Dimitri Gutas, Professor of Arabic and Graeco-Arabic (Ph.D. Yale 1974) did his undergraduate and graduate work at Yale in classics, history of religions, and Arabic and Islamic studies. He studies and teaches medieval Arabic and the medieval intellectual tradition in Islamic civilization from different aspects. At the center of his concerns lies the study and understanding of classical Arabic in its many forms as a prerequisite for the proper appreciation of the written sources which inform us about the history and culture of Islamic societies. He also has an abiding interest in the transmission of Greek scientific and philosophical works into the Islamic world through the momentous Graeco-Arabic translation movement in Baghdad during the 8th-10th centuries AD (2nd-4th Hijri). Out of these two interests grew the longstanding project to compile, in collaboration with Professor Gerhard Endress of Bochum University, Germany, A Greek and Arabic Lexicon, which provides “materials for a dictionary of the medieval translations from Greek into Arabic” (Leiden 1992 and ff.). The Lexicon is compiled in fascicles that appear in regular intervals, and interested graduate students in the Department have the opportunity to participate in the continuing project and sharpen their linguistic skills in both classical Arabic and classical Greek.