University of Illinois Urbana-Champaign

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Showing 1201–1230 of 2,940 items
Thumbnail for The classification of coal
The classification of coal
Parr, Samuel Wilson

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 Limestone resources of Illinois
Limestone resources of Illinois
Krey, Frank; Lamar, J.E.

Thumbnail for Precipitation Augmentation for Crops Experiment: Phase II, Exploratory Research, Year 1
Precipitation Augmentation for Crops Experiment: Phase II, Exploratory Research, Year 1
Changnon, Stanley A., Jr.; Brunkow, David A.; Czys, Robert R.; Durgunoğlu, Ali; Garcia, Philip K.; Hollinger, Steven E.; Huff, Floyd A.; Ochs, Harry T.; Scott, Robert W.; Westcott, Nancy E.

Thumbnail for Hail Suppression and Society: summary of technology assessment of hail suppression
Hail Suppression and Society: summary of technology assessment of hail suppression
Farhar, Barbara C.; Changnon, Stanley A., Jr.; Swanson, Earl R.; Davis, Ray J.; Haas, J. Eugene