Referee's report by Robert Robertson, on a paper 'Estimation of the combustion products from the cyliner of the petrol engine III' by Alfred Rene Jean Paul Ubbelohde and Alfred Charles Glyn Egerton Sectional committee: Chemistry The paper should be reduced in length. [Published in Philosophical Transactions A, 1935]. [Title changed to 'Estimation of the combustion products from the cylinder of the petrol engine and its relation to "knock"]. Endorsed on verso as received 9 October 1934. October 1934