Referee's report by Alfred Fowler, on a paper 'The luminescence of solid nitrogen under cathode ray bombardment' by John Cunningham McLennan, H J C Ireton and K Thomson Sectional Committee: Physics Recommended for publication in the 'Proceedings of the Royal Society of London'. [Published in the 'Proceedings of the Royal Society of London' A, 1927] Endorsed on verso as received 28 June 1927. [June 1927]