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Board of Longitude

 Organization

Found in 5 Collections and/or Records:

 Item

Drawing by Thomas Johnstone, 1808-03-03

Reference Code: GBR/0180/RGO 14/40: 300
Scope and Contents

Drawing of an instrument for ascertaining longitude at sea by observing the pointers of the Great Bear. Sent from Millton by Dumbarton.

Dates: 1808-03-03
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).
 Item

Letter from Thomas Johnstone concerning errors in longitude and latitude, 1806-09-06

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 the Board of Longitude, 1805-11-07

Reference Code: GBR/0180/RGO 14/40: 298-299
Scope and Contents

Concerning his proposed method of finding longitude by taking the distance from the sun. Sent from Dumbarton.

Dates: 1805-11-07
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 Board of Longitude, 1806-10-29

Reference Code: GBR/0180/RGO 14/36: 198-199
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: 1806-10-29
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).
 Item

Letter from Thomas Johnstone to the Board of Longitude, 1807-10-31

Reference Code: GBR/0180/RGO 14/36: 207-208
Scope and Contents

Includes illustrated instructions for taking the distance of celestial objects from each other, and their bearings from the ship.

Dates: 1807-10-31
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).

Filtered By

  • Subject: Dumbarton X

The UK Archival Thesaurus has been integrated with our catalogue, thanks to Kings College London and the AIM25 project for their support with this.