Scope and Contents Correspondence with Airy and W.H.M. Christie concerning new astronomical techniques; requests for instruments and information; the testing of various instruments, such as a siderostat, telescopes and a driving clock; and the finding of the longitude. The correspondents include W. De La Rue, W. Huggins, S.P. Langley, Sir R.S. Ball, R.L.J. Ellery, E.K. Abbe, H.H. Turner and various lesser known scientists. There is a photograph of a negative of a plan of Flamsteed's equatorial sector, a...

Scope and Contents

Personal and business cards of visitors to the Royal Observatory, including L.M. Rutherford, J.C. Watson, G. Davidson, S.P. Langley, H. Draper and A.S. Herschel. A large proportion of the cards belonged to foreign visitors.

Scope and Contents Correspondence and related papers on the time signal and time ball service, including the failures of the Greenwich time signal; requests for information on time balls; the establishment of time balls or guns at Queenstown, Sheffield, Bristol and Manchester; a paper by S.P. Langley 'On the Allegheny system of electrical time signals'; experiments with the Post Office chronopher; corrections and errors of the Post Office and Westminster clocks; the system of operation employed by the London...

Scope and Contents (1) Correspondence, 1834-1895Correspondence regarding J.C. Adams and other subjects, as follows:Index to correspondence, 1895.C. Taylor's suggestion of a memorial to J.C. Adams at Westminster Abbey, 1892.D. McAlister's proposal for a publication of J.C. Adams's papers, with lists of important correspondence, 1892-1893.Notes on correspondence in the Royal Observatory records regarding the search for Neptune, 1834.Notes from J.F.W. Hershel's...

Scope and Contents Miscellaneous articles on scientific matters, including a paper by E.M. Peligot believed to be concerning Mars; a catalogue of electrical instruments; J.C. Ward on the geology of the Lake District; examinations of Navy telescopes; plans and dimensions for telescopes; A. Krank's improved manufacture of parabolical reflectors; 'Colour correction of achromatic telescopes' by W. Harkness; 'Testing of object-glasses' by G.W. Royston-Pigott; an article titled 'Lights, beacons, and buoys', from...

Scope and Contents Miscellaneous scientific works and routine instructions, including a paper by C.S. Benson on geometry as a science; a piece on the transit of Venus in 'Bell's Weekly Messenger'; writing in an exercise book by J. Gillespie on the motion of the Earth; laws of rotation; minutes of the Paris conference on standards for electrical units, 1884; 'the new electrical era in science' by G.W. Royston-Pigott from 'The Eastbourne Standard'; various earthquakes; M.A. Cornu's optical achromation and...

Scope and Contents Correspondence and papers concerning galvanism and electric clocks. The correspondents include C.V. Walker, A. Clarke, J. Muirhead, F.I. Scudamore, C. Wheatstone, C.E. Delaunay and S.P. Langley. The papers include a diagram of the gate of the electric clock at London Bridge, 6 December 1872; an extract from 'The Glasgow Daily Herald', 27 January 1866, on electric clocks and electrometers; an extract from 'The Royal Leamington Spa Courier', 17 March 1866, on C.T. Bright's electric clock;...

Scope and Contents Correspondence relating to the missing volume of minutes of the Board of Visitors for the years 1784 to 1830. There is also correspondence on the extraction of minutes relating to the Royal Observatory from the Council Minutes of the Royal Society. The letters date from 1861.Letter and notes on the burial place of John Flamsteed, 1863.Note by J. Carpenter concerning the 'Old Equatorial', 1864.Memorandum concerning the supposed location of James Bradley and Nevil...

Scope and Contents Miscellaneous scientific works concerned with the appliance of photography to astronomy, including tables for the conversion of millionths of an atmosphere to millibars; a paper by R. Applegarth on the feasibility of public street lighting by electricity; a report on the extension of ocean telegraphs in South Australia; articles on the earthquake of 28 January 1878; inspection of Navy telescopes; notes on lamps for lighthouses; inequalities of angles of incidence and reflection illustrated...

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Printed photograph.

Scope and Contents From the Series:

A collection of loose portrait plates, chiefly of astronomers, printed from engravings, drawings and photographs. The portraits are arranged alphabetically by surname of the sitter. Alongside astronomers, sitters include physicists, mathematicians and other scientists of note. The collection also includes a single portrait of King Charles II, an RGO staff photograph, and a book of portraits of astronomers.