Scientific societies and research institutes in Addis Ababa include the Association for the Advancement of Agricultural Sciences in Africa, the Desert Locust Control Organization for Eastern Africa, the Ethiopian Mapping Authority, the Ethiopian Medical Association, the Ethiopian Institute of Geological Surveys, the Geophysical Observatory, the National Herbarium, the Institute of Agricultural Research, and the International Livestock Center for Africa. Another Institute of Agricultural Research is located in Sidamo. The University of Addis Ababa, founded in 1950, maintains faculties of science, technology, and medicine, a college of agriculture, and a school of pharmacy. The Alemaya University of Agriculture, founded in 1952, has faculties of agriculture and forestry and a division of natural and social sciences. Also in Ethiopia are the Jimma Junior College of Agriculture and the Polytechnic Institute at Bahir-Dar. In 1987–97, science and engineering students accounted for 26% of college and university enrollments.