 | Geology - 1906 - 1010 pages
...top of the post is riveted a bronze tablet similar to that described above. The numbers stamped ujxm the bench marks as described in the following lists...above mean sea level, as determined by unadjusted kvek in the field. They have been subjected to changes resulting from the adjustments ne«ssary to... | |
 | Geology - 1910 - 884 pages
...and their use has now been discontinued. The numbers stamped upon the bench marks described in these lists represent the elevations to the nearest foot...by unadjusted levels in the field. The notes have been subjected to changes resulting from the adjustments necessary to close circuits and to those resulting... | |
 | Geology - 1906 - 1190 pages
...bottom of a vertical hole, so that the top of the bolt was horizontal and thus formed the bench mark. The numbers stamped upon the bench marks as described...represent the elevations to the nearest foot above mean sen level, as determined by unadjusted levels in the field. In some cases the finally accepted elevations... | |
 | Illinois State Geological Survey - Geology - 1909
...with asphalt, and over the top of the post is riveted a bronze tablet similar to that described above. The numbers stamped upon the bench marks as described...level, as determined by unadjusted levels in the field. They have been subjected to changes resulting from the adjustments necessary to close circuits and... | |
 | Louis Marcus Prindle, Frank Lee Hess - Geology - 1906 - 202 pages
...bottom of a vertical hole, so that the top of the bolt was horizontal and thus formed the bench mark. The numbers stamped upon the bench marks as described...level, as determined by unadjusted levels in the field. In some eases the finally accepted elevations as printed herein differ from those submitted as bench-mark... | |
 | Geological Survey (U.S.) - Geology - 1906 - 72 pages
...with asphalt, and over the top of the post is riveted a bronze tablet similar to that described above. The numbers stamped upon the bench marks as described...level, as determined by unadjusted levels in the field. They have been subjected to changes resulting from the adjustments necessary to close circuits and... | |
 | Pennsylvania. Topographic and Geological Survey Commission - Pennsylvania - 1906 - 328 pages
...with asphalt, and over the top of the post is riveted a bronze tablet similar to that described above. The numbers stamped upon the bench marks as described...lists represent the elevations to the nearest foot abovcr mean sea level, as determined by unadjusted levels in the field. They have been subjected to... | |
 | Pennsylvania. Topographic and Geological Survey Commission - 1906 - 328 pages
...with asphalt, and over the top of the post is riveted a bronze tablet similar to that described above. The numbers stamped upon the bench marks as described...following lists represent the elevations to the nearest font above mean sea level, as determined by unadjusted levels in the field. They have been subjected... | |
 | Samuel Stinson Gannett, David Henry Baldwin - Pennsylvania - 1906 - 992 pages
...riveted a bronze tablet similar to that described above. The numbers stamped upon the bench marks'a* described in the following lists represent the elevations to the nearest foot above Bi£an'«ea JoVcl, as determined by unadjusted levels in the field. They have been tfttbJACtod tu vhanges... | |
 | Illinois State Geological Survey - Geology - 1907 - 302 pages
...with asphalt, and over the top of the post is riveted a bronze tablet similar to that described above. The numbers stamped upon the bench marks as described...level, as determined by unadjusted levels in the field. They have been subjected to changes resulting from adjustments necessary to close circuits and to those... | |
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They have been subjected to change resulting from the adjustments necessary to close circuits and to those resulting from reduction to mean sea level through readjustment of the precise-level net of the United States. 
