1. Porphyry, Isagoge, in Latin translation by Boethius (ff. 1-4) -- 2. Predicamenta (ff. 4v-10) -- 3. De interpretatione, in Latin translation by Boethius (ff. 10v-13v) -- 4. Liber sex principiorum, perhaps by Gilbert de la Porrée (ff. 14-15v) -- 5. Analytica posteriora (ff. 16-30v) -- 6. Sophistici elenchi (ff. 31-40) -- 7. Analytica priora (ff. 40v-45v).
Written in Spain in a gothic bookhand with colored initials with pen flourishes. Title from previous catalog. In a 19th-cent. half-roan with marbled paper binding. In a protective tray case, 36 cm. MS Lat 38. Houghton Library, Harvard University. Also available in an electronic version.