Referee's report by Arthur Harden, on a paper 'A method of separating antibodies from serum proteins. Investigations on a protein-free antibody' by Max Frankel Sectional committee: Physiology Recommended for publication in Proceedings. The paper is satisfactory but the experiments are not documented fully enough. [Published in Proceedings of the Royal Society B, 1932]. Endorsed on verso as received 11 February 1932. February 1932