London
Found in 1996 Collections and/or Records:
Letter from John Tyrell Baylee to Dr Thomas Young, 1823-07-31
Six letters and a proposal.
Letter from John Tyrell Baylee to Dr Thomas Young, 1824-08-02
Six letters and a proposal.
Letter from John Tyrell Baylee to Dr Thomas Young, 1825-07-30
Six letters and a proposal.
Letter from John Tyrell Baylee to Dr Thomas Young, 1826-12-15
Six letters and a proposal.
Letter from John Tyrell Baylee to Dr Thomas Young, 1826-12-15
Six letters and a proposal.
Letter from John Tyrell Baylee to John Wilson Croker, 1824-01-30
Concerning his method of finding longitude.
Letter from John Tyson to the Board of Longitude, 1814-07-05
Stating that he had invented a method to ascertain longitude and to measure a ship's way at sea.
For further letters from Tyson, see also [RGO 14/40: 528-529].
Letter from John Tyson to the Board of Longitude, 1793-06-07
Two letters concerning Tyson's proposed invention of a timepiece for determining longitude.
Letter from John Tyson to the Board of Longitude, 1816-03-05
Two letters concerning Tyson's proposed invention of a timepiece for determining longitude.
Letter from John Vancouver to the Commissioners of the Board of Longitude, 1823-09-02
Concerning a mode by which chronometers could be kept at a stable temperature.
Letter from John Warburton to Sir Philip Stephens, 1785-06-15
Concerning an instrument for showing the true time of day and concerning magnetic variation.
Letter from John Wilson Croker to Dr Thomas Young, 1823-05-05
Concerning Kater's application to be Naval Hydrographer.
Letter from John Wilson Croker to Dr Thomas Young, 1821-06-02
Concerning bills for instruments.
Letter from José Casamayor, 1825-06-21
Requesting a reward for discovering a means of finding longitude.
Letter from José de Mendoza y Ríos, 1796-03-04
With an index of names.
Letter from José de Mendoza y Ríos concerning rules for computing latitude by two altitudes of the sun, 1796-12-02
Correspondence regarding methods for establishing latitude.
Letter from José Victorino dos Santos e Souza Mattos, 1827-07-04
Informing the Board of Longitude that he had sent a printed copy (in Portuguese) of his 'theory of the universe founded on the fluctuation of the satellites and the anti-gravitation of the sun'. He also mentions that as a Portuguese national he had studied astronomy in Europe, and laments the difficulty of pursuing it in Brazil.
Letter from José Victorino dos Santos e Souza Mattos, 1827-08-18
Originally enclosing further sections of his work for the consideration of the Board of Longitude.
Letter from José Victorino dos Santos e Souza Mattos, 1827-09-20
Letter and proposal.
Letter from José Victorino dos Santos e Souza Mattos to the Board of Longitude, 1828-06-05
With an index of names.
Letter from Joseph Banks to Harry Parker, 1785-03-17
Concerning Antonio Maria Jaci.
Letter from Joseph Barlow to Captain Thomas Hurd, 1817-10-06
Six letters from Joseph Barlow, with accompanying papers and two related notes from the Navy Office.
Letter from Joseph Barlow to Captain Thomas Hurd, 1817-11-05
Six letters from Joseph Barlow, with accompanying papers and two related notes from the Navy Office.
Letter from Joseph Barlow to Captain Thomas Hurd, 1817-11-29
With a copy of a reply from Hurd to Barlow on the reverse.
Letter from Joseph Barlow to Captain Thomas Hurd, 1818-03-06
Six letters from Joseph Barlow, with accompanying papers and two related notes from the Navy Office.