Our Digital Library contains 119 252 digital objects
Search for: [Title Variant = "Bulletin 640"]
Number of results: 12
Butler, Bert Sylvenus (1877-1960) Heikes, Victor Conrad(1867-1948) United States of America. Geological Survey.
Jones, Edward L. United States of America. Geological Survey.
Hewett, Donnell Foster (1881-?) United States of America. Geological Survey.
Calkins, Frank Cathcart United States of America. Geological Survey.
Jones, Edward L. United States of America. Geological Survey.
Ferguson, Henry Gardiner(1882-1966) United States of America. Geological Survey.
Lupton, Charles Thomas (1878-1935) Condit, Daniel Dale (1886-?) United States of America. Geological Survey.
Bastin, Edson Sunderland (1878-1953) United States of America. Geological Survey.
Ferguson, Henry Gardiner(1882-1966) United States of America. Geological Survey.
Knopf, Adolph (1882-1966) United States of America. Geological Survey.
Pardee, Joseph Thomas (1871-1960) United States of America. Geological Survey.
Knopf, Adolph (1882-1966) Stany Zjednoczone. Geological Survey
