Results of spirit leveling in Maryland, 1896 to 1911, inclusive /
Marshall, R. B. 1867-1949.
Results of spirit leveling in Maryland, 1896 to 1911, inclusive / R.B. Marshall, chief geographer; work done in cooperation with the State through the Maryland Geolgical Survey, William Bullock Clark, state geologist. - Washington, Govt. Print. Off., 1914. - 80 p. : pl. ; 24 cm. - U.S. Geological survey. Bulletin 563 . - United States. Geological Survey. Bulletin ; 563. .
Includes index.
gs 15000233
Maryland--Altitudes.
QE75 / .B9 no. 563
Results of spirit leveling in Maryland, 1896 to 1911, inclusive / R.B. Marshall, chief geographer; work done in cooperation with the State through the Maryland Geolgical Survey, William Bullock Clark, state geologist. - Washington, Govt. Print. Off., 1914. - 80 p. : pl. ; 24 cm. - U.S. Geological survey. Bulletin 563 . - United States. Geological Survey. Bulletin ; 563. .
Includes index.
gs 15000233
Maryland--Altitudes.
QE75 / .B9 no. 563