Referee's report by Geoffrey Ingram Taylor, on a paper 'A crystallographic investigation of glacier structure and the mechanism of glacier flow' by Max Ferdinand Perutz and Gerald Seligman Sectional Committee: Physics Recommended for publication in the 'Proceedings of the Royal Society of London'. Suggests shortening the discussion. Finds the discussion difficult to understand. Discusses the statements made in the discussion. [Published in the 'Proceedings of the Royal Society of London'] Endorsed on verso as received 17 April 1939. 4 April 1939