 The original forests of the United States are estimated to have covered 822 million acres and to have contained 5,200 billion board feet of timber. Over two-thirds of this area has been culled, cut over, or burned. There are left to-day about 137 million...  Tariff Information, 1921 - Página 1060por United States. Congress. House. Committee on Ways and Means - 1921Vista completa - Acerca de este libro
 | 1919 - 582 páginas
...following brief summary is given except that portion relating to Pennsylvania which is in extenso. The original forests of the United States are estimated...board feet of timber. Over two-thirds of this area ha* been culled, cut-over, or burned. There are left today about 137 million acres of virgin timber,... | |
 | 1920 - 496 páginas
...to Department of Agriculture estimates, covered 822,000,000 acres and containedd 5,200,000,000,000 board feet of timber. Over twothirds of this area has been culled, cutover, or burned, and three-fifths of the timber originally in the United States gone. Our timber... | |
 | New York (State). Legislature - 1921 - 1052 páginas
...this the following extract is made, setting forth the conditions generally in the United States: " The original forests of the United States are estimated...timber. Over two-thirds of this area has been culled, cut-over, or burned. There are left to-day about 137 million acres of virgin timber, 112 million acres... | |
 | New York (State). Conservation Department - 1921 - 342 páginas
...this the following extract is made, setting forth the conditions generally in the United States: " The original forests of the United States are estimated...timber. Over two-thirds of this area has been culled, cut-over, or burned. There are left to-day about 137 million acres of virgin timber, 112 million acres... | |
 | United States. Congress. House. Committee on Ways and Means - 1921 - 864 páginas
...DEPLETION IN THE UNITED STATES. The forest resources of the United States — yesterday and to-rioy. — The original forests of the United States are estimated...have covered 822 million acres and to have contained 5.200 billion board feet of timber. Over two-thirds of this area has been culled, cut over, or burned.... | |
 | George Evan Roberts - 1921 - 56 páginas
...forests in the Eastern States and the Middle West, this situation has changed rapidly in recent years. The original forests of the United States are estimated to have covered 822,000,000 acres, and to have) contained) 5,200,000,000,000 board feet of timber. Over two thirds... | |
 | 1920 - 1202 páginas
...the original forests of the United Slates covered 822 mlillion acres. More than two-thirds of Ibis area has been culled, cut over or burned. There are left today, according to the most reliable estimates, aboat 463 million acres of forest and cut-over land of all... | |
 | Austin Faulks Macdonald - 1923 - 140 páginas
...rate that the country is now demanding every year more than four times the quantity of timber grown. The original forests of the United States are estimated to have covered eight hundred million acres, but two-thirds of this area has been culled, cut over, or burned.12 Fire... | |
 | 1921 - 544 páginas
...morbid and depressive picture. The conservation of our forests, therefore, becomes a subject of naThe original forests of the United States are estimated...have contained 5,200 billion board feet of timber. To-day the Department of Agriculture avers that three-fifths of our original timber supply is gone.... | |
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