Referee's report by Nevill Francis Mott, on a paper 'The electrical conductivity of stannous sulphide' by John Stuart Anderson and M C Morton Sectional Committee: Physics Recommended for publication in the 'Proceedings of the Royal Society of London'. The paper is rather diffuse in style. Considers the paper more suitable for the Transactions of the Faraday Society. Contains extra question - 'Is there any information contained in the paper which likely to be of value to the enemy?' Referee replies no. [Published in the 'Proceedings of the Royal Society of London'] No received date. [1944]