Board of Longitude
Found in 388 Collections and/or Records:
Letter from Samuel Grimaldi to the Board of Longitude, 1812-11-26
Ten letters from Grimaldi to Captain Thomas Hurd and the Board of Longitude, with two copy replies from the Admiralty Office and Hurd.
Letter from Samuel Grimaldi to the Board of Longitude, 1813-03-02
Originally enclosed in the letter at [RGO 14/24: 280].
Letter from Samuel Grimaldi to the Board of Longitude, 1813-06-01
Originally enclosed in the letter at [RGO 14/24: 283].
Letter from Samuel Smethurst to the Board of Longitude, 1786-11-27
Outlining his method of finding longitude.
Letter from Samuel Thomas to the Board of Longitude, 1788-12-08
With an index of names.
Letter from Seth Hunt to the Commissioners of the Board of Longitude, 1819-03-30
Four letters from Hunt to Dr Thomas Young and the Board of Longitude. Hunt was an American citizen residing in Covent Garden, who obtained a patent for his new escapement in 1817.
Letter from Sir James South to the Board of Longitude, 1828-04-03
Concerning observations made by South and Herschel.
Letter from T. Lowitz to the Board of Longitude, 1791-02-13
Letter and proposal.
Letter from Thomas Bannerman to the Board of Longitude, 1822-07-10
Letter from Thomas Cumming to the Board of Longitude, 1821-01-29
Concerning the rate of his chronometer.
Letter from Thomas Cumming to the Board of Longitude, 1823-02-06
Concerning the rate of his chronometer.
Letter from Thomas Earnshaw to the Board of Longitude, 1802-03-06
Letter from Thomas Earnshaw to the Board of Longitude, 1792-06-01
Letter from Thomas Earnshaw to the Board of Longitude, 1798-06-02
Letter from Thomas Earnshaw to the Board of Longitude, 1798-11-30
The series also includes two accounts of the rates of watches by Josiah Emory.
Letter from Thomas Earnshaw to the Board of Longitude, 1799-03-01
The series also includes two accounts of the rates of watches by Josiah Emory.
Letter from Thomas Earnshaw to the Board of Longitude, 1801-06-04
The series also includes two accounts of the rates of watches by Josiah Emory.
Letter from Thomas Hedgcock to the Board of Longitude, 1816-02-28
Originally enclosed in the letter to Thomas Hurd at [RGO 14/35: 294-294a].
Letter from Thomas Hedgcock to the Board of Longitude, 1816-09-04
Originally enclosed in the letter to Thomas Hurd at [RGO 14/35: 296-296a].
Letter from Thomas Hedgcock to the Board of Longitude, 1818-05-28
Originally enclosed in the letter to Thomas Hurd at [RGO 14/35: 299-299a].
Letter from Thomas Hedgcock to the Board of Longitude, 1818-11-10
24 letters, with related papers and observations.
Letter from Thomas Hedgcock to the Board of Longitude, 1825-04-12
24 letters, with related papers and observations.
Letter from Thomas Hedgcock to the Board of Longitude, 1826-09-18
24 letters, with related papers and observations.
Letter from Thomas Hedgcock to the Board of Longitude, 1827-12-03
24 letters, with related papers and observations.
Letter from Thomas Hedgcock to the Board of Longitude, 1813-02-25 - 1813-04-15
With a note on the reverse by John Croker.
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