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Ioan. Baptistae Portae neap. De refractione optices parte, libri nouem (1593)

Porta, Giambattista della, approximately 1535-1615 · Neapoli : Ex officina Horatij Saluiani : Apud Io. Iacobum Carlinum, & Antonium Pacem · leaf 111

An illustration from Ioan. Baptistae Portae neap. De refractione optices parte, libri nouem, 1593, leaf 111
DE VISIONE. LIB. IIIL io$ vt oculus exiftens in C, quarta cceli videre poffet A B , maiorem rc&o A C B foraminis aperturam habere deberet , … Practeroa nec fphaera vucae concentrica eft glaciali , vnde etfi glacialis , & mundi concentricae eflent , non ob id vuea con¬ centrica eft > concludit ergo non pofle videre cceli medieta¬ tem . Caufa vniuerfalis vero ait , diametrum vuea» efte latus quadrati , quod defcribitur intra fphaeram vuea?…

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Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.

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