Includes: General Records, 1807, 1832-1965 (265 lin. ft.): Treasury Department records relating to the Coast Survey: Narrative report of an 1806 survey of the North Carolina Coast from Cape Fear to Cape Hatteras by William Tatham, 1807. Letters sent, 1843-1873, and received, 1832-1859, 1861-1964, by the Secretary of the Treasury relating to the Coast Survey. Letters, referrals, and reports from the Superintendent of the Survey to the Appointment Division, Treasury Department, relating to personnel matters, 1860-1901. Records of the Office of the Superintendent (1816-1920) and the Office of the Director (1920-1970): Correspondence of Superintendent Alexander Bache, 1844-1865. Letters, reports, sketches, manuscripts, maps, and other records received or produced by the Office of the Superintendent (Superintendent's File), 1866-1910. General correspondence, 1911-1931. Land survey correspondence, 1848-1854. Record copies of correspondence, 1848-1862. Miscellaneous subject file, 1917-1950. Correspondence register, 1860-1967. Register of letters received, 1890-1902, with index, 1890-1994. Instructions to Coast Survey and CGS personnel, 1855-1857, 1868-1892. Records relating to New York Harbor, 1855-1859; Boston Harbor and Cape Cod Ship Canal, 1859-1861; Mobile Harbor, 1860; and the defenses of Philadelphia, 1863-1864. Confidential memoirs on the coast of the Confederate States of America, Delaware Bay to Mississippi Sound (Notes on the Coast of the United States), 1861. Records of surveys in insular possessions, 1900-1906. Records relating to solar eclipses (May 26, 1854, July 18, 1860, and December 22, 1870), 1854, 1860, 1870-1871. Manuscript copies of publications on magnetism by Superintendent Bache, 1859-1864. Superintendent Bache's reference file entitled Miscellaneous Scientific and Business Papers, 1844-1849. Statistical compilations, 1857-1863. Annual office reports, 1926-1940. Monthly reports and journals, 1868-1875, 1881-1940. Monthly office reports, 1891-1940, including those of the Division of Charts, 1937-1938. Compilation of laws, Civil Service rules, and departmental decisions affecting CGS, 1903. Records relating to the Taft Commission, 1909-1911. Minutes and proceedings of the Board on the Reorganization of the Coast Survey, 1843. Records relating to the reorganization of Coast and Geodetic Survey, 1917-1954 (bulk 1932-1943). Policy and program planning files, 1924-1945. Annual reports, 1852-1956. Publications relating to maps and charts, 1902-1965. Maps and Charts (2,110 items): Separated from annual reports, 1851-1931 (2,100 items). Nautical charts and notes on the coast of Georgia by Superintendent Bache, 1861-1962 (10 items). Records of Central Office Organizations, 1818-1965 (328 lin. ft.): Records of the Office of the Assistant in Charge (1843-1898), Office of the Assistant Superintendent (1899-1919), and Office of the Assistant Director (1920-1965): Letters sent, 1850-1908. Letters received, 1845-1908. General correspondence, 1909-1914. Records relating to employees of the office, 1844-1902. Reports received from the Computing Division, 1869-1886. Correspondence of Assistant Superintendent Robert L. Faris, 1915-1932 (bulk 1915). Records of the Division of Accounts (formerly Office of the Disbursing Agent): Letters sent, 1851-1857, and received, 1847-1865, by Disbursing Agent Samuel Hein. Letters sent, 1873-1877, 1881-1882. Letters received, 1879-1881, 1885-1897. Disbursing records, 1881-1887. records of employees, 1818-1911. Personnel and payroll records, 1844-1906. Apppropriation ledger, 1893-1917. Allotment and expenditure ledgers, 1910-1918. Records of the Inspector of Hydrography: Letters sent, 1854-1861, 1867, 1885-1886, 1888. Letters received, 1863-1989, with gaps. Register of chart corrections, 1882-1910. Records of the Division of Hydrography and Topography: Letters sent, 1901-1910. Letters received, 1899-1919, with registers, 1895-1903. General correspondence, 1910-1925. Registers of logbooks of CTGS vessels, 1841-1917. Records of Computing Division (1844-1915): Computing Division's Geodetic Reports, 1851-1911. Letters received by the Inspector of Geodetic Work and Chief of the Division of Computing, 1909-1914. Monthly and annual reports of the Computing Division, 1898-1912. Records of the investigation relating to: Formulae of the Figure of the Earth, 1909 (with appendixes, 1903-1909). Logs of astronomical azimuths, latitudes, and longitudes, 1844-1913. Register of astronomical longitudes, 1847-1919. Register of gravity determinations, 1891-1914. Field party project instructions, 1922-1948. Correspondence of Walter D. Lambert, chief of the Gravity and Astronomy Sections, 1930-1949. Records of the Charts Division: Letters sent by the Engraving Division, 1885-1890. Ledgers and other records relating to the cost of preparing and altering plates from which charts were printed, 1844-1904. Records relating to corrections and additions to engraved plates, 1877-1904. Project Reports