We will not dwell upon the volitive as psychical organs, except to show that, when their influence is transmitted to the body, they act as physiological organs, and thus demonstrate that all parts of the brain have their physiological, as well as mental functions. When Andrew Jackson uttered with great emphasis the memorable words, "BY THE ETERNAL," the effect was like a shock from a galvanic battery, thrilling the cells in his own body, and paralyzing with fear every one in Calhoun's organization. This is an illustration of the power or range of action of these faculties. Breadth or copiousness is illustrated in Gen. Grant's reply, "I PROPOSE TO FIGHT IT OUT ON THIS LINE, IF IT TAKES ALL SUMMER." Such a temperament has a profusion of constitutional power, great durability of the life-force, and, in our opinion, the combined height and breadth of this region correctly indicate the natural hardihood of the body and its retentiveness of life. No one need doubt its influence upon the sympathetic system, and, through that system, its power over absorption, circulation, assimilation, and secretion, as well as the voluntary processes. Mental hardihood seems wrought into concrete organization. It checks excess of glandular absorption, restrains the impulses of tumultuous passion, tones and regulates the action of the heart, and helps to weave the strands of organization into a more compact fabric. The toning energies of the volitive faculties are better than quinine to fortify the system against miasma or malaria, and they co-operate with all tonic remedies in sustaining organic action. Fig. 91 is a portrait of Prof. Tyndall, the eminent chemist, whose likeness indicates volitive innervation, showing great strength of character and of constitution; he is an earnest, thorough, and intense mental toiler; ambitious, but modest; brilliant, because persevering; diligent in scientific inquiry, and who follows the star of truth, whithersoever it may lead him. The expression of his countenance indicates his honest intentions, and displays strength of conscientious purpose; his physical constitution may be correctly interpreted in all of its general characteristics by the analysis of his energetic temperament, the great secret of his strength and success.
We desire to offer one more illustration of a marvelous blending of this temperament with large mental and emotional faculties. Fig. 92 is a representation of the martyred President Abraham Lincoln. During an eventful career, his temperament and constitution experienced marked changes, and while always distinguished for strength of purpose and corresponding physical endurance, he was governed by noble, moral faculties, manifesting the deepest sympathy for the down-trodden and oppressed, blending tenderness and stateliness without weakness, exhibiting a human kindness, and displaying a genuine compassion, which endeared him to all hearts. He was hopeful, patriotic, magnanimous even, while upholding the majesty of the law and administering the complicated affairs of government. The balances of his temperament operated with wonderful delicacy, through all the perturbating influences of the rebellion, showing by their persistence that he was never for a moment turned aside from the great end he had in view; the protection and perpetuation of republican liberty. His life exhibited a sublime, moral heroism, elements of character which hallow his name, and keep it in everlasting remembrance.
