She has often been on the verge of a love affair with some man who is professionally interested in something into which she has leaped for a short time. She raves about him, follows him, flatters and adores him, and then, before the poor fellow knows where he is at, she is out of love and off somewhere else. This mutability of affection has undoubtedly saved her from disaster. Were she not rich, M. would be one of the social problems that the social workers cannot understand or handle, e. g., there is a type who never sticks to anything, not because he is bored quickly, or is inefficient, but because he is at the mercy of the new and irrelevant. Without sufficient means he throws up his job and tries to get the new work he longs to do. Sometimes he fails to get it, and then he becomes an unemployed problem. This type of uncontrolled energy reaches its height in the manical or manic phase of the disease already described as manic depressive insanity. The "manic personality," which need not become insane, is characterized by high energy, vivacious emotions, rapid flow of thought and irrelevant associations. 4. The mesokinetic--medium or average in their energy (feeling and power)--run the range of the vast groups we call the average. This type is spurred on by necessity, custom and habit to steady work and steady living. Possessed of practical wisdom, their world is narrow, their affections only called out for their kindred and immediate friends. Their interests are largely away from their work and as a rule do not include the past or future of the race. Usually conservative, they accept the moral standards as absolute and are quick to resent changes in custom. They follow leaders cheerfully, are capable of intense loyalty to that cause which they believe to stand for their interests. Yet each individual of the mass of men, though he never rises above mediocrity, presents to his intimates a grouping of qualities and peculiarities that gives him a distinct personality.