Conservation of Natural Resources ...1909 - 98 páginas |
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Conservation of Natural Resources ... California. Department of Public Instruction Vista completa - 1909 |
Conservation of Natural Resources California. Department of Public Instruction Vista de fragmentos - 1913 |
Términos y frases comunes
acres agriculture American ANDREW CARNEGIE annual average burn California carried cent century citizen civilization Conference of Governors CONSERVATION OF NATURAL cost crops cubic feet demand destroyed destruction earth Emerson Hough erosion exhaustion facts farm fertile fire floods foresight forestry forests fuel resources future gone Government Governors grow half hardwood heritage hill hundred hymn Ichthyosaurus industry interests irrigation JOHN HAYS HAMMOND labor laws little drops living look lumber means millions minerals mines Mississippi mountains nation National Conservation Commission natural gas natural resources never patriotic pine pleasant land population practically present preservation President prosperity pulp reckless Reforestation regions rich rivers Saurus family Sequoia Sequoia National Park soil splendid square miles streams supply surface teacher things thought thousand timber tion to-day tons Uncle Sam United vast washed waste water power wealth West wise wood
Pasajes populares
Página 34 - Little drops of water, Little grains of sand Make the mighty ocean, And the pleasant land.
Página 4 - All who have meditated on the art of governing mankind have been convinced that the fate of empires depends on the education of children.
Página 52 - A nation deprived of liberty may win it, a nation divided may reunite, but a nation whose natural resources are destroyed must inevitably pay the penalty of poverty, degradation, and decay.
Página 11 - The conservation of our natural resources and their proper use constitute the fundamental problem which underlies almost every other problem of our National life.
Página 82 - Yes, we are all there, — from the Atlantic to the Pacific, from the Lakes to the Gulf...
Página 32 - ... be exhausted ultimately; and wastefulness in dealing with it to-day means that our descendants will feel the exhaustion a generation or two before they otherwise would. But there are certain other forms of waste which could be entirely...
Página 49 - When the forest is gone, the great reservoir of moisture stored up in its vegetable mould is evaporated, and returns only in deluges of rain to wash away the parched dust into which that mould has been converted.
Página 87 - What is there left for the next 50 years? Excluding arid and irrigable areas, the latter limited by nature, and barely enough of which could be made habitable in each year to furnish a farm for each immigrant family, the case stands as follows: In 1906 the total unappropriated public lands in the United States consisted of 792,000,000 acres. Of this area the divisions of Alaska, Arizona, California, Colorado, Idaho, Montana, Nevada, New Mexico and Wyoming contained 195,700,000 acres of surveyed and...
Página 49 - There are parts of Asia Minor, of Northern Africa, of Greece, and even of Alpine Europe, where the operation of causes set in action by man has brought the face of the earth to a desolation almost as complete as that of the moon; and though, within that brief space of time which we call "the historical period," they are known to have been covered with luxuriant woods, verdant pastures, and fertile meadows, they are now too far deteriorated to be reclaimable by man, nor can they become again fitted...
Página 86 - Union at the close of the Civil War. If we fail to consider what we possess of wealth available for the uses of mankind, and to what extent we are wasting a national patrimony that can never be restored, we might be likened to the directors of a company who never examine a balance sheet. The sum of resources is simple and fixed. From the sea, the mine, the forest and the soil must be gathered everything that can sustain the life of man. Upon the wealth that these supply must be conditioned forever,...