This informative guide covers the five billion years of history that have given the earth its present form, including: The earth's relation to the rest of the universeThe rocks and minerals of which it is madeThe effects of glaciers, gravity, volcanoes, and other forcesIllustrated in full color, this guide is valuable for everyone interested in our planet, the ultimate basis of our present society. | Geology by Frank H. T. Rhodes, Paperback | Indigo Chapters