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 76
,occurret lineis forma referentibus in G H,erit igitur G H forma minor re vifa E F. PJerunque etiam dextra finiflra, & finiftra dextra & quar fur fum deorfum , & qua? deorfum furfum viderentur . Efto oculus I A B L C D»vifibile obiedum E F veniant ad pupillam A B, li- ne£ E A, & F B , ipfa E A… … Vndc
Optics
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
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