Musschenbroek, Petrus van, Physicae experimentales, et geometricae de magnete, tuborum capillarium vitreorumque speculorum attractione, magnitudine terrae, cohaerentia corporum firmorum dissertationes: ut et ephemerides meteorologicae ultraiectinae

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            Aquæ immittitur incipienti in glaciem abire; </s>
            <s xml:id="echoid-s17222" xml:space="preserve">totum igitur ſpatium
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            intermedium diviſum eſt in 64 æquales partes: </s>
            <s xml:id="echoid-s17223" xml:space="preserve">Nix permixta cum
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            Sale Ammoniaco, tempore hyberno atque ſummo regnante gelu
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            circa bulbum copioſe circumpoſita liquorem condenſat, ût deſcen-
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            dat ad notam 10, ita ut inter principium glaciei & </s>
            <s xml:id="echoid-s17224" xml:space="preserve">ſummum frigus
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            artificiale intercedant notæ æquales prioribus 22. </s>
            <s xml:id="echoid-s17225" xml:space="preserve">â 10 ad 0 conti-
              <lb/>
            nuatur Scala deorſum, ut frigus, forte artificiali adhuc majus,
              <lb/>
            obſervari etiam poſſet; </s>
            <s xml:id="echoid-s17226" xml:space="preserve">ita quoque ſupra notam 96 ſcala aliquouſ-
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            que ſurſum producitur, ut major calor indicaretur.</s>
            <s xml:id="echoid-s17227" xml:space="preserve"/>
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            <s xml:id="echoid-s17228" xml:space="preserve">Convenit hæc ſcala cum eâ Ingenioſiſſimi D°. </s>
            <s xml:id="echoid-s17229" xml:space="preserve">Fahrenheytii, cujus
              <lb/>
            Mercurio impleta Thermoſcopia ita reſpondent, ut ad gradum 32
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            ponatur indicium Aquæ mox in glaciem abituræ: </s>
            <s xml:id="echoid-s17230" xml:space="preserve">ad 96 calor ſangui-
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            nis humani; </s>
            <s xml:id="echoid-s17231" xml:space="preserve">intermediique gradus ab utroque Thermoſcopio eidem
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            calori expoſito indicantur: </s>
            <s xml:id="echoid-s17232" xml:space="preserve">Verum differt ſcala infra 32 gradum;
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            </s>
            <s xml:id="echoid-s17233" xml:space="preserve">nam Thermoſcopia Mercurio impleta, deſcendunt ad gradum 0, im-
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            miſſa nivi cum ſale Ammoniaco permixtæ, cum noſtrum tantum ad
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            gradum 10 deſcendat.</s>
            <s xml:id="echoid-s17234" xml:space="preserve"/>
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            <s xml:id="echoid-s17235" xml:space="preserve">Ex his certiſſimis terminis quilibet noſtras obſervationes cum iis,
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            quæ ope aliorum Thermoſcopiorum peractæ ſunt, comparare fa-
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            cile poterit: </s>
            <s xml:id="echoid-s17236" xml:space="preserve">fatendum tamen eſt Thermoſcopicas obſervationes
              <lb/>
            raro capi ſolere ſatis cauté, eaſque plurimum differre prout huic
              <lb/>
            alterive plagæ expoſita fuerint inſtrumenta; </s>
            <s xml:id="echoid-s17237" xml:space="preserve">ideo cum duobus in
              <lb/>
            diverſis locis poſitis noſtras obſervationes condidimus.</s>
            <s xml:id="echoid-s17238" xml:space="preserve"/>
          </p>
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            <s xml:id="echoid-s17239" xml:space="preserve">Barometro uſus fui accurato, cujus mox dabo fabricam, etiamſi
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            enim vulgatiſſima ſit machina, perraro rite conſtructa habetur,
              <lb/>
            relicto utplurimum aëre in ſuperiori tubi parte, atque inter Mer-
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            curii interſtitia; </s>
            <s xml:id="echoid-s17240" xml:space="preserve">ſolent enim argentum vivum tubo infundere, bul-
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            lamque aëream per ipſum tranſmittere, aliquoties tubum inclinan-
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            do, quo magna quidem pars Aëris intercepti hinc inde e Mercu-
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            rio educitur, non tamen omnis: </s>
            <s xml:id="echoid-s17241" xml:space="preserve">methodus ita implendi tubos ru-
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            ſticis imperitiſque ſufficiat: </s>
            <s xml:id="echoid-s17242" xml:space="preserve">ſed ecquis â cachinno ſe temperet, eam
              <lb/>
            a Philoſophis probatam deprehendens? </s>
            <s xml:id="echoid-s17243" xml:space="preserve">aſt ex hoc ungue Leonem.
              <lb/>
            </s>
            <s xml:id="echoid-s17244" xml:space="preserve">Accuratiſſima methodus, operoſa quidem verum Dii nil niſi laboribus
              <lb/>
            vendunt, & </s>
            <s xml:id="echoid-s17245" xml:space="preserve">quidem hæc eſt: </s>
            <s xml:id="echoid-s17246" xml:space="preserve">Mercurius puriſſimus in ampla calefactus
              <lb/>
            probe phiala includatur recipienti Boyleano, ex quo ſollicite edu-
              <lb/>
            catur omnis aër, interim Mercurium agitando leniter; </s>
            <s xml:id="echoid-s17247" xml:space="preserve">qui </s>
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