Memoranda, on a paper 'Mitotic activity in the adult female mouse, Mus musculus L. A study of its relation to the oestrous cycle in normal and abnormal conditions' by W S Bullough Sectional Committee: Physiology Communicated by John Hammond. The paper requires two referees, Alan Sterling Parkes has been suggested as one. John Charles Grant Ledingham suggests William Ewart Gye as second referee, and agrees to pass the paper if the reports are favourable. [Published in the Philosophical Transactions of the Royal Society] Endorsed on recto as received 13 March 1944. 10 March 1944