Results of spirit leveling in Virginia, 1900 to 1913, inclusive /
Marshall, R. B. 1867-1949.
Results of spirit leveling in Virginia, 1900 to 1913, inclusive / R.B. Marshall, chief geographer; part of work since 1907 done in cooperation with the state of Virginia through Virginia Geological Survey, T.L. Watson, state geologist. - Washington, Govt. Print. Off., 1914. - 68 p. : pl. ; 24 cm. - U.S. Geological survey. Bulletin 562 . - United States. Geological Survey. Bulletin ; 562. .
Includes index.
gs 14000855
Virginia--Altitudes.
QE75 / .B9 no. 562
Results of spirit leveling in Virginia, 1900 to 1913, inclusive / R.B. Marshall, chief geographer; part of work since 1907 done in cooperation with the state of Virginia through Virginia Geological Survey, T.L. Watson, state geologist. - Washington, Govt. Print. Off., 1914. - 68 p. : pl. ; 24 cm. - U.S. Geological survey. Bulletin 562 . - United States. Geological Survey. Bulletin ; 562. .
Includes index.
gs 14000855
Virginia--Altitudes.
QE75 / .B9 no. 562