One by one, many of the seeds are lost -- burned by the sun, fallen into the ocean, eaten by a bird. But some survive the long winter and, come spring, sprout into plants, facing new dangers -- trampled by playing children, picked as a gift for a friend. Soon only the tiniest seed remains, growing into a giant flower and, when autumn returns, sending its own seeds into the wind to start the process over again. Eric Carle's eloquent text and brilliant collages turn the simple life cycle of a plant into an exciting story, a nature lesson, and an inspiring message of the importance of perseverance.

    Lehninger Principles of Biochemistry, Fourth Edition brings clarity and coherence to an often unwieldy discipline, while incorporating the field's most important recent developments and applications.

    Those principles included modern theories of atomic and molecular structure, quantum mechanics, statistical mechanics and thermodynamics. In addition, Dr. Pauling attempted to correlate the theories with descriptive chemistry, the observed properties of substances, to introduce the student to the multitude of chemical substances and their properties.In this extensively revised and updated third edition, the Nobel prizewinning author maintains an excellent balance between theoretical and descriptive material, although the amount of descriptive chemistry has been decreased somewhat, and the presentation of the subject, especially in relation to the nonmetals, has been revised in such a way as to permit greater correlation with the electronic structure of atoms, especially electronegativity. The principles of quantum mechanics are discussed on the basis of the de Broglie wavelength of the electron. The quantized energy levels of a particle in a box are derived by means of a simple assumption about the relation of the de Broglie waves to the walls of the box. No attempt is made to solve the Schrödinger wave equation for other systems, but the wave functions of hydrogen-like electrons are presented and discussed in some detail, and the quantum states for other systems are also covered. Statistical mechanics is introduced before thermodynamics, and the discussion of thermodynamics is based on it. This arrangement reflects the author's belief that beginning students can understand statistical mechanics better than chemical thermodynamics. Aimed at first-year college students who plan to major in chemistry or closely related fields, the book is written in a logical, clear and understandable style. In addition, many excellent figures are included, along with numerous problems and 75 pages of appendixes covering such topics as symmetry of molecules and crystals, hybrid bond orbitals, and magnetic properties of substances.

    

    The boy who became a famous naturalist was never again to see the spectacle except in his imagination. That childhood event contributed to the profound sense of time and space that marks The Invisible Pyramid. This collection of essays, first published shortly after Americans landed on the moon, explores inner and outer space, the vastness of the cosmos, and the limits of what can be known. Bringing poetic insight to scientific discipline, Eiseley makes connections between civilizations past and present, multiple universes, humankind, and nature.

    His voluminous notebooks, the great storehouse of his theories and discoveries, are presented here in 1566 extracts that reveal the full range of Leonardo's versatile interest: all the important writings on painting, sculpture, architecture, anatomy, astronomy, geography, topography, and other fields are included, in both Italian and English, with 186 plates of manuscript pages and many other drawings reproduced in facsimile size.The first volume, which contains all of Leonardo's writings on aspects of painting, includes discussions of such basic scientific areas as the structure of the eye and vision, perspective, the science of light and shade, the perspective of disappearance, theory of color, perspective of color, proportions and movements of the human figure, botany for painters, and the elements of landscape painting. A section on the practice of painting includes moral precepts for painters and writings on composition, materials, and the philosophy of art. The second volume contains writings on sculpture, architecture (plans for towns, streets, and canals, churches, palaces, castles, and villas, theoretical writings on arches, domes, fissures, etc.), zoology, physiology (including his amazingly accurate theories of blood circulation), medicine, astronomy, geography (including has famous writings and drawings on the movement of water), topography (observations in Italy, France, and other areas), naval warfare, swimming, theory of flying machines, mining, music, and other topics.A selection of philosophical maxims, morals, polemics, fables, jests, studies in the lives and habits of animals, tales, and prophecies display Leonardo's abilities as a writer and scholar. The second volume also contains some letters, personal records, inventories, and accounts, and concludes with Leonardo's will. The drawings include sketches and studies for some of Leonardo's greatest works of art — The Last Supper, the lost Battle of Anghiari, The Virgin of the Rocks, and the destroyed Sforza monument.

