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An undated photostat of a letter in French from Jean Delambre to Nevil Maskelyne, 17 July 1787, thanking him for allowing him the use of many of his observations, praising the quality of the observations, and informing Maskelyne that he is using them to determine the last twenty oppositions of Jupiter and Saturn.

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An undated photostat of a letter in French from Jean Delambre to Nevil Maskelyne, 20 February 1806, praising him on behalf of the Bureau des Longitudes for his work on the 'Nautical Almanac' and making various remarks about lunar observations.

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An undated photostat of a letter in French from Jean Delambre to Nevil Maskelyne, 7 June 1789, thanking him for tables he has sent him, which he has compared with those of Halley and Mayer, and pointing to errors in the tables of longitude. He also requests observations of the Sun, Jupiter and Saturn.

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An undated photostat of an undated letter from Joseph de Lalande to Nevil Maskelyne asking him to make observations of Mercury with the mural circle and mentioning observations by Jean Delambre.

Scope and Contents An undated photostat of a letter from Nevil Maskelyne to Sir Joseph Banks, 1 May 1801, regarding communications he has received from several other astronomers. Maskelyne states that Joseph de Lalande is working on his 'Bibliographie Astronomique' and has completed his 'Histoire Celeste', and that Jean Delambre is to calculate his tables of the Sun again. Maskelyne also mentions that he has received a letter from Giuseppe Piazzi and praises the work he has been doing on verifying the...

Scope and Contents A folder of c.55 letters sent by Lady Clive mainly to her niece, Margaret Maskelyne. Topics include astronomy, politics (including the abdication of Napoleon and events in Spain) and family or domestic matters, including details of family history, and the death of her daughter Margaret Walpole as a result of injury by fire (1814). The letter of 3 Dec. 1814 includes mention of Nevil Maskelyne's 'confrère', Delambre. That of 19 June 1816 refers to the knighthood of William Herschel. That of 17...

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An undated photocopy of 'Maskelyne Book 2' entitled 'Presents of my Observations, Papers in the Philosophical Transactions, &c', covering 1775-1803. The book includes the names of people to whom Nevil Maskelyne has arranged to give speeches, including Joseph de Lalande, Sir John Pringle, Charles Mason, Dr Lind and Jean Delambre.

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A memorandum, 11 September 1790, concerning work remaining to be done at Greenwich by way of repairs and alterations to the Observatory, and rough notes on financial affairs, such as the assistants' salaries and Maskelyne's pension.