Contributions

  • Oltman, Roy E. - Contributor
  • Geological Survey (U.S.) - Contributor

Publication

1948 - U.S. Department of the Interior, Geological Survey, Washington, District of Columbia

Language

English

Word Count

2,750 words, Guess

Page Count

11 pages

Identifiers

Subjects

Series Statement

  • Circular - Geological Survey -- 37,
  • Geological Survey circular -- 37.

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