and emotion in particular reaches back toward primitive organism, it is likely, on merely general grounds, that fear is the more ancient and original emotion, though anger was closely subsequent. The general conditions of life at the first would demand the development of fear more imperatively than anger. Certainly, however, both emotions are sufficiently primitive, as is shown by their being so ingrained and dominant forces in the whole range of lower psychic life. All higher animals, moreover, are peculiarly sensitive to and observant of signs of anger and fear. Rarey, a most excellent judge, made it an axiom of his method that horses are extremely acute in detecting either fear or anger in those who deal with them, and this is also noticeably true of animals in general. These are also the emotional attitudes which are earliest interpreted by children. Now what is soonest, easiest and surest interpreted by psychisms above the lowest may be taken to be fundamentally primitive and such are fear and anger. To discover with readiness and certainty the emotional states of organisms about them, because these states are the motives of very important activities, is clearly an advantage early gained in the struggle of existence. It means preparedness, and there is a nascent anger to break forth against the fearful, or fear or counter-anger prepared against the fear discerned or suspected. The inter-related activity of these two emotions is the chiefest and most interesting spectacle we see in all lower psychic phases.