Referee's report by Frederick George Donnan, on a paper 'Studies in microcataphoresis - I—Technique' by H C Brown and J C Broom Sectional committee: Chemistry Recommended for publication in Proceedings, in full. The authors have made no account of the work of Powis. [Published in Proceedings of the Royal Society A, 1936]. Endorsed on verso as received 20 November 1935. November 1935