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Contents:

1. An address to the young gentleman of the mathematical classes in the south African College at the Cape of Good Hope, December 1832

Contents:

1. Hyposulphurous and Paper (Using polarized light in analysis of crystals).

2. Early 'Chrystal' paper (pre-1819).

3. History of Math (two drafts).

4. Mathematical Papers

5. On Coloured Flames (16 numbered pages, a page of sketches of curves (transmitted intensity v. colour))

6. 15 pages of 'computations for optical papers of 1820' for absorption curves and apophyllite (3 varieties), Rochelle salt

Contents:

1. Lunar Theory

2. Determination of unknown functions

3. A few pages on Law of Refraction, apparently from the History of Math article, or possibly from 'isoperimetrical problem' as these two sheets appear to have been one.

4. Isoperimetrical problem

5. On the chemical action of the rays of the solar spectrum

6. Photographic MSS, with three pages of 5 interleaved in one spot.

7. Spectra (emission? absorption?) of photographic papers

8. Notes on the art of photography or the application of the chemical rays of light to the purposes of pictorial representation. (13 leaves, 1839)

Contents:

1. 'On the rotation in Plagiedial Quartz', Transactions of the Cambridge Philosophical Society, Vol 1, 43-52, read 17 April 1820.

2. 'On the Development of Tints', Transactions of the Cambridge Philosophical Society, Vol. 1, 20-41, read 24 February 1820.

More sketches here than in published papers with many pages crossed out entirely

Contents:

1. Draft of Lacroix translation. (An elementary treatise on the differential and integral calculus by S. F. Lacroix, translated by Herschel from the French and printed in 1816.) 85 sheets

Contents:

1. Double Star Catalogue, submitted by John Herschel whilst he was secretary of the Royal Society 1824-1825

Contents:

1. Draft review of works on geomagnetism by Gauss, Humboldt, and R. S. L. (himself?). 31 sheets 1 side each, mostly fair copy - little correction.

2. Draft review of Whewell's History of the Inductive Sciences. 64 pages lightly corrected, 5 or so heavily altered

Letters and picture (dated 1812-1955), documents relating to Herschel's 1839 paper, 'The Art of Photography', given to the Royal Society, (dated 1833-1979), Herschel's notebooks.