For several years an attempt has been made at the Otological Laboratory of the Johns Hopkins University to correlate losses in hearing and defects shown histologically in the conductive and perceptive mechanisms of the organ of hearing. In carrying out this program, about 4,000 records of hearing tests have been secured, and serial sections of several hundred temporal bones have been made.
The staff of the medical and surgical departments of the Johns Hopkins Hospital and of the medical department of the Bay View division of the City Hospital have cooperated in permitting an examination of the auditory and vestibular function on their patients and securing permission for necropsy. A large percentage of the patients tested recover and leave the hospitals, but the results of the hearing tests and the hospital histories are available for study along other lines.
Accurate and complete hearing tests are necessary if
BUNCH CC. AGE VARIATIONS IN AUDITORY ACUITY. Arch Otolaryngol. 1929;9(6):625–636. doi:10.1001/archotol.1929.00620030657005
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