HARVARD UKRAINIAN STUDIES EUCHARISTERION: Essays presented to OMELJAN PRITSAK on his Sixtieth Birthday by his Colleagues and Students Edited by IHOR EVENK0 and FRANK E. SYSYN with the assistance of Uliana M. Pasicznyk Volume III/IV 1979-1980 Part 1 ,‘. ‘. : Ukrainian Research Institute, Harvard University, Cambridge, Massachusetts