The whole essay is an interesting one. It shows us the range of Harvey's mind filled with the knowledge of ancient philosophy, but animated by the experimental spirit of modern science. All that the work contains of observation and experiment is valuable, for Harvey had made use of his uncommon opportunities to acquire a knowledge, such as is usually possessed only by huntsmen and gamekeepers, and has very rarely been attained by a man of science. Harvey's knowledge, as shown in this treatise, may be compared to that shown by Darwin in his "Variation of Animals and Plants under Domestication." Harvey tries to explain his observations in the terms of an existing philosophy, while Darwin uses his facts to establish an original hypothesis of his own. We have so completely outlived the age of the schoolmen that it is difficult for us to recognise the bondage endured by so great a mind as Harvey's until we consider it in the light of Darwin's work. Then we recognise that the theoretical disquisitions in the treatises on development are not so foreign to the true nature of Harvey as they appear to be at first sight. They are in reality an illustration of the profound influence of the prevalent thought of a period upon every contemporary mind, and show that the most thoughtful and original are not always the least affected. We thus take leave of one of the master minds of the seventeenth century. Harvey's osteological lecture has not yet been found, and many of his investigations in comparative anatomy are still wanting. But there is a possibility that his papers and books were only dispersed, and were not destroyed at the pillage of his lodgings in Whitehall. Some of the wreckage is still cast up from time to time, and we may hope that more may yet be found. So recently as 1888 Dr. Norman Moore recognised thirty-five lines of Harvey's handwriting on a blank page at the end of the British Museum copy of Goulston's edition of Galen's "Opuscula Varia." Here, as in all the other manuscripts, the peculiarities of Harvey's writing are too distinct to leave any doubt of the authorship. Every fragment of his work is interesting, and even in these few lines we seem to learn his opinion of artificial exterior elevation as opposed to the genuine exaltation of worth or learning, for against a passage in which Galen prefers learning to rank, Harvey has written "wooden leggs." A fitting testimony from one who, though he had spent the greater part of his life at court, was yet the foremost thinker of his age. FINIS. _APPENDIX_ AUTHORITIES CHAPTER I. "The Genealogy of the Family of Harvey, compiled from Original Sources," by W. J. Harvey, Esq., F.S.A., Scotland, in the "Misc. Geneal. and Herald." Second Series, 1888-9, vol. iii. pp. 329, 362, 381. Loftie's "History of London," ed. ii., vol. i.