Notes on a core bit for cable tools
By: by Gail F. Moulton
Contributors: Illinois State Geological Survey
Series: Illinois petroleum -- no. 2
Publisher: State Geological Survey
Published: 1926
Place of publication: Urbana, [Ill.]
Language: eng
Subjects: Bits (Drilling and boring); Core drilling; Petroleum
Other titles: Prospecting for Hoing sand oil pools.; Recent petroleum developments in Illinois.
Notes: Caption title.

Includes: Prospecting for Hoing sand oil pools, and also, Recent petroleum developments in Illinois.