Author
Bain, Harry Foster, 1872-1948
2
Fenneman, Nevin Melancthon, 1865-1945
2
Fuller, Myron L.
2
Martin, G. C. 1875-1943
2
Prindle, L. M. 1865-1956
2
Clapp, Frederick G. 1879-1944
1
Clarke, Frank Wigglesworth, 1847-1931
1
Cragin, Francis Whittemore, 1858-1937
1
Dale, T. Nelson 1845-1937
1
Darton, Nelson Horatio, 1865-1948
1
Fernald, R. H. 1871-1937
1
Gale, Hoyt S. 1876-1952
1
Geological Survey (U.S.)
1
Hillebrand, W. F. 1853-1925
1
Lindgren, Waldemar, 1860-1939
1
Marshall, R. B. 1867-1949
1
Mendenhall, Walter C. 1871-1957
1
Moffit, Fred H. 1874-1958?
1
Purington, Chester Wells, 1871-
1
Russell, Israel C. 1852-1906
1
Schaller, Waldemar T. 1882-1967
1
Schrader, Frank C. 1860-1944
1
United States
1
United States,
1
Wilson, Herbert M. 1860-1920
1