Pamphlets on Conservation of Natural Resources, Volumen6U.S. Government Printing Office, 1913 |
Dentro del libro
Resultados 1-5 de 79
Página 9
... character , so truly representative of the best spirit and the best endeavor of America , men and women unselfishly devoted to the practical altruism of conservation . At this particular time in Washington the pleasure is intensified ...
... character , so truly representative of the best spirit and the best endeavor of America , men and women unselfishly devoted to the practical altruism of conservation . At this particular time in Washington the pleasure is intensified ...
Página 12
... character of work deemed most effective in this case . The plan which has given good results and is in general use is that of standing committees or sections assigned to various subjects . The American Railway Engineering Association ...
... character of work deemed most effective in this case . The plan which has given good results and is in general use is that of standing committees or sections assigned to various subjects . The American Railway Engineering Association ...
Página 13
... character of the investigations undertaken . Several topics were suggested under each sub - committee subject , and the more important selected for this year's report . Practically all details of text and arrangements were left to the ...
... character of the investigations undertaken . Several topics were suggested under each sub - committee subject , and the more important selected for this year's report . Practically all details of text and arrangements were left to the ...
Página 16
... character and soundness of this chapter the following is quoted : " It follows that the maximum cut from the national forests should be assured , not during the existing period of stored and excessive virgin supply , or during the ...
... character and soundness of this chapter the following is quoted : " It follows that the maximum cut from the national forests should be assured , not during the existing period of stored and excessive virgin supply , or during the ...
Página 22
... Character of timber ; ( 4 ) Efficient man- agement ; ( 5 ) Proper equipment . The last two are reforms which are usually within the power of the lumberman to correct , but the first three and many other conditions are due to influences ...
... Character of timber ; ( 4 ) Efficient man- agement ; ( 5 ) Proper equipment . The last two are reforms which are usually within the power of the lumberman to correct , but the first three and many other conditions are due to influences ...
Términos y frases comunes
acres administration agricultural American Forestry Association amount annual average camp cent Chairman commercial companies conifers Conservation Congress consumer cooperation cost course Douglas fir effect eucalyptus favor Federal Government feet field fire protection fire wardens forest fires forest land forest law forest products forest protection forest schools Forest Service forest taxation Forestry Committee future grades growth hardwood important increase interest investment legislation logging lumber lumber industry lumbermen manufacturing meeting methods mill moisture mountains national forests operations Oregon organization patrol patrolmen planting possible practical precipitation present private forestry private owners problem profit property tax railroad ranger school reason reforestation region revenue sections secure silvicultural soil spark arresters species stumpage sub-committee supply timber land timber owners tion town trees utilization waste white pine woods yellow pine yield tax