Troughton, Edward, 1753 - 1835 (scientific instrument maker)
Person
Found in 56 Collections and/or Records:
Item
Account with John & Edward Troughton, 1791 - 1822
Reference Code: GBR/0180/RGO 14/18: 357-371
Scope and Contents
From the File:
Papers regarding payments for work done on behalf of the Board, including some miscellaneous receipts.
Dates:
1791 - 1822
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
Catalogues and other papers, 1801 - 1830
Reference Code: GBR/0180/RGO 5/222
Scope and Contents
Various catalogues reduced to the beginnings of several years in right ascension and north polar distance for 1801-1830, comparison of catalogues at different epochs, and computed north polar distances by different refractions; computation of the Sun's diameter in turn reduced to the Earth's mean distance, 1801-1816; an account of William Hardy's transit clock, 1811-1830; and the zenith distance of Alpha Lyrae, 28 January 1825 - 17 May 1830, made with both Edward Troughton and Thomas Jones'...
Dates:
1801 - 1830
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
Computation of north polar distances, 1825
Reference Code: GBR/0180/RGO 5/102
Scope and Contents
Computations of north polar distances taken from observations made with Edward Troughton and Thomas Jones' mural circles, 5 September 1825 - 4 October 1825.
Dates:
1825
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
Correspondence relating to John Crosley's claims for payment for an expedition to the north-west coast of America to make nautical, astronomical and trigonometrical observations for the Navy, 1797 - 1806
Reference Code: GBR/0180/RGO 14/1: 157-178
Scope and Contents
Includes a claim for loss of instruments and books on board HMS Providence when it sank on 16 May 1797.
Dates:
1797 - 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).
Item
Correspondence with Edward Troughton, 1820
Reference Code: GBR/0180/RGO 14/48: 192a-200a
Scope and Contents
Five letters concerning a zenith instrument for the Cape Observatory and the appointment of Troughton's young relative, James Fayrer, as assistant there.
Dates:
1820
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
Dr Thomas Young's Vouchers, 1822 - 1823
Reference Code: GBR/0180/RGO 14/20: 417-489
Scope and Contents
From the File:
Vouchers of Dr Thomas Young for payments to tradesmen and others. Also includes occasional correspondence.
Dates:
1822 - 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
Extract from a report of the Committee of Instruments and Proposals, 1820-04-20
Reference Code: GBR/0180/RGO 14/48: 211
Scope and Contents
Concerning estimates received from Troughton, Dollond and Jones for instruments for the Cape Observatory.
Dates:
1820-04-20
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).
File
Index errors and reductions, 1825
Reference Code: GBR/0180/RGO 5/101
Scope and Contents
Investigation of the Troughton and Jones mural circles and index errors of the two circles, using two and six microscopes, 18 January - 4 May 1825; complete reduction of star observations with the Troughton and Jones mural circles, 14 May - 5 September 1825.
Dates:
1825
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
Investigation of north polar distances, 1825
Reference Code: GBR/0180/RGO 5/158
Scope and Contents
An investigation of the north polar distances of stars by index errors, using Edward Troughton and Thomas Jones' mural circles and two and six microscopes.
Dates:
1825
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
Letter from Edward Troughton to Dr Thomas Young, 1820-04-12
Reference Code: GBR/0180/RGO 14/48: 193-194
Scope and Contents
Concerning a zenith instrument for the Cape Observatory.
Dates:
1820-04-12
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
Letter from Edward Troughton to Dr Thomas Young, 1820-04-19
Reference Code: GBR/0180/RGO 14/48: 195-196
Scope and Contents
Concerning estimates for a zenith micrometer for the Cape Observatory, parts of which were also being made by Dollond and Donkin.
Dates:
1820-04-19
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
Letter from Edward Troughton to Dr Thomas Young, 1820-05-06
Reference Code: GBR/0180/RGO 14/48: 198-199
Scope and Contents
Suggesting that a young instrument maker would make an excellent assistant at the Cape Observatory, and proposing his young relative, James Fayrer, for the post.
Dates:
1820-05-06
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
Letter from Edward Troughton to Dr Thomas Young, 1820-11-27
Reference Code: GBR/0180/RGO 14/48: 200-200a
Scope and Contents
Informing him that James Fayrer would accept the position of assistant at the Cape Observatory.
Dates:
1820-11-27
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
Letter from John Donkin to Edward Troughton, 1820-04-19
Reference Code: GBR/0180/RGO 14/48: 197
Scope and Contents
Concerning the frame for a zenith micrometer for the Cape Observatory. The letter was forwarded by Troughton with a note added.
Dates:
1820-04-19
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
Mr John Pond's Vouchers, 1812 - 1818
Reference Code: GBR/0180/RGO 14/19: 3-40
Scope and Contents
From the File:
Vouchers of John Pond and Dr Thomas Young for payments to tradesmen and others.
Dates:
1812 - 1818
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
Mural circle index error, 1814 - 1818
Reference Code: GBR/0180/RGO 5/98
Scope and Contents
Investigation of the index error of Edward Troughton's mural circle, January 1814 - December 1818.
Dates:
1814 - 1818
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
Mural circle index errors, 1825
Reference Code: GBR/0180/RGO 5/100
Scope and Contents
Index errors: horizontal points of Edward Troughton and Thomas Jones' mural circles, also giving the altitude of stars, with a separate ledger of the altitude of stars for 1825.
Dates:
1825
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
Mural circle index errors, 1827 - 1828
Reference Code: GBR/0180/RGO 5/103
Scope and Contents
Index errors: horizontal points of Edward Troughton and Thomas Jones' mural circles, also giving the altitudes of stars, 2 January 1828 - 28 February 1828.
Dates:
1827 - 1828
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
Mural circle index errors, 1825 - 1828
Reference Code: GBR/0180/RGO 5/104
Scope and Contents
Index errors: horizontal points of Edward Troughton and Thomas Jones' mural circles, also giving the altitudes of stars, 2 January 1827 - 28 February 1828.
Dates:
1825 - 1828
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
Mural circle index errors, 1828 - 1829
Reference Code: GBR/0180/RGO 5/105
Scope and Contents
Investigation of the index errors of Edward Troughton and Thomas Jones' mural circles, March 1828 - March 1829.
Dates:
1828 - 1829
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
Mural circle index errors, 1831 - 1835
Reference Code: GBR/0180/RGO 5/106
Scope and Contents
Index errors: horizontal points of Edward Troughton and Thomas Jones' mural circles, 3 April 1831 - 31 December 1835.
Dates:
1831 - 1835
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
Mural circle index errors, 1833
Reference Code: GBR/0180/RGO 5/107
Scope and Contents
Index errors: adjustments to Edward Troughton and Thomas Jones' mural circles.
Dates:
1833
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
Mural circle observations, 1824 - 1825
Reference Code: GBR/0180/RGO 5/99
Scope and Contents
Observations made with Edward Troughton and Thomas Jones' mural circles and two and six microscopes.
Dates:
1824 - 1825
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
Mural circle stellar readings, 1825
Reference Code: GBR/0180/RGO 5/159
Scope and Contents
Readings of Edward Troughton and Thomas Jones' mural circles for principal stars (apparently by refraction).
Dates:
1825
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
North polar distances of principal stars, 1829 - 1835
Reference Code: GBR/0180/RGO 5/179
Scope and Contents
A ledger on the investigation of north polar distances of principal stars observed with Edward Troughton and Thomas Jones' mural circles.
Dates:
1829 - 1835
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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