Referee's report by Alan Sterling Parkes, on a paper 'Physical and emotional periodicity in women' by R A McCance, M C Luff and E E Widdowson Sectional committee: Physiology The paper is a 'good one of its kind', but it is matter of policy whether papers of this kind should be published by The Royal Society. Modifications are needed. [Not published]. Endorsed on verso as received 18 February 1937. February 1937