Scope and Contents Astronomical and nautical tables calculated for the meridian of Paris, extracted from Lalande's 'Connaissance des Temps' for 1762. The list of tables is in French.1. Table of times to reduce parts of the equator.2. Right ascension table for the adjustment of differences in degrees when the clock is too fast or to add on when the clock is too slow. 3. Deduction table to obtain more exact passages of the stars on the meridian.4. Conversion table of average or...

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Astronomical tables and ephemerides, including notes on Burg's new lunar tables, elements of solar tables of several astronomers (de Lalande, Mayer, de Lacaille, Morris, Mason and Howe) and several memoranda on comparisons of various stars.

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An undated photostat of a letter in French from Joseph de Lalande to Nevil Maskelyne, 30 October 1788, referring to various books by L. Euler and tables for Jupiter and Saturn that are now complete, and asking him to give his respects to Dr Shephard, a mutual friend.

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An undated photostat of a letter in French from Joseph de Lalande to Nevil Maskelyne, 4 March 1776, enclosing requested errata to a book being written on the work and observations of Abbé de Lacaille.

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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.

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An undated photostat of a letter in French from Joseph de Lalande to Nevil Maskelyne, 10 August 1787, presenting Giuseppe Piazzi to him on a visit to England.

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An undated photostat of a letter in French from Joseph de Lalande to Nevil Maskelyne, 20 July 1787.

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An undated photostat of a letter in French from Monsieur Jeaurat to Nevil Maskelyne, 16 November 1775, informing him of his interest in Maskelyne's work on the attraction of mountains and his disagreement with J. de Lalande's publishing of the work. He proceeds to describe a series of public lectures that he has attended recently on subjects ranging from early astronomy to the use of saltpetre.

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

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An undated photocopy of part of a letter from Nevil Maskelyne to Charles Hutton, 20 June 179[ ], commenting on the contribution to a debate on mathematics by Joseph de Lalande, and stating that he is a far better astronomer than mathematician.

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...

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An undated photostat of a letter from Nevil Maskelyne to Sir Joseph Banks, 9 May 1803, informing him that an instrument being made by Brinkley is not yet complete and that he has been told by Joseph de Lalande that Mechain has set out to make observations on the island of Majorca.

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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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Correspondence regarding various astronomical and nautical tables.

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An undated photostat of a short note in French from Joseph de Lalande to Nevil Maskelyne, 27 August 1788, informing him that he has returned from a voyage and asking Maskelyne to look at the December 1690 observations of the star 34 Tauri in order to see if they meet with his approval.

Scope and Contents Papers relating to computing, observational method and instructions.1. 'To find the variation of the declination of the Moon between the transit of her limb and that of her centre', and to find the Moon's semi-diameter in right ascension. There are two copies, dated 20 April and 3 August 1800.2. 'From the right ascension of the Moon's first or second limb or centre and the observed zenith distance of her upper or lower limb or centre deduced from observation and corrected for...