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第 175 頁
The Forest policy of the United States is of public interest for two principal reasons : First , it guarantees the perpetuation of forest resources having a capitalized value of $ 2,014,000,000 ; and second , it furnishes an object ...
The Forest policy of the United States is of public interest for two principal reasons : First , it guarantees the perpetuation of forest resources having a capitalized value of $ 2,014,000,000 ; and second , it furnishes an object ...
第 176 頁
A leading branch of the dendrological studies is the making of an arcurate forest map of the dis . tribution of tree species in the United States , to show the extent , composition , and economic possi . bilities of our forest resources ...
A leading branch of the dendrological studies is the making of an arcurate forest map of the dis . tribution of tree species in the United States , to show the extent , composition , and economic possi . bilities of our forest resources ...
第 177 頁
Patrol , to guard agaiust theft of timber ana especially against fire , is maintained under the superintendent of Forests , who is the executive othcer of the forest , fish and game commission . The planting of young trees ou opeu ...
Patrol , to guard agaiust theft of timber ana especially against fire , is maintained under the superintendent of Forests , who is the executive othcer of the forest , fish and game commission . The planting of young trees ou opeu ...
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