perhaps, be regarded that the evolution of fear is not through absolute decrease in intensity, but an increase of conscious capacity, whereby greater definition of object becomes possible and coincident with fear-pain of original quantity. The complete determination of this question must then await a fuller analysis, but the relation to individual capacity in the evolution of fear remains apparent. Whatever may be the absolute quantity and intensity of the fear phenomenon, its relative quantity and intensity changes very greatly. The number of adaptive degrees of fear which are ultimately evolved and of which any very high mind is susceptible, is quite beyond our present means of psychological analysis. We have no phobometer to register all the gradations, other than the popular usage of language, but between “I was scared just the least bit,” and “I was scared stiff,” or “scared to death,” there is certainly a vast number of intermediaries. Terror is an intensive term denoting strong fear, and a terrible fright is a redundancy for extreme fear. By the use of adjectives and various qualifying phases we roughly denote a number of fear degrees, but scientific precision is wholly lacking. Such expressions as “I have very little fear of him,” “I fear him a little,” “I fear him greatly,” “I fear him very much,” convey a meaning indeed, but no exact measurement is indicated. Terror is often used as a term not merely for fear in general, but for fear which paralyzes by its force. The individual is often “rooted to the spot” by terror, he loses all power of motion and becomes as an inert mass. With animals even of the lower grades this is doubtless often a pathological manifestation. We find that predatory animals are often furnished with apparatus to inspire benumbing fear in their victims. Various means, as inflation of size, strident noises, etc., are employed with great effect. On the other hand, we find that predacious animals seek to reduce the stimulus of fear in their victims by quieting and alluring methods. Both hypertrophy and atrophy of fear are disadvantageous, and we should see then in paralyzing terror an instance of over-development of useful function which produces the direct opposite of the normal fear. Fear, the great means of salvation to all weaker organisms, is also in its highest intensities taken advantage of by enemies. Hence the due graduation and restraint of fear becomes one of the most important lines of mental evolution for the organism preyed upon, but the over stimulation or undue weakening of the fear function in its prey becomes a most important object and advantage for the predacious animal. This evolution is often by the individual disadvantageous variation when this is advantage to some other organism; and, as living beings are soon divided into the two classes, those who flee and those who pursue, the destroying and preserving of the chief psychological defence becomes a leading form of psychic growth of a