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Earnshaw, Thomas, 1749 - 1829 (maker of watches and chronometers)

 Person

Found in 130 Collections and/or Records:

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 Item

A journal of the situation of HMS Providence at noon during her late voyage on discoveries, 1795-10-11 - 1797-05-16

Reference Code: GBR/0180/RGO 14/68: 139-145
Scope and Contents As shown by the log, by Mr Earnshaw's three timekeepers, by Mr Arnold's two timekeepers, and also by lunar observations. The journal includes a summary of the latitudes and longitudes of 'most of the remarkable places seen in the voyage' [RGO 14/68: 145v].
Dates: 1795-10-11 - 1797-05-16
Conditions Governing Access: From the Management Group: Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).
 Item

Account by James Inman of his work as astronomer, 1803 - 1804

Reference Code: GBR/0180/RGO 14/68: 175-176
Scope and Contents The account relates to the voyage of HMS Investigator under Captain Flinders and observations taken by Inman at Port Jackson. It includes details of problems Inman had with his equipment.
Dates: 1803 - 1804
Conditions Governing Access: From the Management Group: Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).
 Item

Account of comparisons of the timekeepers Nos. 82, 176, 520 and 1736 with the standard, No. 543, 1801-10-31 - 1803-04-11

Reference Code: GBR/0180/RGO 14/66/1: 72-95
Scope and Contents From the Item: Book of rough calculations of astronomical observations and of comparisons of the timekeepers, made by Captain Flinders and Lieutenant Ward Flinders. Folios 70-95 are inverted in the volume.
Dates: 1801-10-31 - 1803-04-11
Conditions Governing Access: From the Management Group: Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).
 Item

Account of the going of Mr Earnshaw's box timekeeper No.1 at the Royal Observatory, 1798-01-01 - 1799-01-01

Reference Code: GBR/0180/RGO 14/25: 287-294
Scope and Contents From the Item: The series also includes two accounts of the rates of watches by Josiah Emory.
Dates: 1798-01-01 - 1799-01-01
Conditions Governing Access: From the Management Group: Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).
 Item

Account of the going of Mr Earnshaw's box timekeeper No.1 (second trial), 1799-10-17 - 1800-12-03

Reference Code: GBR/0180/RGO 14/25: 303-308
Scope and Contents From the Item: The series also includes two accounts of the rates of watches by Josiah Emory.
Dates: 1799-10-17 - 1800-12-03
Conditions Governing Access: From the Management Group: Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).
 Item

Account of the going of Mr Earnshaw's box timekeeper No.1 (third trial), 1801-07-21 - 1802-11-27

Reference Code: GBR/0180/RGO 14/25: 315-321
Scope and Contents From the Item: The series also includes two accounts of the rates of watches by Josiah Emory.
Dates: 1801-07-21 - 1802-11-27
Conditions Governing Access: From the Management Group: Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).
 Item

Account of the going of Mr Earnshaw's box timekeeper No.2 at the Royal Observatory, 1798-01-01 - 1799-01-01

Reference Code: GBR/0180/RGO 14/25: 295-301
Scope and Contents From the Item: The series also includes two accounts of the rates of watches by Josiah Emory.
Dates: 1798-01-01 - 1799-01-01
Conditions Governing Access: From the Management Group: Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).
 Item

Account of the going of Mr Earnshaw's box timekeeper No.2 (second trial), 1799-10-17 - 1800-12-03

Reference Code: GBR/0180/RGO 14/25: 309-314
Scope and Contents From the Item: The series also includes two accounts of the rates of watches by Josiah Emory.
Dates: 1799-10-17 - 1800-12-03
Conditions Governing Access: From the Management Group: Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).
 Item

Account of the going of Mr Earnshaw's box timekeeper No.2 (third trial), 1801-07-20 - 1802-11-27

Reference Code: GBR/0180/RGO 14/25: 322-328
Scope and Contents From the Item: The series also includes two accounts of the rates of watches by Josiah Emory.
Dates: 1801-07-20 - 1802-11-27
Conditions Governing Access: From the Management Group: Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).
 Item

