Anthony Houghton, of Barrington, R.I.; Aug. 2. A professor emeritus of physics, he retired from regular teaching in 2002 but remained active in research until his death. He joined the faculty in 1963 as an assistant professor of physics and became a full professor in 1971. He served as department chair from 1992 to 1998. He authored more than ninety papers on problems of condensed-matter physics, including superconductivity, interacting electrons, disorders, and critical phenomena. In a well-known collaboration with Franz Wegner, he made an important early contribution to renormalization group theory. A fellow of the American Physical Society and a Humboldt fellow, he served as a visiting professor at many European and American institutions, including Oxford, the Norges Tekniske Hogskole, the Univ. of Sussex, the Univ. of Manchester, the Univ. of Heidelberg, Imperial College London, and UC San Diego. He held Science Research Council fellowships at the universities of Manchester and Sussex and at Imperial College London. He received the Alexander von Humboldt Senior Scientist Award at the Univ. of Heidelberg. A distinguished teacher, he taught courses ranging from large premed physics lectures to specialized graduate classes in advanced statistical mechanics and quantum many-body theory. His numerous Ph.D. students went on to productive careers in condensed matter physics. He also became a mentor to junior faculty members and served on University committees. He is survived by his wife, Patricia, a sister, and two nephews.