A Physical Principles of Ultrasonic Testing of Materials. - 1. Waves. - 2. Plane Sound Waves on Boundaries. - 3. Geometric Ultrasonic Optics. - 4. Wave Physics of Sound Field. The Sound Beam. - 5. Echo and Shadow of an Obstacle in the Sound Field. - 6. Attenuation of Ultrasonic Waves in Solids. - 7. Piezoelectric Methods of Generation and Reception of Ultrasonic Waves. - 8. * Other Methods for Transmitting and Receiving Ultrasound. - B Methods and Instruments for the Ultrasonic Testing of Materials. - 9. Intensity Methods. - 10. Pulse-Echo Method. - 11. Transit-Time Method. - 12. * Sound Emission Analysis. - C General Testing Technique. - 13. Coupling, Choice of Probe and Measuring Frequency. - 14. Interference Effect of Boundaries. Complex Sound Paths and Screen Patterns. - 15. Testing by Means of Transverse, Surface and Plate Waves. - 16. Determination of Shape and Size of Flaws. - 17. Interference by External High-Frequency and Ultrasonic Sources. - 18. Organization of the Test. Staff and Training Problems. - 19. Testing Installations and Evaluation of Test Results. - D Special Test Problems. - 20. Flaw Detection on Metallic Specimens. - 21. Railway Material. - 22. Plate and Strip. - 23. Semi-Finished Products: Rods, Billets and Wires. - 24. Pipes and Cylinders. - 25. Castings. - 26. Welded Joints. - 27. Joints Produced by Rivetting, Glueing and Shrinking. - 28. Nuclear Reactors. - 29. Metals and their Special Testing Problems. - 30. Testing Problems on Non-Metallic Specimens. - 31. Determination of Position, Shape and Level. - 32. Measuring Methods Using Ultrasound. - 33. Standardization. - Appendix. Formulas, Diagrams and Tables.