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Manuscript Note from the Photographic Experiments of Sir John Herschel, 1842

Inventory Number: 65918
Object Type:
Persons: Sir John Frederick William Herschel (Writer)
Date Created: 1842
Accession Number: 1928-71
Brief Description: In packet 33 with 3 experimental mercurial photographs, which are light brown and dated December 17 and 19, 1842. The note is thus presumably contemporary with them. There is no black specimen.

For fuller descriptive and historical commentary see narratives.
Primary Inscriptions: The note reads: 'Mercurial Photographs containing no Silver or Gold; | The Black Specimen is prepared by the process described in Art.229 of Sir J. Herschel's paper on Photography Phil. Trans. 1842, Part 2; | The Brown Specimens by processes not hitherto described' [in Herschel's hand].
Provenance: Presented by Miss Herschel and Lady Lubbock in 1928. They were the two surviving and youngest children of Sir John Herschel (Francisca and Constance).
Collection Group: Herschel's Photographic Experiments
Material(s): Paper


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