Scope and Contents Correspondence and related papers on the communication of time by the Post Office telegraph. There are papers on the trials, costs and tests of clocks on the network; the regulation of clocks; proposals for time signals to be sent to naval dockyards from Greenwich; time balls at Portsmouth, Devonport, Sheerness, Glasgow, Hamburg, Liverpool and the City Observatory, London; and a report by Airy on the workings of the Devonport Time Ball and sketches of its galvanic arrangement. The...

Scope and Contents Correspondence with various scientific societies, with related papers. There are minutes and proceedings of the British Association; papers on the work of the Balloon Committee; R. Willis' address to the 1862 conference at Cambridge; the programme and list of membership for this Cambridge conference; 'Birmingham Daily Post' and 'Daily Telegraph' reports on balloon trials; Airy's talk on strains in tubular bridges; writing by J.D. Forbes on the conduction of heat in bars; determination of...