It is the root of our existence, supporting our feet, our farms, our cities. This fascinating yet disquieting book finds, however, that we are running out of dirt, and it's no laughing matter. An engaging natural and cultural history of soil that sweeps from ancient civilizations to modern times, Dirt: The Erosion of Civilizations explores the compelling idea that we are—and have long been—using up Earth's soil. Once bare of protective vegetation and exposed to wind and rain, cultivated soils erode bit by bit, slowly enough to be ignored in a single lifetime but fast enough over centuries to limit the lifespan of civilizations. A rich mix of history, archaeology and geology, Dirt traces the role of soil use and abuse in the history of Mesopotamia, Ancient Greece, the Roman Empire, China, European colonialism, Central America, and the American push westward. We see how soil has shaped us and we have shaped soil—as society after society has risen, prospered, and plowed through a natural endowment of fertile dirt. David R. Montgomery sees in the recent rise of organic and no-till farming the hope for a new agricultural revolution that might help us avoid the fate of previous civilizations.

    To understand algebra is to possess the power to grow your skills and knowledge so you can ace your courses and possibly pursue further study in math. Algebra II For Dummies is the fun and easy way to get a handle on this subject and solve even the trickiest algebra problems. This friendly guide shows you how to get up to speed on exponential functions, laws of logarithms, conic sections, matrices, and other advanced algebra concepts. In no time you'll have the tools you need to:Interpret quadratic functions Find the roots of a polynomial Reason with rational functions Expose exponential and logarithmic functions Cut up conic sections Solve linear and non linear systems of equations Equate inequalities Simplifyy complex numbers Make moves with matrices Sort out sequences and sets This straightforward guide offers plenty of multiplication tricks that only math teachers know. It also profiles special types of numbers, making it easy for you to categorize them and solve any problems without breaking a sweat. When it comes to understanding and working out algebraic equations, Algebra II For Dummies is all you need to succeed!

     In Mad Science, Theodore Gray launches a toy rocket using the energy released from an Oreo cookie, ignites a phosphorus sun by suspending half a gram of white phosphorus in a globe filled with pure oxygen and creates a homemade hot tub by adding 500 pounds of quicklime to water. These are just a few of the 54 experiments included in this astonishing book that demonstrates essential scientific principles in ways you were likely never exposed to in school. Every experiment in Mad Science is accompanied by full-color photographs that provide a front-row seat to rarely seen chemical reactions and glorious subatomic activity. To further enhance the hands-on experience, Gray includes step-by-step instructions for nearly every experiment. Following all of the safety guidelines, readers can even re-create some of the experiments in the book. Mad Science is the perfect book for anyone fascinated by all things chemical, electrical, or explosive, and who loves a vicarious thrill.

    Coverage includes basic procedures such as spays, castrations, and declaws, as well as more advanced surgeries that might be referred to specialists such as craniotomy, ventral slots, and lung lobectomy. Discussions of general surgical procedures include sterile technique, surgical instrumentation, suturing, preoperative care, and antibiotic use. Key sections provide clinically relevant coverage of soft tissue surgery, orthopedic surgery, and neurosurgery.Over 1500 full color illustrations provide exceptionally clear representations of anatomy and currently accepted surgical techniques, including approaches and closure.Over 600 full color photographs and radiographs offer clear images of specific disorders, diseases, and procedures.Information on the most efficient and cost-saving sterilization techniques including scrubless and waterless preparation solutions.General considerations and clinically relevant pathophysiology sections provide practical information for case management.Step-by-step instructions for surgical techniques are presented in italicized blue type for quick and easy reference.Special icons identify advanced procedures that should be referred to an experienced surgeon or specialist.Color-coded tables and boxes call attention to specific data, offering at-a-glance access to key information such as drug dosages, clinical signs, and analgesic protocols.Anesthesia Protocols provide quick and easy access to recommendations for anesthetizing animals with particular diseases or disorders.A new chapter on Fundamentals of Physical Rehabilitation details the basics of physical rehabilitation for practitioners who want to integrate physical therapy into practice.A new chapter on Principles of Minimally Invasive Surgery that describes the principles of performing surgery with the least instrumentation possible, including instrument selection and care and basic techniques.A new chapter on Surgery of the Eye that discusses diseases and disorders of the eye, their medical management, and corrective surgical procedures.Expanded coverage of perioperative multimodal analgesic therapy.Updated coverage of arthroscopy, canine elbow dysplasia, joint replacement, and management of osteoarthritis.The latest information on state-of-the-art radiologic techniques.

    Mile-by-mile road logs document every approach to the park and every interior road. Through charts and explanations, readers learn of Yellowstone's campgrounds and facilities, geyser basins and the frequency of the geyser eruptions, and out-of-the-way hikes. Updates include descriptions of new lodgings, scientific information reflecting recent research, 65 new color photos, and revised maps. A field guide to the animals and plants, a selected reading list, and a 21-page index round out this comprehensive guidebook.

