Duhamel, Le Duc, fl1822 - 1828 (petitioner to the Board of Longitude)
Person
Found in 3 Collections and/or Records:
Item
Letter from Le Duc Duhamel to the Board of Longitude, 1822-02-25
Item
Reference Code: GBR/0180/RGO 14/38: 469-470
Scope and Contents
From the Item:
Six letters and two papers on his method of ascertaining the exact loss or gain of two chronometers, with a related newspaper extract.
Dates:
1822-02-25
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).
Item
Letter from Monsieur Duhamel to Dr Thomas Young, 1820-05-03
Item
Reference Code: GBR/0180/RGO 14/35: 371-372
Scope and Contents
From the Item:
Two letters and a printed paper on finding the longitude by the moon's transit or distance from the meridian.
Dates:
1820-05-03
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
Monsieur Duhamel on an instrument for showing magnetic variation, 1820-05-15
Item
Reference Code: GBR/0180/RGO 14/43: 509-511
Scope and Contents
From the File:
Correspondence regarding the effect of magnetic variation on the mariner's compass, the use of magnetic variation to establish longitude and the cause of magnetic variation.
Dates:
1820-05-15
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).