PART ONE General Considerations 1
1 The Physics of Sound 3
2 How the Ear Functions 18
3 The Causes of Deafness 28
4 Effects of Noise on Human Behavior 44
5 Medicolegal Aspects＆by Charles R．Williams 52
6 Conservation of Hearing in Industry 61
PART TWO Noise Measurement 75
7 Principles of Noise Measurement＆by Charles R．Williams 77
8 Making Noise Measurements＆by Charles R．Williams 96
9 Damage-risk Criteria 113
10 Ear Protectors 124
11 Principles of Noise Abatement＆by R．B．Goldman 135
12 Audiometric Test Rooms＆by Robert Roop 148
PART THREE Hearing Testing 167
13 Measurement of Hearing Loss 169
14 Audiometry 181
15 Ear Examinations and Histories 225
16 Auditory Fatigue,Presbycusis,Malingering 239
17 Handicapping Effects of Deafness 256
18 Interpretation of Hearing Tests 273
19 The Industrial Physician and Otologist 292
Appendix 309
References 319
Visual Aids 321
Index 327