Account of the going of Mr Earnshaw's timekeeper No.265, 1796-01-04 - 1797-01-22

Reference Code: GBR/0180/RGO 14/25: 342-345
Scope and Contents From the Series: The first part of collection is comprised of papers concerning the internal affairs of the Board of Longitude, including the granting of awards, accounts, minutes, committee papers, petitions and memorials, the loan of instruments, publications and the payment of staff. These are followed by a wide range of papers relating to the Board's work, concerning clocks, chronometers and other instruments; longitude and latitude; magnetic variation; schemes and inventions; tables; pendulum experiments;...
Dates: 1796-01-04 - 1797-01-22
Conditions Governing Access: From the Management Group: Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).
 Item

Account with Thomas Earnshaw, 1792 - 1806

Reference Code: GBR/0180/RGO 14/17: 229-241
Scope and Contents From the File: Papers regarding payments for work done on behalf of the Board.
Dates: 1792 - 1806
Conditions Governing Access: From the Management Group: Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).
 File

'An Account of the going of Dr Maskelyne's new Chronometer N.309 made by Mr T. Earnshaw', 1799 - 1811

Reference Code: GBR/0180/RGO 4/153
Scope and Contents Also contains results for 'A continuation of the trial of the late Dr. Postlethwaite's watch' from 12 August - 30 September 1799.
Dates: 1799 - 1811
Conditions Governing Access: From the Management Group: Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).
 Item

Astronomical observations, 1801-11-04 - 1803-04-20

Reference Code: GBR/0180/RGO 14/66/1: 1*-69
Scope and Contents With the time kept by the timekeeper No. 543 and with additional remarks on the visibility, sea conditions, and occasionally, the location in which observations were made.
Dates: 1801-11-04 - 1803-04-20
Conditions Governing Access: From the Management Group: Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).
 Item

Astronomical observations, 1803-04-21 - 1803-05-12

Reference Code: GBR/0180/RGO 14/66/2: 1-4r
Scope and Contents Continued from rough book no. 1; see also [RGO 14/66/1: 1*-69].
Dates: 1803-04-21 - 1803-05-12
Conditions Governing Access: From the Management Group: Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).
 Item

Astronomical observations for determining the latitude of the ship, and her longitude, 1794-10-11 - 1797-05-16

Reference Code: GBR/0180/RGO 14/68: 120-133
Scope and Contents Observations made on board HMS Providence for determining the latitude and longitude by Mr Earnshaw's three watches and by Mr Arnold's watch. The observations end with an account of the shipwreck [RGO 14/68: 133].
Dates: 1794-10-11 - 1797-05-16
Conditions Governing Access: From the Management Group: Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).
 Item

Astronomical observations made at Rio de Janeiro, 1791-11-10 - 1791-11-22

Reference Code: GBR/0180/RGO 14/62: 65r-71v
Scope and Contents Tabulated logs of observations, with related remarks. These include observations of equal altitudes; transits of the sun, moon and stars over the meridian; observations on the dip of the magnetic needle; comparisons of Mr Arnold’s watches Nos. 14 and 176 with the clock; comparisons of Mr Earnshaw's watch with the clock; and observations on the tides.
Dates: 1791-11-10 - 1791-11-22
Conditions Governing Access: From the Management Group: Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).
 Item

Astronomical observations made on a voyage in the HMS Providence, 1794-1797, 1794 - 1801

Reference Code: GBR/0180/RGO 14/67: 81a-175
Scope and Contents Astronomical observations made in the course of a voyage to the Northern Pacific Ocean in HMS Providence, commanded by William Robert Broughton, Esquire. These were compiled by the astronomer John Crosley. Observations begin in October 1794 when the ship left England and end on 16 May 1797 when the ship struck a coral reef and was lost. The entries include an account of the shipwreck, copied from the ship’s log book [RGO 14/67: 168r-168v]. Many of the observations relate to the four timekeepers...
Dates: 1794 - 1801
Conditions Governing Access: From the Management Group: Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).
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Calculations of observations made on a voyage of the HMS Investigator, 1801-06-16 - 1807-10-18

