 Estimates of this kind are almost inevitably misleading. For example, it is certain that the rate of consumption of timber will increase enormously in the future, as it has in the past, so long as supplies remain to draw upon. Exact knowledge of many...  Queensland Agricultural Journal - Página 1921908Vista completa - Acerca de este libro
 | 1907 - 1014 páginas
...the larger estimate of the annual growth, 40 billion feet, and apply the present rate of consumption, the result shows a probable duration of our supplies...timber will increase enormously in the future, as it has in the past, so long as supplies remain to draw upon. Exact knowledge of many other factors is... | |
 | Leopold G. Blackmam - 1908 - 436 páginas
...Pinchot, chief of the United States Forest Service, in an article published in The Outlook for October 12, 1907, makes the following statement : After enumerating...timber will increase enormously in the future, as it has in the past, so long as supplies remain to draw upon. Exact knowledge of many other factors is... | |
 | United States. Congress. House. Committee on Ways and Means - 1908 - 804 páginas
...larger estimate of the annual growth, 40,000.000,000 feet, and apply the present rate of consumption, the result shows a probable duration of our supplies of timber of not more than thirty-three years. The figures cited are, however, sufficiently reliable to make it certain that the United States has... | |
 | United States. Congress. House. Committee on Ways and Means - 1909 - 468 páginas
...larger estimate of the annual growth, 40.0OO,000,000 feet, and apply the present rate of consumption, the result shows a probable duration of our supplies of timber of not more than thirty-three years. The figures cited are, however, sufficiently reliable to make It certain that the United States has... | |
 | United States. Congress. House. Committee on Ways and Means - 1909 - 1380 páginas
...larger estimate of the annual growth, 40,000,000,000 feet, and apply the present rate of consumption, the result shows a probable duration of our supplies of timber of not more than thirty-three years. The figures cited are, however, sufficiently reliable to make It certain that the United States has... | |
 | United States. Congress. House. Committee on Ways and Means - 1909 - 1394 páginas
...growth, 40,000,000,000 feet, and apply the present rate of consumption, the result shows a provable duration of our supplies of timber of not more than thirty-three years. The figure* cited are, however, sufficiently reliable to make It certain that the United States baa... | |
 | Gifford Pinchot - 1910 - 172 páginas
...the larger estimate of the annual growth, 40 billion feet, and apply the present rate of consumption, the result shows a probable duration of our supplies of timber of little more than a single generation. Estimates of this kind are almost inevitably misleading. For... | |
 | 1909 - 134 páginas
...the larger estimate of the annual growth, 40 billion feet, and apply the present rate of consumption, the result shows a probable duration of our supplies...timber will increase enormously in the future, as it has in the past, so long as supplies remain to draw upon. Exact knowledge of many other factors is... | |
 | James Rudolph Garfield - 1911 - 444 páginas
...larger estimate of the annual growth, forty billion feet, and apply the present rate of consumption, the result shows a probable duration of our supplies...timber will increase enormously in the future, as it has in the past, as long as supplies remain to draw upon. Exact knowledge of many other factors is... | |
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