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Authorizing the printing as a Senate document of field notebooks prepared by Herbert C. Hoover in connection with the Geological atlas of the United States, folio 31, Pyramid Peak Folio California : report (to accompany S. Res. 114)
- "Authorizing the printing as a Senate document of field notebooks prepared by Herbert C. Hoover in connection with the Geological atlas of the United States, folio 31, Pyramid Peak Folio California : report (to accompany S. Res. 114)"@en