London
Subject
Subject Source: Local sources
Found in 1992 Collections and/or Records:
Item
Letter from Thomas Hedgcock to the Board of Longitude, 1816-02-28
Item
Reference Code: GBR/0180/RGO 14/35: 295-295a
Scope and Contents
Originally enclosed in the letter to Thomas Hurd at [RGO 14/35: 294-294a].
Dates:
1816-02-28
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).
Found in:
Cambridge University Library
/
Royal Greenwich Observatory Archives
/
Papers of the Board of Longitude
/
Correspondence regarding methods of establishing longitude by lunar methods other than lunar distances
/
Thomas Hedgcock on finding the longitude by an altitude of the sun, moon or star
Item
Letter from Thomas Hedgcock to the Board of Longitude, 1816-09-04
Item
Reference Code: GBR/0180/RGO 14/35: 297-298
Scope and Contents
Originally enclosed in the letter to Thomas Hurd at [RGO 14/35: 296-296a].
Dates:
1816-09-04
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).
Found in:
Cambridge University Library
/
Royal Greenwich Observatory Archives
/
Papers of the Board of Longitude
/
Correspondence regarding methods of establishing longitude by lunar methods other than lunar distances
/
Thomas Hedgcock on finding the longitude by an altitude of the sun, moon or star
Item
Letter from Thomas Hedgcock to the Board of Longitude, 1818-05-28
Item
Reference Code: GBR/0180/RGO 14/35: 300-301
Scope and Contents
Originally enclosed in the letter to Thomas Hurd at [RGO 14/35: 299-299a].
Dates:
1818-05-28
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).
Found in:
Cambridge University Library
/
Royal Greenwich Observatory Archives
/
Papers of the Board of Longitude
/
Correspondence regarding methods of establishing longitude by lunar methods other than lunar distances
/
Thomas Hedgcock on finding the longitude by an altitude of the sun, moon or star
Item
Letter from Thomas Hedgcock to the Board of Longitude, 1818-11-10
Item
Reference Code: GBR/0180/RGO 14/35: 302-303
Scope and Contents
From the Item:
24 letters, with related papers and observations.
Dates:
1818-11-10
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).
Found in:
Cambridge University Library
/
Royal Greenwich Observatory Archives
/
Papers of the Board of Longitude
/
Correspondence regarding methods of establishing longitude by lunar methods other than lunar distances
/
Thomas Hedgcock on finding the longitude by an altitude of the sun, moon or star
Item
Letter from Thomas Hedgcock to the Board of Longitude, 1825-04-12
Item
Reference Code: GBR/0180/RGO 14/35: 316-317
Scope and Contents
From the Item:
24 letters, with related papers and observations.
Dates:
1825-04-12
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).
Found in:
Cambridge University Library
/
Royal Greenwich Observatory Archives
/
Papers of the Board of Longitude
/
Correspondence regarding methods of establishing longitude by lunar methods other than lunar distances
/
Thomas Hedgcock on finding the longitude by an altitude of the sun, moon or star
Item
Letter from Thomas Hedgcock to the Board of Longitude, 1826-09-18
Item
Reference Code: GBR/0180/RGO 14/35: 328-329
Scope and Contents
From the Item:
24 letters, with related papers and observations.
Dates:
1826-09-18
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).
Found in:
Cambridge University Library
/
Royal Greenwich Observatory Archives
/
Papers of the Board of Longitude
/
Correspondence regarding methods of establishing longitude by lunar methods other than lunar distances
/
Thomas Hedgcock on finding the longitude by an altitude of the sun, moon or star
Item
Letter from Thomas Hedgcock to the Board of Longitude, 1827-12-03
Item
Reference Code: GBR/0180/RGO 14/35: 332-333
Scope and Contents
From the Item:
24 letters, with related papers and observations.
Dates:
1827-12-03
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).
