The inflammability of Illinois coal dusts.

Mode of access: Internet.

Institutional issues in application of IVHS technologies to CVO in Illinois. Final report.

Illinois State Department of Transportation, Springfield

Highway operation problems of senior drivers in Illinois. Final report.

Illinois State Department of Transportation, Springfield

A strategy for reducing wet-pavement accidents in Illinois. Interim report.

Mode of access: Internet.

Geological survey of Illinois.

A.H. Worthen, director.

Earth history field trip for high school science teachers : Jacksonville, Illinois, October 22, 1949 /

Gilbert O. Raasch, Conference director; Principal John Agger, Conference host.

Oil investigations in Illinois in 1916, under direction of Fred H. Kay.

"Work in cooperation with U.S. Geological Survey."

Oil and gas development and possibilities in east-central Illinois. (Clark, Coles, Douglas, Edgar and parts of adjoining counties)

At head of title: State of Illinois. Department of registration and education. Division of the state geological survey.

Rock Island-Moline area : Rock Island County, guide leaflet for Illinois Academy of Science /

"May 6, 1950."

High-extraction coal mining in Illinois : effects on crop production, 1985-1987 /

"IMSRP-IV."

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.