Introduces ten famous American bridges: the Verrazano Narrows, San Francisco-Oakland Bay, Frankford Avenue, Royal Gorge, Golden Gate, Evergreen Point, Chesapeake Bay, Mackinac, Coos Bay, and Brooklyn Bridge.
Examines through photographs, text, and illustrations the physical structure, metabolism, and life cycle of fishes and discusses how they fit into the food chain.
Provides detailed descriptions and photographs of fifty of the most widely found rocks and minerals of North America, with shorter descriptions and photogrpahs of over 120 additional specimens; and includes information on the basics of geology and mineralogy.