Results of spirit leveling in New York, 1906 to 1911, inclusive [electronic resource] / R.B. Marshall ; work done in cooperation with the State of New York.
Publication Info.
[Washington, D.C.] : Department of the Interior, United States Geological Survey, 1912.
"Cooperation -- The State of New York contributed financially to the work during the years 1906 to 1911, inclusive, being represented by the Office of the State engineer and surveyor"--Page 5.