Referee's report by George Barger, on a paper 'Studies on the formation of complex oxidation and condensation products of phenols. A contribution to the investigation of the origin and nature of humic acid. Part I. -Studies of the reactivity of simple monocyclic quinones' by H G H Erdtman Sectional Committee: Chemistry Recommended for publication in the 'Proceedings of the Royal Society of London'. Suggests considerably shortening the text where possible, and breaking it into three papers. Suggests the experimental description be shortened along similar lines adopted by the Chemical Society. The references are not always fully complete. [Published in the 'Proceedings of the Royal Society of London' A, 1933] Endorsed on verso as received 10 March 1933. [March 1933]