The papers of Dr. Russell H. Johnsen (1922-) comprise subject files of correspondence, news clippings, reports, photographs, and several publications illustrating his activities in the development of the nuclear science and radiation chemistry programs and the Center for Research in College Instruction of Science and Mathematics at Florida State University (FSU), primarily from the late 1950s through the late 1960s. There are also letters and news clippings documenting the 1952 Linus Pauling affair.