This introductory book explains in simple terms what geology can
tell us about the world. Many objects of great beauty which excite
our curiosity, such as crystals or fossils, are to be found by
examining rocks. Those searching for and examining such objects
gain much more by knowing how and when they originated. Fossils,
while interesting in themselves, tell us from their context in
geological time of biological evolution, and these clues give an... more...