Illinois fluorspar /

Includes bibliographical references (p. 34-36).

Earth history field trip for high school science teachers : Vienna, Illinois, November 5, 1949 /

Gilbert O. Raasch, Conference director; Principal B.W. Hunsaker, Conference host.

Conservation school guide leaflet: Fairgrounds, Springfield, Illinois : Springfield area, Sangamon Co. : Springfield Quadrangle.

"Leader: George M. Wilson.

Pennsylvanian spores of Illinois and their use in correlation / by Robert M. Kosanke.

"Manuscript completed in August 1948."

Illinois natural resources : an industrial developmental asset /

Cover title.

Municipal parks and playgrounds in Illinois. August, 1939.

Mode of access: Internet.

George Rogers Clark and the revolution in Illinois, 1763-1787; a sesquicentennial memorial,

Mode of access: Internet.

Bulletin - Illinois Natural History Survey.

Chemical abstracts

Municipal water supplies of Illinois,

Illinois. University. Bulletin, v. 5, no. 7.

Story of Illinois series.

Mode of access: Internet.

Geological Survey of Illinois,

Vol. 8 edited by Josua Lindahl, state geologist.

Archives of Maryland.

Editors: 1883-1912, W. H. Browne; 1913-15, C. C. Hall; 1916- B. C. Steiner.

Southern Illinois novaculite and novaculite gravel for making silica refractories /

Includes bibliographical references.

Report of Illinois Good Roads Commission to the forty-fourth General Assembly.

Mode of access: Internet.

Biennial report of the managing officer of the Jacksonville State Hospital, ...

No. 1-8 reprinted in one volume in 1863.