Abstract

This article offers a description of the manuscript Tokyo, National Diet Library, Ms. WA42-29. This manuscript, purchased in London in 1987, contains Latin translations of Aristotle’s logical works, some original works on logic by Boethius, and William of Moerbeke’s Latin translation of De anima. It is most likely identical with a manuscript of a similar composition that disappeared in the first decades of the twentieth century from what is today the Hochschul- und Landesbibliothek Fulda. The manuscript was once part of the collection of Johannes Guldin, Domherr of Konstanz in the fifteenth century. The suggestion that this Guldin was also the author of Questiones veteris et nove logice, preserved in Stuttgart, Württembergische Landesbibliothek, Cod. HB X 2, turns out to be incorrect