Abstract
<h3>INTRODUCTION</h3> THE SUBJECT of occupational deafness is receiving increased attention, especially in the Scandinavian literature. It is notable that Finland, small as it is geographically, has recently formulated laws requiring preoccupational examination of the hearing of those going into noisy industries, with reasonable follow-up examinations. In our country not all the states offer compensation for anything less than total deafness. In those that offer percentage loss, no doubt the insurance companies will demand some precautionary measures, if the manufacturers do not do so of their own accord. The discovery that the presence or absence of the recruitment phenomenon in high-tone deafness is of considerable diagnostic value in discriminating between cochlear lesions and retrocochlear lesions, which are principally acoustic or angle tumors, has led to new methods of determining the presence or absence of recruitment, including some new types of audiometers, e. g., the von Békésy, and some tests that will
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