A Connection By Precise Leveling Between the Atlantic And Pacific Oceans
A Connection By Precise Leveling Between the Atlantic And Pacific Oceans
John Fillmore Hayford
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ON October 4, 1904, a Coast and Geodetic Survey party, running eastward from Seattle, Wash. , met a similar party, running westward, at Hunts Junction, in the southeastern part of Washington. The party running from east to west had started in the beginning of the season from a bench mark of which the eleva- tion had been fixed by a long line run during several seasons and extending westward from the precise level net, composed of many cir- cuits, which covers the eastern half of the United Stat...es. As far west as Norfolk, Nebr. , the elevations in this net had been checked by completed circuits of precise leveling of the highest grade of accuracy. The joining of the two lines at Hunts Junction completed the first connection by precise leveling be- tween the Atlantic and the Pacific. The discrepancy developed at the junction was . 615 ft. (=187. 5 millimeters), the Pacific being apparently higher than the Gulf of Mexico and Atlantic. The old question at once arises: is the Pacific at a different elevation from the At- lantic?
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