Eugene Cordes Eugene Cordes, a retired instrument maker, died March 26 at his home in Champaign. He was 84. Cordes worked in the physics department for more than 37 years, retiring in 1973. Survivors include his wife, Aileen; a son; two daughters; a brother; a sister; and several grandchildren and great- grandchildren. Memorials may be made to the Carle or Covenant hospice programs, or Pets in Need, P.O. Box 58, Ringwood, IL 60072. Duane H. Cooper Duane H. Cooper, a professor emeritus of electrical and computer engineering, died April 4 at home in Champaign. He was 71. Cooper also was a professor of physics and a research professor in the UI's Coordinated Science Lab. He received bachelor's and doctoral degrees in physics from the California Institute of Technology in 1950 and 1955, respectively. In 1954, he joined the UI's Control Systems Laboratory, subsequently the Coordinated Science Laboratory, and then the electrical and computer engineering department. He contributed to the ongoing development in computer-based instruction and was a co-inventor of the plasma display panel. Cooper organized the university's Task Force on Noise, which was concerned with environmental problems. He was a fellow of the Audio Engineering Society in 1966 and received the Emile Berliner Award of the society in 1968. He was elected to honorary membership in the society in 1976. He received the Gold Medal Award from the Audio Engineering Society in 1982 and served as president of the society from 1975 to 1976. Cooper was a senior member of the Institute of Electrical and Electronics Engineers and of its Acoustics, Speech and Signal Processing Society. He also was a member of the American Physical Society and the Acoustical Society of America. Survivors include his wife, Phyllis; two daughters; four grandchildren; a brother; and two sisters. Memorial contributions may be made to the Unitarian Universalist Church, Urbana, or an organization of the donor's choice. Wayne Craig Wayne Craig, a retired instrument maker, died March 24 at Covenant Medical Center, Urbana. He was 70. Craig worked for 32 at the Materials Research Laboratory. He retired in 1983. Survivors include his mother; three children; one stepbrother; and four grandchildren. Memorial contributions may be made to the Covenant Hospice Care Program, 1400 W. Park St., Urbana. James B. Kitzmiller James B. Kitzmiller, professor emeritus of zoology, died March 30, at his home in Vero Beach, Fla. He was 76. Kitzmiller, known as a pioneer in mosquito cytogenetics, joined the faculty UI in 1948, and retired in 1974 to devote his time to research. He was chairman of the department of zoology at the UI from 1957 to 1964. After leaving Illinois, he was a visiting professor at the Florida Medical Entomology Laboratory at the University of Florida. He received a bachelor's degree in zoology from DeSales College and a doctoral degree in genetics from the University of Michigan. He was an Eagle Scout. Kitzmiller was awarded a Fulbright Scholarship to Italy in 1953. He was a consultant to the World Health Organization and the National Institutes of Health on many occasions. The American Mosquito Control Association awarded him the Meritorious Service Award in 1978 and the John Belkin Award in 1987. Survivors include his wife, Dorothy; four children; three grandchildren; and five stepchildren. Memorial contributions may be made to the Florida Medical Entomology Laboratory Library, University of Florida, 200 Ninth St. S.E., Vero Beach, Fla. 32962. Ralph Lorenz Ralph "Doc" Lorenz, professor emeritus of forestry, died April 2 at Meadow Brook Health Center, Urbana. He was 87. Lorenz received a bachelor's degree in forestry in 1930 and a doctorate in plant physiology in 1938 from the University of Minnesota. He joined the UI faculty in 1938 at the inception of the forestry department and retired in 1973. In addition to his research in forest planting and woodland management, Lorenz taught dendrology and silviculture to undergraduates. He was a member of the Society of American Foresters; the American Association for the Advancement of Science, which named him a fellow in 1940; the Illinois Technical Forestry Association, the Illinois State Academy of Science, and the American Association of University Professors. Survivors include a daughter, a son and two grandchildren. Memorial contributions may be made to the UI Foundation for the Ralph Lorenz Memorial Fund to support faculty scholarships for undergraduates in the forestry department and may be sent to Joyce Canaday, Forestry Department, W503 Turner Hall.