The mechanism of speech
Subtitle: lectures delivered before the American Association to Promote the Teaching of Speech to the Deaf, to which is appended a paper, Vowel theories, read before the National Academy of Arts and Sciences ; illustrated with charts and diagrams
By: by Alexander Graham Bell. 
Contributors: Bell, Alexander Graham, 1847-1922.
Edition: 5th ed. 
Publisher: Funk & Wagnalls Co.
Published: 1911
Place of publication: New York
Language: eng
Number of pages: 133
Subjects: Speech.; Phonetics.; Deaf -- Means of communication.