Scope and Contents Correspondence on the workings of, packing of, repairs to, ratings of, and transactions involving chronometers. The volume covers chronometer trials, 1840-1865; trials for chronometer ratings for the Indian Stores Department, the Italian government and mail watches; the influence of air pressure on clock rates; J.B. Harbard's description of clock rates; a time piece for measuring a ship's speed; a clock for Ipswich Town Hall; and a programme of horological instruments by M.F. Dent for the...

Scope and Contents

Correspondence on the rates of, repairs to, damage to, ownership of, conversions to, and carriage of various chronometers. The volume covers the Burdett-Coutts prize essay for a compensation balance; problems with the Portsmouth sidereal clock; and proposals for a new electric turret clock at the University of London. The correspondents include F.J.O. Evans, H.C.G. Rümker, C.A.F. Peters, G.H. Richards, C. Wheatstone, C.V. Walker and W.B. Carpenter.

Scope and Contents Correspondence on the workings of, repairs to, ratings of, and transactions involving chronometers. The volume includes papers on the Westminster Clock and Bell; addresses of chronometer makers; printed papers about Jurgensen and Sons, chronometer makers; new balance springs, 1859-1864; trials and ratings of chronometers for the Indian Store Department; a report on chronometers used aboard HMS 'Hecate'; and a letter by J. Rodwell Hux on the history of horology. The correspondents include...

Scope and Contents Correspondence on the rates of, repairs to, trials of, sales of, regulations of, requests on, and ownership of chronometers. The volume covers chronometers for ascertaining a ship's speed; regulations for the testing of chronometers at Liverpool Observatory; mail guards' watches; accounts for chronometers and relevant charges; chronometers for the Indian Department and the Austrian government; the Burdett-Coutts prize for the best essay on balance-springs; and a Swiss report on chronometers...

Scope and Contents 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...

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...

Scope and Contents Correspondence and papers concerning improvements and refinements to chronometers, including escapements by G.W. Linderoth, J. Gray, J.C. Bloxam, and W. Eaton; I. Hermann's escapement, with explanations and plans; C.F. Frodsham's experiments on compensator balances; E. Huntingdon's compensating pendulum; a model face of an astronomical clock; H.B. James on his invention, 'the compensator'; extracts from a report on Danish exhibits at chronometer exhibitions; correction of a clock by magnetic...

Scope and Contents

Correspondence and papers concerning entrants and ratings for the annual competitive chronometer trials. The volume includes ratings of repaired chronometers and regulations on the purchase and exchange of chronometers. The correspondents include W.H.M. Christie, W. Harkness, G.H. Richards, F.J.O. Evans and various chronometer makers.

Scope and Contents

Correspondence and papers concerning entrants and ratings for the annual competitive chronometer trials. The volume includes papers on the handling of chronometers and the exchange and purchase of chronometers, most notably for the Arctic expedition. The correspondents include G.H. Richards, F.J.O. Evans, T. Nelson and various chronometer makers.