Results of spirit leveling in Iowa, 1896 to 1913, inclusive /
Marshall, R. B. 1867-1949
Results of spirit leveling in Iowa, 1896 to 1913, inclusive / R.B. Marshall, chief geographer. Work done in cooperation with the State of Iowa from 1907 to 1913, inclusive. - Washington, Govt. Print. Off., 1915. - 126 p. ill., 24 cm. - U.S. Geological survey. Bulletin 569 . - United States. Geological Survey. Bulletin ; 569. .
Includes index.
gs 15000462
Iowa--Altitudes.
QE75 / .B9 no. 569
Results of spirit leveling in Iowa, 1896 to 1913, inclusive / R.B. Marshall, chief geographer. Work done in cooperation with the State of Iowa from 1907 to 1913, inclusive. - Washington, Govt. Print. Off., 1915. - 126 p. ill., 24 cm. - U.S. Geological survey. Bulletin 569 . - United States. Geological Survey. Bulletin ; 569. .
Includes index.
gs 15000462
Iowa--Altitudes.
QE75 / .B9 no. 569