Biancani, Giuseppe, Aristotelis loca mathematica, 1615
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              tatis inſpectionem. </s>
              <s id="s.001781">Is igitur ſect. </s>
              <s id="s.001782">3. cap. 5. de hoc Ariſt. loco ſie loquitur:
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              hic locus diligenter expendendus videtur tum quia difficillimus eſt,
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              quia
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              multis anſam dedit reprehendendi Ariſt. tanquam puerilia effutientem. </s>
              <s id="s.001783">tex­
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              tus
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              Ariſt. duplicem habet ſenſum; alter à quo non abhorret
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              ;
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              vt tertia illa pars ad montem referatur, quaſi dicat, quod antequam Sol ima
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              montis illuſtret, illuminat illius cacumen
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              ad tertiam montis partem:
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              ſed hæc Mazonij expoſitio nulla eſt, cuiuſlibet enim montis etiam medio­
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              cris altitudinis Sol illuſtrat non ſolum tertiam partem, ſed & dimidium, &
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              duas tertias, & ferè totum, antequam ad planam illius baſim deſcendat.
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              <s id="s.001784">Ego ſic exponendum cenſeo, vt Ariſt. dicat, mane, ideſt initio Crepuſculi
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              matutini, & veſpere, ideſt, in fine Crepuſculi veſpertini ipſius tertiam par­
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              tem illuminatam conſpici ab ijs, quorum horizonti tunc incipit, vel deſinit
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              Crepuſculum; ex quibus illi neceſſariò reſpectu Caucaſi ſunt occidentales,
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              quì manè hoc vident, vti ſunt ij, qui in Euxino, ſeu Ponto, & Meotide naui­
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              gant, vel loca proxima inhabitant: illi verò, qui in fine Crepuſculi veſper­
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              tini hoc cernunt, neceſſariò reſpectu Caucaſi erunt orientales. </s>
              <s id="s.001785">Alter huius
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              loci ſenſus eſt, ait Mazonius, vt non de tertia montis parte, ſed de tertia
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              noctis portione loquatur, ita vt manè. </s>
              <s id="s.001786">v. g. initio tertiæ, & vltimæ noctis
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              parte, cacumen Caucaſi illuminetur. </s>
              <s id="s.001787">hæc ille. </s>
              <s id="s.001788">vbi animaduertendum expo­
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              ſitionem
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              parùm differre à noſtra modò allata, cùm
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              in idem tem­
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              pus recidat; nam ſi dixerimus initio Crepuſculi matutini illuminari ter­
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              tiam partem Caucaſi, tempus hoc coincidit cum initio tertiæ partis noctis,
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              quantitas enim Crepuſculi in poli eleuatione 47. grad. qualem habet Cau­
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              caſus, per totam æſtatem tres horas plus minus continet, vt patet ex tabu­
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              la quantitatis Crepuſculi, quæ eſt apud Nonium, & apud Clauium in ſphæ­
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              ra vltimæ editionis; quæ quantitas reperiri geometrico calculo poteſt, vt
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              docent Nonius, Clauius, & Maginus lib. 10. primi mob. </s>
              <s id="s.001789">quod quidem trium
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              circiter horarum tempus eſt tertia ferè noctis pars in ijs regionibus, quibus
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              polus eleuatur 47. grad. ſiue ergo dicamus id contingere initio Crepuſculi,
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              ſiue initio tertiæ partis noctis, erit idem tempus, trium ſcilicet horarum.
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              <s id="s.001790">ſi ergo, inquit Mazonius, ſequamur priorem declarationem, neceſſarium
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              eſt dicere, quod ea tertia pars montis, quæ initio auroræ Solis lumine per­
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              funditur, ſit ea montis altitudo, qua ipſe exuperat illam aeris regionem,
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              vnde Crepuſculum incipit apparere. </s>
              <s id="s.001791">quo poſito aptè, ac ſagaciter altitudi­
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              nem Caucaſi inueſtigat hoc pacto. </s>
              <s id="s.001792">præmittit autem ſeptem propoſitiones
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              apud Mathematicos manifeſtas, quas ego miſſas facio cum non mihi neceſ­
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              ſariæ videantur. </s>
              <s id="s.001793">poſtea ſic diſcurrit; His ergo ita ſe habentibus, dico nos in­
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              uenire poſſe viam, qua ſaltem rudi Minerua, montis altitudinem comper­
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              tam habeamus. </s>
              <s id="s.001794">ſi enim in principio Crepuſculi v. g. matutini (ita enim, vt
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              ſupra annotaui intelligendus eſt Ariſt.) illuminatur tertia pars, neceſſarium
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              videtur tertiam illam partem ſupra eam regionem collocari, ex qua Cre­
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              puſculum in planitie apparere incipit, ſed illa regio ex Alhazino, & Vitell.
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              de Crepuſculis milliaribus 52. à terra recedit, ergo duæ tertiæ montis par­
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              tes, quæ Solem initio auroræ non vident, ſunt 52. milliaria ad perpendicu­
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              lum, & tertia alia pars illuminata eſt ad perpendiculum 26. milliaria: ita
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              vt totius montis altitudo perpendicularis ſit 78. mill. ſed papè in quos </s>
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