Referee's report by John Sealy Edward Townsend, on two papers 'Ionization, excitation, and chemical reaction in uniform electric fields I - The Townsend coefficient of ionization' and 'Ionization, excitation, and chemical reaction in uniform electric fields II-The energy balance and energy efficiencies for the principal electron processes in hydrogen' by K G Emeléus, R Winstanley Lunt and C A Meek Sectional Committee: Physics Recommended for publication in the 'Proceedings of the Royal Society of London'. Gives thorough criticism of the papers and conclusions drawn. Finds part II especially to contain nothing new. Refers to work of Nevill Francis Mott, Harrie Stewart Wilson Massey, Robert Bigham Brode, John Sealy Edward Townsend, F Lloyd Jones, P Johnson, J E Keyston, Frans Michel Penning, F B Pidduck and Rudolf Seeliger. [Published in the 'Proceedings of the Royal Society of London'] Endorsed on verso as received 21 December 1935. [December 1935]