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An account of the going, during Thirteen Months. At the Royal Observatory at Greenwich, of a pocket Chronometer, Invented and Made by John Arnold, Published with Permission of the Board of Longitude.
Arnold, John, chronometer maker.Date: 1780- Books
- Online
An account kept during thirteen months in the Royal Observatory at Greenwich, of The Going of a Pocket Chronometer, made on a new construction, by John Arnold, Having his new-invented Ballance Spring, and A Compensation for the Effects of Heat and Cold In the Ballance. Published by Permission of the Board of Longitude.
Arnold, John, chronometer maker.Date: 1780- Pictures
Clocks: a marine chronometer, barometer, and thermometer. Engraving by Defehrt after L.J. Goussier.
Goussier, Louis-Jacques, 1722-1799.Reference: 40838i- Pictures
Clocks: a chronometer mechanism. Engraving by Defehrt after L.J. Goussier.
Goussier, Louis-Jacques, 1722-1799.Reference: 40762i- Pictures
Clocks: a chronometer mechanism. Engraving by Defehrt after L.J. Goussier.
Goussier, Louis-Jacques, 1722-1799.Reference: 40745i- Pictures
Clocks: a chronometer mechanism. Engraving by Prevost after L.J. Goussier.
Goussier, Louis-Jacques, 1722-1799.Reference: 40773i- Pictures
Clocks: a chronometer mechanism. Engraving by Defehrt after L.J. Goussier.
Goussier, Louis-Jacques, 1722-1799.Reference: 40761i- Pictures
Clocks: a marine chronometer and barometer. Engraving by Defehrt after L.J. Goussier.
Goussier, Louis-Jacques, 1722-1799.Reference: 40747i- Pictures
Clocks: a [combined?] marine chronometer, barometer, and thermometer. Engraving by A.J. Defehrt after L.J. Goussier.
Goussier, Louis-Jacques, 1722-1799.Reference: 40737i- Pictures
Clocks: various parts of a pocket chronometer. Engraving by Benard after L.J. Goussier.
Goussier, Louis-Jacques, 1722-1799.Reference: 40780i- Pictures
Clocks: a chronometer, and an alarm clock. Engraving by Benard after L.J. Goussier.
Goussier, Louis-Jacques, 1722-1799.Reference: 40777i- Books
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Remarks on a pamphlet [respecting H.'s chronometer] lately published by the Rev. Mr. Maskelyne, under the authority of the Board of Longitude / By John Harrison.
Harrison, John, 1693-1776.Date: 1767- Pictures
Clocks: a chronometer mechanism for striking the hours. Engraving by Defehrt after L.J. Goussier.
Goussier, Louis-Jacques, 1722-1799.Reference: 40772i- Pictures
Clocks: a pocket chronometer, details of the mechanism. Engraving by Benard after L.J. Goussier.
Goussier, Louis-Jacques, 1722-1799.Reference: 40776i- Pictures
- Online
Clocks: a chronometer, face (top) and mechanism (below). Engraving by Benard after L.J. Goussier.
Goussier, Louis-Jacques, 1722-1799.Reference: 40763i- Pictures
Clocks: a chronometer, correction mechanism (top), and face (below). Engraving by Benard [after L.J. Goussier?].
Goussier, Louis-Jacques, 1722-1799.Reference: 40746i- Pictures
Clocks: a pocket chronometer, face and interior of the case. Engraving by Benard after L.J. Goussier.
Goussier, Louis-Jacques, 1722-1799.Reference: 40775i- Books
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Three registers of a pocket chronometer, and the observations From which they were collected by Count De Bruhl, with an account from Vice-Admiral Campbell, of the first of Mr. Mudge's time-keepers, in a voyage to and from Newfoundland.
Brühl, Hans Moritz, Graf von., 1736-1809.Date: 1785?]- Pictures
Clocks: the mechanism of a chronometer, plan (top), and elevation (below). Engraving by Benard after L.J. Goussier.
Goussier, Louis-Jacques, 1722-1799.Reference: 40744i- Books
- Online
Certificates and circumstances relative to the going of Mr. Arnold's chronometers.
Date: 1791- Books
- Online
The mercurial chronometer improv'd: or, a supplement to a book entituled, An essay, wherein a method is humbly propos'd for measuring equal time with the utmost exactness; without the Necessity of being confin'd to Clocks, Watches, or any other Horological Movements; in order to discover the Longitude at Sea. In which all Objections that are in the least rational are remov'd, and the Method confirm'd. By the author of that essay.
Clarke, James, of Calne, Wilts.Date: MDCCXV. [1715]- Books
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Étrennes chronométriques pour l'an 1811. Ou, Précis de ce qui concerne le tems, ses divisions, ses mesures, leurs usages, etc / publié par Antide Janvier.
Janvier, 1751-1835.Date: 1810- Books
- Online
The principles of Mr. Harrison's time-keeper, with plates of the same. Published by order of the commissioners of longitude.
Harrison, John, 1693-1776.Date: MDCCLXVII. [1767]- Books
- Online
An answer from John Arnold to an anonymous letter on the longitude.
Arnold, John, chronometer maker.Date: MDCCLXXXII. [1782]- Books
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A description concerning such mechanism as will afford a nice, or true mensuration of time; together with some account of the attempts for the discovery of the longitude by the moon: as also an account of the discovery of the scale of musick. By John Harrison, Inventer of the Time-Keeper for the Longitude at Sea.
Harrison, John, 1693-1776.Date: M.DCC.LXXV. [1775]