Contains budget sheets, clippings, committee minutes, correspondence, departmental review reports, organizational charts, personnel records, research records, and photographs and other visual materials. Aside from the L3 Project series, the records are most informative in the administrative proceedings of the department and least informative in curricular and research areas. Correspondence includes letters of John W. Langley, Robert A. Millikan, Harrison Randall, James M. Cork, Ernest Lawrence, Walter Stevens, John O. Reed, Henry Carhart, Karl Guthe, Fred Hodges, Horace R. Crane, and others. Also includes correspondence of chairmen Daniel Sinclair, Richard H. Sands, and Lawrence W. Jones. Efforts to locate a superconducting super collider in Michigan in the 1980s are well documented in these records. The University of Michigan's participation in the large, multi-institutional high-energy physics experiment called L3 is a large part of the collection. Also includes photographs, slides, and a video tape from the L3 project.