Correspondence R Contains correspondence on visualisation and mental imagery from: Rae, Henry, May 1881 Rix, Herbert, Jun 1880, enclosing diagrams and explanations of Miss Mary Wilks' visualised numerals Romanes, Charlotte (2), Dec 1879 - Jan 1880 Romanes, Ethel, Jan 1880 Ryland, Louisa A (2), Mar 1880 - Apr 1880 Ryland, Susan, Nov 1879 1879-1881