Abstract :
SUPPLEMENTING the annual report of the chairman of the committee on electrical insulation, division of engineering and industrial research, National Research Council, which appeared under the title “The Trend in Dielectric Research” on p. 967–70 of the December 1931 issue of ELECTRICAL ENGINEERING, a résumé of technical and scientific papers presented at that committee´s fourth annual meeting and conference held recently at Harvard University is presented in the four articles which follow. Each article is based upon the papers presented at one of the four technical sessions of the conference, each session dealing with one particular phase of insulation research.