Announcements

Summary form only given, as follows. A session on "Stereophonic Disk Recording and Audio" was held during the IRE Canadian Convention and Exposition on October 9, 1958, in the Satellite Room of the Automotive Building, Exhibition Park, Toronto, Canada. Papers were afso llows. "Tracing Distortion in Stereophonic Disc Recording," M.S. Corrington and T. Marakami, RCA Victor Co. Ltd., Camden, N.J. "Certain Problems and Solutions in the Recording and Reproduction of Stereophonic Discs," B.B. Bauer, Columbia Broadcasting System Laboratories, N. Y. "Design Consideration in the Useo f the Stereophonic Disc Cartridge,?? Howard Durbin, Electrovoice, Buchanan, Mich. "A Double Cardioid Stereophonic Microphone," A. Jamroz and G.B. Thompson, Northern Electric Co., Belleville, Ont., Canada.