orpm lummo-fumin punclo fcil. E fe mucuo fecare. Nam radii AC 8c BD cum ucdi-que dimeriente foraminis fcilicet DC& luminoff corporis AB confticuuncduo triangulafe mucuo adverfis mucrombus refpiciencia uc A E B , & CEDquorum bafes A B & C D ciim maximc diftent neceffe eft ipfos… … B i i Corollarium I. Hinc patct quod fi corporis luminofi A B atque foraminis F G dirn^ N tiente^ :¥.
Optics, Geometrical · Optical instruments
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