Scope and Contents Papers of Charles Schweighauser: Box 1 includes correspondence, memos, committee minutes, course proposals, lecture notes and examinations. Of particular interest are materials on Halley's comet (1985) and on the Sangamon River Valley. The file also contains a course, lecture series, pamphlet and videotape on Halley's Comet as a natural and historical phenomenom. Box 5: contains "The Sangamon River Valley" a course he taught every summer, (1983-89). It combined ecological, social and...