    It is the most complete photographic guide to British birds ever published and the only one to be designed to give everything that you need on each spread in a simple-to-use format. Every text entry covers identification of adults and juveniles, songs and calls, and where they are most likely to be found.Illustrated with specially commissioned photography and maps to show where in Britain the birds are found and at what time of year, this accessible guide also features cross-references to similar-looking species, containing everything a birdwatcher needs to know in one, easy-to-use, portable volume. It is the perfect photographic field guide for the birdwatching beginner.

    The beauty and importance of minerals, metals, crystals, fossils, and gemstones are shown in page after page of vivid photos.

    He shows how a forensic approach to volcanology reveals the richness and complexity behind cause and effect, and argues that important lessons for future catastrophe risk management can be drawn from understanding events that took place even at the dawn of human origins.

    Illustrated with luscious collages by acclaimed artist Ann Field, this enchanting tribute to the power and symbolism of flowers offers a contemporary introduction to an age-old tradition. The text draws on botanical, historical, and mythological sources worldwide, from ancient Rome to Victorian England, from Asia to the Americas, presenting portraits of almost 50 blossoms favored for all time. In Persia, for instance, the black medulla of the red tulip was said to represent the lover's heart, burnt to a coal by love's passion. To Victorians, lavender signified a broken trust, hollyhocks fertility, and nasturtiums a jest or whimsy. Blending fact, folktale, natural history, and original art, The Meaning of Flowers explores the language and lore of nature's most intimate and beautiful gifts.

    John Wright describes their origins and long history in the life of the countryside, their natural history, the crafts involved in their planting and maintenance, and the huge variety in their ages, sizes, shape, composition and functions. He looks too at the drystone walls of Scotland, Devon, Cornwall, the Cotswolds, and the north of England, some of which date back thousands of years. John Wright is one of Britain's best known naturalists. His account is a fascinating amalgam of natural and cultural history brought vividly to life by his intimate knowledge of the countryside. The characteristic landscapes of the British regions, the hedgerow and dry-stone crafts, and every species described in the book are illustrated with photographs, almost all taken by the author. The book is informative, practical and entertaining, something to read by the fire in winter and to stuff into your pocket for country walks in every season.

    In this beautiful new one-volume edition, modern readers are introduced to one of the best nature writers of the last century. More than one hundred of the original illustrations by Paul Landacre highlight the eloquent and entertaining accounts of American trees. As we read Peattie's descriptions, we catch glimpses of our country's history and past daily life that no textbook could ever illuminate so vividly.Here you'll learn about everything from how a species was discovered to the part it played in our country’s history. Pioneers often stabled an animal in the hollow heart of an old sycamore, and the whole family might live there until they could build a log cabin. The tuliptree, the tallest native hardwood, is easier to work than most softwood trees; Daniel Boone carved a sixty-foot canoe from one tree to carry his family from Kentucky into Spanish territory. In the days before the Revolution, the British and the colonists waged an undeclared war over New England's white pines, which made the best tall masts for fighting ships. It's fascinating to learn about the commercial uses of various woods -- for paper, fine furniture, fence posts, matchsticks, house framing, airplane wings, and dozens of other preplastic uses. But we cannot read this book without the occasional lump in our throats. The American elm was still alive when Peattie wrote, but as we read his account today we can see what caused its demise. Audubon's portrait of a pair of loving passenger pigeons in an American beech is considered by many to be his greatest painting. It certainly touched the poet in Donald Culross Peattie as he depicted the extinction of the passenger pigeon when the beech forest was destroyed. A Natural History of North American Trees gives us a picture of life in America from its earliest days to the middle of the last century. The information is always interesting, though often heartbreaking. While Peattie looks for the better side of man's nature, he reports sorrowfully on the greed and waste that have doomed so much of America's virgin forest.

    

    This field guide is divided into two large sections -- one devoted to minerals and one to rocks, each prefaced by a comprehensive introduction that discusses formation, chemistry, and more. All 377 entries, beautifully illustrated with color photographs and helpful visual symbols, provide descriptions and practical information about appearance, classification, rarity, crystal formation, mode of occurrence, gravity of mineral, rock chemistry, modal classification fields, formational environments, grain sizes of rocks, and much more. Whether you are a serious collector or an information-seeking amateur, this incomparably beautiful, authoritative guide will prove an invaluable reference.

    With whimsically hip illustrations, every page is an extraordinary look at all kinds of subjects, from mineral formation and the inside of a volcano to what makes sunsets, monarch butterfly migration, the ecosystem of a rotting log, the parts of a bird, the anatomy of a jellyfish, and much, much more.

    It hold the remains of an ancient sea where dozens of strange creatures lived—a forgotten corner of evolution preserved in awesome detail. In this book Stephen Jay Gould explores what the Burgess Shale tells us about evolution and the nature of history.