Maclear, Thomas, Sir, 1794 - 1879 (Knight, astronomer)
Person
Found in 102 Collections and/or Records:
File
Correspondence on comets, 1853 - 1855
Reference Code: GBR/0180/RGO 6/95
Scope and Contents
Correspondence on comets observed between 1853 and 1855, including Secchi's Comet (1853); the Southern Comet (1853); Klinkerfeus's first and second comets (1853-1854); and the Second Comet of 1854. The correspondents are largely interested amateurs forwarding their own observations with a few theories on comets, but also include O. Struve and J.R. Hind. The volume includes T. Maclear's South African observations, the time of return to perihelion of comets and newspaper articles on recent...
Dates:
1853 - 1855
Conditions Governing Access:
From the Management Group:
Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).
File
Correspondence on comets, 1856 - 1858
Reference Code: GBR/0180/RGO 6/96
Scope and Contents
Correspondence on comets, including the Comet of 1556; Comet of 1811; Bruhn's Comet, Encke's Comet; Brorsen's Comet (1857); Klinkerfeus's Comet (1857); the fifth and sixth comets of 1857; the eight comets of 1858; and Fayé's Periodical Comet. The correspondents are a mixture of international astronomers and amateurs, forwarding observations and making requests. They include J.R. Hind, T. Chevallier, G.S.G. Santini, J. Challis, R. Grant, Y. Villarceau, J.J. von Littrow, J.F. Encke and W.C....
Dates:
1856 - 1858
Conditions Governing Access:
From the Management Group:
Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).
File
Correspondence on instruments, 1849 - 1854
Reference Code: GBR/0180/RGO 15/93
Scope and Contents
Correspondence of G.B. Airy and related papers under the heading 'Cape Observatory and Survey 1849 to 1854. Instruments', divided into thirteen sections:Notes on the barometer used by Henderson.Letters from G.B. Airy to W. Dolland regarding an eyepiece and level for the Cape Transit, 1850-1851.Sir J. Herschel's recommendation for the erection of a transit circle at the Cape, 27 December 1851.Correspondence with the Admiralty regarding the transit circle,...
Dates:
1849 - 1854
Conditions Governing Access:
From the Management Group:
Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).
File
Correspondence on magnetic observations, 1834 - 1848
Reference Code: GBR/0180/RGO 6/675
Scope and Contents
Correspondence on magnetic observations, including papers on the establishment of a Magnetic Observatory in Greenwich Park and the benefits to astronomers of this research; specifications and accounts for the Observatory building; functions of the Magnetic Observatory and the provision of staff and equipment; extracts from Royal Society correspondence and minutes on magnetism and meteorology; a report on a letter by F.W.H.A.V. Humboldt concerning magnetic observations; the report of the...
Dates:
1834 - 1848
Conditions Governing Access:
From the Management Group:
Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).
File
Correspondence on observatories, 1834 - 1847
Reference Code: GBR/0180/RGO 6/140
Scope and Contents
Correspondence and requests for advice relating primarily to the establishment of observatories in various localities, including in North America. There are also letters concerning University Chairs and correspondence with the Treasury on financial matters. The correspondents include the Duke of Northumberland, M.J. Johnson, S.H. Christie, R. Sheepshanks, Sir T.M. Brisbane, W.S. Stratford, W.H.C. Bartlett, J. Glaisher, J.P. Nichol, J.W. Lubbuck, J.Q. Adams, J.M. Gillis, J.D. Forbes, C.P....
Dates:
1834 - 1847
Conditions Governing Access:
From the Management Group:
Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).
File
Correspondence on the Cape Observatory, 1845 - 1848
Reference Code: GBR/0180/RGO 15/92
Scope and Contents
Correspondence entitled 'Cape Observatory and Survey 1845 to 1848. Printing 1839-1848', divided into ten sections:'Fallows's Observations and Henderson's Observations': correspondence between G.B. Airy, T. Maclear and the Admiralty, including a list compiled by C.P. Smyth of Henderson's Cape manuscripts, dated 24 July 1847.Papers relating to assistants at the Cape Observatory, 1846.'Instruments for the Cape Observatory': correspondence, 6 March 1846 - 19 April 1848,...
