University of Illinois Urbana-Champaign

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Showing 3991–4020 of 7,330 items
Thumbnail for Agro-ecology / 14
Agro-ecology / 14
Submitter: Howard Ding

Thumbnail for Illinois Research. [vol.1-vol.5]
Illinois Research. [vol.1-vol.5]
Submitter: Howard Ding

Thumbnail for Oil investigations in 1917 and 1918
Oil investigations in 1917 and 1918
Illinois State Geological Survey; Barrett, Nellie Okla; Nebel, Merle Louis; Coryell, Horace Noble; Tough, Fred H.; Williston, Samuel H.; Savage, Thomas Edmund

Thumbnail for Yields of deep sandstone wells in Northern Illinois
Yields of deep sandstone wells in Northern Illinois
Walton, William Clarence; Csallany, Sandor

Thumbnail for Manganese in water supplies
Manganese in water supplies
Corson, Harry Peach