Author
U.S. Coast and Geodetic Survey
5
American Philosophical Society
4
Burroughs, John, 1837-1921
4
Feynman, Richard P. 1918-1988
4
Muir, John, 1838-1914
4
Audubon, John James, 1785-1851
3
Elliott, Clark A.
3
Geological Society of America
3
Geological Survey (U.S.)
3
Mathematical Association of America
3
National Audubon Society
3
National Wildlife Federation
3
Reid, Constance
3
Rhodes, Richard, 1937-
3
Roger Tory Peterson Institute
3
Alfred P. Sloan Foundation
2
Bailey, Martha J.
2
Bell, Whitfield J., Jr., 1914-2009
2
Bird, Stephanie J.
2
Bonta, Marcia, 1940-
2
Borror, Donald J. 1907-1988
2
Carson, Rachel, 1907-1964
2
Chapman, Frank M. 1864-1945
2
Cohen, I. Bernard, 1914-2003
2
Dawson, Elmer Yale, 1918-1966
2
Dyson, Freeman J.
2
Gore, Al, 1948-
2
Hoffleit, Dorrit
2
Kaston, B. J. 1906-1985
2
Keller, Evelyn Fox, 1936-
2
Leighton, Ralph
2
Leopold, Aldo, 1886-1948
2
Meine, Curt
2
Nasar, Sylvia
2
New-York Historical Society
2
PBS Home Video
2
Peterson, Roger Tory, 1908-1996
2
Rieber, R. W.
2
Rigden, John S.
2
Teale, Edwin Way, 1899-1980
2
White, Richard E.
2
Yager, Robert Eugene, 1930-
2
Abbott, Isabella Aiona
1
Abercromby, James, 1707-1775
1
Adler, Helmut E.
1
Agassiz, Louis, 1807-1873
1
Ajzenberg-Selove, Fay, 1926-
1
Allen, Garland E.
1
Allison, Amy, 1956-
1
Alvarez, Luis W., 1911-1988
1
more ...