A large section from a hitherto unknown Hebrew grammatical text, written in the tenth century by the Karaite scholar 'Ab? Ya'q?b Y?suf ibn N of Jerusalem, is analysed in detail. The volume includes an annotated English translation.

Geoffrey Khan, Ph.D. (1984) in Semitic Languages, School of Oriental and African Studies, London University, is currently Reader in Semitic Philology at the University of Cambridge, England, and is a Fellow of the British Academy. He has published widely on Semitic linguistics and edited manuscripts of numerous medieval texts and documents.