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In Memoriam of Alfred S. Evans The third edition of Bacterial Infections of Humans is dedicated to Alfred Spring Evans, who died on January 21, 1996, 2 ½ years after a diagnosis of cancer. Al was the senior editor of this textbook, which he founded with Harry Feldman in 1982. Al was a clinician, epidemiologist, educator, ca- lyst for biomedical research, historian, author, speaker, seeker of the truth, sincere friend of students, sports enthusiast, traveler, and truly a man of all seasons. He was a devoted husband to Brigette Klug Evans, father of three children, and grandfather of four. Al was born in Buffalo, New York, on August 21, 1917, to Ellen Spring and John H. Evans, M. D. , one of the United States's ?rst anesthesiologists and an early researcher in the ?eld of oxygen therapy. He received his undergraduate training at the University of Michigan; was awarded an M. D. degree in 1943 from the University of Buffalo; interned in Pittsburgh, Pe- sylvania; and performed his medical residency at the Goldwater Hospital in New York City. He was in the United States Army from 1944 to 1946, assigned as a public health of?cer to a base in Okinawa, Japan. It was there that he met Drs. Albert Sabin and John R. Paul, who came to Okinawa to test a new Japanese encepha- tis vaccine. Al was invited by Dr. Paul to come to Yale Alfred S.

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Born in Switzerland, Wolfgang Pauli was the son of a professor of physical chemistry at the University of Vienna and godson of Ernst Mach. He was a child prodigy, writing an outstanding paper on the theory of relativity at age 19, and receiving his Ph.D. from the University of Munich in 1922. After further study with Niels Bohr and Max Born, Pauli taught at the Federal Institute of Technology in Zurich, where he remained until his death in 1958.

His discovery of the exclusion principle enabled Pauli to explain the structure of the periodic table of elements, formulate fundamental theories of electrical conductivity in metal, and investigate magnetic properties of matter. For this discovery, Pauli received the Nobel Prize in 1945.

Pauli's second great accomplishment was resolving the "problem" of beta decay. In 1930 he addressed this question of the "missing energy" of electrons by suggesting that an emitted electron was accompanied by a neutral particle carrying an excess of energy. Pauli's intellectual ability was not matched by his manual dexterity; his colleagues laughed at the so-called Pauli effect, whereby accidents seemed to happen whenever he worked in the laboratory.

(Bowker Author Biography)