making of the ‘Kitchener army’ during the Great War. The customs of the various officers’ messes were but a small part of this mass of custom which does so much to bind the whole army together. An army obviously possesses organisation, generally in a very high degree. The formal continuity of its existence enables the organisation impressed upon it by external authority to acquire all the strength that custom alone can give; while its material continuity enables its organisation to generate, in the individual soldiers, habits through which the inferior members are raised, as regards the moral qualities required for efficiency in the field, towards the level of the best. The organisation of the whole army has two aspects and two main functions; the one is executive, the securing of the co-ordination of action of the parts in the carrying out of the common plan; the other is recipient and deliberative, the co-ordination of the data supplied by the parts through deliberation upon which the choice of means is arrived at. Deliberation and choice of means are carried out by the commander-in-chief and his staff, the persons who have shown themselves best able to execute this part of the army’s task. It is important to note that, in the case of such an army as we are considering, the private soldier in the ranks remains a free agent performing truly volitional actions; that he in no sense becomes a mechanical agent or one acting through enforced or habitual obedience merely. He wills the common end; and, believing that the choice of means to that end is best effected by the appropriate part of the whole organisation, he accepts the means chosen, makes of them his proximate end, and wills them. This is the essential character of the effective organisation of any human group; it secures that while the common end of collective action is willed by all, the choice of means is left to those best qualified and in the best position for deliberation and choice; and it secures that co-ordination of the voluntary actions of the parts which brings about the common end by the means so chosen. In this way the collective actions of the well-organised group, instead of being, like those of the simple crowd, merely impulsive or instinctive actions, implying a degree of intelligence and of morality far inferior to that of the average individual of the crowd, become truly volitional actions expressive of a degree of intelligence and morality much higher than that of the average member of the group: i.e. the whole is raised above the level of its average member; and even, by reason of exaltation of emotion and organised co-operation in deliberation, above that of its highest members.