Frases de Aldo Leopold

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"The Home Builder Conserves" [1928]; Published in The River of the Mother of God and Other Essays by Aldo Leopold, Susan L. Flader and J. Baird Callicott (eds.) 1991, p. 147.
1920s

"Wherefore Wildlife Ecology?" [1947]; Published in The River of the Mother of God and Other Essays by Aldo Leopold, Susan L. Flader and J. Baird Callicott (eds.) 1991, p. 337.
1940s

Lecture notes ms. (c. 1935); as quoted in: Curt D. Meine, ‎Richard L. Knight (1999) The Essential Aldo Leopold: Quotations and Commentaries. p. 162.
1930s

Fuente: A Sand County Almanac, 1949, "The Land Ethic", p. 210.

radio talk http://digicoll.library.wisc.edu/cgi-bin/AldoLeopold/AldoLeopold-idx?type=turn&id=AldoLeopold.ALYale&entity=AldoLeopold.ALYale.p0535&isize=XL "Feed Early to Keep Game at Home", 2 November 1933.
1930s

“February: Good Oak”, p. 15-16.
A Sand County Almanac, 1949, "January Thaw", "February: Good Oak" & "March: The Geese Return"

“Wisconsin: Flambeau”, p. 115.
A Sand County Almanac, 1949, "Wisconsin: Marshland Elegy," "Wisconsin: The Sand Counties" "Wisconsin: On a Monument to the Pigeon," and "Wisconsin: Flambeau"

Fuente: A Sand County Almanac, 1949, "The Land Ethic", p. 207.

“April: Sky Dance”, p. 34.
A Sand County Almanac, 1949, "April: Come High Water," "April: Draba," "April: Bur Oak," & "April:Sky Dance"

“October: Smoky Gold”, p. 55.
A Sand County Almanac, 1949, "August: The Green Pasture," "September: The Choral Copse," "October: Smoky Gold," and "October: Red Lanterns"

“October: Red Lanterns”, p. 63.
A Sand County Almanac, 1949, "August: The Green Pasture," "September: The Choral Copse," "October: Smoky Gold," and "October: Red Lanterns"

Fuente: A Sand County Almanac, 1949, "Wildlife in American Culture", p. 178.

"Conservation" (c. 1938); Published in Round River, Luna B. Leopold (ed.), Oxford University Press, 1966, p. 157.
1930s

Fuente: A Sand County Almanac, 1949, Foreword, p. vii.

Fuente: A Sand County Almanac, 1949, "The Land Ethic", p. 203.

"Natural History: The Forgotten Science" [1938]; Published in Round River, Luna B. Leopold (ed.), Oxford University Press, 1966, p. 63-64.
1930s

"The Farmer as a Conservationist" [1939]; Published in The River of the Mother of God and Other Essays by Aldo Leopold, Susan L. Flader and J. Baird Callicott (eds.) 1991, p. 263.
1930s

Fuente: A Sand County Almanac, 1949, "Conservation Esthetic", p. 174.

“January: January Thaw”, p. 4.
A Sand County Almanac, 1949, "January Thaw", "February: Good Oak" & "March: The Geese Return"

Fuente: A Sand County Almanac, 1949, "The Land Ethic", p. 210.

"Wilderness as a Form of Land Use" [1925]; Published in The River of the Mother of God and Other Essays by Aldo Leopold, Susan L. Flader and J. Baird Callicott (eds.) 1991, p. 137-138.
1920s

"The Farmer as a Conservationist" [1939]; Published in The River of the Mother of God and Other Essays by Aldo Leopold, Susan L. Flader and J. Baird Callicott (eds.) 1991, p. 259.
1930s

“Wisconsin: The Sand Counties”, p. 102.
A Sand County Almanac, 1949, "Wisconsin: Marshland Elegy," "Wisconsin: The Sand Counties" "Wisconsin: On a Monument to the Pigeon," and "Wisconsin: Flambeau"

“November: A Mighty Fortress”, p. 77.
A Sand County Almanac, 1949, "November: Axe-in-Hand," "November: A Mighty Fortress," and "December: Pines above the Snow"

Fuente: A Sand County Almanac, 1949, "Wilderness", p. 199.

Fuente: A Sand County Almanac, 1949, "The Land Ethic", p. 205.

“April: Come High Water”, p. 25.
A Sand County Almanac, 1949, "April: Come High Water," "April: Draba," "April: Bur Oak," & "April:Sky Dance"

Fuente: A Sand County Almanac, 1949, "Conservation Esthetic", p. 174.

"A Plea for Wilderness Hunting Grounds" [1925]; Published in Aldo Leopold's Southwest, David E. Brown and Neil B. Carmony (eds.) 1990 , p. 160.
1920s