ABSTRACT
No matter how we choose to approach the question of the origin of man, this much must be taken as certain, namely that from an anatomical and physiological point of view he belongs to the animal kingdom. Palaeontology teaches us that in earlier days men existed of a lower morphological type than the men of to-day ; and history shows that man has progressed at least in the sense of attaining more com plete knowledge. It is a familiar quarrel whether the difference between the mentality of man and the mentality of animals is one of genus or merely of degree. But the difference between the point of view from which each side appraises the mental characteristics of men and animals is too great to permit the bringing about of any rapid recon ciliation between the two divergent opinions. In the course of this essay there have been many instances of characteristics common to both men and animals ; instances which make it possible on the ground of psychological data to rank the two together. Nevertheless, it must not be forgotten that men possess certain mental qualities possessed by no animal, and this fact indicates a difference between the two which, in some respects, is fundamental.
