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Christie, William Henry Mahoney, Sir, 1845 - 1922 (Knight, astronomer)

 Person

Found in 3 Collections and/or Records:

 File

Correspondence on time balls and signals, 1870 - 1875

 File
Reference Code: GBR/0180/RGO 6/617
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...
Dates: 1870 - 1875
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, 1875 - 1878

 File
Reference Code: GBR/0180/RGO 6/618
Scope and Contents Correspondence and related papers on the time signal and time ball service, including the failures of the Greenwich time signal; notes and a report on the time signals at Portsmouth Dockyard; questions and answers on the Edinburgh time signals; a list of British time signal stations; enquiries from various individuals and the Norwegian and Swedish governments on time signals; time balls proposed for Calcutta and the West Indies; errors and corrections in the Westminster and Post Office...
Dates: 1875 - 1878
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

Papers on Standard Time, 1880 - 1940

 File
Reference Code: GBR/0180/RGO 8/84
Scope and Contents Miscellaneous correspondence, official notices, tables and articles relating to Standard Time, including the following material:Proceedings of the Conference Internationale de l'Heure, 1913.Colonial Office notifications to the Royal Observatory of changes in Standard Time adopted in the colonies and protectorates, with copies of various acts and ordinances amending the law in respect of time at home and in the colonies, including the Act of 1880 and the British Summer Time...
Dates: 1880 - 1940
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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Calcutta 1
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Edinburgh 1
London 1