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1
Results of spirit leveling in Pennsylvania 1899 to 1911, inclusive. R.B. Marshall, Chief Geographer. Work done in cooperation with the state. [U.S. Geological Survey Bulletin 515.]
Published 1912“…Serial set 6234…”
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2
Results of spirit leveling in Florida 1911. R.B. Marshall, Chief Geographer. [Bulletin 516.]
Published 1912“…Serial set 6234…”
Online Access
Government Document Electronic eBook -
3
Results of spirit leveling in Alabama, 1911. R.B. Marshall, Chief Geographer. Work done in cooperation with State of Alabama through the Geological Survey of Alabama, Eugene A. Smi...
Published 1912“…Serial set 6234…”
Online Access
Government Document Electronic eBook -
4
Results of spirit leveling in Ohio 1911. [Bulletin 518]
Published 1912“…Serial set 6234…”
Online Access
Government Document Electronic eBook -
5
Results of spirit leveling in Tennessee, 1910 and 1911. R.B. Marshall, Chief Geographer. Part of work done in cooperation with State of Tennessee through the Tennessee State Geolog...
Published 1912“…Serial set 6234…”
Online Access
Government Document Electronic eBook