Fabri, Honoré, Dialogi physici in quibus de motu terrae disputatur, 1665
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              hoc eſt aggregatum quoddam ex multiplici halitu, aqueo præſertim, vel
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              ex ratione texturæ ramorum & filaminum in communis ætheris, ſeu, vt vo­
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              cant ſubtilis materiæ medio natantium. </s>
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              Antim.
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              <s id="s.002188"> Fateor, multam vim halitus aëri admixtam eſſe; ſed aqueus
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              frigore conceſſit, terreſtris verò partim deſcendit, partim cum Atomis flui­
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              tat in aëre, aëra autem voco illud, quod non eſt vapor; hic enim totus li­
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              queſcit; vbi frigore denſatur ; nec filaminum agglomeratorum cumulus, ſed
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              illud medium, in quo dicta filamina, ſeu filaminum ramenta, vel exuviæ
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              fluitant & natant: fateor etiam, aëra multo humore foetum graviorem eſ­
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              ſe, quod certè inficietur nemo: quòd autem craſſiores nubes altiùs non at­
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              tollantur, non probat, ſuperfuſum aëra non gravitare, ſed tantùm minùs gra­
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              vitate; quod fateor vltro; æther ille ab aëre fortè non diſtinguitur; aut ſi
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              diſtinguitur, incredibilis non eſt illius gravitatis proportio ad gravitatem
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              hujus; Vt vt ſit, juxta illa mea principia, quæ jam in ſuperioribus congreſ­
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              ſibus præmiſi, hoc argumentum omnino inefficax non eſt; ſecernatur ta­
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              men, vt vultis; ne cuiquam moveam litem; alia proſequor. </s>
              <s id="s.002189">Quartò, So­
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              nus editur intra illud ſegmentum CD, appenditur enim filo tintinnabu­
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              lum intra ampullam vitream, quæ ad extremitatem D facilè componitur;
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              nec eſt, quòd aliquis dicat, ſonum, ſeu tremulum motum traduci per filum
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              in fiſtulam; quia hoc falſum eſſe conſtat, ex luculento experimento; ſi enim
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              tintinnabulum appendas filo ad ferreum axem, obſtructis auribus; licèt den­
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              tibus prædictum axem tangas, nullum ſonum percipies, quamvis tintinna­
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              bulum re ipſa ſonet; igitur filum aptum medium non eſt, ad prædictum
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              motum traducendum: deinde ita diſponi poteſt tintinnabulum, inſerto fi­
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              ſtulæ filo ferreo, ex quo pendeat, vt fiſtulam nullo modo tangat, nec me­
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              diatè, nec immediatè, vt aliquando probavi; ſenſi tamen vt antè, ſonum; ſo­
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              nus autem propagari non poteſt, niſi per medium. </s>
              <s id="s.002190">Quintò, Ignis intia
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              idem ſegmentum accenditur; hic porrò accendi non poteſt, niſi vel parti­
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              culæ ignis eò penetrent, vt Democriti ci dicunt; vel calor, qui, vt Peripate­
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              tici docent, qualitas eſt, eò vſque ad pabulum diffundatur, per medium ſci­
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              licet; immò ignis accenditur tantùm per collectionem partium calidi, quæ
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              certè colligi non poſſunt, niſi humoris interceptæ partes extrahantur, vt
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              fit per reſolutionem; rareſcens enim humor avolat; vnde ignis ſeu calidi
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              particulas congregari, ſeu colligi, neceſſe eſt; nunquam autem partes hu­
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              moris avolarent, ſi vacuum eſſet, vt pater. </s>
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              Auguſtin.
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              <s id="s.002192"> Certis experimentis conſtat fumum in dicto ſegmento non
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              aſſurgere ſurſum, ſed deorſum cadere; flammam item ſtatim extingui; vn­
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              de fortè vacuum eſſe, quiſpiam putaret. </s>
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              <s id="s.002193">
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              Antim.
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              <s id="s.002194"> Scio de quibus experimentis ſermonem facias; libellum legi,
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              & mihi nobiliſſimi Autoris Roberti Boyle diligentia, nec non accurata
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              induſtria ſummopere placuit: Ille igitur ignem accendit in ſuo recipiente
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              vitreo (ſic enim vas illud vocat, ex quo anthliæ opera, maxima contenti
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              aëtis pars exugitur & educitur) nempe in eo, & ignem ex ſilice excuſſit, &
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              pulverem tormentarium accendit, non tamen opera lentis vſtoriæ, licèt hoc
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              aliis pro vobis ſucceſſerit; ille autem obſervat fumum intra recipiens ex </s>
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