Notes
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- Callicott . ‘Animal Liberation’ . 332 op. cit.,
- Bean , Michael J. 1977 . The Evolution of National Wildlife Law , 8 – 10 . Washington, D.C. : U.S. Government Printing Office .
- Goetzmann , William H. 1966 . Exploration and Empire: The Explorer and the Scientist in the Winning of the American West , New York : Alfred A. Knopf .
- Bartlett , Richard A. 1974 . The New Country: A Social History of the American Frontier, 1776–1890 , London/ Oxford/New York : Oxford University Press .
- Bartram , William . 1955 . Travels of William Bartram, , Edited by: VanDoren , Mark . 22 New York : Dover Publications .
- Goetzmann . Exploration and Empire , 17 – 19 . op. cit.,
- Russell , Osborne . 1955 . Journal of a Trapper, , Edited by: Haines , Aubrey L. 63 Lincoln : University of Nebraska Press . reprinted 1965),
- Bradbury , John . 1966 . Travels in the Interior of America , March of America Facsimile Series 35 Ann Arbor : University Microfilms .
- James , Edwin . 1905 . “ ‘James’ Account of S. H. Long's Expedition, 1819–20’ ” . In Early Western Travels, 1748–1864, , Edited by: Thwaites , Reuben G. 22 vols. , 14 20 Cleveland : Arthur H. Clark Co. .
- James . ‘Account’ . Early Western Travels, , 15 256 – 7 . op. cit.,
- Catlin , George . Letters and Notes on the Manners, Customs, and Conditions of the North American Indians , 2 vols , 262 New York : Dover Publications . 1
- Maximilian, Prince of Wied . Travels in the Interior of North America, in Early Western Travels , 22 379 op. cit.,
- Townsend , John K. ‘Narrative of a Journey across the Rocky Mountains to the Columbia River’ . Early Western Travels , 21 170 op. cit.,
- Raynolds , William F. 1868 . ‘Report on the Exploration of the Yellowstone and the Country Drained by that River’ . Senate Executive Document , : 11 40th Cong., 2nd sess.
- Townsend . ‘Narrative’ . Early Western Travels, , 21 178 op. cit.,
- U.S. 1871–72 . Statutes at Large , 17 : 32 – 33 . ch. 24,
- U.S., Congress, Senate . 1872 . Congressional Globe, , 30 January : 697 42nd Cong., 2d sess., 1
- U.S. 1893–94 . Statutes at Large , 28 : 73 ch. 72,
- Chittenden , Hiram Martin . 1964 . The Yellowstone National Park, , Edited by: Bartlett , Richard A. 121 – 5 . Norman : University of Oklahoma Press .
- Haines , Aubrey L. 1977 . The Yellowstone Story , 2 54 – 64 . Yellowstone : Yellowstone Library and Museum Association and Colorado Associated University Press .
- Flader's , Susan L. 1974 . Thinking Like a Mountain: Aldo Leopold and the Evolution of an Ecological Attitude Toward Deer, Wolves, and Forests , Columbia, Mo : University of Missouri Press .
- Hugo and van Lawick‐Goodall , Jane . 1970 . Innocent Killers , 17 – 18 . New York : Ballantine Books .
- Myers , Norman . 1979 . The Sinking Ark , 46 Oxford : Pergamon Press .
- Ehrenfeld , David . 1978 . The Arrogance of Humanism , 207 – 9 . New York : Oxford University Press .
- Paul and Ehrlich , Anne . 1981 . Extinction , 48 New York : Random House .
- Leopold , Aldo . 1949 . “ ‘The Land Ethic’ ” . In A Sand County Almanac , 204 New York : Oxford University Press .
- 1983 . A Wealth of Wild Species: Storehouse for Human Welfare , Boulder, Colo. : Westview Press .
- Bartlett , Richard A. 1979 . ‘Self‐Consciousness and the Rights of Nonhuman Animals and Nature’ . Environmental Ethics , 1 : 2 99 – 129 .
- Norton , Bryan G. 1982 . ‘Environmental Ethics and Nonhuman Rights’ . Environmental Ethics , 4 ( 2 ) : 17 – 36 .
- Eugene , C. C. 1979 . ‘The Historical Foundations of American Environmental Attitudes’ . Environmental Ethics , 1 ( 3 ) : 209 – 40 .
- Gould , Stephen Jay . 1965 . ‘Is Uniformitarianism Necessary?’ . American Journal of Science , 263 ( 3 ) : 223 – 8 .
- Gillispie , Charles Coulston . 1959 . Genesis and Geology , 226 New York : Harper & Row .
- 1970 . Mountaineering in the Sierra Nevada , Lincoln : University of Nebraska Press .
- Eisely , Loren . 1961 . Darwin's Century , 5 – 10 . Garden City, N.Y. : Anchor Books .
- . Proceedings of the American Association for the Advancement of Science, Tenth Meeting . New York. pp. 239 G. P. Putnam .
- 1856 . California Farmer , 7 November : 1
- Birch , Charles and Cobb , John Jr. 1981 . The Liberation of Life , 205 Cambridge : Cambridge University Press .
- Attfield , Robin . 1983 . The Ethics of Environmental Concern , 150 – 1 . 156 – 60 . New York : Columbia University Press .
- Callicott , J. Baird . 1984 . ‘Non‐Anthropocentric Value Theory and Environmental Ethics’ . American Philosophical Quarterly , 21 ( 4 ) : 299 – 309 .
- Norton , Bryan G. 1984 . ‘Environmental Ethics and Weak Anthropocentrism’ . Environmental Ethics , 6 ( 2 ) : 131 – 48 .
- Hill , Thomas E. Jr. 1983 . ‘Ideals of Human Excellence and Preserving Natural Environments’ . Environmental Ethics , 5 ( 3 ) : 211 – 24 .
- Callicott , J. Baird . 1986 . “ ‘Moral Considerability and Extraterrestrial Life’ ” . In Beyond Spaceship Earth: Environmental Ethics and the Solar System, , Edited by: Hargrove , Eugene C. 246 – 53 . San Francisco : Sierra Club Books .
- 1979 . ‘The Historical Foundations of American Environmental Attitudes’ . Environmental Ethics , 1 ( 3 ) : 209 – 40 .
- 1980 . ‘Anglo‐American Land Use Attitudes’ . Environmental Ethics , 2 ( 2 ) : 121 – 48 .