Principles and explanations of timekeepers by Harrison, Arnold and Earnshaw.
Time-keepers Principles of Mr. Harrison's time-keeper, with plates of the same Explanation of time-keepers, constructed by Mr. Thomas Earnshaw and the late Mr. John Arnold
- 1 volume (various pagings), [16] leaves of plates (some folded) : illustrations ; 28 cm
On spine: Time-keepers. "A British Horological Institute reprint celebrating its 125th anniversary year." Includes reprints of The principles of Mr. Harrison's time-keeper, 1767, and Explanation of time-keepers, constructed by Mr. Thomas Earnshaw and the late Mr. John Arnold, 1805.
Includes bibliographical references.
The principles of Mr. Harrison's time-keeper, with plates of the same -- Explanation of time-keepers, constructed by Mr. Thomas Earnshaw and the late Mr. John Arnold.