Referee's report by Albert George Hadcock, on a paper 'Explosion waves and shock waves. III. The initiation of detonation in mixtures of ethylene and oxygen and of carbon monoxide and oxygen' by W Payman and H Titman Sectional Committee: Mathematics Recommended for publication in the 'Proceedings of the Royal Society of London'. Suggests it be stated if the gases were dry or humid. Refers to work by William Arthur Bone, Reginald P Fraser, Alfred Charles Glyn Egerton and S F Gates. [Published in the 'Proceedings of the Royal Society of London'] Endorsed on verso as received 11 June 1935. [June 1935]