Drawing on Lavoisier's daily laboratory records, unpublished notes, and successive drafts of articles, Holmes explores the interaction between this creative scientist's theories and practice, the experimental problems he encountered and his response to them, the apparently intuitive understanding that guided his choice of experiments, and the gradual refinement of his hypotheses. This thorough and comprehensive exposition of Lavoisier's scientific style forms the basis for general reflections on the nature of creative scientific imagination that will interest historians of science and biology, philosophers of science, cognitive psychologists, and all who are intrigued by the drama of pioneering scientific discovery.