London
Found in 1975 Collections and/or Records:
Letter and proposal from [George] Lindesay, 1826-01-11
On a method of finding latitude and longitude at sea in fog by two bearings of the sun, using a fog compass and a chronometer.
Letter and proposal from Henry Croaker on the motion of heavenly bodies, 1819-02-17
Includes drawings of a sun-dial and compass, a diagram on the circular motion of the sun, mathematical calculations and tables of longitude.
Letter and proposal from Robert Miller, 1815-11-16
Concerning his method for finding longitude by using a timekeeper and a three-hour sandglass.
Letter and proposal from William McCosh, 1792-06-09
Letter to Sir Philip Stephens of the Admiralty enclosing a proposal for finding longitude by observing the distance between the sun and moon.
Letter and proposal from William Waldron, 1819-02-10
Concerning his plan to find longitude.
Letter and proposal sent from Thomas Johnstone to the Admiralty, 1806-04-24
Four letters and a proposal.
Letter and related note concerning James Hughes, 1813-05-24
Letter and tables from Mr Wellmens, 1827
Letter to the Board of Longitude concerning a clock which 'shews [sic] the difference between true and like time'; with related tables.
Letter and traverse tables from Richard Judson to Charles Dundas, 1805-05-15
The letter outlines various solutions for finding longitude, of which Judson states, 'Here are several ways of finding the longitude some of them certainly will be right'.
Letter and traverse tables from Richard Judson to George Gilpin, 1804-07-11
Letter concerning his solution for finding longitude and including his improved traverse tables.
Letter and traverse tables from Richard Judson to George Gilpin, 1805-01-04
Concerning his solution for finding longitude and including 'a correct traverse table'.
Letter and traverse tables from Richard Judson to Sir Philip Stephens, 1806-04-26
Letter concerning his solution for finding longitude and squaring the circle; with traverse tables and diagrams.
Letter and treatise by James Fosbury, 1821-03-23
Letter to Dr Thomas Young enclosing further observations on the sun's movement along its centre meridian.
Letter and treatise from James Fosbury, 1819-05-06
Letter from Fosbury to Thomas Young enclosing a treatise on the magnet.
Letter and treatise on finding longitude by James Fosbury, 1819-04-27
Letter from Fosbury to Thomas Young enclosing a treatise on longitude from his forthcoming work on 'the inconsistency of the Newtonian System of Philosophical Astronomy'.
Letter and two printed papers on finding the longitude by an altitude of the moon, 1826-06-05
Sent from Thomas Hedgcock to the Board of Longitude.
Letter apologising for delay in visiting the Royal Observatory, 1829-09-07
Sent from Thomas Cotterell to Thomas Taylor.
Letter apologising for delays in repairing chronometers, 1830-09-22
Sent from Thomas Earnshaw to John Pond.
Letter appealing against request to withdraw claims concerning the conduct of the chronometer trial, 1835-02-07
Sent from Arnold and Dent to John Pond.
Letter complaining of a violation of the declaration by J. S. Eiffe, 1833-12-31
Sent from Arnold and Dent to John Pond.
Letter concerning a bill for repairs to chronometers for 1827, 1828-01-01
Sent from John Roger Arnold to Thomas Taylor.
Letter concerning a faulty chronometer, 1827-12-27
Sent from Grimaldi & Johnson to Thomas Taylor.
Letter concerning an offer to purchase an Ellicott chronometer, 1826-05-17
Sent from Edward Ellicott to Thomas Taylor.
Letter concerning an order for two chronometers, Nos. 341 and 502, 1825-12-29
Sent from John Roger Arnold to Thomas Taylor
Letter concerning comparative trials of the sounding instruments of Burt and Massey, 1814-03-08
Copy of a letter from the Admiralty Office to Sir John Barrow [Second Secretary of the Admiralty] containing an extract from the proceedings of the Board of Longitude, requesting that the Admiralty arrange a comparative trial of the sounding instruments of Peter Burt and Edward Massey.