Dates:
1845 - 1848
Conditions Governing Access:
From the Management Group:
Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).
Sub-Series
Correspondence on the Cape Observatory and Survey, 1849 - 1854
Reference Code: GBR/0180/RGO 15/94
Scope and Contents
Correspondence and related papers concerning the Cape Observatory and Survey, divided into six sections:'Correspondence on the Cape Observatory excepting generally the Cape Survey'. Comprises general correspondence between G.B. Airy, T. Maclear and the Admiralty, 28 February 1849 - 9 December 1854, regarding the Cape Observatory, including the preparation of annual reports, general information on the progress of work, the burning down of the Magnetic Observatory and observations of...
Dates:
1849 - 1854
Conditions Governing Access:
From the Management Group:
Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).
File
Correspondence on the Cape Observatory and Survey, 1855 - 1870
Reference Code: GBR/0180/RGO 15/95
Scope and Contents
A set of correspondence entitled 'Cape Observatory and Survey 1855 to 1870 July', divided into eight sections:General correspondence and papers regarding the Cape Observatory and Cape Survey, 9 April 1855 - 20 July 1870, comprised largely of correspondence between T. Maclear and G.B. Airy. There are letters regarding Encke's Comet; general reports on Observatory business; letters on the Cape Survey; a printed copy of 'Observations of Zenith Distances with the Transit Circle, 1855';...
Dates:
1855 - 1870
Conditions Governing Access:
From the Management Group:
Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).
File
Correspondence on the Observatory, 1827 - 1845
Reference Code: GBR/0180/RGO 15/28
Scope and Contents
Correspondence and some related papers regarding different aspects of the work and the instruments at the Cape Observatory, together with the Cape Survey, divided into five sections:N1. Cape Observations, General:Official Instructions to the Cape Astronomer, containing letters of instruction to F. Fallows and T. Maclear.Observations of Mauvais' Comet by Maclear at the Cape of Good Hope, August-October 1844.General correspondence with Maclear, including letters...
Dates:
1827 - 1845
Conditions Governing Access:
From the Management Group:
Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).
File
Correspondence on the Southern Telescope, 1852 - 1853
Reference Code: GBR/0180/RGO 6/165
Scope and Contents
Correspondence on the establishment of a 'Southern Telescope', including a resolution for establishing a large southern telescope; the foundation of the Southern Telescope Committee; printed correspondence with the Southern Telescope Committee, including drawings, mounting of the telescope and posts for observers; and letters from W. Cubitt, Sir W. Denison, T. Maclear, J. Nasmyth, the Earl of Rosse, E. Sabine, W.H. Smyth, C.P. Smyth (with his report for the Royal Observatory, Edinburgh) and...
Dates:
1852 - 1853
Conditions Governing Access:
From the Management Group:
Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).
File
Correspondence on the Standards Commission, 1849 - 1858
Reference Code: GBR/0180/RGO 6/344
Scope and Contents
General correspondence on the Standards Commission. The correspondents include M. Biot, E.W. Brayley, A. de Morgan, W. De La Rue, M. Faraday, J.P. Gassiot, T. Maclear, E. Sabine, C.A. Peters and G.G. Stokes. The volume includes a galley proof titled 'Proposals to increase the gross weight of the Sovereign to 125 grains by making a small addition to the alloy, but preserving 113 grains of fine gold contained therein'; a copy of 'A Bill for regulating Weights and Measures'; a paper titled...
Dates:
1849 - 1858
Conditions Governing Access:
From the Management Group:
Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).
File
Correspondence on time balls and signals, 1861 - 1866
Reference Code: GBR/0180/RGO 6/615
Scope and Contents
Correspondence and related papers on the time signal and the time ball service. There are various papers on the signalling of time by a falling ball or by cannon fire at Birmingham, Cardiff, Devonport, Edinburgh, Glasgow, Madras, Newcastle, Nice and the Palais Royale, Paris; proposals for time balls at Wellington (New Zealand), Ipswich, and Port Elizabeth; proposals for clocks and bells in Worcester; details of local time signals in 'The Scotsman', 'Daily Review', 'Glasgow Daily Herald',...
