Scope and Contents From the File:

Correspondence between the Admiralty Office and the Royal Observatory, Greenwich, requesting the loan of chronometers for H M Ships. The principal recipient is John Pond; the principal correspondent is John Barrow. Other correspondents include John Croker, Richard S. Dundas, G. Smith, John Franklin and Sir William Edward Parry.

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, and instructions to assistants to receive guests. The correspondents include C. Wood, F. Beaufort, J. Barrow, S.H. Herbert, H.T.C. Corry, H.G. Ward, R.S. Dundas, J.G. Children, C.W. Pasley, H.C. Schumacher, J.F. Encke, J.W. Lubbock, T. Henderson, W.R....

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Correspondence, letters A-L, regarding pendulum experiments at Harton, including a letter to the Academie des Sciences, correspondence with the Admiralty, and correspondence with, among others, J. Anderson, G.A. Biddell, J.R. Hind, R.C. Carrington, Professor J. Challis, G.S. Criswick, E. Dunkin, W. Ellis, Professor M. Faraday, J. Glaisher, E. Green, Sir John Herschel, Lt Col. James and M.J. Johnson.

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Sent from John Barrow to John Pond.

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Sent from John Croker to John Pond.

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Sent from John Barrow to John Pond.

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Sent from John Barrow to John Pond.

Scope and Contents Papers and correspondence on improvements to navigation on the River Dee, including papers on the history and organisation of the River Dee Company; comparisons of old and new standards at Chester; records of tides at Chester and Liverpool, with meteorological remarks from 1769; a report on the Company titled 'Dee Standard Restoration'; observations, calculations and discussions on the old and new level of the River Dee at Chester; plans of the River Dee for 1684, 1732, 1771, 1839 and 1849;...

Scope and Contents Papers on scientific matters relating principally to telegraphs, including descriptions of the Bessemer Process; articles from the 'Reader and the Scientific Review' by W.F. Cooke on the invention of the electric telegraph; papers on galvanic currents by C. Brooke; 'The Telegrapher' on a constant galvanic battery; tests by J.C. Clark on submarine cables; 'Atlantic Telescopes' by W.R. Grove; alterations of a transit level by an earthquake; trials of navy telescopes; spectrum apparatus used at...

Scope and Contents Papers concerned principally with telegraphs and tests on Admiralty telescopes. The material on telegraphs includes tests and observations of deflections by C.F. Varley; a map of telegraph lines; a report on the South Australian telegraph; and a newspaper article on the Atlantic cable. The papers concerning Admiralty tests on telescopes include Airy's reports on his findings and correspondence with R.S. Dundas. Other material includes A. Sedgwick writing on Darwin's Theory in 'The Cambridge...