Over the years Hawthorne has presented many named and endowed lectures as well as plenary lectures at national and international meetings. Examples include: a Visiting Lectureship at Queen Mary College, the University of London in Fall 1963; The DuPont Lecture at the University of South Carolina and Horizons in Organometallic Chemistry Plenary Lecture at the New York Academy of Sciences in 1973; Plenary Lecturer at the Second International (IUPAC) Conference on Boron Chemistry, Leeds, England, 1974; Venerable Lecturer at the University of North Carolina and Reilly Lecturer at the University of Notre Dame in 1974; Frontiers in Chemistry Lecturer at Wayne State University in 1975; Plenary Lecturer at the New York Academy of Sciences, 1976; Plenary Lecturer at the Marvel Symposium, the University of Arizona, 1977; Plenary Lecturer at the Second International Symposium on Inorganic Ring Systems, Göttingen, FRG, 1978; Plenary Lecturer, International Conference on Inorganic Chemistry, the University of Bielefeld, FRG, 1980; Plenary Lecturer, International Conference on Platinum Group Metals, the University of Bristol, England, 1981; Plenary Lecturer, Second China-Japan-USA Inorganic and Organometallic Chemistry Symposium, Shanghai, PRC, 1982; Section Lecturer, Twenty-Ninth IUPAC Meeting, Cologne, FRG, 1983; Co-Chairman and Lecturer, Third China-Japan-USA Symposium on Organometallic Chemistry and Catalysis, The University of California, Santa Cruz, 1984; Castle Lecturer, University of South Florida, 1986; Plenary Lecturer, Fifth International Symposium on Inorganic Ring Systems, The University of Massachusetts, 1988; McElvain Lecturer, The University of Wisconsin, Madison, Wisconsin, 1989; Plenary Lecturer, Seventh International Meeting on Boron Chemistry (IMEBORON VII), Nicolaus Copernicus University, Torun, Poland, 1990; and Eighth such meeting (IMEBORON VIII), the University of Tennessee, Knoxville, Tennessee, 1993; the Bailar Medalist Lectures, The University of Illinois, Urbana, 1991; and the Gooch-Stephens Lectures at Baylor University in 1992. In addition, he has lectured at numerous Gordon Research Conferences in Organic and Inorganic Chemistry and in 1974, he chaired the Gordon Research Conference in Inorganic Chemistry. Most recently he presented an invited lecture at the 1993 Gordon Research Conference in Inorganic Chemistry and in 1994, a Plenary Lecture in Chemistry at the Sixth International Symposium on Neutron Capture Therapy for Cancer, Kobe, Japan, as well as an invited lecture at the Seventh International Symposium on Inorganic Ring Systems, Banff, Canada. In early 1995, Hawthorne served as a Robert A. Welch Foundation lecturer throughout the state of Texas. The University of California, Los Angeles, has honored him by selecting him as 1995 Faculty Research Lecturer. In 1996, he was the Boomer Lecturer at the University of Alberta, Edmonton and a Plenary Lecturer in the International Meeting on Boron Chemistry (IMEBORON IX), Heidelberg University. He presented the Swift Lecture at the California Institute of Technology, the Fishel Lecture at Vanderbilt University and the Seaborg Medal Lecture at UCLA in 1997. He lectured in the Frontiers in Chemistry Symposium Celebrating the 50th Anniversary of the State of Israel in 1998. Also in 1998 he was the Centenary Lecturer of the Royal Society of Chemistry and an invited speaker at the 1998 Gordon Research Conference on Organometallic Chemistry held in Newport, Rhode Island. He was an invited speaker at the 1999 International Meeting on Boron Chemistry (IMEBORON X), Durham University and the symposium on Organic and Inorganic Synthesis via Boranes given at the 218th Meeting of the American Chemical Society, New Orleans, Louisiana.
Hawthorne has served and continues to serve on many boards and committees associated with the U.S. National Academy of Sciences and its National Research Council. Hawthorne was a Member of the Review Panel on U.S.-Soviet Scientific Exchange (National Academy of Sciences) and a co-author of the Kaysen Panel Report (Chemistry Section), 1975-76. He also served as the Chemistry Member of the Board on International Scientific Exchange (National Academy of Sciences), 1975-78. In addition, he has served (1980-86) as one of two chemist members of the U. S. Air Force Scientific Advisory Board, Office of the Secretary of the Air Force. He is a former member of the National Academy of Sciences Board of Army Science and Technology and under these auspices chaired an oversight panel concerned with the conduct of Chemical Defense Research at the U. S. Army Chemical Research, Development and Engineering Center during 1985-89. He also served as a consultant to the Defense Science Board Task Force Study on the Detection and Neutralization of Illegal Drugs and Terrorist Devices in 1987-88. In 1991-92, Hawthorne served on the Director's External Advisory Board, The Los Alamos National Laboratory. Hawthorne serves as a member of the Executive Committee of the International Society for Neutron Capture Therapy (1992-98). He served as President of this Society for the period 1996-98 and he presided at the Eighth International Symposium of this Society held in La Jolla, California, September 12-18, 1998.
In 1966, Hawthorne was appointed Associate Editor of Inorganic Chemistry with Professor Edward L. King as Editor. In 1969, Hawthorne became Editor-in-Chief. His many years of service as Editor saw Inorganic Chemistry grow into a biweekly publication with an unsurpassed international reputation. He also serves on the Editorial Advisory Board of Bioconjugate Chemistry.
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