of the Aeronautical Charts Branch, 1941-1946. Maps and charts (61,540 items): Manuscript nautical charts from original surveys of U.S. coastal waters, with indexes, 1837-1940 (4,6000 items). Published nautical charts tracings, 1888-1911 (300 items). Manuscript topographic maps of U.S. coasts from original surveys, 1837-1940 (8,500 items). Lithographed topographic maps of U. S. coasts, 1927-1963 (1,600 items). Published aeronautical charts of the United States, including revised editions, 1926-1965 (27,500 items). Sample printing techniques, 1936 (40 items). Records of the Tidal Division: Letters send, 1851-1867, 1887-1912. Letters received, 1849-1966. Copies of referred correspondence, 1856-1889. Personnel records, 1898-1925. Miscellaneous tidal notes and observations, 1845-1883. Other records: Letters received by the Assistant in Charge of State Surveys, 1886-1890. Records of the Terrestrial Magnetism Division, consisting of field notes of division chief Robert L. Faris, 1890-1905; and Notes on Magnetic Work, 1912. Noninstrumental earthquake reports, compiled by the Geophysics Division, 1912-1935 (in Denver). Letters sent by the Planning Board, 1931-1957. Engineering plans (3,100 items); Instruments and equipment, compiled by the Instruments Division, 1922-1961. Records of the Library and Archives Section of the Technical Services Division, 1817-1962 (3,367 lin. ft.): Administrative records: Registers and other records documenting the branch's receipt of scientific records, 1832-1906. Accession register for 1816-1867 period records, 1930. Registers of receipt of topographic sheets, 1834-1900, and hydrographic charts, 1836-1901. Scientific records: Partial geographic and subject indexes, 1899-1913. Azimuth obsrvaations (AA Series), 1844-1919. Latitutde observations (AL Series), 1833-1933. Longitude observations (ALO Series), 1844-1939. Time observations (AT Series), 1831-1912. Time computations (ATZ Series), 1845-1920. Astronomical Miscellany (AX Series), 1838-1920. Triangulation station descriptions (GA Series), 1834-1955. Reconnaissance notes (GAR Series), 1834-1912. Base measurements (GB Series), 1833-1935. Base line computations (GBZ Series), 1857-1937. Observations of horizontal and vertical angles (GH Series), 1817-1948. Computations of plane coordinates (GPZ Series), 1934-1937. Bench mark descriptions (HA Series), 1878-1938. Spririt Level observations (HG Series), 1844-1939. Leveling rod books (HGR Series), 1877-1898. Leveling miscellany (HGX Series), 1905. Leveling computations and abstracts (HGZ), 1934-1937, 1940-1941. Leveling adjustments (HGZ Series), 1934-1937. Observations of vertical angles (HV Series), 1833-1929. Field observations of terrestrial magnetism (M Series), 1832-1930. Observations at magnetic observatories (MA Series), 1854-1935 (in Denver). Seismograms, culled from MA Series, 1900-1930 (in Denver). Data for the 1945 world magnetic charts (MZ Series), 1945. Gravity observations (P Series), 1873-1953. Gravity miscellany compuations (PX Series), 1889-1943. Gravity miscellany office computations (PX Series), 1909-1949. Gravity computations for the Brown apparatus and older pendulum methods (PZ Series), 1871-1953. Gravity reductions, interpolations, and corrections (PZ Series), 1900-1956. Instrument plans for the Brown gravity apparatus, 1932-1959. Hydrographic survey soundings (SHS Sries), 1835-1929. Philippine sounding records (SHS-P Series), 1901-1918. Tide-staff readings (T Series), 1835-1962. Descriptions of tidal bench marks (TB Series), 1854-1908. Observations of currents (TC Series), 1844-1914. Leveling Record--Tide Station (TL Series), 1846-1936. Meteorological observations and water temperature and density readings (TW series), 1845-1911. Miscellaneous scientific records with alphabetical series designators, n. d. Cartographic records: Maps and charts (2,600 items): Library and Archives Map Collection, consisting of maps and charts used as source material, 1844-1945 (2,300 items). Supplementary maps and charts, including blueprints, 1911-1935 (300 items). Other records: Card index to bound correspondence, 1832-1903, chiefly that of Superintendent Alexander Bache, 1844-1965, and the Superintendent's File, 1866-1910. Pacific Coast Pilot, 4th ed., revised, 1889 (in San Francisco). Records of Field Activities, 1839-1963 (259 lin. ft.): General records: Logbooks of CGS vessels, 1846-1963 (254 ft.): Letters sent by Assistants F. H. Gerdes, documenting his field survey work in the Florida Keys, the Gulf Coast, New England, and the Mississippi River Valley, 1844-1969; Stehman Forney, concerning surveying operation in the Gulf of Mexico, 1888-1891; and (in San Francisco) W. D. Alexander, regarding surveying operations in the Hawaiian Islands, 1901-1907. Records of the assistant in charge of tidal operations on the Pacific Coast, 1856-1877 (in San Francisco), consisting of letters sent, 1856-1867, and received 1859-1977. Letters sent by Arthur J. Collyer, tidal observer at Tybee I