The Realm of Acoustical Oceanography, Theory and Applications of Ocean Acoustics. Sound Propagation. Transmissions Along Raypaths. Sources and Receivers. High Intensities. Processing of Ocean Sounds. Sound Scattered by a Body.Bubbles. Biomass Echoes, Reverberation, and Scattering Models. Sonar Systems: Measurements and Inversions. Waveguides: Plane Layers and Wedges. Scattering at Elements of a Rough Surface. Scattering and Transmission at Statistically Rough Surfaces. Mappingthe Seafloor. Subject Index.