Biennial report for 1911 and 1912;
administrative report and economic and geological papers.

Description

Corporate Author

Illinois State Geological Survey.

Language(s)

English

Published

Urbana, 1917.

Subjects

Geology > Geology / Illinois.

Note

"Certain reports in cooperation with U.S. Geological Survey."

Physical Description

160 [20] p. illus.

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