Referee's report by James Chadwick, on a paper 'The energies of nuclear reactions' by Harold Albert Wilson Sectional Committee: Physics Recommended for publication in the 'Proceedings of the Royal Society of London', with hesitation. The paper contains only arithmetic, with no attempt to explain the interesting reaction, but does not recommend rejection. [Published in the 'Proceedings of the Royal Society of London'] Endorsed on verso as received 30 July 1935. [July 1935]