Department of the Interior. United States Geological Survey. Charles D. Walcott, Director. Results of spirit leveling in Pennsylvania for the years 1899 to 1905.

Department of the Interior. United States Geological Survey. George Otis Smith, Director. Bulletin 564. Results of spirit leveling in Oklahoma 1895 to 1912, inclusive.
Published: (1914)

Department of the Interior. United States Geological Survey. George Otis Smith, Director. Bulletin 565. Results of spirit leveling in Colorado 1896 to 1914, inclusive.
Published: (1915)

Department of the Interior. United States Geological Survey. George Otis Smith, Director. Bulletin 556. Results of spirit leveling in Oregon 1896 to 1913, inclusive.
Published: (1914)

Department of the Interior. United States Geological Survey. George Otis Smith, Director. Bulletin 568. Results of spirit leveling in Missouri 1896 to 1914, inclusive.
Published: (1915)

Department of the Interior. United States Geological Survey. George Otis Smith, Director. Bulletin 558. Results of spirit leveling in Wyoming 1896 to 1912, inclusive.
Published: (1914)

Department of the Interior. United States Geological Survey. George Otis Smith, Director. Bulletin 560. Results of spirit leveling in Minnesota 1897 to 1914. Inclusive.
Published: (1915)

Department of the Interior. United States Geological Survey. George Otis Smith, Director. Bulletin 569. Results of spirit leveling in Iowa 1896 to 1913, inclusive.
Published: (1915)

[Geological Survey bulletin 421; Results of spirit leveling in Illinois, 1896-1908].
Published: (1910)

Department of the Interior. United States Geological Survey. George Otis Smith, Director. Bulletin 514. Results of spirit leveling in New York 1906 to 1911, inclusive.
Published: (1912)

Department of the Interior. United States Geological Survey. George Otis Smith, Director. Bulletin 557. Results of spirit leveling in the State of Washington 1896 to 1913, inclusive.
Published: (1914)

Department of the Interior. United States Geological Survey. George Otis Smith, Director. Bulletin 554. Results of spirit leveling in Kentucky 1898 to 1913, inclusive.
Published: (1914)

Department of the Interior. United States Geological Survey. George Otis Smith, Director. Bulletin 553. Results of spirit leveling in Illinois 1911 to 1913, inclusive.
Published: (1914)

Spirit leveling in New York. 1896-1905 and 1912-1916.
Published: (1918)

Results of spirit leveling in Pennsylvania for the years 1899 to 1905 inclusive /
by: Gannett, Samuel S. (Samuel Stinson), 1861-1939, et al.
Published: (1906)

Department of the Interior. United States Geological Survey. George Otis Smith, Director. Bulletin 561. Results of spirit leveling in Hawaii 1910 to 1913, inclusive.
Published: (1914)

Department of the Interior. United States Geological Survey. George Otis Smith, Director. Bulletin 555. Results of spirit leveling in Indiana 1897 to 1911, inclusive.
Published: (1913)

Department of the Interior. United States Geological Survey. George Otis Smith, Director. Bulletin 562. Results of spirit leveling in Virginia 1900 to 1913, inclusive.
Published: (1914)

Results of spirit leveling in California 1907 to 1910, inclusive.
Published: (1911)

Results of spirit leveling in Montana 1896 to 1910, inclusive.
Published: (1911)

Results of spirit leveling. Fiscal year 1900-'01.
Published: (1901)

Results of spirit leveling in Colorado 1896 to 1910, inclusive.
Published: (1911)

Results of spirit leveling in Texas 1896 to 1910, inclusive.
Published: (1911)

Bulletin 493. Results of spirit leveling in Illinois 1909 and 1910.
Published: (1911)

Department of the Interior. United States Geological Survey. Charles D. Walcott, Director. Rock cleavage.
Published: (1904)

Department of the Interior. United States Geological Survey. Charles D. Walcott, Director. Taconic Physiography.
Published: (1904)

Results of spirit leveling in Arizona 1899 to 1909, inclusive.
Published: (1911)

Department of the Interior. United States Geological Survey. Charles D. Walcott, Director. Contributions to economic geology 1903.

Department of the Interior. United States Geological Survey. Charles D. Walcott, Director. A gazetteer of Delaware.
Published: (1904)

Department of the Interior. United States Geological Survey. Charles D. Walcott, Director. A gazetteer of Maryland.
Published: (1904)

Department of the Interior. United States Geological Survey. Charles D. Walcott, Director. A gazetteer of Virginia.
Published: (1904)

Department of the Interior. United States Geological Survey. Charles D. Walcott, Director. Geographic tables and formulas.
Published: (1904)

Department of the Interior. United States Geological Survey. Charles D. Walcott, Director. The drumlins of southeastern Wisconsin.
Published: (1905)

Department of the Interior. United States Geological Survey. Charles D. Walcott, Director. A gazetteer of Texas.

Department of the Interior. United States Geological Survey. Charles D, Walcott, Director. Economic geology of the Independence quadrangle, Kansas.
Published: (1906)

Department of the Interior. United States Geological Survey. Charles D. Walcott, Director. Economic geology of the Iola Quadrangle, Kansas.
Published: (1904)

Department of the Interior. United States Geological Survey. Charles D. Walcott, Director. The Passaic flood of 1903.
Published: (1903)