Includes Arabic text, with German translation on opposite pages, of Maqālat al-Lām, comprising faṣl 13-16 of the author's Fī ʻilm mā baʻd al-ṭabīʻah, chiefly a compendium of book 12 of Aristoteles' Metaphysica. Summary also in English and Arabic. Includes indexes. Originally presented as the editor's thesis, Göttingen, 1972.