Earth history field trip for high school science teachers
Subtitle: Stockton, Illinois, May 15, 1948
By: sponsored by State Geological Survey ; Gilbert O. Raasch, conference director ; Principal W.R. Holloway, conference host
Publisher: State Geological Survey
Published: 1948
Place of publication: [Champaign, Ill.]
Language: eng
Subjects: Geology
Other titles: High school science teachers earth history field trip,  Stockton, Illinois
Notes: Caption title.

"May 15, 1948."