...precise-level net of the United States. Some of the finally accepted elevations as printed herein therefore differ from those submitted as bench-mark numbers...same area at the same time as less liable to lead to confusion in identification of bench marks than any attempt at serial numbering, and because the bench-mark...

...to mean sea level through readjustment of the precise-level net of the United States. In some cases the finally accepted elevations as printed herein...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...

...the nearest foot above mean sen level, as determined by unadjusted levels in the field. In some cases the finally accepted elevations as printed herein...differ from those submitted as bench-mark numbers by several feet, resulting from the adjustments necessary to close circuits and to those resulting from...

...to mean sea level through readjustment of the precise-level net of the United States. In some cases the finally accepted elevations as printed herein...same area at the same time, as less liable to lead to confusion in identification of bench marks than any attempt at serial numbering, and becanse the bench...

...to mean sea level through readjustment of the precise-level net of the United States. In some cases the finally accepted elevations as printed herein...same area at the same time, as less liable to lead to confusion in identification of bench marks than any attempt at serial numbering, and becanse the bench...

...elevations to the nearest foot above mean sea level, as determined by unadjusted levels in the field. In some eases the finally accepted elevations as printed...differ from those submitted as bench-mark numbers by several feet, resulting from the adjustments necessary to close circuits and to those resulting from...

...the precisv-lF>% el net of the I'nilcd States. In some eases the finally accepted ele.v&tJotie •ys printed herein differ from those submitted as bench-mark numbers by 1 or 2 . .•'. ;"feeK -.This 'method of numbering bench marks has been adopted where many levclmen are ....

...to mean sea level through readjustment of the precise level net of the United States. In some cases the finally accepted 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...

...to mean sea level through readjustment of the precise level net of the United States. In some cases the finally accepted elevations as 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...

...to mean sea level through readjustment of the precise-level net of the United States. In some cases the finally accepted elevations as printed herein...same area at the same time, as less liable to lead to confusion in identification of bench marks than any attempt at serial numbering, and because the bench...