incidentibus > curtlinter iplbs infiniti radii cadant,erit aliquis,cujus radius, velut liic OI liinc inde ar-cus sequales vel fimiles O D 6^ IH ab-fcindet , adcoque conftituet refradumOI duobus aiiis refra6lis D E > &; G Hparaiielum. Cum ergo fi radius OI po-naturincidens, lioc…
Optics, Geometrical · Optical instruments
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