Biennial report for 1913 and 1914
Subtitle: administrative report and economic and geological papers
Series: Illinois State Geological Survey. Bulletin -- no. 30
Published: 1917
Place of publication: Urbana
Language: eng
Number of pages: 161
Subjects: Geology
Notes: "Certain papers in cooperation with U.S. Geological Survey."

Director: Frank W. DeWolf.
Table of contents: title: Administrative report / F.W. DeWolf; title: Mineral resources of Illinois in 1913 and 1914 / Helen J. Skewes; title: Coal in Gillespie and Mount Olive quadrangles / Wallace Lee; title: Pennsylvanian fire clays of Illinois / Edwin H. Lines; title: Geology and economic resources of Colchester and Macomb quadrangels / Henry Hinds; title: Loess in the Canton quadrangle / T.E. Savage; title: Dictionary of altitudes.