The Ascent of the West : From Prehistory Through the Renaissance.
The History of Western Ethics.
The Britannica Guide to Algebra and Trigonometry.
The Britannica Guide to Geometry.
The Britannica Guide to Numbers and Measurement.
Mesopotamia : The World's Earliest Civilization.
English Literature from the Old English Period Through the Renaissance.
English Literature from the Restoration Through the Romantic Period.
The Literature of Spain and Latin America.
The History of China.
Glaciers, Sea Ice, and Ice Formation.
Plate Tectonics, Volcanoes, and Earthquakes.
Storms, Violent Winds, and Earth's Atmosphere.
The Mesozoic Era : Age of Dinosaurs.
The Paleozoic Era : Diversification of Plant and Animal Life.
Geochronology, Dating, and Precambrian Time : The Beginning of the World as We Know It.
New Thinking about Genetics.
Bone and Muscle : Structure, Force, and Motion.
The Eye : The Physiology of Human Perception.