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Copied by the Admiralty Office.

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Copied by the Admiralty Office in 1792.

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Includes accounts of the rates of his chronometers Green and Blue, as tried at the Royal Observatory, reports outlining objections to his petition, and seven letters.

Scope and Contents From the Item:

Includes accounts of the rates of his chronometers Green and Blue, as tried at the Royal Observatory, reports outlining objections to his petition, and seven letters.

Scope and Contents From the Item:

Includes accounts of the rates of his chronometers Green and Blue, as tried at the Royal Observatory, reports outlining objections to his petition, and seven letters.

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Includes a note on how the tests were performed.

Scope and Contents Minutes of Board of Longitude meetings regarding, among other matters, discussions on John Harrison's first marine chronometer (H1); the purchase of new instruments for work on the longitude and latitude of the coasts of Britain; improvements to the reflecting telescope; Tobias Mayer's lunar motion tables; the trial of John Harrison's chronometers; errors in the tables of the satellites; Schutz's machine for finding longitude; Chistopher Irwin's marine chair; the use of lunar observations...

Scope and Contents Minutes of Board of Longitude meetings regarding, among other matters, the rates of various chronometers; Charles Hutton's tables of products, powers and roots of natural numbers; the voyages of HMS 'Resolution' and HMS 'Discovery' and the examination of their log books; John Arnold's improvements to his watches; a suitable site for the Board of Longitude's instruments after the burning of the cupola of the Greenwich Hospital where they had been kept; improvements to reflecting telescopes;...

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For a related letter, see [RGO 5/229: 67].

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Copies of outgoing correspondence from Astronomer Royal, John Pond, and his assistant, Thomas Taylor, at the Royal Observatory. Some of the letters are addressed to chronometer makers. Note that correspondence to more than one person often appears on the same page.

Scope and Contents From the Item:

Copies of outgoing correspondence from Astronomer Royal, John Pond, and his assistant, Thomas Taylor, at the Royal Observatory. Some of the letters are addressed to chronometer makers. Note that correspondence to more than one person often appears on the same page.

Scope and Contents From the Item:

Copies of outgoing correspondence from Astronomer Royal, John Pond, and his assistant, Thomas Taylor, at the Royal Observatory. Some of the letters are addressed to chronometer makers. Note that correspondence to more than one person often appears on the same page.

Scope and Contents From the Item:

Copies of outgoing correspondence from Astronomer Royal, John Pond, and his assistant, Thomas Taylor, at the Royal Observatory. Some of the letters are addressed to chronometer makers. Note that correspondence to more than one person often appears on the same page.

Scope and Contents From the Item:

Copies of outgoing correspondence from Astronomer Royal, John Pond, and his assistant, Thomas Taylor, at the Royal Observatory. Some of the letters are addressed to chronometer makers. Note that correspondence to more than one person often appears on the same page.

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A related letter (dated 20 September 1826) on the same page is crossed out.

Scope and Contents From the Item:

Copies of outgoing correspondence from Astronomer Royal, John Pond, and his assistant, Thomas Taylor, at the Royal Observatory. Some of the letters are addressed to chronometer makers. Note that correspondence to more than one person often appears on the same page.

Scope and Contents Correspondence with the Worshipful Company of Clockmakers and the British Horological Institute regarding the Worshipful Company of Clockmakers annual prizes, the encouragement of horological inventions, and financial contributions to the inmates of Company House at the Clock and Watchmakers' Asylum and the Widows' House. There is also correspondence with R.T. Gould relating to his book on chronometers and the purchase of the original Blue Chronometer of Thomas Mudge (1777) for the Company...

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The rates have been kept separate for the two watches.

Scope and Contents From the File:

Nine exercise books bound together, containing the rating of chronometers and watches.

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Concerning a pamphlet by Thomas Mudge.

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Concerning timekeepers put on board the HMS Sans Pareil.

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Sent from John Barrow to John Pond.

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Sent from John Barrow to John Pond.

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Sent from John Barrow to John Pond.

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Sent from Commander William Benjamin Suckling to John Croker.