«TKWr^.» ^ri SYNTAGMA n. CAPUT VII. 59 congrmt cum allo Imho decHvi,facio ad extremitates concavitatis: ferfelio hujmmodi limbo declivija.m partem canvexam methodofupra tradita perficio. Ita monet De-chales* -\.i;ui ■ini;;
Optics, Geometrical · Optical instruments
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