Fong, Yue Chor2016-04-262016-04-261917-06https://hdl.handle.net/11299/179339University of Minnesota Masters thesis. June 1916. Advisor: H. M. Turner. 1 computer file (PDF); 18, 17 pages, 25 unnumbered pages of plates.enA Study of the Operating Characteristics of the AudionThesis or Dissertation