Bond, George Phillips, 1825-1865.
Found in 48 Collections and/or Records:
Reductions of Moon Culminations, 1851-07-01/1854-10-02 Digital
Sidereal and Mean Time Clocks, 1856-01-01/1856-04-21 Digital
Sidereal and Mean Time Clocks, 1856-01-01/1857-02-27 Digital
Timings of chronometers and Mean Time clocks; notes on clock adjustments; Note of offer by Mr. Dodge to sell telegraph lines to the observatory
Sidereal and Mean Time Clocks, 1856-07-02/1857-02-27 Digital
Questions propounded by Mr Briggs, relative to his clock with a circulating pendulum; Comparison of sidereal clock with that containing Briggs patent circulating pendulum; recorded chronometer timings; Lieut. Ives set up his transit instrument on the stand of our variation-transit and obtained the following y E.C. and the Spring-governor.; Result, time to be given 4 1/2 seconds sooner at Cambridge than the bells at Boston should strike.
Sidereal and Mean Time Clocks, 1858-07-02/1860-07-16 Digital
Data relating to timing output of various clocks and chronometers.
Sidereal and Mean Time Clocks, 1860-07-16/1862-09-03 Digital
1860 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
Programme 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
Annotated May 1854
Transit Circle, 1849-07-30/1849-09-25 Digital
Transit Circle, 1858-02-10/1858-07-05 Digital
Transit Circle, 1859-01-24/1859-08-17 Digital
Transit Circle, 1859-08-17/1860-01-23 Digital
Transit Circle, 1849-11-30/1850-02-06 Digital
Transit Circle, 1850-02-06/1850-04-30 Digital
Transit Circle, 1850-05-01/1850-10-20 Digital
Contains a note of introduction for Charles W. Tuttle (1850-07-12)
Transit Circle, 1850-10-21/1850-12-26 Digital
Transit Circle, 1852-12-01/1853-07-08 Digital
Describes an experiment to ascertain the speed of sound
Transit Circle, 1853-07-08/1854-02-26 Digital
Transit Circle, 1854-02-28/1854-08-15 Digital
Transit Circle, 1854-08-15/1854-11-27 Digital
Transit Circle, 1857-09-21/1857-11-03 Digital
Transit Circle [Electric Telegraph], 1850-12-26/1851-04-03 Digital
Transit Instrument, 1860-01-23/1860-06-23 Digital
REFINE MY RESULTS:
- Type
- Archival Object 45
- Collection 3
- Subject
- Astronomical clocks -- United States. 7
- Chronometers. 5
- Comets. 5
- Astronomers -- United States. 3
- Astronomical instruments -- Design and construction. 3
- Astronomy -- History. 3
- Correspondence. 3
- Longitude -- Measurement -- History. 3
- Time measurements. 3
- Amateur astronomy. 2
- Astronomical photography. 2
- Astronomical photometry. 2
- Astronomy -- 19th century. 2
- Astronomy -- Research. 2
- Chronograph. 2
- Donati comet. 2
- Financial records. 2
- Occultations. 2
- Scientific apparatus and instruments. 2
- Solar eclipses -- Observations. 2
- Stars -- Clusters. 2
- Surveying -- Geodetic. 2
- Variable stars. 2
- Account books. 1
- Annual reports. 1
- Asteroids--Orbits. 1
- Asteroids. 1
- Astronomical observatories -- Massachusetts -- Cambridge. 1
- Astronomy -- Observations. 1
- Astronomy. 1
- Auroras--Spectra. 1
- Auroras. 1
- Comets--Orbits. 1
- Diaries 1
- Geodesy -- Observations 1
- Geodesy. 1
- Harvard University -- Astronomy 1
- Horology. 1
- Magnetic fields -- Measurement 1
- Magnetic fields. 1
- Magnetism. 1
- Manuscripts (documents) 1
- Meteorology -- Observations 1
- Meteorology. 1
- Meteors -- Orbits 1
- Meteors. 1
- Moon 1
- Nebulae. 1
- Orion Nebula 1
- Photographs 1
- Planets--Brightness. 1
- Planets--Orbits. 1
- Planets. 1
- Refracting telescopes. 1
- Telegraph. 1
- Telescopes. 1
- Variable stars -- Spectra 1 ∧ less