Forest and WaterPost Publishing Company, 1900 - 250 Seiten |
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acre-feet acres Angeles basin brush burned canyon capacity capillary action cent chaparral climate cones covered crops damage danger denuded desert destroyed detritus discharge districts drainage basin dykes especially evaporation exigency patrol feet flood flow foliage forest destruction forest fires forest lands forest reserves forest system forest trees forestry furrows gauge gravel ground humus inches increase interest irrigation less Los Angeles river Lytle creek method miles miner's inch moisture mountain forest mountain water-sheds orchard ounces pasturage pasture percolation pipes planting pounds present productive public forests public lands Queen Creek rain rainfall range ration reservoir river run-off San Bernardino San Gabriel sand Santa season sheep Sierra Madre Sierra Nevada Sierra Nevada forest soil Southern California springs and streams spruce square miles sub-irrigation sugar pine surface timber tion torrent action trout valley wash water supply watershed wood Yosemite
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Seite 187 - And every plant of the field before it was in the earth, and every herb of the field before it grew: for the LORD God had not caused it to rain upon the earth, and there was not a man to till the ground. 6 But there went up a mist from the earth, and watered the whole face of the ground.
Seite 170 - Seek him that maketh the seven stars and Orion, And turneth the shadow of death into the morning, And maketh the day dark with night; That calleth for the waters of the sea And poureth them out upon the face of the earth, (The Lord is his name), That strengtheneth the spoiled against the strong, So that the spoiled shall come against the fortress.
Seite 228 - For the purpose of investigating the extent to which the arid region of the United States can be redeemed by irrigation, and the segregation of the irrigable lands in such arid region, and for the selection of sites for reservoirs and other hydraulic works necessary for the storage and utilization of water for irrigation and the prevention of floods and overflows...
Seite 122 - From experiments performed while living on an exclusive diet of bread, fresh meat, and butter, with coffee and water for drink, we have found that the entire quantity of food required during twenty-four hours by a man in full health and taking free exercise in the open air is as follows: • Meat, 16 oz., or 1.03 Ib.
Seite 230 - This stream discharges only in violent freshets, recurring usually as great flood-waves which subside almost as soon as they arise. The area of the drainage basin is 143 square miles, of which 61 per cent, is above an elevation of 3,000 feet. The rainfall is estimated to be about 15 inches. The maximum flood discharge of Queen Creek in 1896 was 9,000 cubic feet per second, and the mean...
Seite 232 - The hasin of Cedar Creek lies on the western slope of the Cascade Mountains. It is heavily timbered and. in addition, the ground is covered with a very heavy growth of ferns and moss. The precipitation for the year 1897 was about 93 inches in the lower portion of the basin. and is estimated to have been as great as 150 inches on the mountain summits. The rainfall of the Qneen Creek hasin is estimated to be about 15 inches.
Seite 119 - ... comes to our aid, viz. : that property of the "average" in virtue of which, from a large number of specific cases, every one inaccurate in different directions, an idea may be deduced which is very near, indeed, to accuracy. I proceed to give the amounts of food necessary to sustain in health and strength an adult male for twenty-four hours, as determined theoretically and (by experience) practically by different parties. TABLE I. Amount of Pood required per Man, per Day, as Determined in Actual...
Seite 177 - The rain is conducted by a tube into a galvanized iron cylinder underneath, and when this is full it overflows into a second cylinder, and so on into a third and fourth, and finally into an iron tank. Each of the four cylinders holds rain corresponding to J an inch of depth, and the tank an amount equal to 2 inches.
Seite 189 - We are at present compelled to use the arbitrary and often puzzling term of acre foot or inch, second foot, weir inch and miner's inch. An acre foot of water is the amount of water that will cover an acre of ground one foot in depth. A second foot is a cubic foot of water per second. A miner's inch of water is the amount of water that will flow through an inch square hole in an inch board under a pressure of four inches in twenty-four hours; such an amount of water has been determined legally to...
Seite 232 - ... only three Photo 205, Falling leaves. thousand six hundred cubic feet for the former, while the maximum for the latter was nine thousand cubic feet per second. The mean discharge for Queen Creek was fifteen cubic feet per second and for Cedar Creek one thousand and eighty-nine cubic feet per second. These two streams represent extreme types. The radical difference in their character is largely due to forest cover.