Correspondence with Jeans, 1901-1907 Letters, 1901-1907, documenting Jeans' treatment for tuberculosis at Ringwood Sanatorium, Hampshire and Mundesley Sanotorium, Norfolk, where he completed work on the theory of gases. Correspondents - the majority of whom are fellow scholars of Trinity College, Cambridge - include G H Hardy FRS (1877-1947) and Adam Sedgewick FRS (1854-1913). 1901-1907