Abstract :
Author´s closing discussion of a paper published in the December 1934 issue, pages 1633–7, and presented for oral discussion at the general overhead line problems session of the winter convention, New York, N. Y., January 23, 1935. Other discussions of this paper were published in the March 1935 issue, pages 332–3, and in the April 1935 issue, pages 444–5.
