The Technical World Magazine, Volume 11Technical World Company, 1909 |
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Page 6
... present lumber supply almost certain to be exhausted in less than fifty years . Already in many states some small precautions against forest fires have been taken . Strict laws have been passed to punish people who leave fires burning ...
... present lumber supply almost certain to be exhausted in less than fifty years . Already in many states some small precautions against forest fires have been taken . Strict laws have been passed to punish people who leave fires burning ...
Page 8
... present annual consumption of lumber in the United States is one hundred billion feet . That leaves 2000 billion feet of standing timber . 100 billion ft . annual con- 60 billion 40 sumption annual billion annual loss growth sixty ...
... present annual consumption of lumber in the United States is one hundred billion feet . That leaves 2000 billion feet of standing timber . 100 billion ft . annual con- 60 billion 40 sumption annual billion annual loss growth sixty ...
Page 9
... present conditions continue , the timber supply of the United States will be entirely ex- hausted when children born this year are thirty - three years old . But conditions will not remain the same . In the first place we use more ...
... present conditions continue , the timber supply of the United States will be entirely ex- hausted when children born this year are thirty - three years old . But conditions will not remain the same . In the first place we use more ...
Page 10
... present criminally careless methods , not more than 320 feet out of every thousand ever is put to a useful purpose - more than two - thirds of the forest crop is Lost in Logging 44 Lost in Seasoning Lost in the Saw Mill 1/2 3 and ...
... present criminally careless methods , not more than 320 feet out of every thousand ever is put to a useful purpose - more than two - thirds of the forest crop is Lost in Logging 44 Lost in Seasoning Lost in the Saw Mill 1/2 3 and ...
Page 15
... present one - quarter of all the standing timber in the country , covering an acreage three times the total area of the state of New York , is set apart in public forest reserves , where it is safe from the vandals ' axe and year after ...
... present one - quarter of all the standing timber in the country , covering an acreage three times the total area of the state of New York , is set apart in public forest reserves , where it is safe from the vandals ' axe and year after ...
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