Explanations of time-keepers, constructed by Mr. Thomas Earnshaw and the late Mr. John Arnold
By: Published by order of the Commissioners of Longitude
Contributors: Arnold, John Roger; Great Britain. Commissioners of Longitude
Publisher: Printed by T. Bensley, and sold by Payne and Mackinlay
Published: 1806
Place of publication: London
Language: eng
Number of pages: 63
Subjects: Chronometers
Notes: The explanation of Arnold's chronometer is by his son, John Roger Arnold.

Rare Book copy: Bound with: Maskelyne, Nevil. An account of the going of Mr. John Harrison's watch. 1767