TY  - BOOK
AU  - Marshall,R.B.
TI  - Spirit leveling in Ohio,: 1898 to 1916, inclusive,
T2  - U.S. Geological Survey. Bulletin 651
AV  - QE75 .B9 no. 651
PY  - 1917///
CY  - Washington
PB  - Govt. print. off.
KW  - Ohio
KW  - Altitudes
N1  - At head of title: Department of Interior
ER  -