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A Changing World
The Successful Teacher
Who Was First?
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Aleck Aleck's grandfather Alexander Bell Alexander Graham Bell Alexander Melville Bell Beinn Breagh Bell and Watson Bell became Bell continued Bell gave Bell Telephone Company Bell's words Boston School Canada Cape Breton Island Centennial Exhibition Charles Wheatstone Charles Williams's Clarke School daughters deaf since childhood demonstration device diaphragm dots and dashes Edinburgh University electric current electric telegraph electromagnetic induction Elisha Gray elocution England experiments Gardiner Hubbard Georgie Sanders harmonic telegraph Hermann von Helmholtz human voice hydrofoil idea improving the telegraph interested invention inventors Joseph Henry Letter from Bell London Mabel Bell Mabel Hubbard machine multiple telegraph National Geographic Society North America patent phonograph produced receiver returned to Boston Sarah Fuller School for Deaf-Mutes scientist named Scotland signals success teacher teaching deaf children teaching methods telegraph system telephone line Theresa Dudley Thomas Sanders Thomas Watson transmit sound Visible Speech system Weston House wire