National Audubon Society Field Guide to North American Rocks and Minerals

Perfect for mountain climbers and hikers, this valuable reference covers more rocks and minerals in North America than any other available guide. 794 full-color photographs depict all the important rocks, gems, and minerals -- in many variations of color and crystal form -- and the natural environments in which they occur; written descriptions provide information on field marks, similar rocks and minerals, environment, areas of occurrence, and derivation of names. Includes a guide to mineral collecting and a list of rock-forming minerals

  National Audubon Society Field Guide to North American Fossils

This, the first all-photographic field guide to cover fossils found throughout North America north of Mexico, includes nearly 500 full-color photographs identifying corals, trilobites, shells, teeth, bones, as well as fossil-bearing rocks and outcrop formations. The descriptive text includes information on size, geological period, geographical distribution, and ecology of the animal or plant before it was fossilized. In addition, the book provides lists of Geological Survey offices and major fossil collections, a geological time chart, and a guide to collecting and preserving fossils.

  The Sibley Field Guide to Birds of Western North America

The Sibley Field Guide to Birds of Western North America is an indispensable resource for all birders seeking an authoritative and portable guide to the birds of the West.

  National Audubon Society Field Guide to North American Insects and Spiders

Reviewer: Mary Ellen Curtin

"There are about 100,000 kinds of insects in North America, so obviously they can't have a field guide in the same way the 650 species of birds do: something both portable and complete. The National Audubon Society has produced a remarkably useful compromise. This guide has photographs and descriptions of 550 insect species and 60 kinds of spiders. Most of the families of arthropods on the continent are covered, as are all of the most common species. It's a very useful resource for any North American naturalist, and the best choice for an adult who is not an expert entomologist."

  The National Audubon Society Field Guide to North American Reptiles and Amphibians

This stunning guide explores the kingdom of snakes, toads, frogs, turtles, lizards, salamanders, and crocodiles, with information on physical appearance, voice, breeding cycles, habitat, range, and status in the wild. Poisonous or otherwise dangerous animals are distinguished with a warning symbol. An essay on observing reptiles and amphibians, and detailed anatomical drawings, round out the coverage in this comprehensive guide.