This work, for the most part, describes experiments performed and conclusions reached during a survey undertaken by the research laboratories of the Bell telephone system to obtain the fundamental facts on which to base the design of apparatus and systems for telephone use. cf. Pref. and introd.
Includes index.
Reproduction (note)
Microfilm.
Author
Fletcher, Harvey, 1884-
Title
Speech and hearing [microform] by Harvey Fletcher ... with an introduction by H. D. Arnold.
Imprint
New York, D. Van Nostrand Company, Inc., 1929.
Reproduction
Microfilm. New York : New York Public Library, 1993. 1 microfilm reel ; 35 mm. (MN: *ZZ-33614).