When the motive temperament is in the ascendency, the character is marked by an almost uncontrollable desire for physical exercise. This temperament demands activity of body as well as brain, and the occupation should be such as will combine both. The vital temperament on the other hand is more inclined to sedentary habits, and is capable of doing an immense amount of mental work without breaking down. It seems to thrive best when loaded with responsibilities of a mental character. The mental temperament on the other hand will display great brilliancy of intellect and versatility of talent, but is in constant danger of a physical collapse unless constantly subjected to conditions favorable to recuperation. To subject a person of the delicately organized and sensitive mental temperament, for a long period of time, to the hardships and privations of an occupation requiring exposure and severe muscular exertion is the height of cruelty and folly. A person of the extreme vital temperament, under the same conditions, would find life a weary burden, though a limited experience in muscular exercise, under conditions favorable to health, would be beneficial to both. On the other hand, the motive temperament, confined in an office or room to books and study, with insufficient exercise, is in much the same condition of misery as a caged bird. Temperament, quality, and capacity having been duly considered, the ability of an individual in any given direction, depends upon the special development of the organs of the brain. The special sense of each individual is determined by an examination of the special organs of the brain. And it is upon this special development, in the case of every man, that his prerequisites for success depend, namely, the ability to do much good work, the remuneration for his services, and the pleasure derived from the occupation. I desire to call your attention to some examples of special ability, which are familiar enough to the experience of most of you to be accepted without argument. There are those who are gifted in the sense of touch above their fellows, who can judge of the quality of goods in the dark. There are others blest with penetrating eyesight. Others with a sense of hearing most acute. Also those with nice discriminating sense of taste and smell. These distinctions for a long time were regarded as the five senses of man, and he was believed to have only those five avenues of perception. Phrenology, however, subdivides these and adds others, vastly increasing the number of the sources of knowledge and the springs of human action.