Geologist and author of The Rock-hunter's Range Guide, Jay Ellis Ransom surveys the field of fossils with specific advice and information. He discusses the origin and nature of fossils, preparation for the field, assembling fossil collections, identifying and classifying fossils, geologic time and sedimentation, the geologic map. There is a complete listing by state, county and town of the principal fossil-collecting sites in the United States, presented here for the first time. The simplified identification and classification system includes vertebrate and invertebrate animals and plants, including petrified wood. There is a glossary and listing of reference libraries and mineral museums by states and cities.