Scope and Contents Miscellaneous astronomical methods concerned primarily with the altazimuth and equatorial telescopes and the construction of piers for the transit circle, and mentioning mirrors, lenses and barrel and pendulum clocks. The correspondents include T. Barnaby, W.C. and G.P. Bond, I.K. Brunel, W. De La Rue, C.P. Smyth, C.A.F. Peters, J.T.R. Robinson, C. Wheatstone, J. Challis, E. Dunkin, M. Faraday, T. Grubb, W. Lassell, O.M. Mitchel, Lord Rosse and W. Simms. The volume includes a photograph of a...

Scope and Contents Correspondence concerning new ideas on navigation, trials of existing equipment, the Greenwich transit circle and altazimuth, the purchase of a new telescope for New Zealand, and the sale of other instruments. The correspondents include E.J. Stone, W.H.M. Christie, W. De La Rue, E. Dunkin, A. d'Abbadie and Sir H. Grubb. There are papers by L.M. Rutherford on a glass circle for the measurement of angles; writing by G. Davidson on mechanical defects in micrometers; material on Sumner's method...

Scope and Contents Correspondence concerning astrographic equatorials for the Greenwich and Cape observatories:Official and unofficial correspondence with the Admiralty concerning the photographic mapping of the heavens, the transfer of the telegraphic wires to the Post Office, and the extra expense of re-determining the longitude between Paris and Greenwich telegraphically, 1887.Official and unofficial correspondence with the Hydrographer of the Navy, A. Milner and Sir Howard Grubb concerning...

Scope and Contents Correspondence concerning the supply of a new canvas wind screen for the South East Dome, 1908.Correspondence with Ewart and Son concerning the copper ribs for the Lassell Dome, 1896.Correspondence with T. Cooke and Sons and the Director of Works concerning the removal of the Lassell Dome, 1894.Correspondence with Sir Howard Grubb concerning an accident to the Astrographic Dome and the supply of a new shutter, 1894-1895, with two black and white photographs depicting...

Scope and Contents Miscellaneous correspondence regarding astrographical instruments, heliographs and micrometers, including the following material:Correspondence with Sir Harold Grubb and Sons on the repair of the clock of astrographic equatorial, 1919-1920.Correspondence with Professor Turner on the supply of a réseaux, and with Cooke, Troughton and Simms on a photoheliograph, 1915-1925.Correspondence with the Mount Wilson Observatory on a spectrohelioscope,...

Scope and Contents (1) General correspondence, 1891-19051891: E.P. Sealey's request for a transit of Venus negative.1892: Lane and Oscar's request to be allowed to buy photographs; W. Brookes on matter required for a photographic talk; E.P. Ridley on apparatus for a spectrum experiments; and A. Berry and J.R. Clapham's request for solar positions.1893: Correspondence with A.A. Common and the Royal Astronomical Society regarding photographs for the World Fair in Chicago; D. Riordan's...

Scope and Contents

Correspondence (chiefly copies) between C.P. Smyth and Sir H. Grubb on the Edinburgh Equatorial Telescope and a spectroscope. The letters cover the contract for the work, its construction and specification, and disagreement between the two parties as to whether the contract had been adequately fulfilled. Airy was the initial arbitrator, but W.H.M. Christie was finally appointed to resolve the controversy. There are also plans for the spectroscope.

Scope and Contents Correspondence regarding accounts held with various instrument-makers:Correspondence with Troughton and Simms, 1898-1909, including a summary of the annual cost of cleaning instruments.Correspondence with the Improved Electric Glow Lamp Company concerning the re-silvering and polishing of mirrors, 1899-1900.Correspondence with Victor Kullberg concerning an estimate for the cost of repairs to Osler's anemometer, 1903.Correspondence with Peter Heele,...

Scope and Contents Letters from various British and international observatories on filling vacancies, an enquiry into the transfer of Edinburgh Observatory, requests for new instruments, and the current state of work carried out at various centres. The correspondents include Sir H. Grubb, Lord Lindsay, C.P. Smyth, L. Mallet, Sir C.R. Markham, G.G. Stokes, N.R. Pogson, R.L.J. Ellery, W. De La Rue, C. Pritchard and F.A.T. Winnecke. There are numerous reports from observatories at Adelaide (1875), Dearbourne...

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 Papers regarding the trial of telescopes, binoculars, mirrors, gun directors, etc., for the Royal Navy:Letter from the Admiralty, 1885, asking that the Astronomer Royal draw up a specification for telescopes for automatic sights of turret guns, so that the purchase may be put out to competitive tender.Form for the forwarding of a pattern of a gun director (pattern 306, registration no. 27) from Portsmouth, 1885.Blank form for use in tendering estimates for the...

Scope and Contents Papers regarding appointments, regulations and salaries:(1) Enquiries and applications for employment as assistants at the Royal Observatory, 1900-1913. The applicants are:1900: F. Taylor.1904: H.J. Bellamy, E.G. Constable, W.A. Holmes and C. Egerton-Wragge.1905: T. Kimber and E.W. Metcalfe.1906: C.G. Browne, C.E. Wright, B.A. Bull and A. Andrews.1907: E. Carpenter, T.C. Wetton, R. Coombes and R.H.C. Christman.1908: The Revd M....

