Hacker's notes, transcripts of letters, miscellaneous Comprising: Letters between Pearson and R A Fisher, 1914-1919 Letters between Pearson and W S Gosset, 1916 Hacker's abstracts of Pearson's writings, 1883-1908 Letters between Pearson and G Udney Yule, 1893-1905 Envelope labelled "Sarah's labels for cabinet" Hacker's notes on Olive Schreiner transcripts Manuscripts of some of R J Parker's essays, lent by R J Parker's daughter to Hacker Correspondence between Hacker and UCL Library, 1971 Letters to Hacker re: Olive Schreiner, 1962-1966 Hacker's notes on 'Heritage' and 'Fanny and William' Tss of article on Hubert Hervey, from the 'Rhodesia Herald', 4 Nov 1960 Envelope entitled "oddiments-dates want ascertaining", containing: Notes on Kasmiri language Description of Dr Kahn's anatomical museum Note (originals) on Galton's anthropometric data Notes about snails Photograph of graph of 'Curve of fertility in Man' Folder entitled "HSH's notes of various sorts" including notes of Pearson's activities, 1881-1890. 1883-1971