Referee's report by Nevil Vincent Sidgwick, on a paper 'The electronic structure of some polyenes and aromatic molecules. VI. Phenylethylene, stilbene, tolane and the phenylmethyl radical' by W G Penney and G J Kynch Sectional committee: Chemistry Recommended for publication in Proceedings, in full. The results will be of great interest to chemists and physicists if the calculations are sound. In this case, the conclusions can be checked by experiment which adds confidence to the results. [Published in Proceedings of the Royal Society A, 1938]. Endorsed on verso as received 9 December 1937. 5 December 1937