Referee's report by Frederick Alexander Lindemann, Viscount Cherwell, on a paper 'The constitution of the secondary spectrum of hydrogen' by William Mitchinson Hicks Sectional Committee: Physics Not recommended for publication in the Proceedings of the Royal Society of London. Finds the author's use of terminology unusual and difficult to follow. As the paper represents a great deal of labour, suggests the Council be aksed if they would allow an abstract to be printed. [Not published] Endorsed on verso as received 13 February 1924. [February 1924]