encourages C.S.S. to publish notes on factory work, thanks for appreciation of work with Gregg, originality of 'gradation by virtue of frequency idea', correction re: C.S.S.'s interpretation of paper (mechanical v's electrical response), Garten v's Du Bois Raymond, taking up experiment suggested by C.S.S., repeat of report of self-experimentation (previous) - significance of results, rationale for wireless war research and collaboration with Harvard physics department, Chaffee's work there and collaboration wioth Cambridge, potential relevance to physiological research, enrolment on Naval training, coming military parade,