The first edition of this book was published in 1879 when Sir Horace Lamb was a much younger person (he was serving as an officer in international associations in the 1920's). It remains a standard classic text in hydrodynamics, covering the fundamentals of the subject. The basic science has not changed, but solutions to problems have become much more advanced as some processes are better understood, and as computational methods become more advanced. The text covers the basic equations of motion, irrotational motion, fluid motion in two dimensions and problems in three dimensions, the motion of solids through a liquid, vortex motion, tidal waves, surface waves, waves of expansion, viscosity, and rotating fluids. It is recommended as a standard reference for hydrodynamics and physical oceanography.