London
Found in 1559 Collections and/or Records:
'A letter of observation, adapted to the explanations of the latitude and longitudinal influence for the use of the Mariner', 1813-08-07
Sent from Richard Benjamin Parker to Captain Thomas Hurd.
Accompanying letter and report listing chronometers under repair by Arnold and Dent, 1831-04-23
Sent from Arnold and Dent to John Pond.
Account from G. Waddington of the going of a watch made by Mr Kendall, 1784-02 - 1784-03
Nine letters and an account of the going of a watch.
Account of Peter Barlow's experiments on board the ships 'Leven', 'Conway' and 'Griper' for correcting the local attraction of the vessels, 1819 - 1824
Correspondence regarding the effect of magnetic variation on the mariner's compass, the use of magnetic variation to establish longitude and the cause of magnetic variation.
Admiralty note relating to Christopher Hansteen's variation chart, 1827-04-14
Correspondence regarding the effect of magnetic variation on the mariner's compass, the use of magnetic variation to establish longitude and the cause of magnetic variation.
An account for repairs to Earnshaw chronometer Nos. 343, 717 and 814, 1831-04-21
Sent from William Johnson to Thomas Taylor.
An account listing chronometers awaiting repair, 1829-05-15
Provides details of repairs for chronometer Nos. 405, 421, 425, 485, 502, 511, 530, 541. Sent from John Roger Arnold to Thomas Taylor.
Andrew Pigge on a theory that the magnetic needle is held on its meridian by the laws of gravity only, 1824-04-15
Correspondence regarding the effect of magnetic variation on the mariner's compass, the use of magnetic variation to establish longitude and the cause of magnetic variation.
Anonymous letter to the Board of Longitude, 1827-06-09
Enclosing the proposals for longitude at [RGO 14/36: 118-120].
Anthon Lebersonyer on perpetual motion, 1817-02-14
Application for employment from William Turnbull, 1828-05-28
Miscellaneous petitions and memorials making requests of the Board of Longitude.
Application from James Stoat for a post in New South Wales, 1818-02-13
Miscellaneous petitions and memorials making requests of the Board of Longitude.
Arnold's account of money received from the Board prior to 28 March, 1783, 1783-03-28
Arthur Hodge on measuring a circle, 1820 - 1821
Baron Paris de Boisrouvray on a magnetic compass, 1819 - 1822
Correspondence regarding the effect of magnetic variation on the mariner's compass, the use of magnetic variation to establish longitude and the cause of magnetic variation.
Benjamin Marston's 'marine dromometer' or instrument for measuring a ship's way at sea, 1791-12-17
Letter and proposal.
Benjamin Wood on a magnetic instrument for ascertaining longitude, 1818
Correspondence regarding the effects of magnetic variation on the mariner's compass, the use of magnetic variation to establish longitude and the cause of magnetic variation.
Captain [Arthur Batt] Bingham on a perpetual log, 1823
Letter to Dr Thomas Young requesting to submit a model of a perpetual log invented and used by Bingham while in command of the ship HMS Dover. He also provides a description of the log and how it should be used.
Captain Houston Stewart's report on Captain Graydon's celestial compass, 1826
Correspondence regarding the effect of magnetic variation on the mariner's compass, the use of magnetic variation to establish longitude and the cause of magnetic variation.
Charles Hudson on the quadrature of the circle, 1825-04-02
Charles Jacomb Jr. on perpetual motion, 1813
Col. Edward Sabine on the position of the magnetic pole, 1824-03-31
Correspondence regarding the effect of magnetic variation on the mariner's compass, the use of magnetic variation to establish longitude and the cause of magnetic variation.
Copies of signed proofs and lists by Fuller, 1784 - 1785
Originally enclosed with the letter at [RGO 14/36: 150-151].
Copies of three letters from Thomas Hurd to Robert Pringle, 1813-06-05 - 1814-04-12
Includes a letter and two printed papers from Jaci (of Messina), four letters written by Robert Pringle on his behalf, and copy replies from Thomas Hurd.
Copy letter from Captain Thomas Hurd to Peter Burt, 1814-03-09
Informing Burt that the Admiralty had been instructed to conduct a comparative trial of his sounding instrument and that of Edward Massey.