Referee's report by Rowland Harry Biffen, on a paper 'A quantitative investigation of the bacterial and protozoan population of the soil, with an account of the protozoan fauna' by D Ward Cutler, Lettice M Crump and H Sandon Sectional committee: Botany Recommended for publication in Philosophical Transactions. It is 'of fundamental importance and records an immense piece of work'. However, the paper should be re-written and condensed prior to publication. [Published in Philosophical Transactions B, 1923]. Endorsed on verso as received 24 July 1922. July 1922