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Manuscript Monday: LJS 497 – Canones vel operationes…

Aylin Malcolm, PhD student at the University of Pennsylvania, offers a video orientation to Penn Library’s LJS 497, Canones vel operationes in operando quadrante. This manuscript was written in Italy, ca. 1502, in Latin, and it is an illustrated treatise on the use of the astrolabe quadrant, including locating and predicting the positions of stars; computing the 12 houses of the horoscope; and measuring altitude, latitude, and time. .

You can see the full online facsimile of this work in Penn in Hand and you can download all of the images and metadata from OPenn. You can also download a copy of this video from ScholarlyCommons, the University of Pennsylvania’s open access institutional repository.