A history of the pearl as an ornament, as an industry, and as an object that inspires man to take great risks to possess it.

Traces the origins and development of many kinds of folk music in America, gives brief biographies of some famous folk singers, and discusses twentieth-century folk music.

Explains each of the twenty-six amendments to the Constitution.

An introduction to the office of Vice-President, with brief sketches of the men who have filled that post from John Adams to Walter F. Mondale.

A survey of country music since its beginnings among southern mountain folk and an introduction to its "stars" past and present.

Highlights the history of firearms from their appearance in Europe in the 14th century through the settling of America and the Civil War. Discusses firearms in sport and competition and the art of gunsmithing.

Explains what causes earthquakes, how to predict and measure them, and ways to prevent damage. Also describes great quakes throughout history.

Discusses types of wind, how their force is measured, the characteristics of hurricanes and tornadoes, some devastating storms, weather proverbs, and safety precautions to take during hurricanes and tornadoes.

Explains the structure and functions of the Supreme Court, how cases come before it, and the various legal rights of a citizen.

Discusses the Mayan culture, its discovery by Spaniards, and its eventual collapse, and describes the ruins existing today.