  9. Spurious and doubtful translations  Many other translations are attributed to Ibn Tibbon in manuscripts, manuscript catalogues, and later sources. Most are clearly spurious; but two are worth mentioning. Isaac Abarbanel refers to a translation by Ibn Tibbon of Maimonides’ introduction to chapter ten of Mishnah Sanhedrin, but this translation does not survive. An anonymous translation of the text, published by Kupfer, is clearly not his work. The second is a translation of ‘Ali b. Ridwan’s commentary on Galen’s Ars parva. According to the colophon, this translation was completed by Ibn Tibbon in Béziers in 1199. If this attribution were correct, it would contribute important information to Ibn Tibbon’s biography. It would also establish the very early existence of an Arabic medical text in Hebrew. The translation itself, however, uses terms such as nirdaf for synonym that were not part of Ibn Tibbon’s translation lexicon. If it is his work it was done much later or revised by a later hand (cf. Freudenthal and Fontaine).