Three years later he has ready the first two volumes of his new work, and the following year, 1745, a third volume. This work is the ›_Regnum Animale_›, (The Soul’s Kingdom). It is constructed upon a very grand plan, comprising not less than 17 parts. Of these, however, only the three mentioned above issued from the press, and they treat of the organs of the chest, abdomen, and skin, and of the senses of touch and taste.[50] Professor IMMANUEL TAFEL (Tübingen) in the middle of the 19th century afterwards published two more volumes of the manuscript. The first of these, Pars quarta, treats chiefly of the senses of smell, hearing and sight and the higher degrees of the soul’s activity; and the other, Pars septima, treats of the soul.[50 b] But simultaneously with the work in question SWEDENBORG wrote still another, namely, the great work on the brain, ›De Cerebro›.—In these works SWEDENBORG reached _the summit of his scientific career_, and they afterwards served as the foundation of the religious edifice to which he devoted the remainder of his life. The ›_De Cerebro_› of SWEDENBORG, just referred to, is a rather large work which treats of the brain from the anatomical, physiological, and philosophical standpoints. This work left by SWEDENBORG in Ms., has appeared in print only in part, namely, in the English translation by Dr. RUDOLF TAFEL, published in London in two volumes, 1882 and 1887, and entitled ›The Brain›. Although this edition comprises, as was said, only a portion of the whole work, it treats of both the cerebrum, cerebellum and medulla oblongata, as well as of the cranium and the membranes of the brain, but chiefly only in so far as their structure and function regard the activity of the soul. Without doubt SWEDENBORG’s main interest here centred on this subject, and therefore I shall give some intimations concerning how deeply SWEDENBORG has succeeded in seeing into the function of the cerebrum as the organ of the soul’s life.