Copy letter from Herbert Rix, to Ernest Howard Griffiths, 12 Park Side, Cambridge Griffith's abstract cannot be sent to him until the next number of 'Proceedings [of the Royal Society]'' is made into pages. Paged copies in wrappers will be with Griffiths in about a month's time. The Society can send corrected slip copies to any journals Griffith would like to name, but they must go from the Society's office. 9 March 1893