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Concerning a fault in the sextant and requesting a replacement instrument; also concerning his desire to be placed in the land detachment.

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Concerning repairs to a sextant by Mr Ramsden and supplies for the observatory.

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Concerning a replacement sextant and black index glass from Ramsden.

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Sent from HMS Sirius, concerning a timekeeper [K1] received from William Bayly.

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Reporting on the timekeeper [K1], and on his observations during the passage to Tenerife (en route to New South Wales).

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Concerning the rate of the Board of Longitude's watch and the provision of books and instruments.

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Concerning the rate of the Board of Longitude's watch; the provision of books; the testing of instruments intended for the observatory; the discovery of damage to a sextant; and his request for an advance of a year's subsistence.

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Requesting the advance of a year's subsistence and his request to be appointed to the land service at Botany Bay; also enclosing a copy of a letter from Lord Howe about his appointment.

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Concerning supplies of instruments and other preparations.

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Concerning receipt of a new sextant, trials of new instruments and other preparations.

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Concerning supplies of instruments, the rate of Mr Kendall's first timekeeper [K1], and his preparations.

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Concerning observations taken (including observations for the rate of the timekeeper, K1).

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Concerning observations made and including revised calculations of latitudes and longitudes by the timekeeper [K1].

Scope and Contents Notebook containing notes on various subjects including the health of Nevil Maskelyne and Margaret Maskelyne's serious illness, many remedies to relieve illness such as colds, chilblains and scurvy, notes on the repair and maintenance of Nevil Maskelyne's watches, notes on his assistants, and notes on observations made. There is also a list of wages paid, a list of silverware, a list of items received from Lieutenant Dawes (mainly astronomical instruments), a shopping list, a list of items...

Scope and Contents From the File:

Miscellaneous petitions and memorials making requests of the Board of Longitude.

Scope and Contents From the Item:

Astronomical observations made on Flinders' voyage on HMS Investigator, with an extract from Flinders' memoir and a related letter [RGO 14/68: 70-83]. Also astronomical observations made by William Dawes, with a related note and letter [RGO 14/68: 84-90].

Scope and Contents From the File:

A diary of work performed on the 'Nautical Almanac' and arrangements for its compilation and publication.

Scope and Contents From the File:

Papers regarding the loan and return of instruments belonging to the Board of Longitude and concerning persons entitled to receive Board publications.

Scope and Contents Twenty six letters sent by William Dawes to Nevil Maskelyne, covering his initial preparations for departure, his passage via Rio de Janeiro, the establishment of the observatory at Port Jackson, his work there, and his eventual return on HMS Gorgon six years later. The letters include detailed accounts of setting up the observatory in Sydney where he hoped to observe a comet, and of the difficulties encountered there (particularly shortages of supplies and Dawes' own disagreements with...