Emilio Segrè Visual Archives

More than 30,000 photos of scientists and their work

Fletcher Harvey D1

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Fletcher Harvey D1

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Image title: 
Fletcher Conducts Hearing Test in a School
Credit line: 
Bell Laboratories / Alcatel-Lucent USA Inc., courtesy AIP Emilio Segrè Visual Archives, Lillian Hoddeson Collection

In the early 1920's, the science of acoustics took a giant forward step when Bell Laboratories scientists devised the audiometer. In this photo, Fletcher conducts a hearing test on school children in 1928.

Photo date: 
Original format: 
1 photographic print (black and white; 8 x 10 inches)
Fletcher, Harvey, 1884-1981