Abstracts

TECHNICAL PAPERS previewed in this section will be presented at the AIEE North Eastern district technical meeting, Pittsfield, Mass., April 8–9, and the South Western district technical meeting, Kansas City, Mo., April 28–30, 1943, and are expected to be ready for distribution in advance pamphlet form within the current month. The initials NE at the end of an abstract indicate that the paper will be presented at the North Eastern district meeting, SW that the paper will be presented at the South West district meeting. Copies may be obtained by mail from the AIEE order department, 33 West 39th Street, New York, N. Y., at prices indicated with the abstract; or at five cents less per copy if purchased at AIEE headquarters or at the meeting registration desk.