Abstract
Among the many logical works by Abū Nasr Muhammad al-Fārābī (870–950), there are two commentaries on particular books or points of Aristotle's Topics, whose original Arabic text has been apparently lost. A number of quotations of one or both of them, translated into Hebrew, has been recently found in a philosophical anthology by a fourteenth-century Provençal Jewish scholar, Todros Todrosi. In this article, a detailed list of these quotations is given, and a tentative short examination of the contents of each of them is offered.