            ſtentiam inveniat: </s>
            <s xml:id="echoid-s15152" xml:space="preserve">hoc autem perrarò accidit; </s>
            <s xml:id="echoid-s15153" xml:space="preserve">quia ſubjectum
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            exhalationi ſolum aut non eſt Horizonti parallelum, aut partim
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            molle locum dat, & </s>
            <s xml:id="echoid-s15154" xml:space="preserve">cedit, partim durum reſiſtit; </s>
            <s xml:id="echoid-s15155" xml:space="preserve">incumbens
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            autem terræ moles aut non eſt æquè compacta ſicut argilla & </s>
            <s xml:id="echoid-s15156" xml:space="preserve">la-
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            pis, aut non æquè gravis; </s>
            <s xml:id="echoid-s15157" xml:space="preserve">latera verò non æquè facilè pervios
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            meatus habent. </s>
            <s xml:id="echoid-s15158" xml:space="preserve">Quibus ex cauſis oritur inæqualis terræ eleva-
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            tio, adeóq; </s>
            <s xml:id="echoid-s15159" xml:space="preserve">turrium ac ædium inclinatio, & </s>
            <s xml:id="echoid-s15160" xml:space="preserve">viciſſim compreſſo
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            ſpiritu illarum reſtitutio, ac proinde ſimiliter nutant atque ea,
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            quæ obliquo ſpiritûs fluxu impelluntur. </s>
            <s xml:id="echoid-s15161" xml:space="preserve">Ex militaribus cunicu-
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            lis hujus rei documentum capere poſſumus, qui ita conſtruun-
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            tur ab aggreſſoribus, ut ab igne, non omninò rectâ ſurſum,
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            ſed obliquè in alterum latus, conante diruti muriruinæ devol-
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            vantur in foſſam, non in pomærium, quò paretur facilior aſ-
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            cenſus in oppugnatum propugnaculum, aut caſtellum. </s>
            <s xml:id="echoid-s15162" xml:space="preserve">Fieri
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            igitur poteſt, ut ſimili ratione exhalatio accenſa terram elevet
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            cum eâ inclinatione, quæ in latus propelleret lapides, ſi illos
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            eructaret. </s>
            <s xml:id="echoid-s15163" xml:space="preserve">Hæc certè calidarum a ſpirationum accenſio innotuit
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            aliquando, cum validam telluris concuſſionem ſubſecutus
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            eſt tantus æſtus ac fervor aëris, ut homines ægrè
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            ſpiritum ducerent.</s>
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            <image file="0468-01" xlink:href="http://echo.mpiwg-berlin.mpg.de/zogilib?fn=/permanent/library/xxxxxxxx/figures/0468-01"/>
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