TY  - BOOK
AU  - Gannett,Samuel S.
AU  - Baldwin,David Henry
TI  - Results of spirit leveling in Pennsylvania for the years 1899 to 1905 inclusive
T2  - U.S. Geological survey. Bulletin
AV  - QE75 .B9 no. 288
PY  - 1906///
CY  - Washington
PB  - Govt. Print. Off.
KW  - Pennsylvania
KW  - Altitudes
N1  - Subject series: F, Geography, 50; Issued also as House doc. no. 836, 59th Cong., 1st sess; Includes index
ER  -