Dot Porter, Curator, Digital Research Services at the University of Pennsylvania Library, offers a video orientation to Penn Library’s LJS 449. This manuscript was written in Germany, ca. 1446, in Latin and German, and it is a compilation of Latin and German texts concerning astronomy, astrology (including resources for the determination of favorable and unfavorable days and a brief treatise on the astrological properties of precious stones attributed in the manuscript to the 8th/9th-century Jewish astrologer Zaël, but also known as the lapidary of Techel), and medicine (including a brief treatise on wine used for medical purposes, attributed in another manuscript to Albertus Magnus).
See the full online facsimile of this work in Penn in Hand.
The Schoenberg Institute for Manuscript Studies 