 All water-courses on the line of the ditch should be secured ; their supply partially counteracts the loss by evaporation, leakage, and absorption, and frequently furnishes an additional quantum of water during several months of the year. (5) At proper...  A Practical Treatise on Hydraulic Mining in California - Stran 136avtor: Augustus Jesse Bowie (Jr.) - 1885 - 307 straniCelotni ogled - O knjigi
 | Augustus Jesse Bowie - 1878 - 108 strani
...additional quantum of water during several months of the year. 5. Waste-gates, at proper intervals, should be arranged so as to discharge the water, when necessary, without risk of damage to the ditch. 6. Ditches, when practicable and the cost not excessive, should always be preferred to flumes. Among... | |
 | California. Legislature - 1883 - 497 strani
...additional quantum of water during several months of the year. 5. Waste-gates, at proper intervals, should be arranged so as to discharge the water, when necessary, without risk of damage to the ditch. 6. Ditches, when practicable and the cost not excessive, should always be preferred to flumes. Amongst... | |
 | Harold James, Marla Stone - 1885 - 342 strani
...635,884 50,049= 7 per cent. 361,877 84,347 = 19 " 1883! 2 vears ...... i.H2.m7 007.761 i/u.to6=ii oer cent. CHAPTER X. DITCHES AND FLUMES. DITCHES. The...excessive, should be preferred to flumes. Surveying a Ditch lane— In the preliminary examination for the location of a long ditch, by means of careful comparative... | |
 | Augustus Jesse Bowie (Jr) - 1885 - 352 strani
...the ditch, especially in snow regions, located so as to have a southern exposure. 136 DITCHES. nishes an additional quantum of water during several months...preliminary examination for the location of a long ditch, bv means of careful comparative observations made with good aneroid barometers, the elevations not... | |
 | Augustus Jesse Bowie - 1885 - 364 strani
...(5) At proper intervals waste-gates should be arranged so as to discharge the water, when nscessary, without risk of damage to the ditch. In regions of...excessive, should be preferred to flumes. Surveying a Ditch Line.—In the preliminary examination for the location of a long ditch, by means of careful comparative... | |
 | 1899 - 696 strani
...counteracts the loss by evaporation, leakage, and absorption, and frequently furnishes an additional quantity of water during several months of the year. 5. At...provided at intervals not greater than onehalf a mile. 0. Ditches, when practicable and the cost not excessive, should be preferred to flumes. DITCHES. 113.... | |
 | 1905 - 1028 strani
...Treatise on Hydraulic Mining in California, 1886, p. 136. At proper intervals waste gates should IK; arranged, so as to discharge the water when necessary...ditch. In regions of heavy snow these wasteways should l>e provided at intervals not greater than one-half mile. * * * Ditches poorly built in the beginning... | |
 | 1903 - 658 strani
...counteracts the loss by evaporation, leakage, and absorption, and frequently furnishes an additional quantity of water during several months of the year. 5. At...mile. 6. Ditches, when practicable and the cost not excessive, should be preferred to flumes. DITCHES. 113. Surveying a Ditch Line. — A preliminary examination... | |
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