his own in the end, are not the thoughts which he has stored in his perishable memory; but the fire of love and light which he has kindled in his heart. If this fire of life burns at his heart it will illuminate his mind, and enable the brain to see clear; it will develop his spiritual powers of perception, and cause him to perceive things which no amount of intellectual brain-labor can grasp. It will penetrate even the physical body, and cause the soul therein to assume shape and to become immortal. It is not to be supposed that the above truths will be at once accepted by every reader of the JOURNAL, except by such as have given deep thought to the true nature of man. Neither are they a subject for scientific controversy or disputation. A knowledge of the truth is not produced by disputations and quarrels, but only by direct perception, experience, and understanding. The conclusions which man arrives at by logic are merely productive of certain opinions, and these opinions are liable to be changed again as soon as the basis from which his logic started, changes. A real knowledge of spiritual truths requires a power of spiritual perception, which few men possess. Nevertheless, even our logical deductions, taking as a starting point that which we know to be true, will help us to arrive at the same conclusions at which the Hermetic philosophers arrived by the power of spiritual perception. [In the foregoing passage, Dr. H. professes to state doctrines derived from intuition or spiritual perception by the ancients, and also recognized to-day by spiritual perception. To me they appear as the results only of that sort of ancient SPECULATION, which recognized earth, air, fire, and water as the four chemical elements of all things. I do not find them sustained by the spiritual perception of those who have the intuitive powers to-day, nor by scientific investigation. The substance of the heart is _not the seat of life_. It is a merely muscular substance, and ceases all action when separated from its controlling ganglia. The vitality of the heart lies in its ganglia--in other words, in the nervous system, _in which alone is life_, and of which the brain is the commanding centre. That life resides exclusively in the nervous system is one of the established principles of physiology, which cannot be disturbed by any theories descending from antiquity, before the dawn of positive science. That the will resides in the blood and the heart, is about as near the truth as Plato's doctrine that the prophetic power belonged to the liver. If the region of Firmness in the brain be large, it will be strongly manifested, even though the heart be feeble, and as easily arrested as Col. Townsend's. But if the upper surface of the brain be diseased, or sensibly softened, the will power is almost destroyed, even if the plethoric, hypertrophied heart is shaking the head with