Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to M. le Directeur; La Maison de l'Institut de France, 185 Queen's Gate, S.W.7. In replty to M. le Directeur's letter, sends Professor H. Hartman's tickets for the various ceremonies in connection with the Lister Centenary Celebrations. Also encloses two copies of a pamphlet concerning Lord [Joseph] Lister, and asks le Directeur to hand one to Professor Harman and one to Dr Bazy. 31 March 1927