Traces the history of man's exploration of the sea and examines recent developments in underwater technology.

Discusses the sixteenth-century exploration of the American southwest by Spanish adventurers, particularly the expeditions of Alvar Nunez Cabeza de Vaca and Francisco Coronado.

Describes the history of voyages to the United States and Canada, including those of Alexander Mackenzie, John Cabot, Giovanni da Verrazano, Jacques Cartier, and David Thompson. Opens with Alexander MacKenzie's 1793 journey across North America to the Pacific Ocean and covers discovery and exploration in North America from 1497 through 1800. An examination of some of the earliest accounts of Egyptian and Mesopotamian explorations. An account of Dr....