This groundbreaking book on speech is a must-read for anyone interested in the science of communication. Written by Alexander Graham Bell, one of the most renowned inventors and scientists of the 19th century, it includes lectures delivered before the American Association to Promote the Teaching of Speech to the Deaf, as well as a paper on vowel theories read before the National Academy of Arts and Sciences. Illustrated with charts and diagrams, this book is a fascinating look at the mechanics of speech and the science behind it.

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