¶ When you wish to find some pure Alimentives, go to a restaurant that is famous for its rich foods. When you want to see several extreme Thoracics, drop into any vaudeville show and take your choice from the actors or from the audience. When you are looking for pure Musculars go to a boxing match or a prize fight and you will be surrounded by them. When looking for the Osseous attend a convention of expert accountants, bankers, lumbermen, hardware merchants or pioneers. All these types appear in other places and in other vocations, but they are certain to be present in large numbers any day in any of the above-named places. But when you are looking for this interesting little extreme thinker-type you must go to a library. We specify the reference room of the library because those who search for fiction, newspapers and magazines are not necessarily of the pure type. And we specify a day in summer rather than in winter so that you will be able to select your subjects from amongst people who are there in spite of the weather rather than because of it. Interested in Everything ¶ "I never saw a book without wanting to read it," said a Cerebral friend to us the other day. This expresses the interest every person of this type has in the printed page. "I never see a library without wishing I had time to go there and stay till I had read everything in it." The Book Worm ¶ So it is small wonder that such a one becomes known early in life as a "book worm." As a little child he takes readily to reading and won't take to much else. Because we all learn quickly what we like, he is soon devouring books for older heads. "Why won't he run and play like other children?" wails Mother, and "That boy ought to be made to join the ball team," scolds Father; but "that boy" continues to keep his nose in a book. He can talk on almost any subject--when he will--and knows pretty well what is going on in the world at an age when other boys are oblivious to everything but gymnasiums and girls. Old for His Years ¶ The "little old man" or "little old woman" of ten is always a Cerebral child. The Alimentives are the babies of the race and never entirely grow up no matter how many years they live. But the Cerebral is born old. From infancy he shows more maturity than other children. The "Teacher's Pet" ¶ His studiousness and tractableness lead to one reward in childhood, though it often costs him dear as a man. He usually becomes the teacher's favorite and no wonder: he always has his lessons, he gives her little trouble and is about all that keeps many a teacher at her poorly paid post. Little Sense of Time ¶ The extreme Cerebral often has a deficient sense of time. He is less conscious of the passage of the hours than any other type. The Muscular and the Osseous often have an almost uncanny time-sense, but the extreme Cerebral man often lacks it. Forgetting to wind his watch or to consult it for hours when he does, is a familiar habit of this type.