Referee's report by Charles Robert Harington, on a paper 'Studies in insulin. I.—Kataphoresis of insulin alone and in presence of glucose with some reference to the question of an insulin-glucose reaction in vitro' by Frederick Oliver Howitt and Edmund Brydges Rudhall Prideaux Sectional Committee: Physiology Recommended for publication in the 'Proceedings of the Royal Society of London', if accompanied by other papers in the series. The value of the paper rests on the proof, which the referee finds inadequate. Suggests the authors provide adequate evidence. [Published in the 'Proceedings of the Royal Society of London' B, 1932] Endorsed on verso as received 20 June 1932. [June 1932]