Referee's report by Vernon Herbert Blackman, on a paper 'The structure of ‘ineffective’ nodules and its influence on nitrogen fixation' by H K Chen Sectional committee: Botany Recommended for publication in Proceedings. Earlier work of this kind has appeared in Proceedings, so the work should be published there. It is heavily illustrated, and some of the digure could be omitted. The title could be re-named. [Published in Proceedings of the Royal Society B, 1940]. Endorsed on verso as received 16 April 1940. 15 April 1940