Dr. Sigmond’s own work, printed last year, is itself scarce, in consequence of having been suppressed or withdrawn from publication.[503] This circumstance, and the curiosity of its purpose, may render an exemplifying extract from it agreeable:—
“I have quoted,” says Dr. S., “the whole of Servetus’s theories verbatim. Those that relate to the phenomena of mind, as produced by the brain, will at this time have an additional interest, when Gall and Spurzheim have attracted the attention of philosophers to the subject. With some degree of boldness he has fixed upon the ventricles of the brain, and the choroid plexus, as the seat of that ray divine which an immortal Creator has shed upon man, and man alone. The awe and veneration with which such a subject must be approached, are increased by the conviction that though we may flatter our fond hopes with the idea that some knowledge has been gained, we are still lost in the same labyrinth of doubt and uncertainty that we ever were.
“After giving his description of the passage of the blood from the right ventricle of the heart through the lungs, to the left ventricle of the heart, he gives his reasons for his belief in his doctrine of the circulation, and observes that Galen was unacquainted with the truth. He then commences that most extraordinary passage upon the seat of the mind. The blood, he supposes, having received in its passage through the lungs the breath of life, is sent by the left ventricle into the arteries; the purest part ascends to the base of the brain, where it is more refined, especially in the retiform plexus. It is still more perfected in the small vessels, the capillary arteries, and the choroid plexus, which penetrate every part of the brain, enter into the ventricles, and closely surround the origin of the nerves. From the vital spirit it is now changed into the animal spirit, and acts upon the mass of brain, which is incapable of reasoning without this stimulus. In the two ventricles of the brain is placed the power of receiving impressions from external objects; in the third is that of reasoning upon them; in the fourth is that of remembering them. From the communication through the foramina of the ethmoid bone, the two ventricles receive a portion of external air to refresh the spirit, and to give new animation to the soul. If these ventricles are oppressed by the introduction of noxious vapour, epilepsy is produced, if a fluid presses on the choroid plexus, apoplexy; and whatever affects this part of the brain causes loss of mental power.
“I have transcribed his notions on vegetable and animal life: they are more curious than correct. They are contained in the second Dialogue on the Trinity, which is remarkable from its being the best proof that the doctrines of Servetus were completely at variance with the Unitarianism of which he was accused. It is a dialogue between Peter and Michael, ‘modum generationis Christi docens, quod ipse non sit creatura, nec finitæ potentiæ, sed vere adorandus, verusque Deus.’
“He here enters very minutely into the soul, as the breath of life; and the whole of the theories he has advanced are in support of the passages in the Bible, relative to the Almighty pouring into the nostrils of man the breath of life. A long metaphysical and theological discussion, difficult to be understood, follows; but not one syllable can be found contrary to the precepts of Christianity, or to the pure faith he wished to instil into the mind. In another part of the work there is a dissertation upon the heart as the origin of faith, which he believes, on the authorities he cites from the Bible, to be the seat of some degree of mental power. The heart, he supposes, deliberates upon the will, but the will obeys the brain.”
Persons disposed to inquiries of the nature last adverted to, may peruse a remarkable paper on the functions of the heart, as connected with volition, by sir James Mackintosh; it was drawn up in consequence of a table conversation with Mr. Benjamin Travers, and is inserted by that gentleman in an appendix to his work on Constitutional Irritation.[504]
It remains further to be observed respecting Servetus, that, according to Dr. Sigmond, another of his theories was, that “in the blood is the life.” His notions “on vegetable and animal life,” are in his work “De Trinitatis Erroribus, Libri VII.” 12mo. 1531. This book appears in the “Bibliotheca Parriana,” by Mr. Bohn, with the following MS. remarks on it by Dr. Parr.
“Liber rarissimus. I gave two guineas for this book.” S. P.
“Servetus was burnt for this book. He might be a heretic, but he was not an infidel. I have his life, in Latin, written by Allwoerden, which should be read by all scholars and true Christians.” S. P.
Dr. Sigmond’s opinion of Servetus evidently concurs with Dr. Parr’s. Towards the close of Dr. Sigmond’s Introduction to his “Dissertatio, quædam de Serveto complectens,” he says, “Of his religious opinions I have but little to say: the bitter prejudices, the violent hatred, the unmanly persecutions that disgraced the early introduction of a reformed religion, have fortunately given place to the milder charities of true Christianity. The penalty of death, by the most cruel torture, would not now be inflicted on a man who offered to the world crude and undigested dreams, or the visionary fancies of a disturbed imagination; and these, to say the very worst, are the sins for which Servetus expired at the stake, surrounded by the books his ardent and unconquerable spirit had dared to compose.