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Cheltenham

 Subject
Subject Source: Local sources

Found in 4 Collections and/or Records:

 Item

Letter from J.L. Mackay to Captain Thomas Hurd, 1817-07-24

Reference Code: GBR/0180/RGO 14/36: 222-224
Scope and Contents

On a method using the difference in time of the appearance of stars.

Dates: 1817-07-24
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 J.L. Mackay to Captain Thomas Hurd, 1818-03-17

Reference Code: GBR/0180/RGO 14/40: 362-363
Scope and Contents

Outlining his proposal to find longitude by a lunar dial.

Dates: 1818-03-17
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).
 Item

Letter from J.L. Mackay to Captain Thomas Hurd, 1818-03-19

Reference Code: GBR/0180/RGO 14/40: 364-365
Scope and Contents

Outlining his proposal to find longitude by a lunar dial.

Dates: 1818-03-19
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 J.L. Mackay to Captain Thomas Hurd, 1818-03-26

Reference Code: GBR/0180/RGO 14/40: 366
Scope and Contents

Containing a recapitulation of his proposal to find longitude by a lunar dial, and suggesting that the lunar dial could also be used to regulate a chronometer.

Dates: 1818-03-26
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).