Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Sir William [Jackson] Pope, Chairman of the Chemistry Committee and FRS Informs Sir William [Jackson] Pope that a fifth part of the research by [E. Frankland] Armstrong and [T. P.] Hilditch on 'A study of catalytic actions at solid surfaces' has been communicated. Notes that parts two, three and four of this research were not sent to a referee, however, suggests that part five be sent to a referee. 3 June 1920