Scope and Contents Correspondence with T. Lewis and E. Dent and Co. concerning repairs to clocks and correspondence with W.H. Shepherd, 1888-1889.Correspondence with Victor Kullberg concerning the tender for the supply of new electric dials and the repair of old ones, 1897-1899.Correspondence with clockmakers, principally V. Kullberg and Dent and Co., concerning repairs to Royal Observatory clocks and chronometers, 1901-1911.Internal memoranda on the subject of clocks, chronographs and...

Scope and Contents 1. SpectroscopesVarious memoranda concerning spectroscopes, 1901-1925.1. 'Spectroscope', 21 September 1901.2. 'Spectroscope', 23 September 1901.3. 'Photographic Spectroscope', January 1900.4. 'Photographic Spectroscope', 14 October 1901.5. 'Christie's direct-vision "half prism" spectroscope'.6. 'Wave lengths of spectrum lines'.7. 'Standard Wavelengths', 1922 (printed).8. 'Report on Pure Carbon Electrodes', 1925.2....

Scope and Contents Papers concerning instruments not held by the Royal Observatory:Extract from 'Engineering', 16 December 1887, describing various telescopes by Grubb.Correspondence concerning telescopes and other instruments, 1888, including the Army and Navy Stores asking for the verification of a sextant; the Horological Institute seeking the verification of a transit circle; Baron Rothschild asking for Royal Observatory staff to go to York to oversee a telescope being constructed; F.H....

Scope and Contents Papers on adjustments, tests, trials, performances and purchase of facilities and equipment for the Royal Observatory, including adjustments to the transit circle and its errors, collimation observations, intervals of wires and corrections; removal and installation at Greenwich of the Lassell Reflector; construction of a dome for the 18 foot telescope; performances of spectroscopes, including one drawing; photoheliographs; chronographs; the new sidereal clock; the chronometers the Brockbanks...

Scope and Contents Correspondence with the Admiralty concerning estimates for the cost of producing the New Refracting Telescope and Dome, including applications to the Treasury for the necessary funds, 1885.Correspondence with Sir Howard Grubb concerning the production of the 28" refracting telescope, including copies of the first, second, third and final claims for instalments of payment, 1886.Correspondence with Sir Howard Grubb concerning the cost of erecting the New Refracting...

Scope and Contents Correspondence with the Director of Works concerning the building of the New Altazimuth Dome, 1892.Correspondence with the Admiralty concerning the contract for the building of the New Altazimuth Dome, 1894-1895.Correspondence with Sir Howard Grubb concerning the contract for the New Altazimuth Dome, 1895.Bills and accounts from Grubb for the building of the New Altazimuth Dome, 1895-1896.Correspondence with Grubb on the progress of the building of the New...

Scope and Contents Correspondence and papers regarding preparations for the exhibition of astronomical instruments and models at the Paris Exhibition of 1855. The correspondents are Lord Wrottesley, L. Playfair, E. Dunkin, T. Cooke, T. Grubb, U.J.J. Le Verrier, C.L. Mathieu, A. de Morgan, R. Ransome, W. De La Rue, the Earl of Rosse, C.P. Smyth, W.H. Smyth and H. Cole. There are papers concerning the sub-committees for the British exhibits and arrangements for the transportation of the exhibits, and two letters...

Scope and Contents Correspondence with the Admiralty concerning the cost of the South East Dome, 1890. Correspondence concerning the expenses of the Astronomer Royal and a claim from Cooke and Son for part payment for the construction of the South East Dome, 1893.Correspondence on the dismantling of the South East Dome, applications for tenders, tenders, and letters of acceptance, 1891.Sir Howard Grubb's plans for the machinery in the Dome, 1891.Notes and memoranda concerning...

Scope and Contents Correspondence with the Admiralty concerning the acceptance of Sir H. Thompson's offer of a 26-inch reflecting telescope for £5000, 1894.Correspondence with Sir H. Thompson concerning alterations to the 26-inch reflector and its transfer to the Royal Observatory, 1893-1899.Copies of correspondence between Sir Howard Grubb and A.A. Common concerning alterations and tests relating to the 26-inch reflector, 1895-1899.Correspondence with Troughton and Simms concerning the...

Scope and Contents 'Observations for the determining of the focus of the South East Equatorial for different rays', 1882-1888.Sixteen undated pages of calculations titled 'Correction of chromatic aberration for photographic rays by convex flint lens and concave crown lens placed within principal focus'.Undated sheet of calculations on the separation of the lenses of an object glass.Three undated sheets of calculations on the correction of an object glass for photographic rays by the...

Scope and Contents Correspondence with Sir Howard Grubb concerning the contract for the construction and erection of the Thompson Equatorial Telescope, including:1. Estimate for the cost of the construction of the telescope.2. Copy of the specifications for the telescope.3. Two black and white photographs of the model of the Thompson Equatorial Telescope, sent to the Astronomer Royal by Sir Howard Grubb, 26 March 1894.4. Correspondence concerning alterations to the...

Scope and Contents

Red bound volume of 19 printed scientific papers by Howard Grubb, each presented or published between 1878-1905. The volume begins with a handwritten index.

Scope and Contents

Red bound volume of 33 printed scientific papers primarily by Howard Grubb and Thomas Grubb, but also by Warren de la Rue and others, each presented or published between 1857-1905. The volume begins with a handwritten index.