Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society to Professor John Bretland Farmer FRS, Chairman of the Botany Committee 'Paper by W R Bottomley on "A bacterial test for plant accessories". Dr V H Blackman to whom this paper was referred, is in favour of publication in full in the Proceedings, subject to two slight verbal alterations and to a fuller explanation of the meaning of "virgin field" on page 8. Will the Chairman please say whether the paper should go forward, subject to these modifications?' 29 June 1915