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

Table of contents

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[31.] EXPERIMENTUM XXIII.
Page: 69 (55)
[32.] EXPERIMENTUM XXIV.
Page: 71 (57)
[33.] EXPERIMENTUM XXV.
Page: 74 (60)
[34.] EXPERIMENTUM. XXVI.
Page: 80 (66)
[35.] EXPERIMENTUM XXVII.
Page: 83 (69)
[36.] EXPERIMENTUM. XXVIII.
Page: 83 (69)
[37.] EXPERIMENTUM XXIX.
Page: 85 (71)
[38.] EXPERIMENTUM XXX.
Page: 90 (76)
[39.] PROCESSUS PRIMUS.
Page: 91 (77)
[40.] PROCESSUS SECUNDUS.
Page: 92 (78)
[41.] PROCESSUS TERTIUS.
Page: 93 (79)
[42.] PROCESSUS QUARTUS.
Page: 94 (80)
[43.] PROCESSUS QUINTUS.
Page: 97 (83)
[44.] PROCESSUS SEXTUS.
Page: 99 (85)
[45.] PROCESSUS SEPTIMUS.
Page: 100 (86)
[46.] PROCESSUS OCTAVUS.
Page: 101 (87)
[47.] PROCESSUS NONUS.
Page: 102 (88)
[48.] PROCESSUS DECIMUS.
Page: 103 (89)
[49.] PROCESSUS UNDECIMUS.
Page: 104 (90)
[50.] PROCESSUS DUODECIMUS.
Page: 106 (92)
[51.] EXPERIMENTUM XXXI.
Page: 110 (96)
[52.] EXPERIMENTUM XXXII.
Page: 115 (101)
[53.] EXPERIMENTUM XXXIII.
Page: 115 (101)
[54.] EXPERIMENTUM XXXIV.
Page: 116 (102)
[55.] EXPERIMENTUM. XXXV.
Page: 117 (103)
[56.] EXPERIMENTUM. XXXVI.
Page: 117 (103)
[57.] EXPERIMENTUM XXXVII.
Page: 118 (104)
[58.] EXPERIMENTUM XXXVIII.
Page: 118 (104)
[59.] EXPERIMENTUM XXXIX.
Page: 119 (105)
[60.] EXPERIMENTUM XL.
Page: 120 (106)
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          <pb o="87" file="0101" n="101" rhead="DE MAGNETE."/>
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        <div xml:id="echoid-div46" type="section" level="1" n="46">
          <head xml:id="echoid-head54" xml:space="preserve">PROCESSUS OCTAVUS.</head>
          <p>
            <s xml:id="echoid-s2099" xml:space="preserve">Sumebantur Magnetis in pulverem fracti & </s>
            <s xml:id="echoid-s2100" xml:space="preserve">Salis Gemmæ ana
              <lb/>
            ℨiij. </s>
            <s xml:id="echoid-s2101" xml:space="preserve">ambos pulveres diu inter ſe contritos & </s>
            <s xml:id="echoid-s2102" xml:space="preserve">optime miſtos immiſi
              <lb/>
            crucibulo, quod expoſitum fuitigni in furno Anemi, per trihorium;
              <lb/>
            </s>
            <s xml:id="echoid-s2103" xml:space="preserve">tum refrigeratis omnibus maſſa dabatur firma, crucibulo valde ad-
              <lb/>
            hærens, ubivis interſperſa puncta micantia habens, quæ per Mi-
              <lb/>
            croſcopium conſpecta, erant modo partes Salis Gemmæ pellucidiſ-
              <lb/>
            fimæ in ſuperſicie maſſæ color ferreus apparebat, ex quo plurimum
              <lb/>
            Ferri in hac maſſa hærere ſuſpicabar, in parte inferiori erat maſſa-
              <lb/>
            aſpera, & </s>
            <s xml:id="echoid-s2104" xml:space="preserve">multo nigrior. </s>
            <s xml:id="echoid-s2105" xml:space="preserve">Non poteram pro voto partem ſupe-
              <lb/>
            riorem ſeparare ab inferiori, quod ſperabam me melius facturum,
              <lb/>
            ſi ſecundæ operationi maſſam committerem: </s>
            <s xml:id="echoid-s2106" xml:space="preserve">Eam igitur prius in
              <lb/>
            pulverem redegi, qui ſaporem acrem ſalſumque retinebat, atque a
              <lb/>
            Magnete fortiter attrahebatur.</s>
            <s xml:id="echoid-s2107" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s2108" xml:space="preserve">2. </s>
            <s xml:id="echoid-s2109" xml:space="preserve">Huic pulveri iterum addidi Salis Gemmæ, æqualem copiam,
              <lb/>
            & </s>
            <s xml:id="echoid-s2110" xml:space="preserve">ut ante in crucibulo commiſi Igni vehementiſſimo, in furno Ane-
              <lb/>
            mi, per 2 {1/2} horas, maſſa refrigerata erat firma, cujus ſtratum ſuperius
              <lb/>
            colorem Ferri æmulabatur, pars inferior erat ſpongioſa, rufa, mol-
              <lb/>
            lior; </s>
            <s xml:id="echoid-s2111" xml:space="preserve">ambo hæc ſtrata a ſe mutuo ſeparata redegi in pulverem;
              <lb/>
            </s>
            <s xml:id="echoid-s2112" xml:space="preserve">pulvis ſtrati ſuperioris multo vehementius a Magnete attraheba-
              <lb/>
            tur, quam ſtrati inferioris; </s>
            <s xml:id="echoid-s2113" xml:space="preserve">imo erant in ſtrato inferiori plu-
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            rimæ partes, quæ non a Magnete attrahebantur, cum e contrario
              <lb/>
            omnes in ſtrato ſuperiori alliciebantur.</s>
            <s xml:id="echoid-s2114" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s2115" xml:space="preserve">3. </s>
            <s xml:id="echoid-s2116" xml:space="preserve">Erat itaque multum in ſtrato inſeriori, ſimile illi, quod in ſtrato
              <lb/>
            ſuperiori deprehendebatur, hinc quicquid a Magnete attrahebatur,
              <lb/>
            eliciebam ex ſtrato inferiori, addidique pulveri ſtrati ſuperioris:
              <lb/>
            </s>
            <s xml:id="echoid-s2117" xml:space="preserve">huic iterum admiſcui copiam Salis Gemmæ æqualem, quam immiſ-
              <lb/>
            ſam crucibulo, impoſui Igni fortiſſimo rotæ, excitato ex Carbo-
              <lb/>
            nibus ligneis & </s>
            <s xml:id="echoid-s2118" xml:space="preserve">foſſilibus, continuatoque per 4 horas; </s>
            <s xml:id="echoid-s2119" xml:space="preserve">maſſa dein-
              <lb/>
            de refrigerata exhibebat ſubſtantiam nigram non multum cohæren-
              <lb/>
            tem, valde friabilem, ſed homogeneam: </s>
            <s xml:id="echoid-s2120" xml:space="preserve">adhærebant lateribus
              <lb/>
            crucibuli pelliculæ metalli alicujus, ſed mihi incogniti, argentei
              <lb/>
            coloris, ſplendentes, quæ nullo modo a Magnete attraheban-
              <lb/>
            tur: </s>
            <s xml:id="echoid-s2121" xml:space="preserve">maſſa tota erat in hac operatione valde imminuta, adeo </s>
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