Casati, Paolo, De igne dissertationes physicae, 1686

Table of figures

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            <s xml:id="echoid-s4121" xml:space="preserve">
              <pb o="135" file="0147" n="147" rhead="De Calore."/>
            ximo calente exugat ſibi aduerſos igniculos, quibus incaleſcere in-
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            cipiat, illo præter naturam tepeſcente. </s>
            <s xml:id="echoid-s4122" xml:space="preserve">Quod ſi tenuiſſimas na-
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            turas in corporibus alias Calidas, Frigidas alias concipiamus in-
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            uicem, vbi proximæ fiant, pugnantes, adeò vt, dum igniculi
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            frigidos Spiritus commouere atque agitare conantur, hi motione
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            huiuſmodi à ſuâ figurâ nonnihil diſtorti, viciſſim illos virtute ſuâ
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            elaſticâ circumplecti, atque conſtringere tentent, ac propterea
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            fugam, quâ data via, molientes igniculi alij ad interiora ſui cor-
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            poris ſe recipiant, alij extruſi in proximi corporis poros ſe inſi-
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            nuent, & </s>
            <s xml:id="echoid-s4123" xml:space="preserve">inde alios ſpiritus frigidos extrudant, quibus locum in
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            altero corpore reliquerunt auolantes: </s>
            <s xml:id="echoid-s4124" xml:space="preserve">Haud ægrè intelligimus, & </s>
            <s xml:id="echoid-s4125" xml:space="preserve">
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            quomodo accidat non exiguo Naturæ compendio hoc caloris at-
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            que frigoris commercium, commigrantibus ſcilicet ex altero in
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            alterum corpus expirationibus, & </s>
            <s xml:id="echoid-s4126" xml:space="preserve">quo pacto ex contrarij cir-
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            cumſeſſione, ſeu Antiperiſtaſi, augeatur calor, aut frigus, re-
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            cedentibus ad interiora ſpiritibus. </s>
            <s xml:id="echoid-s4127" xml:space="preserve">Ex hac, confligentibus in-
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            ter ſe diſſimilibus corporibus, commutatione ſpirituum, vt ferè
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            tantundem frigoris proximo corpori reddant, quantum caloris
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            ab illo recipiunt (quemadmodum cum manus calida frigidam
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            fouet) oritur pax inter ea corpora, quorum par caloris atque
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            frigoris menſura deprehenditur, &</s>
            <s xml:id="echoid-s4128" xml:space="preserve">, vt Scholæ loquuntur, Simile
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            non agit in ſimile: </s>
            <s xml:id="echoid-s4129" xml:space="preserve">Cum enim, ex Naturæ corpora molientis in-
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            ſtituto, efficientia omnis à calore ortum habeat, quippe qui eſt
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            motûs initium, ſi calor in vtroque corpore æqualis fuerit, par
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            eſt igniculorum menſura, ſimilis eorum impetus & </s>
            <s xml:id="echoid-s4130" xml:space="preserve">agitatio: </s>
            <s xml:id="echoid-s4131" xml:space="preserve">vbi
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            autem duo æqualia æqualiter mouentur, ſe viciſſim vrgere ne-
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            queunt, vt alterum ab altero extrudatur, aut, ſi ſpatia commu-
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            tent, perinde ſe res habet, atque ſi vtrunque ſuâ ſe iactâſſet in
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            aulâ; </s>
            <s xml:id="echoid-s4132" xml:space="preserve">ac proinde ſemper æqualis manet calor in vtroque, atque
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            frigus æquale: </s>
            <s xml:id="echoid-s4133" xml:space="preserve">hoc tamen intelligendum eſt, ſi paria ſint cetera
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            omnia; </s>
            <s xml:id="echoid-s4134" xml:space="preserve">nam ſi particulæ aliquæ non agitabantur, nil prohibet,
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            quin immiſſis igniculis nouis agitari incipiant, aut nouis ſpiritibus
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            frigidis magis conſtringantur, ſi facilior ſit ab altero in alterum
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            tranſitus.</s>
            <s xml:id="echoid-s4135" xml:space="preserve"/>
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            <s xml:id="echoid-s4136" xml:space="preserve">Grad. </s>
            <s xml:id="echoid-s4137" xml:space="preserve">Hanc igniculorum immiſſionem facilè admittent, eam-
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            que prohiberi obſtructis poris, illi exiſtimabunt, qui plumbum
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            liquefactum manibus ſucco Mercurialis & </s>
            <s xml:id="echoid-s4138" xml:space="preserve">Portulacæ madefactis
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            pertractare ſe poſſe profitentur. </s>
            <s xml:id="echoid-s4139" xml:space="preserve">Alij ſucco Maluæ & </s>
            <s xml:id="echoid-s4140" xml:space="preserve">ouorum </s>
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