Dot Porter, Curator, Digital Research Services at the University of Pennsylvania Library, offers a video orientation to Penn Library’s LJS 191, a treatise on astronomy and astrology. This manuscript was written in England, ca. 1496, in English, and it is a Treatise in nine chapters addressing ephemerides, astrological signs, planets, their aspects, fixed stars, weather forecasting, and favorable days for various activities. These are followed by three canons for favorable times for bloodletting, giving medicine, and planting, with one table relating the signs of the zodiac and the planets.
See the full online facsimile of this work in Penn in Hand.