Found in:
Cambridge University Library
/
Royal Greenwich Observatory Archives
/
Papers of the Board of Longitude
/
Correspondence regarding methods of establishing longitude by lunar methods other than lunar distances
/
Thomas Hedgcock on finding the longitude by an altitude of the sun, moon or star
Item
Letter from Thomas Hedgcock to the Board of Longitude, 1813-02-25 - 1813-04-15
Item
Reference Code: GBR/0180/RGO 14/35: 281-282
Scope and Contents
With a note on the reverse by John Croker.
Dates:
1813-02-25 - 1813-04-15
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).
Found in:
Cambridge University Library
/
Royal Greenwich Observatory Archives
/
Papers of the Board of Longitude
/
Correspondence regarding methods of establishing longitude by lunar methods other than lunar distances
/
Thomas Hedgcock on finding the longitude by an altitude of the sun, moon or star
Item
Letter from Thomas Hedgcock to the Lord Commissioners of the Admiralty, 1819-10-31
Item
Reference Code: GBR/0180/RGO 14/35: 304-305
Scope and Contents
From the Item:
24 letters, with related papers and observations.
Dates:
1819-10-31
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).
Found in:
Cambridge University Library
/
Royal Greenwich Observatory Archives
/
Papers of the Board of Longitude
/
Correspondence regarding methods of establishing longitude by lunar methods other than lunar distances
/
Thomas Hedgcock on finding the longitude by an altitude of the sun, moon or star
Item
Letter from Thomas Hedgcock to the Lord Commissioners of the Admiralty, 1826-09-23
Item
Reference Code: GBR/0180/RGO 14/35: 325-327
Scope and Contents
Enclosing an example of his method for ascertaining longitude.
Dates:
1826-09-23
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).
Found in:
Cambridge University Library
/
Royal Greenwich Observatory Archives
/
Papers of the Board of Longitude
/
Correspondence regarding methods of establishing longitude by lunar methods other than lunar distances
/
Thomas Hedgcock on finding the longitude by an altitude of the sun, moon or star
Item
Letter from Thomas Henderson to Dr Thomas Young, 1824-01-28
Item
Reference Code: GBR/0180/RGO 14/35: 414-415
Scope and Contents
About forwarding a paper on occultations and longitude.
Dates:
1824-01-28
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 Thomas Hurd to A. Balfour, 1813-06-09
Item
Reference Code: GBR/0180/RGO 14/55: 85
Scope and Contents
From the Sub-sub-file :
Three letters.
Dates:
1813-06-09
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 Thomas Hurd to Harrison Balfour, 1815-02-15
Item
Reference Code: GBR/0180/RGO 14/36: 219
Scope and Contents
From the Item:
Three letters.
Dates:
1815-02-15
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).
Found in:
Cambridge University Library
/
Royal Greenwich Observatory Archives
/
Papers of the Board of Longitude
/
Correspondence regarding methods of establishing longitude by Jupiter's satellites, the planets and fixed stars
/
Correspondence with Harrison Balfour on a method using apparent azimuth altitudes
Item
Letter from Thomas Hurd to Harrison Balfour, 1815-03-04
Item
Reference Code: GBR/0180/RGO 14/36: 220
Scope and Contents
From the Item:
Three letters.
Dates:
1815-03-04
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).
Found in:
Cambridge University Library
/
Royal Greenwich Observatory Archives
/
Papers of the Board of Longitude
/
Correspondence regarding methods of establishing longitude by Jupiter's satellites, the planets and fixed stars
/
Correspondence with Harrison Balfour on a method using apparent azimuth altitudes
Item
Letter from Thomas Hurd to Sir Charles Yorke, 1811-06-12
Item
Reference Code: GBR/0180/RGO 14/68: 48
Scope and Contents
Concerning observations made by Captain Matthew Flinders.
Dates:
1811-06-12
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 Thomas Hurd to Sir Charles Yorke, 1811-06-13
Item
Reference Code: GBR/0180/RGO 14/68: 49-50
Scope and Contents
Concerning observations made by Captain Matthew Flinders.
