ciuras deferens, quarum ea efl a fpeculo difiantia , qua objeHa infitu ereBomultum atigentur, non interveniente tamen confufione j quod experientia facile docebit.Si ergo teBispiBuris, ita tamen , ut ea qud fpecu/o opponitur, illuminari pofpt y oculusinfpeculum infpiciat j depreSendet piHuras… … I !(«i> tn 1* i »:t:. !.!1;*- ;.: ...i i ii
Optics, Geometrical · Optical instruments
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