Referee's report by Edgar Johnson Allen, on a paper 'Directional control of fish movement' by James Gray Sectional Committee: Zoology Recommended for publication in the 'Proceedings of the Royal Society of London'. Suggests a mathematical physicist be asked to look at the first paper in the list of refereces, by the same author, as the methods of present work are based on those of the earlier one. [Published in the 'Proceedings of the Royal Society of London' B, 1933] Endorsed on verso as received 4 April 1933. 3 April 1933