E. Thorp Hicks with his sound educator for helping the deaf
The inventor of the Sound educator, Mr E. Thorp Hincks, pictured with his invention which subjected the ear to the recurrence of sounds whose pitch, intensity and timbre had been selected expressly for the purpose
Picture No
14107676
Media ID
45834879
Size
6703px x 4354px
(2.5MB)
Credit
© Illustrated London News Ltd/Mary Evans
Source
Portrait in The Sketch, 13 May 1914
Date
1914
