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

 Person

Found in 8 Collections and/or Records:

 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

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

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).
 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).
 Item

Copy of the HMS Investigator’s comparison book for the timekeepers, 1801-10-31 - 1802-08-10

Reference Code: GBR/0180/RGO 14/66/2: 4v-27
Scope and Contents Containing tables of comparison relating to timekeepers A82, A176, A1736, E520 and E543.
Dates: 1801-10-31 - 1802-08-10
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

Observations made on the voyage, 1801-1805, 1801 - 1805

Reference Code: GBR/0180/RGO 14/64: 107-211
Scope and Contents The observations form a continuous run, with occasional headings based on location (reproduced here).
Dates: 1801 - 1805
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

Summaries of observations made between December 1801 and July 1802, 1801-12-12 - 1802-07-18

Reference Code: GBR/0180/RGO 14/64: 55v-60v
Scope and Contents Includes accounts of the rates and errors of the timekeepers by Earnshaw and Arnold, and summaries of observations to determine longitude made in Princess Royal Harbour, at Bay 10, in Port Phillip Bay and at Cattle Point on the east side of Sydney Cove, Port Jackson.
Dates: 1801-12-12 - 1802-07-18
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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