Correspondence concerning the clock for the New Palace at Westminster. The correspondents include A. de Morgan, J.F.W. Herschel, W. Whewell and F. Dent. The papers includes pages extracted from the 'Mechanics' Magazine'; pages and two diagrams extracted from 'The Builder'; a paper by E.T. Loseby 'on the Westminster Clock'; and a paper by W.L. Baker on 'the Great Bell of Westminster'. There are also several musical calculations of the notes made by the bell in the New Palace.

Correspondence with the following members of the Standards Commission: F. Baily, C.R.D. Bethune, F. Gilbert, Sir J.F.W. Herschel, Sir J.W. Lubbock, J.G.S. Lefevre, W.H. Miller, the Marquis of Northampton, the Revd G. Peacock, the Revd R. Sheepshanks and Lord Wrottesley. The volume includes copies of printed papers from the Standards Commission and several diagrams of spirit barrels.

Correspondence with the following members of the Standards Commission: Sir J.F.W. Herschel, J.G.S. Lefevre, Sir J.W. Lubbock, J.C. Miller, the Revd G. Peacock, the Earl of Rosse, the Revd R. Sheepshanks and Lord Wrottesley.

Correspondence on the positions of stars, with their errors, new discoveries, comparisons of star places (i.e. with the Tabula Regiomontana) and the motion of variable stars. The correspondents include F. Baily, Sir F. Beaufort, J.F.W. Herschel, J. Glaisher, R. Sheepshanks, W.H. Smyth, T. Galloway, W.S. Stratford, J.R. Hind, W.R. Dawes, Sir G. Everest and W. Lassell. The papers also include various parts of star catalogues.

Vouchers of Dr Thomas Young for payments to tradesmen and others. Also includes occasional correspondence.

Vouchers of Dr Thomas Young for payments to tradesmen and others. Also includes occasional correspondence.

General correspondence with, among others, the Duke of Norfolk; the University of Newcastle-upon-Tyne; 'Nature'; the Revd Father D.J.K. O'Connell, S.J., Specola Vaticana, Castel Gandolfo, Rome; the University of British Colombia; and the University of Newcastle, New South Wales. The subjects include Sir Richard Woolley's review of 'The Journal of Charles Mason and Jeremiah Dixon' and of 'Herschel at the Cape: Diaries and Correspondence of Sir John Herschel'.

Correspondence, letters A-L, regarding pendulum experiments at Harton, including a letter to the Academie des Sciences, correspondence with the Admiralty, and correspondence with, among others, J. Anderson, G.A. Biddell, J.R. Hind, R.C. Carrington, Professor J. Challis, G.S. Criswick, E. Dunkin, W. Ellis, Professor M. Faraday, J. Glaisher, E. Green, Sir John Herschel, Lt Col. James and M.J. Johnson.

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.

Two letters, 9 March 1828 and undated [1828] re invitations and astronomical entertainments.

Sent by Francis Beaufort to John Pond.

On assisting [William] Richardson in reducing the observations taken at Parramatta Observatory under Sir Thomas Brisbane.

Letter written on behalf of his aunt [Caroline Herschel] thanking him for sending a letter on her 95th birthday and sheets of his new astronomical ephemeris ‘Uranus’, and also discussing Halley’s Comet.

Concerning the publication of Cape observations by Fallows and Maclear; the accuracy of the transit clock; the expansion of the Cape Observatory; observations of Halley's Comet, 1-24 September 1835; C. Piazzi Smyth's suitability as an assistant; and Brisbane’s Cape Catalogue. The people mentioned include G.B. Airy, R. Sheepshanks, Captain Beaufort, W.G. Grey, F. Fallows, Sir John Herschel and C. Piazzi Smyth.

Concerning Baily's 'Life of Flamsteed'; the arrangement of constellations in the southern hemisphere; the measurement of stellar magnitudes; the calculation of right ascension and declination without errors; and observations of Halley's Comet from 24 January 1836 onwards. The people mentioned include Sir John Herschel, T. Henderson and Captain Beaufort.

Concerning a proposed visit of the Revd Adamson to Sir John Herschel; Maclear's continuing work on the Abbe de Lacaille; stellar observations; and the erection of an obelisk in honour of Sir John Herschel. People mentioned include the Revd Adamson, Sir John Herschel, the Abbe de Lacaille, J.D. Forbes and T. Henderson.