[030-075] The Preglacial Rock River Valley as a Source of Groundwater for Rockford*
The Preglacial Rock River Valley as a Source of Groundwater for Rockford* Author: Workman, L.E.
[030-074] Preliminary Study of Lake Michigan Sediments at Evanston Illinois
Preliminary Study of Lake Michigan Sediments at Evanston Illinois Author: Todd, Jean P.
[030-073] Geology ad Groundwater Resources of the Bedrock at Rockford
Geology ad Groundwater Resources of the Bedrock at Rockford Author: Payne, J. Norman
[030-072] Identification Key for Illinois Plant Fossils
Identification Key for Illinois Plant Fossils Authors: Noe, A.C. and Janssen, R.E.
[030-071] Pre-Cambrian Rocks of Central Colorado: Their Correlation by Means of Heavy Mineral Analyses
Pre-Cambrian Rocks of Central Colorado: Their Correlation by Means of Heavy Mineral Analyses Author: Jahns, Richard H.
[030-070] Exhumed Ordovician Hill Near Joliet
Exhumed Ordovician Hill Near Joliet Author: Fisher, D. Jerome
[030-069] Engineering Aspects of the Geology of the Vienna City Reservoir*
Engineering Aspects of the Geology of the Vienna City Reservoir* Author: Eckblaw, George E.
[030-068] The Recent Impetus to Oil Prospecting in Illinois*
The Recent Impetus to Oil Prospecting in Illinois* Author: Cobee, George V.
[030-067] A Study of the Stratigraphy sea dot Preglacial Topography of the DeKalb and Sycamore Quadrangles
A Study of the Stratigraphy sea dot Preglacial Topography of the DeKalb and Sycamore Quadrangles Author: Caldwell, L.T.
[030-066] The Physiography and Surficial Geology of the Carlinville Quadrangle, Illinois*
The Physiography and Surficial Geology of the Carlinville Quadrangle, Illinois* Author, Ball, John R.