Anmtatio 1. Sicuthorblogiumverticale modb conftruere docuimusj pari modo polTuntaliaquxcunquehbrologia ex Lentibus convexisconftrui,dummodo debite fituen-tur in inftrumento obkrvatorioyacdemdc obfervatio probepcragatur. Annotatio 11, Non eft neceflfe ad hujusmodi horologia hyalina conftruenda,…
Optics, Geometrical · Optical instruments
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