XI c.), Avicenna’s disciple and secretary, inserted between the end of the fourth treatise and the beginning of the fifth treatise of Avicenna’s 'Book of the Soul' (Kitāb al-Nafs). The aim of this article is to outline the textual and editorial vicissitudes of chapters 2-9 of Avicenna’s medical treatise 'On Cardiac Remedies' (Maqāla fī l-adwiya al-qalbiyya) that Abū ʿUbayd ʿAbd al‐Wāḥid ibn Muḥammad al‐Ǧūzǧānī (fl. The transmission, language and interpretation of his Kitāb al-Samāʾ, parts of which have been identified in an acephalous manuscript, and a fragment of his ‘Great Commentary’, are presented and analysed in detail. The present contribution, after giving a survey of the translators’ work – beginning with Ibn al-Biṭrīq, working in the age of al-Maʾmūn and in the circle of al-Kindī – concentrates on the translation, annotation and commentary of the Baghdad physician and philosopher Abū l-Faraǧ ʿAbdallāh ibn al-Ṭayyib (d. The identity and ascription of the extant versions poses a number of problems which only recently, in the light of manuscript findings and the discovery of some early testimonies, can be solved with certainty. Aristotle’s cosmological treatise De Caelo, appropriately named “Book on the Heaven and the World” in the Arabic tradition, was one of the most influential, and – apart from the Organon of logic – the best represented among Aristotle’s authentic works in Mediaeval Arabic translations and commentaries.

ابن النجوم by نهاد شريف