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Perspectiva horaria :sive de horographia gnomonica tum theoretica, tum practica libri 4 ; in quibus gnomonices antiqui fines latius protenduntur: traditurque ratio, & delineatio geometrica expeditissima non solum communium, quae radio directo vel umbra pariter directa; sed etiam aliorum novae inventionis solarium horariorum ... ; in his vero ... habet thaumantias catoptrica atque dioptrica, id est reflexus, ac refractus a speculo cylindrico solaris radius, omnes, qui in sphaera cogitari possunt, circulos ...

Augsburg, Staats- und Stadtbibliothek -- 2 Math 61