 | Geology - 1906 - 1190 pages
...net of the United States. This method of numbering bench marks has been adopted where many levelers are working in the same area at the same time, as...at the same time gives an approximate statement of elevation. It is assumed that engineers and others finding these bench marks so stamped in the field... | |
 | Geology - 1906 - 1010 pages
...numbers by 1 or 2 feet. This method of numbering bench marks has lx>en adopted where many levelnien aiv working in the same area at the same time, as less liable to lead to coufsuion in identifier lion of Ix-ncli marks than any attempt at serial numbering, and l>ecausc the... | |
 | Louis Marcus Prindle, Frank Lee Hess - Geology - 1906 - 202 pages
...net of the United States. This method of numbering bench marks has been adopted where many levelers are working in the same area at the same time, as...at the same time gives an approximate statement of elevation. lt is assumed that engineers and others finding these bench marks so stamped in the field... | |
 | Geological Survey (U.S.) - Geology - 1906 - 124 pages
...net of the United States. This method of numbering bench marks has been adopted where many levelers are working in the same area at the same time, as...at the same time gives an approximate statement of elevation. It is assumed that engineers and others finding these bench marks so stamped in the field... | |
 | Illinois State Geological Survey - Geology - 1909
...elevations as printed herein differ from those submitted as bench mark numbers bv one or two feet. This method of numbering bench marks has been adopted where...than any attempt at serial numbering, and because the bench mark number at the same time gives an approximate statement of the elevation. It is assumed that... | |
 | Pennsylvania. Topographic and Geological Survey Commission - Pennsylvania - 1906 - 328 pages
...elevations as printed herein differ from those submitted as bench-mark numbers by 1 or 2 feet. This method of numbering bench marks has been adopted where...bench marks than any attempt at serial numbering, and becanse the bench mark number at the same time gives an approximate statement of the elevation. It... | |
 | Pennsylvania. Topographic and Geological Survey Commission - 1906 - 328 pages
...elevations as printed herein differ from those submitted as bench-mark numbers by 1 or 2 feet. This method of numbering bench marks has been adopted where...bench marks than any attempt at serial numbering, and becanse the bench mark number at the same time gives an approximate statement of the elevation. It... | |
 | Geological Survey (U.S.) - Geology - 1906 - 72 pages
...elevations as printed herein differ from those submitted as bench-mark numbers by 1 or 2 feet. This method of numbering bench marks has been adopted where...same area at the same time, as less liable to lead to confsuion in identifieation of bench marks than any attempt at serial numbering, and beeause the bench-mark... | |
 | Samuel Stinson Gannett, David Henry Baldwin - Pennsylvania - 1906 - 992 pages
...1 or 2 . .•'. ;"feeK -.This 'method of numbering bench marks has been adopted where many levclmen are . ' '!• '. "working in the same area at the same time, as less liable to lead to confsuion in identifica• tion of bench marks than any attempt at serial numbering, and Ixscause the... | |
 | Illinois State Geological Survey - Geology - 1907 - 302 pages
...printed herein differ from those submitted as bench mark numbers by one or two feet. This method [BULL. 4 of numbering bench marks has been adopted where many...confusion in identification of bench marks than any attempts at serial numbering, and because the bench mark number at the same time gives an approximate... | |
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... number at the same time gives an approximate statement of the elevation. It is assumed that engineers and others finding these bench marks so stamped in the field will communicate with the Director of the United States... 
