Chapter titles are ...(1) Wave-Action ...(2-3) Erosion and Accertion ...(4-5) Types of Sea-Walls ...(6) Reinforced-Concrete Sea-Defense ...(7) Other Types of Protection by Sea-Walls ...(8) The Action of Sea Water on Cement and Concrete ...(9-10) Groynes ...(11) Design of Sea-Walls - Erosion versus Accretion ...(12) Materials and Methods of Preservation of Sea-Works ...(13) Harbor Projections and Their Effect Upon the Travel of Sand and Shingle ...(14) Wave-Action on Harbor Break-Waters and Piers.