Kislak Center for Special Collections, Rare Books and Manuscripts, Oversize LJS 224. Verona?, Italy, 1425. Commentary on Aristotle's Posterior analytics, in which syllogistic reasoning is applied to scientific proof or demonstration. The first and second gatherings end with the text written in the lower margin of the last verso, as if lacking space and nevertheless finishing before the start of the next gathering (f. 13v, 23v). Occasional marginal corrections and notes.Penn Libraries Catalog: go to Find