The main theme of this best-selling book is that the transmission of energy by wave propagation is fundamental to almost every branch of physics. Therefore, besides giving students a thorough grounding in the theory of wave and vibrations, the book also demonstrates the pattern and unity of a large part of physics. This new edition has been thoroughly revised with the help of Professor Lyle Roelofs of Haverford College, USA. As with earlier editions, there are large numbers of problems together with hints on how to solve them. Table of Contents Simple Harmonic Motion. Damped Simple Harmonic Motion. The Forced Oscillations. Coupled Oscillations. Transverse Wave Motion. Longitudinal Waves. Waves on Transmission Lines. Electromagnetic Waves. Waves on More than One Dimension. Fourier Methods. Waves in Optical Systems. Interference and Diffraction. Wave Mechanics. Non-linear Oscillations and Chaos. Non-linear Wave, Shocks and Solitons. Appendices. Index.