This worn paper manuscript from the Carthusian Monastery of Basel contains several treatises (in part with commentaries) for calculating the annual calendar, in particular for determining the movable holidays, such as the Computus chirometralis of Johannes of Erfurt or the Computus Nerembergensis. In addition, the volume contains a series of Old Frisian and Low German texts: sermons for weddings, recipes, a Latin-German glossary, as well as a short version of the “niederdeutsche Apokalypse”. (flr)

Online Since: 10/04/2018

A composite manuscript written in the 9th, 10th and 14th centuries, probably in Einsiedeln or southwestern Germany. It contains, among other things, glosses on the Gospels, the Annales Heremi from the birth of Christ to the year 940, and various astronomical treatises, including the Sphaera by John of Sacrobosco and the Computus by Helpericus of Auxerre. (ber)

Online Since: 12/19/2011

This composite manuscript brings together assorted treatises, mainly computistical and astronomical works (by Jakob Twinger von Königshofen, Johannes Münzinger, Johannes de Sacrobosco and others). It was written between 1388 and 1394 in Strassburg and in Rottweil on the Neckar (Wurttemberg) by Konrad Justinger and by Werner Mardersberger. One of the scribes, Werner Mardersberger was later director of the Solothurn Abbey School. The volume was acquired by the Solothurn Abbey Library in 1504. (hol)

Online Since: 12/21/2009

This composite volume, written between 1425 and 1425 in the Lake Constance regions, though not at the Abbey of St. Gall, contains Latin versions of a great many computistic/astronomical/cosmographical treatises, including the widely disseminated work De sphaera mundi by John of Sacrobosco and his arithmetical foundation work Tractatus de algorismo. The manuscript, organized according to the calendar, also contains illustrations: the twelve signs of the zodiac, a map of the winds, sketches of the ecliptics of the sun and moon, planets and constellations, a diagrammatic guide for bloodletting, a set of early medieval Terra Orbis-type world maps, and (on pages 265 and 266) twelve simple illustrations for the months with brief rhyming proverbs in German derived from the nature- and landscape-dominated everyday life of the people of the late middle ages. (smu)

Online Since: 10/04/2011