Referee's report by Robert Whytlaw-Gray, on a paper 'The persistence of the liquid state of aggregation above the critical temperature. The system ethylene' by Otto Maass and A L Geddes Sectional committee: Chemistry Recommended for publication in Proceedings, in part. The authors 'make a strong case for their views' and although these might not be acceptable to some, it is still a question of importance. The paper could be shortened very considerably.The paper would gain more clarity if it were condensed. [Published in Philosophical Transactions A, 1937]. Endorsed on verso as received 9 October 1936. 8 October 1936