As was proved in a previous chapter (p. 120) artificial birth control was originally based on Atheism, and on a philosophy of moral anarchy. Further proof of this fact is to be found in the course of a most edifying dispute between two rival Neo-Malthusians. This quarrel is between Dr. Marie C. Stopes, President of the Society for Constructive Birth Control and Racial Progress, who is not a Doctor of Medicine but of Philosophy, and Dr. Binnie Dunlop, who is a Bachelor of Medicine: and when birth controllers fall out we may humbly hope that truth will prevail. Dr. Stopes maintains that artificial birth control was not an atheistic movement, whereas Dr. Binnie Dunlop contends that the pioneers of the movement were Atheists. The beginning of the trouble was a letter written by Dr. Stopes to the _British Medical Journal_, in which she made the following statement: "Dr. Martindale is reported in your pages to have given an address to medical women in which she pointed out that the birth control movement in England dated from the Bradlaugh trial in 1877. Had she attended the presidential address of the Society for Constructive Birth Control she would have learned that there was a very flourishing movement, centring round Dr. Trall in 1866, years before Bradlaugh touched the subject, and also a considerable movement earlier than that. This point is important, as 'birth control' has hitherto (erroneously) been much prejudiced in popular opinion by being supposed to be an atheistical movement originated by Bradlaugh." [108] Dr. Stopes, who has been working overtime in the attempt to obtain some religious sanction for her propaganda, is ready not only to throw the Atheists overboard, but also to assert that a flourishing movement for artificial birth control centred round the late Dr. Trall, who was a Christian. Her letter was answered by Dr. Binnie Dunlop as follows: