made in describing the preparation of Advanced Organic Chemistry; no doubt some similar procedure was used with other books, although in many cases much of the actual writing was also done by her.
Louis F. Fieser was a man of action—energetic, dynamic, colorful, and extroverted. His approach to his chosen science, highly successful, was intuitive and imaginative. He preferred experiment to theory, action to contemplation. He was a great and inspiring teacher and a brilliant experimentalist. As Mary Fieser has put it, he approached chemistry "as a kind of sport, not just hard work. I think he really enjoyed teaching most of all." He died in Cambridge, Massachusetts, on July 25, 1977.
I HAVE MADE free use of a number of other accounts of the life and career of Louis Fieser, particularly those prepared by Paul D. Bartlett, E. J. Corey, the late Hans Heymann, Wm. S. Johnson, the late Max Tishler and his son Peter and daughter-in-law Sigrid, and the late R. B. Woodward. To these friends and associates of Louis Fieser I am deeply grateful.