Author
Gannett, Henry, 1846-1914
3
Baker, Marcus, 1849-1903
2
Gannett, Henry, 1846-1914,
2
Geological Survey (U.S.),
2
Adams, George I. 1870-1932
1
Clarke, Frank Wigglesworth, 1847-1931
1
Dale, T. Nelson 1845-1937
1
Emmons, Samuel Franklin, 1841-1911
1
Gray, Glenn A. 1884-
1
Kemp, James Furman, 1859-1926
1
Knowlton, Frank Hall, 1860-1926
1
Stokes, H. N. 1859-1942
1
Vaughan, Thomas Wayland, 1870-1952
1
Weeks, Fred Boughton, 1864-1942
1
Williams, Henry Shaler, 1847-1918
1
Wilson, Herbert M. 1860-1920
1