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

    Now comes a new portable guide from David Sibley that every birder will want to carry into the field. Compact and comprehensive, this new guide features 703 bird species plus regional populations found west of the Rocky Mountains. Accounts include stunningly accurate illustrations—more than 4,600 in total—with descriptive caption text pointing out the most important field marks. Each entry contains new text concerning frequency, nesting, behavior, food and feeding, voice description, and key identification features. Accounts also include brand-new maps created from information contributed by 110 regional experts across the continent. 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.

    The 378 dramatic photographs capture cloud types, precipitation, storms, twisters, and optical phenomena such as the Northern Lights. Essays with accompanying maps and illustrations discuss the earth's atmosphere, weather systems, cloud formation, and development of tornadoes and many other weather events.

    Packed with photographs and details on characteristics, distinguishing features, and more, Smithsonian Handbooks: Rocks and Minerals makes identification easy.Designed for beginning and experienced collectors alike, this guide explains what rocks and minerals are, how they are classified, and how to start a collection. Look up different rocks and minerals, and find clear, annotated photography to pick out the key distinguishing features. Learn the differences between igneous, metamorphic, and sedimentary rocks, and reference the glossary for many more technical and scientific terms.Smithsonian Handbooks: Rocks and Minerals is filled with information about characteristics, colors, unique attributes, and more, making it one of the clearest identification guides for rock and mineral enthusiasts.

    It presents the important traditional content of mineralogy including crystallography, chemical bonding, controls on mineral structure, mineral stability, and crystal growth to provide a foundation that enables students to understand the nature and occurrence of minerals. Physical, optical, and X-ray powder diffraction techniques of mineral study are described in detail, and common chemical analytical methods are outlined as well. Detailed descriptions of over 100 common minerals are provided, and the geologic context within which these minerals occur is emphasized. Appendices provide tables and diagrams to help students with mineral identification, using both physical and optical properties. Numerous line drawings, photographs, and photomicrographs help make complex concepts understandable. Introduction to Mineralogy not only provides specific knowledge about minerals but also helps students develop the intellectual tools essential for a solid, scientific education. This comprehensive text is useful for undergraduate students in a wide range of mineralogy courses.

    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.

    Geosystems 6/e is written for students, designed to teach the science of physical geography in an interesting, and engaging style Christopherson's approach communicates modern physical geography through its systems organization, currency, student-friendly writing, and an outstanding multimedia graphics program.

    Included are extra close-up charts of the Orion Nebula, Pleiades, Virgo Galaxy Cluster, and Large Magellanic Cloud.

    It offers the best information in the world on the current popular and traditional uses of the nearly 500 species covered, much of it available for the first time. More than 530 color photographs illustrate the plants and their flowers, leaves, and fruits. The descriptive text combines scientific, ethnobotanical, and cross-cultural information, making this field guide unique. An index to medical topics is helpful for quickly locating information on specific ailments. Symbols next to the plant descriptions provide quick visual warnings for poisonous and allergenic plants. Organized by flower color for fast identification, this guide is an essential aid to appreciating native plants and the wild areas they inhabit.

    All 933 identification pictures are full-color photos of significant details of virtually all native trees and many cultivated species as you see them in their natural habitat.

    The cost of a copy of Zinn and the Art of Road Bike Maintenance should be sufficient in most cases. This well-organized and -illustrated guide, which incorporates the latest in component technology and innovations, shows how to maintain every part of a road bike. This includes chains, derailleurs, shifters, wheels, brakes, cranks, bottom brackets, pedals, saddles, seatposts, handlebars, stems, headsets, forks, and frames -- all covered in Lennard Zinn's trademark clear and concise prose. Novices and seasoned mechanics alike can benefit from the clear illustrations, exploded views of how components go together, and practical tips on how to completely and properly maintain all aspects of their road bikes to ensure hours of trouble-free riding. Zinn shows exactly when to tackle a maintenance project and when a trip to the bike shop for repair is unavoidable.

    This story of a fascinating landscape is told in an engaging style that nonscientists will find inviting. The story’s end, however, remains a mystery yet to be solved.

    About The Author: Henry Gray, F.R.S., Fellow of the royal college of Surgeons: Lecturer on anatomy at St. George?s Hospital Medical School. Table Of Contents: Descriptive and Surgical Anatomy The Articulations Muscles and Fasclae The Blood-vascular system The Lymphatics The Nervous system The Organs of special sense The Organs of Digestion The Organs of voice and respiration The urinary organs The Male Organs of Generation The Female Organs of Generation The Surgical Anatomy of Hernia Surgical Anatomy of the Perinaeum General Anatomy or Histology Embryology

    "The Birder's Bible" for over sixty years. All the birds of eastern and central North America--including accidentals, exotics, and escapes--shown in full color and described in detail. 390 complete, easy-to-read range maps showing summer and winter ranges, breeding grounds, and other special range information. Easy-to-use facing-page format.

    . . . Anyone with the slightest interest in biology should read this book."--The New York Times Book Review"A marvelous museum of the past four billion years on earth--capacious, jammed with treasures, full of learning and wide-eyed wonder."--The Boston GlobeFrom its origins on the still-forming planet to the recent emergence of Homo sapiens--one of the world's leading paleontologists offers an absorbing account of how and why life on earth developed as it did. Interlacing the tale of his own adventures in the field with vivid descriptions of creatures who emerged and disappeared in the long march of geologic time, Richard Fortey sheds light upon a fascinating array of evolutionary wonders, mysteries, and debates. Brimming with wit, literary style, and the joy of discovery, this is an indispensable book that will delight the general reader and the scientist alike."A drama bolder and more sweeping than Gone with the Wind . . . a pleasure to read."--Science"A beautifully written and structured work . . . packed with lucid expositions of science."--Natural History