Field notes : Wyoming, 1898, 1924, 1926, 1928-1929, and undated, includes extract of a letter, Eliot Blackwelder to Charles D. Walcott, March 1, 1926, notes by Charles Elmer Resser and L. J. Moraces; ...
1898-1940
1898-1940
Smithsonian Institution Archives
Smithsonian Field Book Project