Reference Code: GBR/0180/RGO 14/66/3: 1-108
Scope and Contents Book of rough calculations of astronomical observations and accounts of the daily rates of the timekeepers and their errors. Includes observations written on the back of a sales receipt [RGO 14/66/3: 97v] and on the back of a letter from Robert Brine to Lieutenant Flinders [RGO 14/66/3: 107].
Also included is a list of French phases compiled by Captain Flinders while imprisoned on the island of Mauritius [RGO 14/66/3: 56].
Dates: 1801-06-16 - 1807-10-18
Conditions Governing Access: From the Management Group: Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).
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Comparison of Thomas Earnshaw and John Arnold's time-keepers, 1801-06-17 - 1801-07-17

Reference Code: GBR/0180/RGO 4/186: 2-3
Scope and Contents From the File: Observations made by John Crosley on his voyage to New Holland (Australia) on board HMS Investigator to carry out surveying.
Dates: 1801-06-17 - 1801-07-17
Conditions Governing Access: From the Management Group: Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).
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Comparisons of the timekeepers E520 and A1736 with the standard timekeeper, No. 543, 1803-04-21 - 1803-05-27

Reference Code: GBR/0180/RGO 14/66/1: 70*-71
Scope and Contents Continued from rough book no. 1.
Dates: 1803-04-21 - 1803-05-27
Conditions Governing Access: From the Management Group: Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).
 Item

Computations from observations made at Rio de Janeiro, 1791-11

Reference Code: GBR/0180/RGO 14/62: 158r-222v
Scope and Contents Includes computations of the rates of watches by Arnold and Earnshaw [RGO 14/62: 158r-180r], computations of the latitude and longitude of Rio de Janeiro [RGO 14/62: 181r-196v], tables of the rates of the daily rates of the timekeepers and pocket watches [RGO 14/62: 197], and various mathematical calculations and charts.
Folios 214r-222v are inverted in the volume.
Dates: 1791-11
Conditions Governing Access: From the Management Group: Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).
 File

Confirmed minutes, 1780 - 1801

Reference Code: GBR/0180/RGO 14/6
Scope and Contents Minutes of Board of Longitude meetings regarding, among other matters, the rates of various chronometers; Charles Hutton's tables of products, powers and roots of natural numbers; the voyages of HMS 'Resolution' and HMS 'Discovery' and the examination of their log books; John Arnold's improvements to his watches; a suitable site for the Board of Longitude's instruments after the burning of the cupola of the Greenwich Hospital where they had been kept; improvements to reflecting telescopes; the...
Dates: 1780 - 1801
Conditions Governing Access: From the Management Group: Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).
 File

Confirmed minutes, 1802 - 1823

Reference Code: GBR/0180/RGO 14/7
Scope and Contents Minutes of Board of Longitude meetings regarding, among other matters, tables devised by José Mendoza de Ríos; correspondence with John Crosley (the astronomer with the expedition to New South Wales); a claim for a reward for Charles Mason's work on lunar tables; a report on the Arnold and Earnshaw chronometers going on the voyage of Captain Matthew Flinders; grants and awards to chronometer-makers; the observations of Nathaniel Bliss when he was Astronomer Royal; models of watch escapements...
Dates: 1802 - 1823
Conditions Governing Access: From the Management Group: Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).
 Item

Copy of a letter from John Roger Arnold to the Board of Longitude, 1809-02-18

Reference Code: GBR/0180/RGO 14/25: 105
Scope and Contents From the Series: The first part of collection is comprised of papers concerning the internal affairs of the Board of Longitude, including the granting of awards, accounts, minutes, committee papers, petitions and memorials, the loan of instruments, publications and the payment of staff. These are followed by a wide range of papers relating to the Board's work, concerning clocks, chronometers and other instruments; longitude and latitude; magnetic variation; schemes and inventions; tables; pendulum experiments;...
Dates: 1809-02-18
Conditions Governing Access: From the Management Group: Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).
 Item

Copy of a letter to Captain Beaufort concerning the order to issue a chronometer by Earnshaw to HMS Hermes, 1831-08-29

Reference Code: GBR/0180/RGO 5/233: 53v-54r
Scope and Contents From the Item: Copies of outgoing correspondence from Astronomer Royal, John Pond, and his assistant, Thomas Taylor, at the Royal Observatory. Some of the letters are addressed to chronometer makers. Note that correspondence to more than one person often appears on the same page.
Dates: 1831-08-29
Conditions Governing Access: From the Management Group: Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).
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