1. High Frequency Behavior of a Space Charge Rotating in a Magnetic Field
2. The author's “ Theory of the Gridded Triode ” referred to by G. A. Stuart and B. Meltzer,J. Electron, and Control, 3 , 51 was reported at the Paris conference on Mjcrowave Tubes and should, in due course, appear in either L'Onde Electrique or Le Vide .