Referee's report by Eric Keightley Rideal, on a paper 'On the nature and permeability of chitin II—The permeability of the uncalcified chitin lining the foregut of homarus' by C M Yonge Sectional committee: Zoology Recommended for publication in Proceedings, in full. The author should reconsider his points of the penetration on dyes into materials. [Published in Proceedings of the Royal Society B, 1936]. Endorsed on verso as received 15 November 1935. November 1935