Referee's report by John Herbert Parsons, on a paper 'Comparative studies on the physiology of the iris. -I. Selachians' by John Zachary Young Sectional Committee: Zoology Recommended for publication in the 'Proceedings of the Royal Society of London'. The paper should be published at the same time as part two, which contains an interesting discussion of the anomalies. [Published in the 'Proceedings of the Royal Society of London' B, 1933] Endorsed on verso as received 1 November 1932. [November 1932]