A lot of eleven (11) United States Naval Observatory volumes

Washington, D.C: United States Government Printing Office. First Edition. Hardcover. Good. 9 1/2" x 11 3/4. The lot is comprised of eleven (11) tall quarto hardcover volumes bound in dark green buckram cloth, covers blind-stamped in two logos of bi-directional arrows, both front and rear, with sharp and distinct lettering to spine. Bumping to spine heads and feet, bumping to some tips, else and withal, clean and quite sturdily bound. Withdrawn from an academic library (the University of California, Santa Clara), but with just blue ink-stamps denoting such. Volume XII: Part I: Equatorial Observations, 1908-1926, comprised of Two Parts and Appendix, devoted to equatorial observations made between 1908 and 1926. Part I discourses upon the equipment used (a 26-inch Equatorial telescope, The Clark Micrometer II, The Warner and Swasey Micrometer of the 26-inch Equatorial, the 12-inch Equatorial, and others), and then observations of asteroids, comets, occultations, solar eclipses and transit of Mercury, eclipses of Satellites, Double Stars, Miscellaneous stats, and satellites of Mars, Jupiter, Saturn, Uranus, Neptune and other planets. Part II is comprised of photographic equatorial observations, including of asteroids, and use of the photoheliograph to make observations. Eleven plates, all sharp and distinct, printed on high-gloss paper, including of the Repsold Micrometer, and the electric driving clock of the photographic equatorial. 592 pp. H.R. Morgan, Volume XIII, "Results of Observations With the Nine-Inch Transit Circle 1913-1926 -- observations of the Sun, Moon, and Planets, a catalogue of 9,989 standard and intermediary stars, and miscellaneous stars." Hundreds and hundreds of tables and graphs and charts. The Observatory was to attempt to observe the Backlund stars in addition to the intermediary stars observable there, and to undertake to secure four observations of each of the intermediary stars observable there. 365 pp. Second Series, Volume XI, "Results of Observations with the Six-Inch Transit Circle 1909-1918," reduced under the direction of J.C. Hammond, discussed by J.C. Hammond and C.B. Watts, with five sharp and distinct black-and-white photographic plates printed on high-gloss paper, including of the 6-inch transit circle with accessories, the 6-inch transit circle house, and the axial microscope. 712 pp.(Two copies). Second Series, Volume VI, "Equatorial Observations, 1893-1907," and devoted to the use of the 16-inch and 12-inch Equatorial telescopes, observations satellites of the major planets, including of Mars, Jupiter, Saturn, Uranus, and Neptune, then measurements of diameters of planets and satellites, including of Mercury, Venus, Mars, Jupiter, Saturn, Uranus and Neptune. Ten black-and-white plates, including of the buildings that house the Equatorial and Dome telescopes. lxvii + multiple appendices, unpaginated, but roughly 750 pp. W.S. Eichelberger and F.B. Littell, "Catalogue of 23521 Stars between 13 degrees 35’ and 45 degrees 25’ South Declination for the Equinox 1850, from zone observations made at the United States Naval Observatory, 1846-1852." Second Series, Volume VII, xlvii + 558 pp. F.B. Littell, G.A. Hill and H.B. Evans, reduced by F.B. Littell, "Vertical circle observations made with the five-inch alt-azimuth instrument, 1898-1907," Second Series, Volume VIII. Descriptions of instruments, methods of observing, double stars, state of the seeing, thermometers and barometers, levels, clock corrections, the Zenith Distance Micrometer, and other technical topics and disciplines. Fine black-and-white illustration of the alt-azimuth instrument just opposite first page of Introduction. xxxvii + 465 pp. W.S. Eichelberger, "Results of Observations With The Nine-Inch Transit Circle, 1903-1911," being Series II, Volume IX, Part I (1920). Contains also Results of Observations 1903-1911 and Catalogue of 4526 stars for 1900, with some scuffing to and discoloration of the green buckram cloth boards, short closed tear to the penultimate endpaper, else clean and unmarked of interior. Six sharp and distinct black-and-white plates printed on high-gloss paper, and hundreds of other black-and-white illustrations, tables, charts and graphs. Sequentially paginated appendices ~750 pp. W.S. Eichelberger, "Observations Made With The Nine-Inch Transit Circle, 1903-1908," being Series II, Volume IX, Part II (1915). Hundreds of other black-and-white illustrations, tables, charts and graphs, the volume being split into two long sections, "Introduction" and "Observations and Reductions." Alphabettically sequential pagination, but roughly 780 pp. W.S. Eichelberger, "Observations Made With The Nine-Inch Transit Circle, 1903-1908-1911," being Series II, Volume IX, Part III and IV (1918), with inch-long ding to upper rear board, else clean and unmarked of interior. Hundreds of other black-and-white illustrations, tables, charts and graphs, the volume being split into four long sections, including Errata, Part III.--Observations made with the nine-inch transit circle, 1908-1911, Part IV.--Observations made with the nine-inch transit circle, 1912-1913, and Appendix.--Determination of the difference of longitude between Washington and Paris, 1913-1914. Alphabetically sequential pagination ~450 pp. George A. Hill, Volume X, Part I: "Observations Made With the Prime Vertical Transit Instrument 1893-1912" (1926). Hundreds of other black-and-white illustrations, tables, charts and graphs. Nine sharp black-and-white plates, including at frontis. Volume X, Part II: "Total Solar Eclipses of August 30, 1905, and June 8, 1918, aviators' note on the total solar eclipse of Sept 10, 1923. Alphabetically sequential pagination ~ 780 pp., including xlix. J.H.C. Coffin, T.J. Page, and Charles Steedman, "Zones of Stars Observed at the United States Naval Observatory With the Mural Circle in the years 1846, 1847, 1848, and 1849" (1872). Comprising Washington Observations for 1869—Appendix II. 329 pp. A description of the “meridian” instrument, method of observing and observers, corrections and reductions for micrometer wires, table of reductions to the meridian, values of Delta R, corrections and rates of the clock, coincidence of wires, value of the micrometer-screw, and values of the Zenith Point, and then a note of errata, and a clarification of zones. xxv + 331 pp.Member, I.O.B.A., C.B.A., and adherent to the highest ethical standards. Additional postage may be required for oversize or especially heavy volumes, and for sets.