The Works of William Harvey M.D. William Harvey
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not the date of her death, he had certainly lost by this time. His only surviving brother Eliab was rich; his nephews were prosperous merchants and on the road to the independence and titles which several of them afterwards achieved: he, therefore, determined to make the College of Physicians not only heirs to his paternal estate, worth, at that time, 56l. per annum, but to bestow it on them in free gift during his life. This purpose he carried into effect by means of a formal instrument, which he delivered to the college in the month of July, 1656; the special provisions in the deed settling one sum, by way of salary for the librarian, and another sum, for the delivery of a solemn oration annually, in commemoration of those who had approved themselves benefactors to the college, and, by extension, who had added aught to the sum of medical science in the course of the bygone year.[27]
Having thus accompanied Harvey over so much of the way in his mortal career, let us, before proceeding further, briefly advert to his Writings, to the influence they had in the republic of letters during his life-time, to the fruits they have since produced, and to the impression still made on the mind that holds communion through their means with the mind that dictated them so many years ago.—The intellectual endowment of a man necessarily appears in his writings; it is not always from them that so true a conception of his moral character can be formed. Harvey, however, though in his long life he accomplished but a small fraction of all his literary designs, has still left us sufficient from which to form an estimate of him as a philosopher, as a physiologist, and it may also be said as a man. Let us take a brief survey of his writings, then, and wind up our account of his life with such personal notices as we can gather from contemporaries, or as we can infer from his own conduct and written word.
ON THE HEART AND BLOOD.
Harvey’s great work, though by no means the largest in bulk, is the one on the Motions of the Heart and Blood. It has been said, happily, by a recent critical writer, that “men were already practising what Bacon came to inculcate,” viz. induction upon data carefully collected and considered; and it would not be easy to adduce a more striking example of the way in which ultimate rational truth is arrived at by a succession of inferences than is contained in Harvey’s Essay on the Heart and Blood. Had Bacon written his Novum Organum from Harvey’s work as a text, he would scarcely have expressed himself otherwise than as he has done, or given different rules for philosophizing than those which he has laid down in his celebrated treatise.[28]
In his introduction, and by way of clearing the ground, Harvey exposes the views of preceding physiologists, ancient and modern, in regard to the motions of the heart, lungs, and blood, to the state of the arteries, &c.—in short, he gives the accredited physiology of the thoracic viscera, with comments, which prove it a mass of unintelligible and irreconcilable confusion. There is room, therefore, for another interpretation, consonant with reason and with anatomical fact, and susceptible of demonstration by the senses. When he first essayed himself to comprehend the motions of the heart, and to make out the uses of the organ from the dissection of living animals, he found the subject so beset with difficulties that he was almost inclined at one time to say with Fracastorius, that these motions and their purpose could be comprehended by God alone. By degrees, however, by repeating his observations, using greater care, and giving more concentrated attention, he at last discovers a way out of the labyrinth, and a means of explaining simply all that had previously appeared so obscure. Hence the occasion of his writing. Such is the burthen of the proem and first chapter. With Harvey’s admirable work now put in an accessible shape into his hands, we should (did we proceed with an analysis) but anticipate the intelligent reader in the great pleasure he will have in following the author through the different steps of his argument until the conclusion is reached, and the inference presents itself as inevitable, namely, that the blood must circle round and round in one determinate course, in the body as in the lungs, incessantly. For Harvey, it must be here observed, left the doctrine of the circulation as an inference or induction only, not as a sensible demonstration. He adduced certain circumstances, and quoted various anatomical facts which made a continuous transit of the blood from the arteries into the veins, from the veins into the arteries, a necessary consequence; but he never saw this transit; his idea of the way in which it was accomplished was even defective; he had no notion of the one order of sanguiferous vessels ending by uninterrupted continuity, or by an intermediate vascular network, in the other order. This was the demonstration of a later day, and of one who first saw the light in the course of the very year when Harvey’s work on the Heart was published.[29]
The appearance of Harvey’s book on the Motion of the Heart and Blood seems almost immediately to have attracted the attention of all the better intellects among the medical men of Europe. The subject was not one, indeed, greatly calculated to interest the mass of mere practitioners; had it been a book of receipts it would have had a better chance with them; but the anatomists and physiologists and scientific physicians would seem at once to have taken it up and canvassed its merits. The conclusions come to in the work, there can be no question, took the medical world by surprise; it was not prepared for such a proposition as a ceaseless circular movement of the blood, with the heart for the propelling organ; for the latter point, be it understood, was even as great a novelty as the former.
Coming unexpectedly, and differing so widely from the ancient and accepted notions, we cannot wonder that Harvey’s views were at first rejected almost universally. The older intellects, in possession of the seats and places of authority, regarded them as idle dreams; and upon the faith of this conclusion, their author was set down and treated by the vulgar as a crackbrained innovator. Two years, however, elapsed before aught in contravention of the new doctrines saw the light, and this came at length not from any of the more mature anatomists of Europe—their minds were made up, the thing was absurd—but from a young physician, of the name of Primerose, of Scottish descent, but French by birth. Primerose had been a pupil of Joannes Riolanus, professor of anatomy in the University of Paris; he had doubtless listened to his master’s demonstration of the absurdity of the Harveian doctrine of the circulation, and by and by he set himself down, by way apparently of exercising his ingenuity, to try the question, not by fact and experiment, but by the precepts he had imbibed from his teacher and the texts of the ancients. The essay of Primerose[30] may be regarded as a defence of the physiological ideas of Galen against the innovations of Harvey. It is remarkable for any characteristic rather than that of a candid spirit in pursuit of truth; it abounds in obstinate denials, and sometimes in what may be termed dishonest perversions of simple matters of fact, and in its whole course appeals not once to experiment as a means of investigation.—Harvey, having already, and in the very outset of his work, demonstrated the notions untenable which it was Primerose’s purpose to reassert and defend, of course deigned him no reply; he could never dream of going over the barren ground he had already trodden, in the hope of convincing such an antagonist.
Æmylius Parisanus, a physician of Venice, was the next to assail the Harveian doctrine of the circulation,[31] and still with the old instruments—the authority of Galen and the ancients generally. Parisanus perceived Harvey’s views as directly contravening an hypothesis to which he had formerly committed himself, namely, that the spleen was the organ of sanguification and the furnisher of nutriment to the heart; on this ground may Parisanus have been led to enter the lists against the new opinions. But he proved a most flimsy antagonist. Ignorant of some of the commonest points of anatomy, and frequently misinterpreting the writer he combats, writing himself in a style the most elaborately involved, and consequently obscure, it is frequently difficult even to guess at his meaning. Like his countryman of the poet, Signor Gratiano, he
“Speaks an infinite deal of nothing; more than any man in all Venice: his reasons are two grains of wheat hid in two bushels of chaff; you shall seek all day ere you find them; and when you have them they are not worth the search.”
Had not Dr. Ent, in his Apology for the Circulation, given the name a place on his title-page, Parisanus’s opposition would scarcely have merited mention here.
Nearly at the same time with Parisanus, Caspar Hofmann, the learned and laborious professor of Nuremberg, attracted particular attention, both in his teaching and his