Second referee's report by Douglas Rayner Hartree, on a paper 'Diffusion in absorbing media' by P S H Henry Sectional committee: Mathematics Recommended for publication in Proceedings. The author has re-arranged the paper so that no-one will make the same mistakes he did upon first reading.Some minor modifications may still be made. [Published in Proceedings of the Royal Society A, 1939]. Endorsed on verso as received 30 January 1939. 27 January 1939