Conservation, Bände 3-4American Forestry Association, 1937 |
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Ergebnisse 1-3 von 71
Seite 29
... feet long , seven feet high , and was block- ing a stream flowing sixty - five sec- ond - feet of water . The storage ca- pacity behind the dam was 691,500 gallons or 2.11 acre - feet . Three months later it was found to have been ...
... feet long , seven feet high , and was block- ing a stream flowing sixty - five sec- ond - feet of water . The storage ca- pacity behind the dam was 691,500 gallons or 2.11 acre - feet . Three months later it was found to have been ...
Seite 7
... feet per second . Several months later , following the winter and spring rains , the river has increased its depth by twenty- three feet and the volume of flow is over 100,000 cubic feet per sec- ond . On the lower river beyond Muscle ...
... feet per second . Several months later , following the winter and spring rains , the river has increased its depth by twenty- three feet and the volume of flow is over 100,000 cubic feet per sec- ond . On the lower river beyond Muscle ...
Seite 41
... feet high on all trees that the entire canyon . My shack was located one mile above the mouth of the canyon in the narrowest part of the gorge , and about four feet above the creek , during normal flow . noon . I did not leave the cabin ...
... feet high on all trees that the entire canyon . My shack was located one mile above the mouth of the canyon in the narrowest part of the gorge , and about four feet above the creek , during normal flow . noon . I did not leave the cabin ...
Inhalt
MarchApril 1938 Number | 2 |
CONSERVATION | 3 |
Wild Animal Farms in Russia USSR ECONOMIC SURVEY | 9 |
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acres agencies agriculture American Forestry Association animals anthocyanin basin birds breeding camp canvasback cent cities Condensed cost crops dams deer Department destruction disease drainage drainage basin drought duck Dutch elm disease economic erosion estry farm farmers Federal feet field fire fish flood control grass grazing growth heath hen hunters hunting important inches increase industry interest irrigation Lake living logging ment miles million Missouri River mountain National Park natural resources Navajo North North Dakota OVID BUTLER Peat Moss pine Plains planning plant problem production protection range Reclamation recreation region River salmon sand season servation Service shooting Soil Conservation South species sportsmen square miles streams supply Survey tain things timber tion tional trees ture United Valley waterfowl watershed West wild wild turkeys wilderness wildlife winter wood