We have yet to note a remarkable fragment entitled “Theologia Rationalis, by Dr. Thomas Sydenham,” in manuscript in the Cambridge University Library. It appears to coincide very closely with other indications of his views, and it has been said of it, “There is much in it of the spirit both of Locke and Butler—of Locke in the spirit of observation and geniality; of Butler in the clear utterances as to the supremacy of reason, and the necessity of living according to our own true nature.” The general principles of his regard of the Divine Being may be judged from the following extract: “Wherefore, to this eternal, infinitely good, wise, and powerful Being, as I am to pay all that adoration, thanks, and worship which I can raise up my mind unto; so to Him, from the consideration of His providence, whereby He doth govern the world, myself and all things in it, I am to pray for all that good which is necessary for my mind and body, and for diverting all those evils which are contrary to their nature; above all desiring that my mind may be endowed with all manner of virtue. But in requesting things relating to my body and its concerns, having always a deference to the will of the Supreme Being, who knows what is best for me better than I do myself. And though my requests to these bodily concerns of mine are not answered, nevertheless, herein I worship Him, by declaring my dependence upon Him; and forasmuch as that, in many respects, I have transgressed His divine laws written upon my nature, I am humbly to implore His pardon, it being as natural for me to do it, as it is to implore the pardon of a man whom I know I have offended. In all which requests of mine, and all His creatures, how many soever they be in number, and how distant soever they be in place, He being infinite, is as ready at hand to hear and to help as any man who is but finite is at hand to administer food to his child that craves it.” Thus we take leave of Sydenham, denominated by Locke “one of the master-builders at this time in the commonwealth of learning;” reckoned by the masters in his own and the next age as second to Hippocrates alone—the man whom Boerhaave never mentioned to his class without lifting his hat, describing him as “Angliæ lumen, artis Phœbum, veram Hippocratici viri speciem.” CHAPTER IV. _THE MONROS, CULLEN, THE GREGORYS, JOHN BELL, AND THE FOUNDATION OF THE EDINBURGH SCHOOL OF MEDICINE._