Informing Maskelyne that he had a sent a letter via the Fishburn under Captain [Robert] Brown.

Reporting on his work at the observatory in Sydney. Dawes reports that he had seen nothing of the comet and complains that his duties as Engineer and Officer of Artillery were preventing him from attending to the observatory, which had soured his relationship with the Governor. He asks that a suitable person be sent out to take over the Observatory before his six years there had expired. He also reports the naming of Maskelyne Point.

Reporting on his work at the observatory in Sydney. He refers to the loss of HMS Sirius and states that the timekeeper [K1] was moved to HMS Supply undamaged. The letter also includes a description of his observatory.

Reporting on his work at the observatory at Sydney, and describing the main hindrances to his work (including the lack of 'men of business' in the country, the 'unfortunate want of abilities' of the surveyor of lands, and his problems with the Governor). The letter also includes a description of the local topography of Sydney and his opinion of the country - 'a more dreary, dismal, barren, inanimated [sic] country I believe does not exist anywhere in the whole world'.

Written on board HMS Gorgon on Dawes' return passage to England and concerning the safe return of instruments from the observatory at Sydney.

The letter is concerned with the settling of accounts.

Concerning whether or not he would go abroad, Dr Maskelyne's close observation of him, his tasks at Greenwich, and clothing required for the voyage.

Concerning a delay to the departure and his expected duties as astronomer.

Concerning an interview with Nevil Maskelyne.

Concerning the Board's resolution with regard to his salary, a box received from his mother, and a visit to Sir Joseph Banks.

The letter was sent with gifts of a pair of pigeons and some pears. The letter is covered with various computations in Maskelyne's hand.

Includes a drawing.

In the letter Marsden praises Maskelyne's 'British Mariner's Guide' and method of finding longitude, and relates his own observations made with a sextant.

Covering letter sent with an enclosed paper (non-extant) commenting on the accuracy of some tables.

The letter is concerned with a set of papers which are to be examined by the Board of Longitude Oversight Committee which included Sir Joseph Banks. The letter is covered with various computations.

The letters are primarily from Nevil Maskelyne but include three sent to Andrews by Margaret Maskelyne, following the death of her father.

On the death of Margaret's father, Nevil Maskelyne.

From Mr Marsden concerning papers from Captain Flinders.

Concerning a submission [from Peter Rothwell].

The letters are primarily from Nevil Maskelyne but include three sent to Andrews by Margaret Maskelyne, following the death of her father.

A blue folder of c.44 letters sent by Lady Clive to her niece, Margaret Maskelyne, her brother Nevil Maskelyne, and other family members. Topics include procuring a pair of globes, astronomy, and family or domestic matters. Each letter is preceded by a later note on its content.
All items have been numbered according to their original order in the file.