Referee's report by Charles Galton Darwin, on a paper 'The collision of slow electrons with atoms. II.—General theory and inelastic collisions' by Harrie Stewart Wilson Massey and C B O Mohr Sectional Committee: Physics Recommended for publication in the 'Proceedings of the Royal Society of London'. Cannot be shortened without loss of value. [Published in the 'Proceedings of the Royal Society of London' A, 1933] Endorsed on verso as received 21 September 1932. [September 1932]