 | Augustus Jesse Bowie - 1878 - 108 strani
...found to serve fully as well as the blocks, and are claimed to be cheaper. It must, however, be stated that they are more costly to handle, as longer time is required to clean up and repave the sluices when they are used. In some sections of the State longitudinal riffles are preferred, ie, riffles made... | |
 | American Institute of Mining, Metallurgical, and Petroleum Engineers, American Institute of Mining Engineers - 1879 - 688 strani
...found to serve fully as well, as the blocks, and are claimed to be cheaper. It must, however, be stated that they are more costly to handle, as longer time is required to clean up and repave the sluices when they are used. In some sections of the State longitudinal riffles are preferred, ie, riffles made... | |
 | California. Legislature - 1883 - 497 strani
...found to serve fully as well as the blocks, and are claimed to be cheaper. It must, however, be stated that they are more costly to handle, as longer time is required to clean up and repave the sluices when they are used. In some sections of the State longitudinal riffles, are preferred, ie, riffles... | |
 | Augustus Jesse Bowie - 1885 - 364 strani
...Smartsville they have been found to serve fully as well as blocks, and are claimed to be cheaper. It must be stated, however, that they are more costly to handle,...about $10 per box (14 feet long and 5 feet wide). of the blocks, and has given excellent results. The blockand-rock riffles are not desirable for those... | |
 | Augustus Jesse Bowie (Jr) - 1885 - 352 strani
...Smartsville they have been found to serve fully as well as blocks, and are claimed to be cheaper. It must be stated, however, that they are more costly to handle,...Sweetland, Nevada County, costs about $10 per box (14feet long and 5 feet wide). Blocks and Rocks. — A system of riffles consisting of a row of blocks... | |
 | 1882 - 532 strani
...found to serve fully as well as the blocks, and are claimed to be eheaper. It must, however, be stated that they are more costly to handle, as longer time is required to clean up and repave the sluices when they are used. In some sections of the State longitudinal riffles are preferred, te, riffles made... | |
 | California, California. Legislature - 1883 - 994 strani
...found to serve fully as well as the blocks, and are claimed to be cheaper. It must, however, be stated that they are more costly to handle, as longer time is required to clean up and repave the sluices when they are used, in some sections of the State longitudinal riffles are preferred, \. e., riffles... | |
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... is washed these are considered preferable on account of their cheapness. At Smartsville they have been found to serve fully as well as the blocks, and are claimed to be cheaper. It must, however, be stated that they are more costly to handle, as longer... 