Referee's report by Herbert Harold Read, on a paper 'Red sandstones. An experimental study of the conditions under which they may be formed' by Robert John Strutt, Lord Rayleigh Sectional committee: Chemistry Not recommended for publication in Proceedings. He is writing as a geologist and therefore believes the author is too ambitious in his title. From a geological point of view, it is not worth publication by the Royal Society. It would be better sent as a note to Nature. [Published in Proceedings of the Royal Society A, 1940 with the amended title 'Experimental production of red and yellow sandstones from chalybeate water']. Date received not given. 29 June 1945