as patrons to the Spanish. Sarton acknowledged that Julian Ribera was the leading Spanish Arabist. Sarton also was interested and wrote articles on Ribera's research on the transition of Eastern music to the West. Sarton later associated his interest in scientific diffusion with Ribera's interest in the transmission of music because in medieval times, music was commonly associated with mathematics and a part of the quadrivium. Sarton believed that the Islamic contribution to science was the most "progressive" element in medieval learning and was outraged when Western medieval studies ignored it. By the time of his death, he had completed only the first three volumes: I. From Homer to Omar Khayyam; II. From Rabbi Ben Ezra to Roger Bacon, pt. 1–2; and III. Science and learning in the fourteenth-century, pt. 1–2. Sarton had been inspired for his project by his study of Leonardo da Vinci, but he had not reached this period in history before dying. However one series of lectures Sarton gave during his first year at Harvard discussed da Vinci and were entitled " Science and Civilization in the Time of Leonardo da Vinci, Scientist and Artist." After his death (March 22, 1956, Cambridge, Massachusetts), a representative selection of Sarton's papers was edited by Dorothy Stimson. It was published by Harvard University Press in 1962. History of Science Society In honor of Sarton's achievements, the History of Science Society created the award known as the George Sarton Medal. It is the most prestigious award of the History of Science Society. It has been awarded annually since 1955 to an outstanding historian of science selected from the international scholarly community. The medal honors a scholar for lifetime scholarly achievement. Sarton was the founder of this society and of its journals: Isis and Osiris, which publish articles on science and culture. George Sarton was the editor of his journal, Isis, from 1913 until 1952, when he retired and Bernard Cohen took over as editor for the journal. Selected publications Articles 1924: 1927–48: Introduction to the History of Science (3 v. in 5), Carnegie Institution of Washington Publication # 376, Baltimore: Williams and Wilkins, Co. 1951: "The Incubation of Western Culture in the Middle East: a George C. Keiser Foundation Lecture", March 29, 1950, Washington, D.C. Books 1927: Introduction to the History of Science (I. From Homer to Omar Khayyam) 1931: Introduction to the History of Science (II. From Rabbi Ben