Referee's report by Cecil Drummond Ellis, on a paper 'Experiments on molecular scattering in gases. II.—The collision of sodium and potassium atoms with mercury' by L F Broadway Sectional Committee: Physics Recommended for publication in the 'Proceedings of the Royal Society of London'. Comments on the author's opinion regarding classical theory. Finds the arguments as they stand unconvincing. [Published in the 'Proceedings of the Royal Society of London' A, 1933] Endorsed on verso as received 12 May 1933. [May 1933]