Author
Geological Survey (U.S.)
5
Geological Survey (U.S.),
4
Russell, Israel C. 1852-1906
3
Hietanen, Anna Martta, 1909-
2
Mann, Gary M.
2
Mullins, William H., 1946-
2
Schuler, Carol Ann, 1946-
2
Vallier, Tracy L. 1936-
2
Ashley, Harrison Everett, 1876-1910
1
Brooks, Howard C.
1
Brooks, Howard C.,
1
Calkins, Frank C., 1878-1974
1
Calvert, William R.
1
Campbell, Marius R. 1858-1940
1
Capps, Stephen R. 1881-1949
1
Chamberlin, Rollin T. 1881-1948
1
Darton, Nelson Horatio, 1865-1948
1
Diller, J. S. 1850-1928
1
Gannett, Henry, 1846-1914
1
Gannett, Samuel S. 1861-1939
1
Griswold, W. T., 1859-1931
1
Kuntz, Mel A.
1
Lee, Willis T. 1864-1926
1
Personius, Stephen F.
1
Rinella, Frank A.
1
Rinella, Frank A.,
1
Russell, Israel C. 1852-1906,
1
Snee, Lawrence W.
1
Warman, Philip Creveling, 1859-1908
1
White, David, 1862-1935
1
Wilson, Herbert M. 1860-1920
1
Wright, Charles L.
1