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 handwritten notes

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            <s xml:id="echoid-s1104" xml:space="preserve">
              <pb o="49" file="0063" n="63" rhead="DE MAGNETE."/>
            t
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            am ſuperior, quam inferior, demtis lateribus, erat parva: </s>
            <s xml:id="echoid-s1105" xml:space="preserve">fiebat ta-
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            men attractio ad eandem diſtantiam a Magnete, quam in Exper.
              <lb/>
            </s>
            <s xml:id="echoid-s1106" xml:space="preserve">XX. </s>
            <s xml:id="echoid-s1107" xml:space="preserve">in quo ſuperficies ferri A B C D, Magneti eidem oppoſita, tam
              <lb/>
            ſuperior quam inferior, erat quidem duodecies, imo multo
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            amplior; </s>
            <s xml:id="echoid-s1108" xml:space="preserve">in diſtantiis tameu propioribus, idem ferrum Experimen-
              <lb/>
            ti XIX. </s>
            <s xml:id="echoid-s1109" xml:space="preserve">multo fortius attrahebatur, quam in Exp. </s>
            <s xml:id="echoid-s1110" xml:space="preserve">XX. </s>
            <s xml:id="echoid-s1111" xml:space="preserve">uti ex
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            comparatis tabulis videri poteſt: </s>
            <s xml:id="echoid-s1112" xml:space="preserve">in quibus obſervamus, ſuperficiem
              <lb/>
            minorem ferri attractam fuiſſe majoribus viribus, quam fuit ferri
              <lb/>
            ſuperficies major: </s>
            <s xml:id="echoid-s1113" xml:space="preserve">Non tamen deduci inde poteſt, quo ſuperficies
              <lb/>
            ferri minor obvertitur Magneti, eo fieri majorem attractionem, nam
              <lb/>
            alia attuli experimenta cum pede ferreo circini inſtituta, quæ ex-
              <lb/>
            hibuerunt attractionem ferri acuti ad Magnetem eſſe minorem,
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            quam ejuſdem ferri obtuſioris: </s>
            <s xml:id="echoid-s1114" xml:space="preserve">quamobrem dabitur ſuperficies deter-
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            minatæ magnitudinis, determinatæ ferreæ maſſæ, quæ à Magnete
              <lb/>
            maxime attrahetur, & </s>
            <s xml:id="echoid-s1115" xml:space="preserve">aliæ ſuperficies, hâc majores vel minores, mi-
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            nus attrahentur. </s>
            <s xml:id="echoid-s1116" xml:space="preserve">Plura corollaria ex his experimentis deducere po-
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            tuiſſem, verum præſtare ea opinabar, quæ evidentiſſima ſunt, & </s>
            <s xml:id="echoid-s1117" xml:space="preserve">
              <lb/>
            multis comprobantur obſervationibus, quam quæ ex hac aut illâ
              <lb/>
            tantum ſluerent,</s>
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          <p>
            <s xml:id="echoid-s1118" xml:space="preserve">Scholion. </s>
            <s xml:id="echoid-s1119" xml:space="preserve">Primus, quantum novi, omnium Hauksbejus inqui-
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            quiſivit proportionem virium Magneticarum in variis diſtantiis
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            Magnetis a ferro: </s>
            <s xml:id="echoid-s1120" xml:space="preserve">methodus ejus, prorſus diverſa a noſtrâ,
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            quamvis omnium ſuffragia non latura ſit, tamen cognoſci meretur,
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            ob effectus in ea obſervatos: </s>
            <s xml:id="echoid-s1121" xml:space="preserve">proſtat autem deſcripta in Philoſ.
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            </s>
            <s xml:id="echoid-s1122" xml:space="preserve">Tranſactions N° 335. </s>
            <s xml:id="echoid-s1123" xml:space="preserve">p. </s>
            <s xml:id="echoid-s1124" xml:space="preserve">506. </s>
            <s xml:id="echoid-s1125" xml:space="preserve">vel in Compendii vol. </s>
            <s xml:id="echoid-s1126" xml:space="preserve">4. </s>
            <s xml:id="echoid-s1127" xml:space="preserve">part.</s>
            <s xml:id="echoid-s1128" xml:space="preserve">, 2. </s>
            <s xml:id="echoid-s1129" xml:space="preserve">pag. </s>
            <s xml:id="echoid-s1130" xml:space="preserve">
              <lb/>
            295.</s>
            <s xml:id="echoid-s1131" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s1132" xml:space="preserve">Sumſit Vir artificio ſiſſimus Quadrantem, cujus radius 4. </s>
            <s xml:id="echoid-s1133" xml:space="preserve">ped.
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            </s>
            <s xml:id="echoid-s1134" xml:space="preserve">quem poſuit ſupra ſolum, in centro ponebatur acus rotatilis; </s>
            <s xml:id="echoid-s1135" xml:space="preserve">
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            quæ ſibi commiſſa, ſtabat in Quadrante ad grad. </s>
            <s xml:id="echoid-s1136" xml:space="preserve">o. </s>
            <s xml:id="echoid-s1137" xml:space="preserve">tum Magnetem
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            imponebat aſſeri ita, ut polus ejus jaceret in eodem plano cum Qua-
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            drante & </s>
            <s xml:id="echoid-s1138" xml:space="preserve">acu, & </s>
            <s xml:id="echoid-s1139" xml:space="preserve">moveri poſſet juxta limbum Quadrantis a gradu
              <lb/>
            in gradum, & </s>
            <s xml:id="echoid-s1140" xml:space="preserve">a diſtantia una in aliam. </s>
            <s xml:id="echoid-s1141" xml:space="preserve">Magnes erat figuræ irregu-
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            laris, & </s>
            <s xml:id="echoid-s1142" xml:space="preserve">circiter 6. </s>
            <s xml:id="echoid-s1143" xml:space="preserve">Librarum. </s>
            <s xml:id="echoid-s1144" xml:space="preserve">fecit vero Experimenta cum duabus
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            acubus, quarum una fuit 3. </s>
            <s xml:id="echoid-s1145" xml:space="preserve">poll. </s>
            <s xml:id="echoid-s1146" xml:space="preserve">longa, altera 6. </s>
            <s xml:id="echoid-s1147" xml:space="preserve">poll. </s>
            <s xml:id="echoid-s1148" xml:space="preserve">ſed ſemper
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            invenit breviorem eſſe meliorem.</s>
            <s xml:id="echoid-s1149" xml:space="preserve"/>
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          <p>
            <s xml:id="echoid-s1150" xml:space="preserve">In tabulis autem continentibus hæc Experimenta obſervandum </s>
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