University of Illinois Urbana-Champaign

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Showing 31–60 of 6,973 items
Thumbnail for State Water Survey Division
State Water Survey Division
Buswell, Arthur M.

Thumbnail for Typical rocks and minerals in Illinois
Typical rocks and minerals in Illinois
Ekblaw, George E.; Carroll, Don L.

Thumbnail for The environment of Camp Grant
The environment of Camp Grant
Salisbury, Rollin D.; Barrows, Harlan H.

Thumbnail for The Illinois State geological survey in war mineral research
The Illinois State geological survey in war mineral research
Illinois State Geological Survey; Leighton, Morris M.

Thumbnail for Index to Bulletins I-XVI
Index to Bulletins I-XVI
Illinois State Water Survey