The Waters of the Sea Author:P. Groen After a glimpse at the historical background ranging from Homer to the present day, the author discusses numerous devices to further man's knowledge and cites the findings of many expeditions. The chapter on seawater deals with variations in depth, salinity, and temperature in different parts of the world. A chapter is devoted to sea ice and the... more » origins, movements and life cycles of icebergs. Sea waves and ocean currents are dealt with in separate chapters,and tides, storm surges, submarine currents, and radioactivity of seawater all receive attention. The concluding chapter on deep sea circulation gives facts about the relative ages of ocean waters. Illustrations, figures, charts, tables, bibliography and index clarify, establish and develop the author's arguments and conclusions.« less