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BRIEF OUTLINE mental physiology, the greatest biologist since Aris- totle, whose work On Generation is a commentary on Aristotle in the Aristotelian spirit of return to nature. 17th century: Great revival of Hippocratic tradition: Thomas Sydenham (1624-1689) "The EngUsh Hippo- crates ", Herman Boerhaave (1668-1738). 18th century: Partial eclipse of the ancients, through scientists' absorption in direct investigation of Nature; cf., e.g., C. Linnaeus (i 707-1778), Georges Cuvier (1769-1832). Rediscovery of the significance of Hippocrates and of the Aristotelian biology, — a modern achievement: R. T. H. Laennec (1781-1826), inventor of stetho- scope; valuable hints derived from Hippocratic writings ; Francis Adams (1796-1861) ; praise of Hippocratic surgical treatises; Johannes Miiller (1801-1858), George H. Lewes (181 7-1878), William Ogle (1827-1912) ; all derived direct inspiration from Aristotle's biological works, in spite of independent research work.

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