Summaries of treatises on logic by Aristotle and Porphyry (in Latin), 1300 - 1399

The summary of Aristotle, Analytica Priora ends incompletly; four leaves are missing between ff. 15 and 16. These leaves probably contained the end of the writer's summary of the Analytica Priora as well as the beginning of his summary of the Topica. It is possible that the missing leaves also contain a summary of the Analytica Posteriora. The summary of Aristotle, Topica begins incompletely. Marginal notations in several contemporary hands including notes and syllogisms on the front and back pastedowns.

Parchment support (well worn).

Original brown leather over boards; leather badly worn. On bottom of spine in ink: "5".

ff. 18, 140 x 97 (120 x 73) mm.

Written in two columns of 30 ruled lines with vertical bounding lines for each column.

Gothic cursive script, written by a single scribe.

On f. 6v a pen and ink drawing of "arbor Porphiriana" depicts a red-robed man wearing a crown placed over a stylized "tree of being." The tree's heart-shaped leaves correspond to heart shaped cavities inside the figure of the man; from top to bottom the leaves on the left contain the words: "corporea," "animatum," "sensibile," "rationale," and "mortale;" the leaves on the right the opposite of these characteristics: "incorporea," "inanimatum," etc. The man, as the crown of creation, combines these opposites within himself. Under the tree are the words: Plato homo Socrates. There are also three diagrams of syllogisms in red and brown ink on ff. 2r, 4r, and 5v. 1- to 3-line red initials with crudely sketched ornamental extenders throughout. Chapter headings, paragraph markers and sentence strokes in red. Some guide letters for rubricator visible. Prickings in all three outer margins.

Modern foliation