Referee's report by Francis Hugh Adam Marshall, on a paper 'On the occurrence of the oestrous cycle after X-ray sterilisation. Part III.— The periodicity of oestrus after sterilisation of the adult' by Alan Sterling Parkes Sectional Committee: Physiology Recommended for publication in the 'Proceedings of the Royal Society of London'. The results are not presented in the best statistical form. Suggests refering the paper to a statistician such as George Udny Yule. [Published in the 'Proceedings of the Royal Society of London' B, 1927] Endorsed on verso as received 10 March 1927. [March 1927]