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Folder of John Francis Campbell containing the sun-dial experiments for June 1874 described in Adv.MS.50.6.12a., 1855-1856, 1874, 1881.

Identifier: Adv.MS.50.6.12B

Scope and Contents

Arcs of black water-proof material were used to register the daily path and burning power of the sun and are pasted on sheets of heavy cartridge paper joined together to form a continuous strip.

Loosely inserted at the back of the folder is a sheet of linen on which several printed diagrams are mounted illustrating the sun`s burning power ascertained from Campbell`s Registering Sun-Dial in 1855-1856.

Later notes of Campbell dated 4 July 1881 appear on the first board with a photograph of a modification of his sun-dial at Greenwich Observatory.


  • Creation: 1855-1856, 1874, 1881.

Language of Materials

From the Collection:

English; Scottish Gaelic


0.00 Linear metres (i + Xl folios. Folio.)

Repository Details

Part of the National Library of Scotland Archives and Manuscripts Division Repository

Archives and Manuscript Division
National Library of Scotland
George IV Bridge
Edinburgh EH1 1EJ
0131 623 3700