“…Only a few years ago, Aaron M. Butts 13 came to the conclusion that, in fact, the author of the book reviewed here had also composed this lexicon. Based on the nomenclature of Bar ῾Alī's glosses, Grigory Kessel recently argued in favour of an identification of a hitherto unknown monumental Syriac handbook on medicine preserved in an anonymous Damascus manuscript (Syrian Orthodox Patriarchate, 238) as another work by our ῾Īsā ibn ῾Alī 14 .…”