Pamphlets on Conservation of Natural Resources, Volumen18U.S. Government Printing Office, 1909 |
Dentro del libro
Resultados 1-5 de 100
Página 242
... carry so much silt into the reservoir that it can no longer hold much water . Silt - filled channels can be dredged ... carried by a stream is to reduce its erosive power by protecting the channel with jetties or other obstruc- tions or ...
... carry so much silt into the reservoir that it can no longer hold much water . Silt - filled channels can be dredged ... carried by a stream is to reduce its erosive power by protecting the channel with jetties or other obstruc- tions or ...
Página 281
... carried on by the Joint Council on Economic Education through a grant from Resources for the Future , Inc. The initial phase of the CRUE Project , begun in 1955 , was focused upon cooperative efforts with selected school systems in ...
... carried on by the Joint Council on Economic Education through a grant from Resources for the Future , Inc. The initial phase of the CRUE Project , begun in 1955 , was focused upon cooperative efforts with selected school systems in ...
Página 287
... carried a step further and a choice made between a local interest and national policy . On an even larger scale , one may on occasion have to weigh the results of a nationalistic policy against international repercussions . To use other ...
... carried a step further and a choice made between a local interest and national policy . On an even larger scale , one may on occasion have to weigh the results of a nationalistic policy against international repercussions . To use other ...
Página 312
... carrying with it all of the con- notations of quanity and quality , as well as fullness . The issue is how can this best be achieved -- and not public or private ownership : How can its purposes best be carried out under the ...
... carrying with it all of the con- notations of quanity and quality , as well as fullness . The issue is how can this best be achieved -- and not public or private ownership : How can its purposes best be carried out under the ...
Página 325
... carried on , with whatever modification and expansion that may appear desirable , by whatever world organization takes the place of the Inter- national Institute of Agriculture . International collaboration has a wide field in a program ...
... carried on , with whatever modification and expansion that may appear desirable , by whatever world organization takes the place of the Inter- national Institute of Agriculture . International collaboration has a wide field in a program ...
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Términos y frases comunes
acres agencies Agriculture annual areas bill boys Bureau CAGNEY camp Chairman Civilian Conservation Corps Commission committee Congress conservation movement Construction cooperation coordination cost Council delinquency Department Douglas-fir economic enrollees existing facilities Federal Government fire Forest Fire forest land FOREST PROTECTION Forest Service forestry Gifford Pinchot Governor habitat important improvements increase industry Insect and Disease interest Interior January 26 juvenile Kalamazoo River labor legislation Maintenance Management and administration ment miles million acres mineral national forests national-forest natural resources organization parks percent plans planting population present President problems production proposed recommendations recreation Reforestation regional resource development Resource Management Resources and Conservation responsibility river roads and trails Senator CLARK Senator Humphrey SENATOR MURRAY Senator RANDOLPH Silviculture statement streams surveys Theodore Roosevelt Timber purchasers tion U.S. Senate United utilization Washington watershed welfare wildlife young Youth Conservation Corps