Dates:
1861 - 1866
Conditions Governing Access:
From the Management Group:
Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).
Sub-Series
Correspondence on transit of Venus, 1868 - 1881
Reference Code: GBR/0180/RGO 6/271
Scope and Contents
Correspondence relating to the transit of Venus, 1874. The correspondents include J.C. Adams, W. De La Rue (with a photograph), R.L.J. Ellery, B.A. Gould, R. Grant, Sir W. Huggins, Lord Lindsay, Sir D. Gill, Sir J.N. Lockyer, Sir T. Maclear, Dr R. Copeland, R. Main, E.J. Stone, C. Meldrum, N.R. Pogson, R.A. Proctor, H.C. Russel, C. Todd, Major Tennant, Dr Oppolzer, J.C. Houzeau, J.A.C. Oudemans, P.A.E. Laugier, A. d'Abbadie, C.E. Delaunay, U.J.J. Le Verrier, O. Struve, Dr P.J.E. Janssen, G....
Dates:
1868 - 1881
Conditions Governing Access:
From the Management Group:
Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).
File
Correspondence on triangulation and geodesy, 1896 - 1900
Reference Code: GBR/0180/RGO 15/118
Scope and Contents
Correspondence regarding Arc of Meridian work, triangulation and geodesy, divided into the following sections:'Correspondence with Surveyor-General's Department Cape Town': letters relating to D. Gill's annual reports and the geodetic survey, 1898-1900.'Completion of African Arc of Meridian': letters of 1898-1899, including D. Gill's application to the Royal Geographical Society for assistance in completing a geodetic survey of South Africa from South to North along the 30th...
Dates:
1896 - 1900
Conditions Governing Access:
From the Management Group:
Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).
File
Correspondence on visitor admissions, 1861 - 1866
Reference Code: GBR/0180/RGO 6/709
Scope and Contents
Correspondence regarding admissions to visit the Royal Observatory. The volume is divided broadly into requests from the Admiralty to visit the Royal Observatory; introductions on behalf of visitors; personal requests to visit the Observatory, including visits by Prince Arthur and Louis Phillipe d'Orleans; questionnaires for visitors; and instructions to assistants to receive visitors. The correspondents include J. Washington, G.H. Richards, W.G. Romaine, R. Grant, W. Thomson, J.R. Hind, W....
Dates:
1861 - 1866
Conditions Governing Access:
From the Management Group:
Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).
File
Correspondence on weights and measures, 1834 - 1859
Reference Code: GBR/0180/RGO 15/56
Scope and Contents
Correspondence concerned mainly with the standardisation of weights and measures, including much correspondence with W. Bowler. There are copies of the ordnance signed by the Governor, dated 1848 (No. 13); a bill introduced by Ziervogel; correspondence in a printed booklet concerning the bill; a letter from the Colonial Secretary, 3 August 1859, giving details of the standard weights and measures deposited with the Observatory; and Thomas Maclear's private memorandum, in two parts, for 29...
Dates:
1834 - 1859
Conditions Governing Access:
From the Management Group:
Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).
Sub-Series
Correspondence with telegraph companies, 1860 - 1866
Reference Code: GBR/0180/RGO 6/630
Scope and Contents
Correspondence with various telegraph companies concerned mainly with the failure of time signals, the refurbishment and repairs of wires, the connections with the Royal Observatory, and the trials of overhead wires. There are papers regarding tests on the Dartford Earth current wires; the damage and restoration of telegraph wires due to snowstorms; Airy's details of telegraphic equipment and methods employed at the Royal Observatory, found in 'Description of the galvanic connexions'; a...
Dates:
1860 - 1866
Conditions Governing Access:
From the Management Group:
Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).
File
Diary of Thomas Maclear, 1853
Reference Code: GBR/0180/RGO 15/44
Scope and Contents
Thomas Maclear's diary, 'The Cape of Good Hope Commercial Diary and Bill-Due Book'.
Dates:
1853
Conditions Governing Access:
From the Management Group:
Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).
