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

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

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."

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.

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

"Manuscript completed in August 1948."

Energy crisis : conference transcript ; the regional conference /

"June 1974"

Report.

"Catalogue of the Library of the Illinois State Museum of Natural History": Report for 1909/10, pt. II (p. 52-445.).

Publications.

Mode of access: Internet.

Report of statistician.

Report year ends June 30.

Annual report of the Illinois Farmers' Institute.

Contains "Proceedings of the -23rd annual meeting ..., together with reports of Institute work ..."

Story of Illinois series.

Mode of access: Internet.

Geological Survey of Illinois,

Vol. 8 edited by Josua Lindahl, state geologist.

Public aid in Illinois.

Title from caption.

Illinois school problems : report of the School Problems Commission.

Description based on: No. 3 (Mar. 1955); title from cover.

Southern Illinois novaculite and novaculite gravel for making silica refractories /

Includes bibliographical references.