portion of 1977 and a year in 1980–1981 on sabbatical in Pasadena, California. He dedicated a portion of his time to paleography, utilizing the nearby Huntington Library. Additionally, through a personal connection at the University of Leeds, Aris was able to spend several weeks there as Brotherton Professor in 1985. Aris spent his last sabbatical, from 1993–1994, at the Institute for Advanced Study at Princeton. Death Aris penned many poems and anecdotes, many relating his difficulties with Parkinson's disease, from which Aris eventually died. Aris died on November 2, 2005, in Edina, Minnesota. Legacy Over the course of his long academic career, Aris was a visiting professor at many institutions, including Cambridge University, the California Institute of Technology, and Princeton University; he authored 13 books and more than 300 chemical engineering research articles, and mentored 48 Ph.D. and 20 M.S. graduate students. Aris was well known for his research on mathematical modeling, chemical reactor and chemical process design, and distillation techniques, as well as his paleographic research. After he had been department head for four years, in 1978 he was named Regents Professor. Some of the awards and honors earned by Aris include a Guggenheim Fellowship, election to the National Academy of Engineering in 1975 and the American Academy of Arts and Sciences in 1988. Aris was also a member of the American Chemical Society, the Society for Mathematical Biology, and the Society of Scribes and Illuminators, among others. Aris was awarded the Richard E. Bellman Control Heritage Award in 1992 for his contributions to the field of control theory. He was awarded the Neal R. Amundson Award for Excellence in Chemical Reaction Engineering by the International Symposia on Chemical Reaction Engineering in 1998. In 2016, the board of the ISCRE (International Symposia on Chemical Reaction Engineering) established the Rutherford Aris Young Investigator Award for Excellence in Chemical Reaction Engineering. This award honors young researchers under the age of 40 to recognize outstanding contributions in experimental and/or theoretical reaction engineering research. Selected bibliography The following is a selected bibliography for Rutherford Aris. Books Aris, Rutherford (1989). Elementary Chemical Reactor Analysis (Butterworth's Series in Chemical Engineering) .Butterworth-Heinemann Edited books References Footnotes 1929 births 2005 deaths Engineering academics British chemical engineers Control theorists Applied mathematicians University of Minnesota faculty Alumni of the University of London Alumni of the University of Edinburgh Richard E. Bellman Control Heritage Award recipients Fellows of the American