...»»•••»•■ … •?,. Cx H Sed Syntagma III Caput IV l79 • Sed qud cotum artificium melius intelligatur, per figuram declaremus. Sir Arjfi«%pbje&um AB quod per vitrum C*D in foramine obfcuri cubiculi collocaium ^scr^trajiciac fpecies. Abfque fpeculo fi loco G M,charca opponatur , figura obje- liusdcd;»,&i…
Optics, Geometrical · Optical instruments
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