The manuscript proper contains lecture notes written in 1477 in Louven by Magnus Makculloch. These notes are in Latin and are about on lectures about philosophy and logic by Petrus de Mera, Andrea de Alchmaria, and Theodricus Meyssach. The first part of the manuscript (ff. 1r-58v) contains extracts from the six books of Aristotle’s Organon, as well as Porphyry’s introduction to it. The second part of the manuscript (ff. 59r-200r) contains commentaries on the...