Abstract
I have long been interested in the functional testing of hearing, and for this purpose have employed the means and methods in common use. These include the Politzer acoumeter, the ordinary watch (the latter only on rare occasions, being regarded as unreliable, practically no two being alike in pitch or intensity), the unaccentuated whisper and conversation voice, the various tuning forks from the lowest to the highest pitches, the Edelmann Galton whistle, and the Struychen-Schaefer monochord. Latterly, several types of audiometers, preferably the one used by Drs. Dean and Bunch of Iowa City, and those perfected by the Western Electric Company, have been introduced, but we have not had sufficient experience with them to be able to express an opinion regarding them. Of these various measures, we have used mostly the unaccentuated whisper and conversation voice, but we know that it is difficult to have a criterion or standard since
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