works of W.H. Worrell and Vycichl. Maher also consulted documents held in libraries and monasteries throughout Egypt, including Coptic manuscripts written in the Arabic script, such as the Damanhour euchologion, and tenth-century Arabic texts written in Coptic letters, and he analysed scribal transcription errors in the manuscripts tradition. References Crum, Walter Ewing. A Coptic dictionary. Oxford : Clarendon Press, 1939. Ishak, Emile Maher. The Phonetics and Phonology of the Bohairic Dialect of Coptic and the Survival of Coptic Words in the Colloquial and Classical Arabic of Egypt and of Coptic Grammatical Constructions in Colloquial Arabic. Volumes I - IV. (D.Phil. Thesis submitted to the University of Oxford, September 1975). AVAILABLE ONLINE Maher, Emil, PhD Copts and their language Maher, Emil, PhD Cagi Bulletin de la Société d'Archéologie Copte (BSAC), Le Caïre. Satzinger, Helmut. The pronunciation of late Bohairic. In: Aziz S. Atiya (ed.), The Coptic Encyclopedia. Vol. 8, 60–65. Sobhy, Georgy PG (1915). The pronunciation of Coptic in the Church of Egypt. Journal of Egyptian Archaeology 2(1):15–19.) Worrell, William Hoyt. Coptic sounds. University of Michigan Studies Humanistic Series; XXVI. Ann Arbor : University of Michigan press, 1934. Worrell, William Hoyt. Coptic Texts in the University of Michigan Collection (With a study in the popular traditions of Coptic). University of Michigan Studies Humanistic Series; 46. Ann Arbor : London, 1942. External links Copticsounds – a resource for the study of Coptic phonology Fr. Shenouda Maher Isaac: the Original Bohairic pronunciation Information about both the new and old coptic Debate concerning the use of Old Bohairic vs Greco Bohairic forum aims to revive the old pronunciation Coptic language Coptic Orthodox Church Linguistic purism