tude of observations, has been attested by almost every medical writer since his time.

His works have been repeatedly printed in the original Latin, as well as in English and the continental languages. The first was published after he had been sixteen years in practice; the last he edited himself, is dated three years before his death; and an elegant compendium of his experience was published posthumously by his son. They all appear to have been extorted by the importunity of his friends or the misrepresentations of his enemies. It is said that they were composed in English, and translated into Latin by his friends Mapletoft and Havers: there is, however, little reason for attaching credit to this report, as we are assured, on the authority of Sir Hans Sloane, who knew him well, that Sydenham was an excellent classical scholar, and perfectly capable of expressing himself elegantly in Latin. They are most carefully written and clearly expressed, and bear marks of the utmost truth and impartiality in the narration of facts, and judgment in arranging them. They are not voluminous, as he studiously refrained from overloading them with trivial matter, and from entering into the detail of a greater number of cases than might be sufficient to illustrate his method of practice. His object was to confine himself to the results of his own observation: to this he pretty strictly adhered, so that little space is occupied in his writings by quotations or criticism. It must be admitted that he occasionally lapses into theoretical discussion, in violation of his own principles; but as he seldom or never permitted his fancy to divert him from what was practically useful, he may be pardoned, if in that age of speculation he could not entirely resist the seduction. A graver charge against him is, that he overlooked or undervalued the immense body of

information to be obtained from examining the effects of diseased actions after death, and devoted himself too exclusively to the study of the symptoms during life, and the effect of remedies upon them. It is hardly a sufficient justification of a man of so much independence of spirit to reply, that such examinations were opposed by the prejudices of the age in which he lived. Others have overcome the same obstacles, and with them many of those difficulties which perplexed and misled even the mind of Sydenham. He had equal or greater difficulties to contend against in the deep-rooted absurdities of the chemical and mechanical schools, which in the early part of his life held an almost equally divided sway in medicine: the former originated with Paracelsus and his disciples, and had the advantage of a longer prescription; and the latter had received a fresh accession of strength from the recent discoveries of Harvey: both, however, gave way before his energetic appeal to fact and experience. Scarcely less credit is due to him for his successful opposition to the popular superstition in favour of a host of futile remedies, which are now happily consigned to oblivion with the family receiptbooks and herbals in which their virtues were paraded, than for his victory over false principles and dangerous rules of practice.

On the whole, it may be safely advanced that medicine, as a practical science, owes more to the closelyprinted octavo, in which the results of his toilsome exertions are comprised, than to any other single source of information.

THIS excellent and accomplished person was one of those who do honour to high birth and ample fortune, by employing them, not as the means of selfish gratification or personal aggrandisement, but in the furtherance of every useful pursuit, and every benevolent purpose. By the lover of science he is honoured as one of the first and most successful cultivators of experimental philosophy; to the Christian his memory is endeared, as that of one, who, in the most licentious period of English history, showed a rare example of religion and virtue in exalted station, and was an early and zealous promoter of the diffusion of the Scriptures in foreign lands.

Robert Boyle was the youngest son but one of a statesman eminent in the successive reigns of Elizabeth, and the first James and Charles, and well known in Ireland by the honourable title of the Great

Earl of Cork. He has left an unfinished sketch of his own early life, in which he assumes the name of Philaretus, a lover of virtue; and speaks of his childhood as characterised by two things, a more than usual inclination to study, and a rigid observance of truth in all things. He was born in Ireland, January 25, 1626-7. In his ninth year he was sent, with his elder brother Francis, to Eton, where he spent between three and four years; in the early part of which, under the guidance of an able and judicious tutor, he made great progress both in the acquisition of knowledge, and in forming habits of accurate and diligent inquiry. But his studies were interrupted by a severe ague; and while recovering from that disorder he contracted a habit of desultory reading, which it afterwards cost him some pains to conquer by a laborious course of mathematical calculations. During his abode at Eton several remarkable escapes from imminent peril occurred to him, upon which, in after life, he looked back with reverential gratitude, and with the full conviction that the direct hand of an overruling Providence was to be traced in them.

Towards the close of 1637, as it should seem, his father, who had purchased the manor of Stalbridge, in Dorsetshire, took him home. In October, 1638, he was sent abroad, under the charge of a governor, with his brother Francis. They visited France, Switzerland, and Italy; and Philaretus's narrative of his travels is not without interest. The only incident which we shall mention as occurring during this period, is one which may be thought by many scarcely worthy of notice. Boyle himself used to speak of it as the most considerable accident of his whole life; and for its influence upon his life it ought not to be omitted. While staying at Geneva, he was waked in the night by a thunder-storm of remarkable violence. Taken unprepared and startled, it struck him that the day of judgment

was at hand; "whereupon," to use his own words, "the consideration of his unpreparedness to welcome it, and the hideousness of being surprised by it in an unfit condition, made him resolve and vow, that if his fears that night were disappointed, all further additions to his life should be more religiously and watchfully employed." He has been spoken of as being a sceptic before this sudden conversion. This does not appear from his own account, farther than as any boy of fourteen may be so called, who has never taken the trouble fully to convince himself of those truths which he professes to believe. On the breaking out of the rebellion in 1642, the troubled state of England, and the death of the Earl of Cork, involved the brothers in considerable pecuniary difficulties. They returned to England in 1644, and Robert, after a short delay, took possession of the manor of Stalbridge, which, with a con siderable property in Ireland, had been bequeathed to him by his father. By the interest of his brother and sister, Lord Broghill and Lady Ranelagh, who were on good terms with the ruling party,he obtained protections for his property, and for the next six years made Stalbridge his principal abode. This portion of his life was chiefly spent in the study of ethical and natural philosophy; and his name began already to be respected among the men of science of the day.

In 1652 he went to Ireland to look after his property, and spent the greater part of the next two years there. Returning to England in 1654, he settled at Oxford. That which especially directed him to this place, besides its being generally suited to the prosecution of all his literary and philosophical pursuits, was the presence of that knot of learned men, from whom the Royal Society took its rise. It consisted of a few only, but those eminent; Bishop Wilkins, Wallis, Ward, Wren, and others, who used to meet for the purpose of conferring upon philosophical subjects, and mutually