Book excerpt: Beginning with an analysis of the scientific knowledge and technical limitations of trade, exploration and discovery in the age of the Renaissance, the author describes in turn the Portuguese and Spanish discoveries, the organization of their empires for trade and government, the attempts of the Northern Europeans to penetrate through America or find markets and sources of supply in it, the struggle of the Dutch with their rivals in the East and of the English with their rivals in the West, and their culmination in the War of the Spanish Succession. The economic mysteries are lucidly explained, the human drama never forgotten; Albuquerque and the Jesuits, Magellan and Coen are as luminously delineated as the economics of spices and sugar, company finance and slavery.