Scope and Contents From the Fonds:

The Macclesfield Collection principally comprises the archives of John Collins (1625-1683) and William Jones (1675-1749). As well as being mathematicians in their own right, both men corresponded with leading scientific figures of their day and so the collection includes autograph material by Isaac Newton, Edmond Halley, Henry Briggs, Roger Cotes, Henry Oldenburg and Robert Hooke.

Scope and Contents From the Sub-Fonds:

Early drafts of the Principia and related notes; additions, corrections and revisions to the Principia. This is the 'general' category: papers relating specifically to lunar theory or containing mathematical problems are classified separately.

Scope and Contents Correspondence with the Admiralty concerning money grants and salaries:Correspondence between Airy and the Admiralty on the excess of outlay over estimate for 'the Xmas Quarter 1848', 1849.Letters of approval, 1849, for Airy's scheme for the payment of salaries, etc., for the financial year 1849-1850.Letters concerning the increased payment to the Kent Waterworks for a constant supply of water at a high pressure, 1849.Letter from Airy to the Admiralty, 1850,...

Scope and Contents

A critique of Henry Dodwell's 1701 treatise on biblical chronology entitled "De Veteribus Graecorum Romanorum Cyclis."

Scope and Contents Various letters and copies of the royal appointments of the Astronomers Royal.1. Letter from the Royal Society, 5 March 1713, requesting the 1712 observations.2. A copy of the official royal appointment of Nevil Maskelyne as Astronomer Royal, with the signature of the Earl of Sandwich.3. A copy of the official royal appointment of James Bradley as Astronomer Royal, with the signature of Holles Newcastle.4. A copy of the royal warrant for employment and payment...

Scope and Contents Undated astronomical computations, tables, rules and observations, including:1. The rules for finding the constant number to be added to the longitude of the Moon to find the argument of deviation in regard to specified stars.2. Rules for finding the aberration of a star in longitude, latitude, right ascension and north polar distance.3. Stars in the British Catalogue.4. To find the nonagesimal degree and its altitude with reference to various...

Scope and Contents

Tables of altitudes at Cambridge, Eustachio Zanotti's observations of the transit of Venus of 1761, parallax of the Sun by transit observations, 'Halley's problem', and the problems of converting from heliocentric to geocentric longitudes.

Scope and Contents Work on Mars and other planets; notes about a clock (341v), micrometer trials (342v-346r), optics (348r, 349r) and a barometer (351r); work on lunar and solar parallax (352v-359r, 360v-364r); a brief Latin treatise by Flamsteed, 'De motu Solis et numeris corrigendis' ('On the Sun's motion and numbers to be corrected') (363v); work on lunar problems (366v-370v); and a copy of an extract of a letter to Edmond Halley about refractions and the height of the atmosphere, 1675 (369v-370r). The...

Scope and Contents From the Fonds:

The Portsmouth Collection is the principal collection of Isaac Newton's scientific and mathematical papers, including early drafts of the Principia, and his correspondence with Oldenburg, Halley Flamsteed and many of the other most prominent scientists of his day.

Scope and Contents

An undated copy of Edmond Halley's catalogue of southern stars (206r-216r), differing from the published version [1679], with rough calculations relating mostly to eclipses (204v-205r, 217r-244r). The catalogue is undated, but the calculations refer to dates up to 1718. The writing is in Halley's hand.

Scope and Contents An untitled compilation of notes and other papers on a range of subjects, 192 folios. The earlier part of the book is in Flamsteed's hand, but the hands of assistants and unidentified pupils appear with increasing frequency thereafter. There is a two-part contents page by Flamsteed.The volume includes various observations: of solar altitude, made in New England [by Thomas Brattle] (21rv); of an occultation and lunar eclipse by Johann Hevelius, 1681-1682 (22r, 28v-30v); of comets,...

Scope and Contents

Title on spine is "Halley's Compendium Logicae & Ethicae."

Scope and Contents An undated compilation of observations made between October 1671 and November 1676, in Flamsteed's hand, 59 folios. The volume includes observations of solar and lunar diameters (6r-12r), and of the Pleiades (14r-16r); observations made at the Tower, April-July 1675 (17r-21r), and at the Queen's House, Greenwich, September-December 1675 and March-November 1676 (20v-24v, 33r-52r); and 'Maculae sub Sole obser-vatae Historia' ('An account of sunspots observed', 53v-57r). There are also notes...

Scope and Contents Computations of the positions of the Sun, Moon and planets. The calculations were performed by Reuben Burrow between 24 August 1762 and 3 March 1765. 1. Sun's declination and obliquity.2. Computation of the Sun's longitude and latitude from right ascension and declination as compared with 'Connaissance des Temps'.3. Computation of the Sun's longitude from Johann Mayer's tables.4. Mean times of the meridian transits of the Moon.5. Mean times of the...

Scope and Contents Computations of the positions of the Sun, Moon and planets performed by William Bayly and Reuben Burrow from observations taken when Nathaniel Bliss was Astronomer Royal.1. The Sun's right ascension and declination, clock errors, and longitude and latitude derived from observations and Johann Mayer's tables for 11 May 1765 to 10 May 1767.2. Moon's right ascension and declination, clock errors, and longitude and latitude derived from observations and Mayer's tables for 31 May...

Scope and Contents

Possibly autograph. Includes a letter from Bouguer and Condamine to Edmund Halley.

Scope and Contents Minutes of Board of Longitude meetings regarding, among other matters, discussions on John Harrison's first marine chronometer (H1); the purchase of new instruments for work on the longitude and latitude of the coasts of Britain; improvements to the reflecting telescope; Tobias Mayer's lunar motion tables; the trial of John Harrison's chronometers; errors in the tables of the satellites; Schutz's machine for finding longitude; Chistopher Irwin's marine chair; the use of lunar observations...

Scope and Contents From the Fonds:

The Portsmouth Collection is the principal collection of Isaac Newton's scientific and mathematical papers, including early drafts of the Principia, and his correspondence with Oldenburg, Halley Flamsteed and many of the other most prominent scientists of his day.

Scope and Contents

Unknown hand, later annotated by Jones

Scope and Contents From the Fonds:

The Portsmouth Collection is the principal collection of Isaac Newton's scientific and mathematical papers, including early drafts of the Principia, and his correspondence with Oldenburg, Halley Flamsteed and many of the other most prominent scientists of his day.

Scope and Contents

Five letters

Scope and Contents From the Fonds:

The Portsmouth Collection is the principal collection of Isaac Newton's scientific and mathematical papers, including early drafts of the Principia, and his correspondence with Oldenburg, Halley Flamsteed and many of the other most prominent scientists of his day.

Scope and Contents From the Fonds:

The Portsmouth Collection is the principal collection of Isaac Newton's scientific and mathematical papers, including early drafts of the Principia, and his correspondence with Oldenburg, Halley Flamsteed and many of the other most prominent scientists of his day.

Scope and Contents From the Fonds:

The Portsmouth Collection is the principal collection of Isaac Newton's scientific and mathematical papers, including early drafts of the Principia, and his correspondence with Oldenburg, Halley Flamsteed and many of the other most prominent scientists of his day.

Scope and Contents Seven notebooks, now bound together into one volume, written in various hands. The contents include sermon notes (299r-308v); clock notes in the hands of Flamsteed and Edmond Halley, 1675-1676 (310r-331v); 'Mr Flamsteed's New Table of Refractions', with mathematical notes by Margaret Flamsteed (332r-353v); Flamsteed's notes on a transit of Mercury, 1677, and other observations by Richard Towneley (354r-361v); Jonas Moore's summaries of correspondence between William Crabtree and William...