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Sent from Edward Dent to Thomas Taylor.

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Sent from Robert Molyneux to Thomas Taylor.

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Sent from William Johnson to Thomas Taylor.

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Sent from McCabes & Strachan to Thomas Taylor.

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Sent from Clement Harris to Thomas Taylor.

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Sent from McCabes & Strachan to Thomas Taylor.

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Sent from Parkinson and Frodsham to Thomas Taylor.

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Sent from John Roger Arnold to Thomas Taylor.

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Sent from Edward Baker to Thomas Taylor.

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Sent from Robert and John Roskell via Thomas Hewitt to Thomas Taylor.

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Sent from Henry Gardner to Thomas Taylor.

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Sent from Sutherland Davies & Co. to Thomas Taylor.

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Included is a letter sent from John Croker, Secretary to the Admiralty, to Henry Gardner concerning the purchase of chronometer No. 21. Sent from Henry Gardner to Thomas Taylor.

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Sent from James Scott to Thomas Taylor.

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Sent from John Walker to Thomas Taylor.

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Letters to Thomas Taylor, First Assistant, from J. [Stone?], concerning experiments using rockets to determine longitude, with several preliminary observations.

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Sent from Arnold and Dent to Thomas Taylor.

Scope and Contents From the File:

Letters and declarations to Pond from chronometer makers, including Robert Molyneux, Parkinson & Frodsham, Thomas Earnshaw and E.J. Dent. The volume also includes five undated lists of makers' estimates for repair from Arnold and Arnold & Dent.

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Vouchers of John Pond and Dr Thomas Young for payments to tradesmen and others.

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A set of loose pages dealing with problems in ascertaining latitude and longitude at sea by observation of the stars, with descriptions, computations and formulae referred to apparent time. There are also sections on finding the Moon's longitude from the nautical ephemeris [RGO 4/196: 1r], the motion of the Sun's image in a Hadley quadrant [RGO 4/196: 2r], and the testing of other people's hypotheses.
It is not known if the papers are foliated in their original order.

Scope and Contents From the File:

Correspondence between the Admiralty Office and the Royal Observatory, Greenwich, requesting the loan of chronometers for H M Ships. The principal recipient is John Pond; the principal correspondent is John Barrow. Other correspondents include John Croker, Richard S. Dundas, G. Smith, John Franklin and Sir William Edward Parry.

Scope and Contents From the File:

Correspondence between the Admiralty Office and the Royal Observatory, Greenwich, requesting the loan of chronometers for H M Ships. The principal recipient is John Pond; the principal correspondent is John Barrow. Other correspondents include John Croker, Richard S. Dundas, G. Smith, John Franklin and Sir William Edward Parry.

Scope and Contents From the Item:

Includes accounts of the rates of chronometers, reports on chronometer trials, and eleven related letters.

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Sent from John Roger Arnold to Thomas Taylor.

Scope and Contents A working copy of transit observations of the major stars, 1 January 1804 - 30 December 1811, with notes on the adjustments and alterations to observational technique. The observations include immersions of the stars and Jupiter's satellites; a Royal visit on 3 June 1805; an eclipse of the Sun on 16 June 1806; a piece about woodworm in the transit clock; and a column recording Transit Room temperatures, 1804-1811. All the observations from 5 September 1810 were performed by Thomas Taylor. He...