University of Illinois Urbana-Champaign

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Showing 6091–6120 of 39,505 items
Thumbnail for An investigation of twist drills
An investigation of twist drills
Benedict, Bruce Willet; Hershey, Albert Eby; Lukens, William Penn

Thumbnail for Bedrock geology of Murphysboro Quadrangle, Jackson County, Illinois
Bedrock geology of Murphysboro Quadrangle, Jackson County, Illinois
Jacobson, Russell J.; Denny, F. Brett; Griffith, Gary W.

Thumbnail for The mineral content of Illinois waters
The mineral content of Illinois waters
Bartow, Edward; Parr, Samuel Wilson; Palmer, George Thomas; Udden, Johan August

Thumbnail for Calhoun County soils / 53
Calhoun County soils / 53
Smith, Raymond Stratton