Interesting early pamphlet, attributed to J.N.D. in this article in C.B.R. http://www.biblicalstudies.org.uk/pdf/cbr/34_53.pdf , but maybe more likely by G.V. Wigram. Evidence in favour of GVW includes the fact that the publisher, Snook, was GVW's valet, mentioned in Interesting Reminiscences and also in Peter Embley's book on the Brethren Origins.