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Sketch of the eclipse of the sun, 1820; handwritten "explanation of plate"; sketches including grain worms, root worms, dust brands of wheat; title jacket for "Prospectus Operis Botanici" by Joseph Plenck (1788); short note describing Bauer's sketch of 2 December 1829.

Kew Observatory Sunspot measurements from 24 January 1864 to 9 April 1872.

'Analysis of language, and the symbols of the worship of the Sun' by John Skinner, author's holograph MS. Profusely illustrated with pen- and wash-drawings of Egyptian and other antiquities, etc, c 1830.

Papers of Professor Raphael Meldola, [1866-1907], comprising notes on experiments in qualitative analysis at the Royal College of Chemistry, [1866]; physical lectures by Dr Tyndall, [1867]; course on physics by Dr Guthrie, 1873; notes as a Demonstrator at Science Schools, 1877-1878; research notes, 1879, 1900; diary of eclipse expedition, 1875; lecture notes on organic chemistry, 1885-1890, including coal tar products, 1890; laboratory notes, 1904-1906; correspondence concerning the portrait fund for Sir John Evans, 1899-1900; Perkin Memorial Fund, 1906-1907, including letters from several German chemists; correspondence about a Maccabeans Dinner, 1905; general correspondence, 1862-1915; correspondence concerning a memorial for Herbert Spencer, 1904-1908; and a memorial for James Sylvester, 1897-1900; correspondence on the subject of thinnings in Epping Forest, 1894-1895; a scientific autograph collection, 1864-1907; plus additional autographs and press cuttings 1889-1915.

Papers of Professor Alfred Fowler, 1903-1935, including observations on the sun, 1903-1910; laboratory notebooks, 1906-1913; telescope design, 1906-1910; miscellaneous correspondence, 1916-1935.