Consists mainly of correspondence. As an active reviewer of books, instructional texts and articles submitted for publication to the American Journal of Physics, includes extensive series of letters to authors and to the editor of Amercian Journal of Physics, 1966-2000; additional correspondence with the editors regarding his own submissions, 1961-1991. Discussion of the Principia argument with other physics instructors, 1979-1982. Teaching and research files include documents from early work at Stanford in 1943; files from National Science Foundation Faculty Fellowship at Oxford University, England, 1965-1966 as well as later sabbaticals spent there. Includes entries for the American Institute of Physics Visiting Scientists Program,1967-1971 and for the Ohio Academy of Science Visiting Scientists Program, 1961-1971. Also contains reprints of articles written by Weinstock, 1942-2000.