Bound volumes of printed Greenwich Heliographic Results, covering the years 1892-1957. Most contain multiple issues of printed results of measures made at the Royal Observatory, Greenwich, of photographs of the Sun taken at Greenwich, the Cape, and Kodaikanal/Mauritius, with additions such as printed ledgers of sunspot groups. The volumes are numbered 6-29. Numbers 1-5 are not extant.

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.

A fair copy of a Catalogue of Stars Visible on the Horizon of Calcutta, drawn up by J. W. F. Herschel to accompany the ten feet reflecting telescope sent to his relations including medical doctor, Duncan Stewart, eldest brother of Lady Margaret Herschel, employed by the East India Company, 1825-1855.

An incomplete series of ING Technical Notes.

20 volumes of typed or photocopied texts bound with green covers, with 14 duplicate copies. The following abbreviations are used in the titles: ISIS: Intermediate Dispersion Spectroscopic Imaging System; LDSS: Low Dispersion Survey Spectrograph; WHT: William Herschel Telescope; INT: Isaac Newton Telescope; MPF: Multi Purpose Fotometer; ADAM: Astronomical Data Acquisition Monitor; and CCD: Charge-coupled device.

Notes by John Parnther of Peterhouse College on a series of lectures given at Cambridge University. Lectures by N. Saunderson and Robert Smith on hydrostatics, sounds, optics, mechanics, astronomy, the tides, technical chronology, dioptrica and catoptrica.

A set of handwritten manuscripts by John Russell Hind on the History of Comets. At least two were written while Hind worked at Greenwich (1842: RGO 209/6-7).

The festschrift is 'Vistas in Astronomy' edited by Arthur Beer of Cambridge Observatories.

This journal is fully indexed. It contains Franklin-Adam’s work and memoranda from June 1897 to 23 June 1906. Readings and observational data form the main content. It also includes detailed accounts of adjustments and corrections to the Equatorial Telescope, Transit Circle, Azimuth, Cape Town Instruments, chronometers and clocks. A preface describes his observatory and instruments.

This series comprises four folders of letters sent by Lady Clive to her brother Nevil Maskelyne, her niece Margaret Maskelyne, and to other family members. The letters span 55 years, from 1762 until Lady Clive's death on 28 Dec. 1817. Many mention astronomy, including sightings of the great comet of 1811.
The series also includes a set of copies of family letters (including some written by Nevil Maskelyne), and notes by Theresa Story-Maskelyne on the letters of Lady Clive.

There was a Richard III exhibition in London at which the Lady Margaret potrait was displayed. Peck observed the planet Venus.

The letter accompanied a copy of Newton's 'Principia'. It explains the nature of the work, and especially the theory of tides. It begins 'May it please, &c. I could not have presumed ...', and concludes 'I doubt not but if your Majestie shall please to suffer me to be admitted to the honour of your presence I may be able to give such an account thereof as may be to your Majesties full content. I am, &c., Edmond Halley'.

Concerning calculations of the time of the lunar eclipse of 3 April [AD] 33 [and its identification as eclipse recorded as occurring on the day of the crucifixion of Jesus Christ].

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

The log book of HMS Adventure compiled by W. Bayly during his passage to the South Seas as part of the expedition led by Captain James Cook in HMS Resolution.