Technicality, however, is to be avoided as far as possible. Anthropology may need, like other new sciences, new terms for its new ideas, but the old words of plain English express all the very important elements of human nature. To the master of anthropology it is easy to take any word expressive of an element of human character or capacity and show from what convolution, what group of convolutions, or what part of a convolution the quality or faculty arises which that word expresses. An evening might be profitably spent with a class of students in tracing English words to their cerebral source. In expressing the functions of the brain by nomenclature, we are entering upon an illimitable science, and must hold back to keep within the limits of the practicable and useful. The innumerable millions of fibres and ganglion globules in the brain are beyond calculation, and their varieties of function are beyond all descriptive power. Geography does not attempt to describe every square mile of the earth's surface, nor does astronomy presume to know all the stars. In reference to the brain, psychic students will hereafter send forth ponderous volumes of descriptive detail, for which there is no demand at present. I willingly resign that task to my successors. A description which portrays the general character of an inch of convolution, or of a half inch square of the finer intellectual organs, is sufficiently minute for the purposes of a student. Acting upon these views, the following catalogue of psychic functions has been prepared, which is offered now not for the reader's study, as the multiplicity of detail would be embarrassing, but merely to give a general conception of the scope of cerebral psychology, and to show how extensive and apparently intricate a system may, by proper explanation of its principles, be made intelligible to all. [Illustration] Instead of attempting to master this catalogue and the psychic busts which are to be shown hereafter, the reader should approach the subject by familiarizing himself with the profile grouping here presented, leaving the catalogue and busts for future exposition. If radiating lines are drawn outward from the ear, the _general character_ of the groups thus formed is indicated in the drawing. The department marked Inspiration extends from the median line as shown to the interior of the hemispheres on the median line. The region of the appetites is marked as Sensual Selfishness, the tendency of which is antagonistic to that of the region marked Duty. CATALOGUE OF CEREBRAL ORGANS. 1. INTELLECTUAL. UNDERSTANDING.--Intuition, Consciousness, Foresight, Sagacity, Judgment, Wit, Reason, Ingenuity, Scheming, Imagination, Invention, Composition, Calculation, Somnolence. RECOLLECTION.--Memory (recent and remote), Time, System. PERCEPTION.--Clairvoyance, Phenomena, Form, Size, Distance, Weight, Color, Light, Shade, Order, Tune, Language, Sense of Force, Sensibility.