File
Discussion of star places, 1849 - 1855
Reference Code: GBR/0180/RGO 6/194
Scope and Contents
Correspondence on the positions of stars, observations of stars mentioned in catalogues, corrections to star positions, and examination and formulation of star tables for catalogues. The correspondents include W.H. Smyth, E.J. Cooper, A. Graham, J.C. Adams, T. Maclear, H.C. Schumacher, J.R. Hind, U.J.J. Le Verrier, R.C. Carrington, G.P. Bond, E. Dunkin, N.R. Pogson, O. Struve, M.J. Johnson, E. Heis and J.C. Miller.
Dates:
1849 - 1855
Conditions Governing Access:
From the Management Group:
Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).
File
History of the Cape Observatory, 1840
Reference Code: GBR/0180/RGO 15/80
Scope and Contents
A printed copy of Thomas Maclear's account of the early history of the establishment of the Cape Observatory, including a description of the instruments and an explanation of the printed observations.
Dates:
1840
Conditions Governing Access:
From the Management Group:
Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).
Sub-Series
La Caille's Arc of Meridian, 1866
Reference Code: GBR/0180/RGO 24/4
Scope and Contents
'Verification and Extension of La Caille's Arc of Meridian at the Cape of Good Hope; by Sir Thomas Maclear' (Saul Solomon & Co).
Dates:
1866
Conditions Governing Access:
From the Management Group:
Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).
File
Letters from observatories, 1849
Reference Code: GBR/0180/RGO 6/142
Scope and Contents
Letters from various observatories on filling vacancies, requests for information and for advice on instruments, and the formation of new observatories. The correspondents include J.R. Hind, C. Pasley, T. Maclear (a testimonial), J. Challis, W.S. Jacob, R. Sheepshanks, C.P. Smyth, G. Fisher, C. Pritchard, O.M. Mitchel, Captain P.P. King, Sir J.F.W. Herschel, W.R. Dawes and J.P. Nichol. There are communications with J.D. Forbes on the possibility of time balls at Edinburgh; reports by the...
Dates:
1849
Conditions Governing Access:
From the Management Group:
Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).
File
Letters from observatories, 1861 - 1865
Reference Code: GBR/0180/RGO 6/148
Scope and Contents
Letters from various British and international observatories on filling vacancies at Sydney; requests for new instruments from Madras and other places; and the possible establishment of new observatories at Bristol and other locations. The correspondents include C.P. Smyth, J.C. Adams, R. Grant, N.R. Pogson, R.L.J. Ellery, O. Struve, W. De La Rue, F.A.T. Winnecke, Sir F. Galton, R.C. Carrington, A. de Morgan, J.C. Maxwell and T. Maclear. There is also a photograph of Fletcher's Observatory;...
Dates:
1861 - 1865
Conditions Governing Access:
From the Management Group:
Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).
File
Letters from Simon's Town Naval Yard, 1850 - 1870
Reference Code: GBR/0180/RGO 15/58
Scope and Contents
Letters from the Naval Yard at Simon's Town, addressed mainly to Thomas Maclear, dealing with orders for various items of equipment for the Cape Observatory and related business:Letters from John Breaks, Naval Yard, 21 January 1850 - 22 April 1852.Letters from A. Drew, 5 May 1851 - 10 August 1852, regarding the expenses of the Cape Observatory and other financial matters.Letters from Jopseh Dayman, 15 December 1852 - 1857, regarding observations he has been asked to...
Dates:
1850 - 1870
Conditions Governing Access:
From the Management Group:
Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).
File
Letters from the Admiralty, 1853 - 1870
Reference Code: GBR/0180/RGO 15/59
Scope and Contents
Letters to Thomas Maclear from the Admiralty and the Hydrographer's Department regarding administrative and financial matters. The subjects include: The appointment of Mr Mann as assistant at the Cape Observatory, 14 September 1853.The discovery of the minor planet Euterpe by J.R. Hind, with observational places, 8 November 1853.Financial estimates for the year 1861-1862.Sanction for the payment of the Simon's Town time ball, 6 May 1861.Inventory of...
Dates:
1853 - 1870
Conditions Governing Access:
From the Management Group:
Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).
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