Referee's report by Alfred Fowler, on a paper 'The absorption spectra of some polyatomic molecules containing methyl and ethyl radicals' by Harold Warris Thompson Sectional Committee: Physics Recommended for publication in the 'Proceedings of the Royal Society of London'. Finds the experimental work carefully conducted. Does not feel competent o give an opinion on the interpretation, suggests a physical chemist such as Thomas Martin Lowry be asked to referee. Suggests stating the chemical formulae of the compounds investigated. Suggests adding a summary description of the photographic plates. Refers to work by Henri and Lasereff, which might be of interest to the authors. [Published in the 'Proceedings of the Royal Society of London'] Endorsed on verso as received 14 March 1935. [March 1935]