The literature of the past year contains a relatively small contribution on the functional examination of hearing. Hardly any new tests or practical variations of the old ones have been published. Audiometry is used to a greater extent in the testing. The few articles found in the foreign literature show definite activity in this field. Interest in the testing of school children and in the interpretation of results is evident. Considerable attention is being given to hearing aids and their development and use.
Holmgren1 has written a complete monograph on hearing tests and hearing aids. He reviews the procedures, evaluates the criticisms and gives his own views obtained from investigations carried out in the otorhinolaryngologic clinic, Sabbatsberg Hospital, Stockholm. He traces the development of hearing tests and hearing aids and presents the fundamental acoustic principles and their relation to speech and hearing. One cannot ascribe any great value to comparative
LEWY A, LESHIN N. FUNCTIONAL EXAMINATION OF HEARING. Arch Otolaryngol. 1940;31(2):344–366. doi:10.1001/archotol.1940.00660010346012