Gyorgy Kovacs, Academician and former Director General of VITUKY, Budapest, Hungary, died April 21, 1988. He was past president of the International Association of Hydrologic Sciences.
William C. Ackermann, retired chief of the Illinois State Water Survey, Champaign, Ill., and professor at the University of Illinois, died June 9, 1988. His long and distinguished career included membership in AGU's Hydrology Section since 1938. He was a Fellow of AGU, Hydrology Section President in 1962, and President of AGU in 1966. He was president of IAHS in 1970–1971.