This little volume would sadly fail to convey its author's meaning if dogmatism stood in the way of persuasion, or authority seemed to be claimed for the tentative suggestions herein outlined. There is no immediate danger that Eugenic principles will suddenly rush society into extreme action. The probabilities are quite in the opposite direction. We shall continue to see what has always been observed by thinkers, namely, "Decency and custom starving truth, and blind authority beating with his staff the child which might have led him." Valuable experiments are delayed by prejudice, and Eugenists have only too good ground for complaint that the scientific spirit is thwarted by prejudiced opposition to new ideas. The very absence of dogmatism which characterises the genuine thinker serves as the basis of opposition in his experiments. Because he does not glibly guarantee universal success like a patent-pill advertiser nothing whatever is done to obtain a criterion of judging how far his reasonable proposals can succeed. The failure of all other attempts to improve the race may force upon the public the necessity of Eugenic experiments. As has been said more than once, philanthropy has failed, politics has failed, rescue work has failed, perhaps Eugenics may not fail, for it is based on the impregnable rock of science, it proceeds on the sound lines of prevention, it aims to start at the beginning of things, to build up a new race if not of supermen at least of sound healthy human beings. The lethal chamber is _not_ a Eugenic remedy. It is the last heart-broken despairing cry of the old unscientific system. It is the only final alternative to Eugenics. It means that man has failed. It has neither sense, sentiment, nor science for its justification. It substitutes murder for moral method. Eugenics on the other hand starts out with the principle that there is nothing so sacred as life. That the lethal chamber for the aged, diseased, infirm, and unfit is barbarous and immoral, that it is utterly indefensible, and would be absolutely ineffective if not ridiculously impracticable. There is not much need to waste further consideration on a project from which every healthy citizen naturally revolts. It has to be categorically repudiated lest it should be mistakenly regarded as a Eugenic proposal.