A paucity of reports on hearing tests in the literature is more in evidence this year than ever. Discussion of tuning fork tests is almost nil. There is an increasing interest in hearing aids, as indicated by the larger number of articles on this subject in the literature. The question of conservation of hearing has also received considerable attention. The presence of war has brought about an increased interest in military medicine. Abstracts pertaining to the effect of war on hearing and methods for the protection of hearing make up an important part of this review. The contributions of foreign writers to the entire subject of hearing tests, deaf-mutism and conservation of hearing are few and difficult to obtain.
HEARING TESTS
Kobrak1 presents a series of new hearing tests and a plea for the retention of tuning forks. An experimental comparison is made between audiometric curves secured by using the