Correspondence between Fabyan and John Dane concerning the sale of Dane's collection of books by Francis Bacon to Fabyan in 1920, including lists of titles; Correspondence, prospectuses, and single sheet material on shorthand and spelling reform, 1859 to 1893, including the Pitman system; Correspondence to and from Charles W. Hopper, an advocate of the Baconian theory, and a sampling of his writings and ciphers.