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Herschel, Sir John Frederick William (1792-1871) Knight, astronomer
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Autograph letter, signed, from Herschel to Rev. John William Whittaker, from Slough

Tells of work in progress; books on algebra, translation of Lacroix. Also discusses the polishing of mirrors for Herschel's father's telescope. Mentions mutual acquaintances, discusses the actions of Wood, the Master of St John's, and tells of a visitor with an algebraic equation

Herschel, Sir John Frederick William (1792-1871) Knight, astronomer

Notebook

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

Herschel, Sir John Frederick William (1792-1871) Knight, astronomer

Notebook

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

Herschel, Sir John Frederick William (1792-1871) Knight, astronomer

Autograph letter, signed, from Herschel to Rev. John William Whittaker, undated

Mentions death of Clark, the support Herschel can offer to Henslow in the forthcoming elections at Cambridge (1) and the settling of an account.

(1) Probably refers to the election of John Stevens Henslow to the chair of Mineralogy in 1822

Herschel, Sir John Frederick William (1792-1871) Knight, astronomer

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