Scope and Contents From the File:

Correspondence regarding the effect of magnetic variation on the mariner's compass, the use of magnetic variation to establish longitude and the cause of magnetic variation.

Scope and Contents From the File:

Correspondence regarding the effect of magnetic variation on the mariner's compass, the use of magnetic variation to establish longitude and the cause of magnetic variation.

Scope and Contents From the File:

Correspondence regarding the effects of magnetic variation on the mariner's compass, the use of magnetic variation to establish longitude and the cause of magnetic variation.

Scope and Contents From the Series: The collection contains a complete set of astronomical observation ledgers, with clock error notes, computation ledgers, star catalogues, weather records and correspondence. There are observations of comets, including measurements taken of Encke's Comet, 1828, and Halley's Comet, 1835, and observations of rockets, made with Sir James South in 1831. The papers include Pond's measurements for his work on the proper motions of stars, stellar parallax and other subjects, as well as substantial...

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Sent from Admiral Alexander Cochrane to Mr Cox, agent to Mr Arnold.

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Sent to John Barrow; originally enclosed with the letter at [RGO 5/231: 92].

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In which Fisher offers his services as astronomer to Captain Parry's Arctic expedition.

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Forwarding a letter from Fearon Fallows at Cape Town to the Board of Longitude.

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:

Two letters sent by Wood along with a printed notice advertising his 'Universal Analemma'; also a forwarding letter from John Barrow.

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Informing Davidson that his letter outlining his ideas on longitude had been laid before the Lord Commissioners of the Admiralty and was now being referred to Dr Young.

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.

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.

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 File:

Correspondence regarding various astronomical and nautical tables.

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Originally enclosing a letter by G. Davidson for presentation before the Board of Longitude.

Scope and Contents From the Series: The first part of collection is comprised of papers concerning the internal affairs of the Board of Longitude, including the granting of awards, accounts, minutes, committee papers, petitions and memorials, the loan of instruments, publications and the payment of staff. These are followed by a wide range of papers relating to the Board's work, concerning clocks, chronometers and other instruments; longitude and latitude; magnetic variation; schemes and inventions; tables; pendulum...

Scope and Contents From the Series: The first part of collection is comprised of papers concerning the internal affairs of the Board of Longitude, including the granting of awards, accounts, minutes, committee papers, petitions and memorials, the loan of instruments, publications and the payment of staff. These are followed by a wide range of papers relating to the Board's work, concerning clocks, chronometers and other instruments; longitude and latitude; magnetic variation; schemes and inventions; tables; pendulum...

Scope and Contents From the Item:

Two letters from Fallows to John Barrow, and two related notes from Barrow to Dr Young.