The collection contains course notes and other teaching materials from classes Allis taught in physics at MIT, including Historical Development of Physics (8.471), 1939-1940. Professional correspondence includes technical exchanges about research in plasma physics and gaseous electronics, as well as professional material about scheduling presentations, meetings, and conferences, 1929-1979. Also includes reprints of Allis's writings from 1924 to 1979 on subjects including wave theory, electron scattering, oscillation and distribution, glow discharge, and magnetic minor systems. A recording of speeches given at Allis's retirement party in 1967 includes comments from Howard Johnson and Julius Stratton. Parts of the collection are in French and German.