Second referee's report by Cyril Norman Hinshelwood, on a paper 'Metabolic changes which form the basis of a microbiological assay of nicotinic acid' by H McIlwain Sectional Committee: Physiology The paper can now be published. Drawings for the paper A.88 'The second virial coefficients of organic vapours' by J D Lambert, G A H Roberts, John Shipley Rowlinson and V J Wilkinson, have been sent separately. [Published in the 'Proceedings of the Royal Society of London'] Endorsed on recto as received . 30 August 1948