juvenile literature

Discusses how archaeological specialists have reconstructed various aspects of civilian and military life in the Roman Empire.

Reconstructs the day in 79 A.D. when the town of Herculaneum was destroyed by the eruption of Mount Vesuvius and discusses the archaeological excavations of that town made in recent centuries.

Describes the biology and geography of the Everglades, the history of this unique wilderness, and the need to conserve it for the future.

Discusses the origin and composition of the earth's crust, the ways in which it is continually changing, its importance to man, and what it reveals about the history of the earth.

Discusses the sun's heat, size, surface, and energy; sunspots and their effects; and the importance of the sun to the earth.

Describes the characteristics of the two planets closest to the sun and their relationship to the earth.

Discusses theories of the moon's origin, its physical characteristics, and space programs that have made lunar exploration possible.

Recounts the experiences of the twenty-one man expedition whose mission was to find out as much as possible about the geography of Antarctica.

Describes the geography, history, resources, and people of the polar regions emphasizing the way of life, need for conservation, and scientific experiments being carried on.