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Letter from Alexander Graham Bell to Clarence J. Blake, December 15, 1874

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sound experiments vibration hearing correspondence letter alexander graham bell alexander graham bell clarence clarence j blake high resolution
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Date

01/01/1874
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Contributors

Bell, Alexander Graham
Blake, Clarence J.
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Library of Congress
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http://www.loc.gov/
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sound experiments vibration hearing correspondence letter alexander graham bell alexander graham bell clarence clarence j blake high resolution