We have treated the brain, not as a mass of organs radiating from the medulla oblongata as their real center, but as two cerebral masses, each of which is developed around the great ventricle. We have freely applied an easy psychical and physiological nomenclature to the functions of its organs, knowing that there is no arbitrary division of them by specific number, for the cerebrum, in an anatomical sense, is a single organ. The doctrine of cerebral unity is true, and the doctrine of its plurality of function is true also. Whatever effect an organ produces when acting in entire predominance, is regarded as the function of that organ and is expressed by that name. Although our names and divisions are arbitrary and designed for convenience, yet they facilitate our consideration of the psychical, and their corresponding physiological functions. Every cerebral manifestation denotes a psychical organ, and in proportion as these acts are transmitted to the body it becomes a physiological organ. We have ventured to repeat this proposition for the sake of the non-professional reader, that he may be able to distinguish between' the two results of the manifestation of one organ. The transmission of the influence of the brain into the body enables the former to act physiologically, whereas, if its action were confined within the cranium, it would only be psychical. In the language of Prof. J.R. Buchanan, "every organ, therefore, has its mental and corporeal, its psychological and physiological functions—both usually manifested together—either capable of assuming the predominance." We have already seen to what degree the Will operates upon the organism, or how "the soul imparts special energy to single organs, so that they perform their functions with more than usual efficiency," and thus resist the solicitations of morbific agents. Doubtless our best thoughts are deeply tinged by the healthful or diseased conditions of such organs as the stomach, the lungs, the heart, or even the muscular or circulatory systems, and these impressions, when carried to the sensorium, are reflected by the thoughts, for reflex action is the third class of functions, assigned to the cerebrum. These reflex actions are either hygienic and remedial, or morbid and pernicious. Hence, it is philosophical not only to interpret the thoughts as physiological and pathological indications, but to consider the cerebrum as exerting real hygienic and remedial forces, capable of producing salutary reparative, and restorative effects. When a boiler carries more steam than can be advantageously employed, it is subjected to unnecessary and injurious strain, and is weakened thereby; so, when the body is overtasked by excessive pressure of the volitive faculties, it is prematurely enfeebled and broken down. There are many individuals who need to make use of some sort of safety valve to let off the surplus of their inordinate ambition; they need some kind of patent brake to slacken their speed of living; they should relieve the friction of their functional powers by a more frequent lubrication of the vital movements, and by stopping, for needed refreshment and rest, at some of the many way-stations of life.
THE ENCEPHALIC TEMPERAMENT.
The encephalic temperament is distinguished by prominence and breadth of the forehead, or by a full forehead associated with height and breadth at its coronal junction with the parietal bones, and extending toward the volitive region. (See Fig. 10, the space between 1 and 2 represents the coronal region, 1 indicating the frontal bone, and 2 the parietal). Prominence and great breadth of the forehead display analytical, i.e., scientific powers applicable to concretes, whereas a fair intellect, associated with a preponderating development of the coronal region, indicates analogical powers, i.e., faculties to perceive the relation and the agreement of principles. The former classifies and arranges facts, the latter invests them with moral and spiritual import. The one treats of matter, its physical properties, and chemical composition, the other of thoughts and intentions which involve right and wrong, relating to spiritual accountability. The intellect is employed upon an observable order of things, while the emotive faculties arrange the general laws of being into abstract science.
Fig. 93, a portrait of Prof. Tholuck, is a remarkable example of an encephalic organization. Figs. 72 and 79 fairly indicate the effects of undue mental activity, the intellect causing vital expenditure resulting in the devitalization of the blood. While the intellect displays keen penetration, subtle discrimination, and profound discernment, the emotions exhibit intense sensitiveness, acute susceptibility, and inspirational impressibility. The encephalic temperament is characterized by mental activity, great delicacy of organization, a high and broad forehead, expressive eyes, fine but not very abundant hair, great sensitiveness, refined feelings, vividness of conception, and intensity of emotion. If the brain is developed on the sides, there is manifested Ideality, Modesty, Hope, Sublimity, Imagination, and Spirituality. If the brain and forehead project, the Perceptive, Intuitive, and Reasoning faculties predominate. If it rises high, and nearly perpendicularly, Liberality, Sympathy, Truthfulness, and Sociability are manifested. When the emotive faculties are large, Faith, Hope, Love, Philanthropy, Religion, and Devotion characterize the individual. It is an artistic, creative, and aesthetic temperament, beautiful in conception and grand in expression, yet its sensitiveness is enfeebling, and its crowning excellence, when betrayed by the propensities, trails in defilement. Its purity is God-like, its debauchment, Perdition!
Fig. 94 is the likeness of Prof. George Bush. His forehead is amply developed in the region of Foresight, Liberality, Sympathy, Truthfulness, and Benevolence; his mouth expresses Amiability and Cheerfulness, and the whole face beams with Kindness and Generosity. This philanthropist, who is both a preacher and an author, has published several works upon theology, which distinguish him for great research and originality.