Dot Porter, Curator, Digital Research Services at the University of Pennsylvania Library, offers a video orientation to Penn Library’s LJS 229, Commentaries on Aristotle and Porphyry. The manuscript was written in Provence or Spain, between 1450 and 1499, in Hebrew. It is a 15th-century copy of anonymous commentaries in Hebrew on talkhīṣāt (middle commentaries) by Averroës on Aristotle and Porphyry, originally written in Arabic in the 12th century. The commentaries on Aristotle’s Categoriae and De interpretatione are titled Sefer ha-Maʼamarot and Sefer ha-Melitsah in the manuscript; the two commentaries of Averroës on these works are known as Talkhīṣ kitāb al-maqūlāt and Talkhīs kitāb al-ʻIbārah, respectively. The commentary on Porphyry’s Isagoge is titled Sefer ha-Mavo in the manuscript; the commentary by Averroës on this work is known as Talkhīṣ madkhal Furfūriyūs.
See the full online facsimile of this work in Penn in Hand.