Earth history field trip for high school science teachers
Subtitle: Jacksonville, Illinois, October 22, 1949
By: sponsored by State Geological Survey
Publisher: State of Illinois, Dept. of Registration and Education, State Geological Survey Division
Published: 1949
Place of publication: Champaign, Ill
Language: eng
Number of pages: 12
Subjects: Geology
Other titles: Jacksoville, Illinois.
Notes: Caption title.

Gilbert O. Raasch, Conference director; Principal John Agger, Conference host.