Referee's report by Major Greenwood, on a paper 'Contributions to the mathematical theory of epidemics. II. —The problem of endemicity' by William Ogilvy Kermack and A G McKendrick Sectional Committee: Mathematics Recommended for publication in the 'Proceedings of the Royal Society of London'. Suggests some modifications to definitions, to make the paper more readable for the mon-mathematician. Suggests an experienced mathematician be sought for another opinion. [Published in the 'Proceedings of the Royal Society of London' A, 1932] Endorsed on verso as received 21 April 1932. 20 April 1932