Includes: letters from Marshall Hall (1891-5) regarding alpine activities; B. A. Clough, Newnham, c.1892; letters from Mrs E [Emma] Darwin (widow of Charles Darwin, December 1895, annotated 'at 85'), F. [Francis/ Frank] Darwin and G. H. [George Howard] Darwin (Oct 1907) regarding medical help and dinner invitations; letter from A. T. Quiller-Couch regarding Corsican wild sheep, with a sketch; postcard from granddaughter; letters of thanks for 'Notes from a Knapsack' from correspondents such as W. Greathead and W. M. Palmer; letter and Christmas card from W. W. Rouse Ball, 1924-5; a verse ‘Lines for luck’ regarding 'Notes from a Knapsack' and letters regarding Charles Lamb dinners. Also includes a letter from A. F. R. Woolacton (name unclear) enclosing a sketch by 'Newton' marked 'Camp Advent Bay', 12 July 1864.