Includes announcements (1967-) relating to the Astronomy Dept. and the Vermilion River Observatory; research publications (1964-) of the Astronomy Dept.; reprints (1965-1966) of the Vermilion River Observatory; and preprints (1982- ) of reports of research by Astronomy Department faculty and graduate students concerning stars, planetary bodies, interstellar molecules and gases, galaxies, radio astronomy and astrophysics. Also includes a history of "The Astronomical Observatory of the University of Illinois" by Michael T. Svec, describing the development of astronomy; construction of observatories; purchase and development of telescopes, photometers and related equipment; faculty research of George W. Myers, Joel Stebbins, Jakob Kunz, Robert H. Baker, George C. McVittie and others; and the nomination and listing of the observatory on the National Register of Historic Sites (1986) and Astronomy and Astrophysics, A National Historic Landmark Theme Study (Department of the Interior, National Park Service, Washington, DC, 1989), of which the University of Illinois Section was based on Michael Svec's work.