Dates:
1811-06-13
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 Thomas Hurd to Thomas Hedgcock, 1815-06-01
Item
Reference Code: GBR/0180/RGO 14/35: 287
Scope and Contents
From the Item:
24 letters, with related papers and observations.
Dates:
1815-06-01
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).
Found in:
Cambridge University Library
/
Royal Greenwich Observatory Archives
/
Papers of the Board of Longitude
/
Correspondence regarding methods of establishing longitude by lunar methods other than lunar distances
/
Thomas Hedgcock on finding the longitude by an altitude of the sun, moon or star
Item
Letter from Thomas Hurd to W.H. Mallison, 1810-06-09
Item
Reference Code: GBR/0180/RGO 14/36: 214
Scope and Contents
From the Item:
Three letters.
Dates:
1810-06-09
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).
Found in:
Cambridge University Library
/
Royal Greenwich Observatory Archives
/
Papers of the Board of Longitude
/
Correspondence regarding methods of establishing longitude by Jupiter's satellites, the planets and fixed stars
/
Correspondence with W.H. Mallison on a method using the sun's meridian altitude
Item
Letter from Thomas John Hussey regarding some tables of logarithms, 1827-09-24
Item
Reference Code: GBR/0180/RGO 14/46: 240-241
Scope and Contents
From the File:
Correspondence regarding various astronomical and nautical tables.
Dates:
1827-09-24
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 Thomas Johnstone concerning errors in longitude and latitude, 1806-09-06
Item
Reference Code: GBR/0180/RGO 14/41: 15-17
Scope and Contents
From the File:
Correspondence regarding methods for establishing latitude.
Dates:
1806-09-06
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 Thomas Johnstone to Lord Mulgrave, 1807-08-19
Item
Reference Code: GBR/0180/RGO 14/36: 203-204
Scope and Contents
From the Item:
Five letters and a proposal on finding longitude by using the sun's bearing and by the lowest ascension of the pointers encircling the Pole.
Dates:
1807-08-19
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 Thomas Johnstone to Lord Mulgrave, 1807-09-08
Item
Reference Code: GBR/0180/RGO 14/36: 205-206
Scope and Contents
Enclosing a drawing of a quarter of the globe marked with lines of latitude, the tangents of the meridian, and variations of the compass.
Dates:
1807-09-08
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 Thomas Johnstone to the Admiralty, 1806-01-25
Item
Reference Code: GBR/0180/RGO 14/38: 243-244
Scope and Contents
From the Item:
Four letters and a proposal.
Dates:
1806-01-25
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).
Found in:
Cambridge University Library
/
Royal Greenwich Observatory Archives
/
Papers of the Board of Longitude
/
Correspondence regarding methods and instruments used to establish longitude and the use of chronometers at sea
/
Thomas Johnstone's instrument for finding longitude by an observation of the Sun
Item
Letter from Thomas Johnstone to the Admiralty, 1806-02-06
Item
Reference Code: GBR/0180/RGO 14/38: 245-246
Scope and Contents
From the Item:
Four letters and a proposal.
Dates:
1806-02-06
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).
Found in:
Cambridge University Library
/
Royal Greenwich Observatory Archives
/
Papers of the Board of Longitude
/
Correspondence regarding methods and instruments used to establish longitude and the use of chronometers at sea
/
Thomas Johnstone's instrument for finding longitude by an observation of the Sun
Item
Letter from Thomas Johnstone to the Admiralty, 1806-03-03
Item
Reference Code: GBR/0180/RGO 14/38: 247-248
Scope and Contents
From the Item:
Four letters and a proposal.
Dates:
1806-03-03
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).
Found in:
Cambridge University Library
/
Royal Greenwich Observatory Archives
/
Papers of the Board of Longitude
/
Correspondence regarding methods and instruments used to establish longitude and the use of chronometers at sea
/
Thomas Johnstone's instrument for finding longitude by an observation of the Sun