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 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 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 A guardbook of letters received by Flamsteed, with some drafts of replies and some copies of both, 163 folios. The correspondents are mainly in the English provinces, although some write from abroad, and there are also original letters from Flamsteed to Sir Jonas Moore. The letters date primarily from 1671 to 1719, but a few are either undated or possibly earlier. Apart from those to Moore, most of the letters are of the eighteenth century. Many of the sheets have rough arithmetical notes on...

Scope and Contents From the Fonds:

Transcripts of mathematical and astronomical letters and papers, apparently made for the use of Isaac Newton, in various hands. Included are copies of works by R.F. Slusius, Antonio Monforte, Jacques Ozanam, G.W. Leibnitz, E.W. von Tschirnhaus, Henry Oldenburg, T.F. de Lagny, G.D. Cassini, John Craig and S. Morland.

Scope and Contents An untitled volume of copies of Flamsteed's correspondence, February 1676 - February 1679 and March 1712, with some undated letters and Flamsteed's notes, 81 folios. Some of the copy letters are in Flamsteed's hand, but most are by amanuenses. The correspondents include (through Henry Oldenburg) J.D. Cassini, 1676-1679; Johann Hevelius, 1676-1678; Ismael Bullialdus [Boulliau], 1676; Edmond Halley; Charles Boucher (including a description to Halley of his voyage to Jamaica); Richard...

Scope and Contents A commonplace book of lunar calculations, c. 1684 (85r-182v, with a guide at 183v-184r); copy letters, 1679-1700; and notes; 193 folios. The writing is in Flamsteed's hand, with the exception of the letters, which are copied in various hands, but sometimes bear Flamsteed's corrections.The letters are comprised of correspondence with Johann Hevelius, 1679-1685; letters from Edmond Halley, 1679; correspondence with Olaus Römer, 1679; letters to Seth Ward, 1679; letters to Edward...

Scope and Contents Papers on comets and other subjects.1. 'Observations upon the Comets that appeared in the months of September and October 1757', with reference to unnamed stars and observational technique, including an acknowledgement to Dr Smith's three volumes on optics.2. Observations to ascertain the 1757 comet's right ascension, its position relative to the Earth and other stars, and its declination, with attendant calculations.3. Table of observations of the 1759...

Scope and Contents An annotated copy of Porter's script for 'The Night Sky in April' on the astronomers of the past and the discovery of the rings and satellites of Saturn; Leo, Spica in Virgo with Saturn to the east, and the appearance of Saturn in a telescope; the quality of early telescopes, such as those of Galileo and Huygens; Huygens's telescope, his observation of Saturn and discovery of Titan, the largest moon of Saturn, Cassini discovering four moons and Herschel discovering two more; the arrangement...