Biennial report for 1911 and 1912
Subtitle: administrative report and economic and geological papers
Series: Illinois State Geological Survey. Bulletin -- no. 23; Bulletin (Illinois State Geological Survey) -- no. 23.
Published: 1917
Place of publication: Urbana
Language: eng
Number of pages: 160
Subjects: Geology
Notes: "Certain reports in cooperation with U.S. Geological Survey."
Table of contents: title: Administrative report by F.W. DeWolf.; title: Mineral statistics for Illinois in 1911 and 1912, by Helen J. Skewes.; title: Oil and gas in Colchester and Macomb Quadrangles, by Henry Hinds.; title: Plymouth oil field, by Raymond S. Blatchley.; title: Geology of La Salle and Hennepin Quadrangles, by G.H. Cady.; title: Stratigraphy and paleontology of the Alexandrian series in Illinois and Missouri, by T.E. Savage.