Referee's report by Harold Baily Dixon, on a paper 'Researches upon brown coals and ignites. Part I.— Heat treatment at temperatures below 400° C. as a possible method for enhancing their fuel values' by William Arthur Bone Sectional Committee: Chemistry Recommended for publication in the 'Proceedings of the Royal Society of London'. Suggests shortening the beginning of the introduction 'as brevity is now a virtue'. Corrects a mis-quote from the International Geological Congress. [Published in the 'Proceedings of the Royal Society of London' A, 1921] Endorsed on verso as received 23 February 1921. [February 1921]