Account of Improvements in Chronometers, Made by Mr. John Sweetman Eiffe; for Which a Reward was Granted to him by the Lords Commissioners of the Admiralty. With an Appendix, Containing Mr. Robert Molyneux's Specification of a Patent for Improvements in C

This technical report documents the development of improved chronometers for use in navigation and other purposes. With detailed descriptions of the mechanisms involved and the testing process used, this book is a valuable resource for anyone interested in the history of timekeeping.
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