Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Sir John Rose Bradford, KCMG, FRS Informs Sir John Rose Bradford that Professor [Charles James] Martin, who was asked to report on the papers by [Richard R.] Armstrong on immunology ['Studies on the Nature of Immunity Reaction, I. An Experimental Study of Pneumococcal Immunity'; II. 'A Comparison of the Antigenic Properties of Sensitised and Raw Pneumococcal Antigen' and III. 'The Possible Enzymic Nature of Pneumococcal Antigen'], thinks that Professor [John Charles Grant] Ledingham is a more suitable referee as he knows more about the subject, and recommends that Ledingham report on the papers instead. 9 May 1925