Janus: Papers of George Airy

RGO Archives/RGO 6 contains:
<-- See earlier
611	Correspondence on galvanic signals
612	Correspondence on galvanic time
613	Correspondence on galvanic time
614	Correspondence on time balls and signals
615	Correspondence on time balls and signals
616	Correspondence on time balls and signals
617	Correspondence on time balls and signals
618	Correspondence on time balls and signals
619	Correspondence on the Deal time ball
620	Correspondence on the Deal time ball
621	Correspondence on the Deal time ball
See later -->

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Papers of George Airy

Title	Correspondence on time balls and signals
Reference	RGO 6/616 (former reference: C2/7)
Covering Dates	1866–1870
Extent and Medium	2 boxes

Content and context

Correspondence and related papers on the time signal and time ball service, including a proposed time ball on Tuskar Rock in the Irish Sea, with a chart; a proposed time signal at Dundee; cable laying on the Great Eastern Railway; a proposed Ipswich Time Ball; the rating and errors of the Westminster and Post Office clocks; a proposed public clock for the City of London; electric clocks for the Adelaide Parliament, Madras (including a drawing) and Colaba Observatory in Bombay (including three photographs, specifications and trials); plans of electric clock systems; the Lombard Street Clocks; and a paper titled 'Time signals at the Start Point', concerning a naval time service. The correspondents include C.F. Varley, W.S. Jacob, C.V. Walker, M.F. Maury, W. De La Rue, J. Washington, E. Sabine, G.H. Richards, G.W. Hunt, T.H. Farrer, W.G. Romaine, T.M. Gibson and P.H. Colomb.

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