Geophysical Abstracts 96-99, January-December 1939
Triangulation in Utah, 1871-1934
Spirit Leveling in Vermont, 1896-1935
The United States Geological Survey
... Spirit Leveling in Michigan, 1896-1938 [by] J.G. Staack, Chief Topographic Engineer
... Spirit Leveling in Utah, 1897-1938. J.G. Staack, Chief Topographic Engineer
Spirit Leveling in Missouri, 1896-1938/ J.G. Staack
... Transit Traverse in Missouri ... [By] J.G. Staack, Chief Topographic Engineer. Prepared in Cooperation with the State of Missouri Geological Survey and Water Resources ...
Geophysical Abstracts 96-99, January-December 1939
Spirit Leveling in Vermont, 1896-1935
Triangulation in Utah 1871-1934
Spirit Leveling in Connecticut, 1922-35
Mineral Resources of Alaska
Spirit Leveling in Missouri: (Ch. H). West-Central Missouri, 1896-1938
Spirit Leveling in Missouri: (Ch. B). South-Central Missouri, 1896-1937
Spirit Leveling in Connecticut, 1933-35
Mineral Resources of Alaska
Geophysical Abstracts 96-99
Spirit Leveling in Texas