Author
États-Unis. Army. Corps of engineers
2
Baird, Spencer Fullerton (1823-1887)
1
Brooks, Alfred H. (1871-1924)
1
Conrad, Timothy Abbot (1803-1887)
1
Emory, William H. (1811-1887)
1
Englemann, George (1809-1884)
1
Etats-Unis. Department of the Interior
1
Geological Survey (États-Unis)
1
Girard, Charles Frederic (1822-1895)
1
Hall, James (1811-1898)
1
Ives, J. C.
1
Ludlow, William (1843-1901)
1
Newberry, J. S. (1822-1892)
1
Parry, Charles Christopher (1823-1890)
1
Schott, Arthur (1814-1875)
1
Schrader, Frank C. ( 1860-1944)
1
Torrey, John (1796-1873)
1