RECORDS: 26 - 44 of 44
Sidereal and Mean Time Clocks, 1858-07-02/1860-07-16 Digital
Item — Box 4Identifier: KG11365-6, phaedra0149Data relating to timing output of various clocks and chronometers.
Sidereal and Mean Time Clocks, 1860-07-16/1862-09-03 Digital
Item — Box 4Identifier: KG11365-6, phaedra01501860 July 17/18: "These chronometers were used for observing the solar eclipse. See Transit Book of this date."; "Corrections of the New Clock. (Isody. Escap.) [i.e., Isodynamic Escapement] Oct. 23 1860 to Apr. 8 1861; Timing data recorded for various devices; Cambridge and Boston
Telegraph, 1848-07-06/1848-10-28 Digital
Item — Box 4Identifier: KG11365-6, phaedra0143Programme of Telegraph operations from Cambridge observatory (C) to Newyork [sic] Observatory (N) for 1848
Observations for clock corrections for Telegraph Operations; Transits July 8th 1848; Aurora; E Bootis, a2 Libra, B Librae, a Corona Borealis, a Serpentis; Polaris; Spica; Lyra; Star Signals; Immersion of Librae; Observations for Personal equation between WCB and Prof. Loomis; Arcturus illumination day light.
Transit Circle, 1848-11-07/1849-07-30 Digital
Item — Box 1Identifier: KG11365-6, phaedra0001Annotated May 1854
Transit Circle, 1849-07-30/1849-09-25 Digital
Item — Box 1Identifier: KG11365-6, phaedra0002Transit Circle, 1858-02-10/1858-07-05 Digital
Item — Box 1Identifier: KG11365-6, phaedra0029Transit Circle, 1859-01-24/1859-08-17 Digital
Item — Box 1Identifier: KG11365-6, phaedra0031Transit Circle, 1859-08-17/1860-01-23 Digital
Item — Box 1Identifier: KG11365-6, phaedra0032Transit Circle, 1849-11-30/1850-02-06 Digital
Item — Box 1Identifier: KG11365-6, phaedra0004Transit Circle, 1850-02-06/1850-04-30 Digital
Item — Box 1Identifier: KG11365-6, phaedra0005Transit Circle, 1850-05-01/1850-10-20 Digital
Item — Box 1Identifier: KG11365-6, phaedra0006Contains a note of introduction for Charles W. Tuttle (1850-07-12)
Transit Circle, 1850-10-21/1850-12-26 Digital
Item — Box 1Identifier: KG11365-6, phaedra0007Transit Circle, 1852-12-01/1853-07-08 Digital
Item — Box 1Identifier: KG11365-6, phaedra0014Describes an experiment to ascertain the speed of sound
Transit Circle, 1853-07-08/1854-02-26 Digital
Item — Box 1Identifier: KG11365-6, phaedra0015Transit Circle, 1854-02-28/1854-08-15 Digital
Item — Box 1Identifier: KG11365-6, phaedra0016Transit Circle, 1854-08-15/1854-11-27 Digital
Item — Box 1Identifier: KG11365-6, phaedra0017Transit Circle, 1857-09-21/1857-11-03 Digital
Item — Box 1Identifier: KG11365-6, phaedra0027Transit Circle [Electric Telegraph], 1850-12-26/1851-04-03 Digital
Item — Box 1Identifier: KG11365-6, phaedra0008Transit Instrument, 1860-01-23/1860-06-23 Digital
Item — Box 1Identifier: KG11365-6, phaedra0033Filtered By
REFINE MY RESULTS:
- Subject
- Astronomical clocks -- United States. 5
- Comets. 4
- Chronometers. 2
- Astronomical instruments -- Design and construction. 1
- Donati comet. 1
- Moon 1 ∧ less
- Names
- Bond, William Cranch, 1789-1859 19
- Hall, , Asaph, III, 1829-1907 11
- Tuttle, Charles Wesley, 1829-1881 10
- Bond, Richard Fifield, 1827-1866 9
- Coolidge, Philip Sidney, 1830-1863 8
- Tuttle, Horace Parnell, 1837-1923 8
- Safford, Truman Henry, 1836-1901 6
- Harvard College Observatory 1
- Langley, S. P. (Samuel Pierpont), 1834-1906 1
- Loomis, Elias, 1811-1889 1
- Pierce, Benjamin. 1
- Rogers, William A. (William Augustus), 1832-1898 1
- Searle, G. M. (George Mary), 1839-1918 1
- Trouvelot, E. L. (Etienne Leopold), 1827-1895 1
- Winlock, Joseph, 1826-1875 1 ∧ less