Descartes, René, Renati Des-Cartes principia philosophiae

Table of figures

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              <s>
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              161. </s>
              <s>
                <lb/>
              Cur magnes nihil amittat
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              de i*uâ vi, quamvis eam
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              ferro communicet
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              297
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              162. </s>
              <s>
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              Cur haec vis celerrimè
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              ferro communicetur, ſed
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              diuturnitate temporis in
                <lb/>
              eo confirmetur
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              298
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              163. </s>
              <s>
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              Cur chalybs ad eam reci­
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              piendam aptior ſit, quàm
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              vilius ferrum
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              È
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              164. </s>
              <s>
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              Cur major ei communi­
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              cetur à perfectiore ma­
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              gnete, quàm à minùs per­
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              fecto
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              È
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              165. </s>
              <s>
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              Cur ipſa etiam terra vim
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              magnetis ferro tribuat
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              È
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              166. </s>
              <s>
                <lb/>
              Cur vis magnetica in
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              Terrâ debilior ſit, quàm
                <lb/>
              in parvis magnetibus
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              299
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              167. </s>
              <s>
                <lb/>
              Cur acus magnete tactae
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              ſemper ſuae virtutis polos
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              in extremitatibus ſuis ha­
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              beant
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              300
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              168. </s>
              <s>
                <lb/>
              Cur poli magneticae vir­
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              tutis non ſemper accuratè
                <lb/>
              verſus Terrae polos diri­
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              gantur, ſed ab iis variè
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              declinent
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              È
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              169. </s>
              <s>
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              Cur etiam interdum iſta
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              declinatio cum tempore
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              mutetur
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              301
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              170. </s>
              <s>
                <lb/>
              Cur in magnete ſupra
                <lb/>
              unum ex ſuis polis erecto
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              minor eſſe poſſit, quàm
                <lb/>
              cùm ejus poli aequaliter à
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              Terrâ diſtant
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              È
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              171. </s>
              <s>
                <lb/>
              Cur magnes trahat fer­
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              rum
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              302
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              172. </s>
              <s>
                <lb/>
              Cur magnes armatus,
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              multò plus ferri ſuſtineat
                <lb/>
              quàm nudus
                <lb/>
              È
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              173. </s>
              <s>
                <lb/>
              Cur ejus poli, quamvis
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              contrarii, ſe invicem ju­
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              vent ad ferrum ſuſtinen­
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              dum
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              303
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              174. </s>
              <s>
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              Cur gyratio rotulae fer­
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              reae, à vi magnetis cui ap­
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              penſa eſt, non impediatur
                <lb/>
              304
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              175. </s>
              <s>
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              Quomodo & quare vis
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              unius magnetis augeat vel
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              minuat vim alterius
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              305
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              176. </s>
              <s>
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              Cur magnes, quantumvis
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              fortis, ferrum ſibi non
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              contiguum, à magnete de­
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              biliore attrahere non poſſit
                <lb/>
              È
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              177. </s>
              <s>
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              Cur magnes debilis, aut
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              ferrum, à magnete fortiori
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              ferrum ſibi contiguum poſ­
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              ſit detrahere
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              3o6
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              178. </s>
              <s>
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              Cur, in his Borealibus
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              regionibus, polus Auſtra­
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              lis magnetis ſit fortior Bo­
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              reali
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              È
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              179. </s>
              <s>
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              De iis quae obſervari poſ­
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              ſunt in ferri limaturâ circa
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              magnetem ſparſâ
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              307
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              180. </s>
              <s>Cur lamina ferrea, polo
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              magnetis conjuncta, ejus
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              vim trahendi vel conver­
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              tendi ferri impediat
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              3o9
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              181. </s>
              <s>
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              Cur eandem nullius alte­
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              rius corporis interpoſitio
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              impediat
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              310
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              182. </s>
              <s>Cur magnetis poſitio non
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              conveniens ejus vires paul­
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              latim imminuat
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              È
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              183. </s>
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              Cur rubigo, humiditas &
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              ſitus, eas etiam imminuat,
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              &svehemens ignis planè
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              tollat
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              È
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              184. </s>
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              De vi attractionis in ſuc­
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              cino, cerâ, reſinâ, & ſimi­
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              libus
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              311
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              185. </s>
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              Quae ſit cauſſa iſtius at­
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              tractionis in vitro
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              312
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              186. </s>
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              Eandem ipſius cauſſam in
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              reliquis etiam videri
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              313
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              187. </s>
              <s>Ex dictis intelligi, quae­
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              nam cauſſae eſſe poſſint re­
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              liquorum omnium </s>
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