    Written in non-technical language, the book sets down just about everything that we know about this beautiful and - propaganda aside - shy animal, who, authorities agree, has never in this country attacked a man.' - The New York Times Book Review

    Chance and Necessity is a philosophical statement whose intention is to sweep away as both false and dangerous the animist conception of man that has dominated virtually all Western worldviews from primitive cultures to those of dialectical materialists. He bases his argument on the evidence of modern biology, which indisputably shows, that man is the product of chance genetic mutation. With the unrelenting logic of the scientist, he draws upon what we now know (and can theorize) of genetic structure to suggest an new way of looking at ourselves. He argues that objective scientific knowledge, the only reliable knowledge, denies the concepts of destiny or evolutionary purpose that underlie traditional philosophies. He contends that the persistence of those concepts is responsible for the intensifying schizophrenia of a world that accepts, and lives by, the fruits of science while refusing to face its moral implications. Dismissing as "animist" not only Plato, Hegel, Bergson and Teilhard de Chardin but Spencer and Marx as well, he calls for a new ethic that will recognize the distinction between objective knowledge and the realm of values--an ethic of knowledge that can, perhaps, save us from our deepening spiritual malaise, from the new age of darkness he sees coming.PrefaceOf strange objects Vitalisms and animisms Maxwell's demons Microscopic cyberneticsMolecular ontogenesis Invariance and perturbationsEvolution The frontiers The kingdom and the darknessAppendixes

    His voluminous notebooks, the great storehouse of his theories and discoveries, are presented here in 1566 extracts that reveal the full range of Leonardo's versatile interest: all the important writings on painting, sculpture, architecture, anatomy, astronomy, geography, topography, and other fields are included, in both Italian and English, with 186 plates of manuscript pages and many other drawings reproduced in facsimile size.The first volume, which contains all of Leonardo's writings on aspects of painting, includes discussions of such basic scientific areas as the structure of the eye and vision, perspective, the science of light and shade, the perspective of disappearance, theory of color, perspective of color, proportions and movements of the human figure, botany for painters, and the elements of landscape painting. A section on the practice of painting includes moral precepts for painters and writings on composition, materials, and the philosophy of art. The second volume contains writings on sculpture, architecture (plans for towns, streets, and canals, churches, palaces, castles, and villas, theoretical writings on arches, domes, fissures, etc.), zoology, physiology (including his amazingly accurate theories of blood circulation), medicine, astronomy, geography (including has famous writings and drawings on the movement of water), topography (observations in Italy, France, and other areas), naval warfare, swimming, theory of flying machines, mining, music, and other topics.A selection of philosophical maxims, morals, polemics, fables, jests, studies in the lives and habits of animals, tales, and prophecies display Leonardo's abilities as a writer and scholar. The second volume also contains some letters, personal records, inventories, and accounts, and concludes with Leonardo's will. The drawings include sketches and studies for some of Leonardo's greatest works of art — The Last Supper, the lost Battle of Anghiari, The Virgin of the Rocks, and the destroyed Sforza monument.

    This new edition of the model rocketeer's "bible" shows you how to safely build, launch, track, and recover model rockets--and have fun doing it. Whether you're a beginner or a veteran model rocketeer, the Handbook of Model Rocketry, the official manual of the National Association of Rocketry (NAR), will become your well-used reference book. G. Harry Stine has been a model rocketeer since 1957 when he founded the NAR and started the first model rocket company. Stine's Handbook, after satisfying rocket enthusiasts for nearly three decades, remains the definitive resource. Recent technological progress has had a major effect on the model rocket hobby and sport. This revised and updated edition covers such new technology as: revised computer programs that use improved versions of Basic composite propellant model rocket motors recently approved reloadable model rocket motors building and flying large model rockets radio-controlled boost gliders and rocket gliders solid-state, microchip, computer-readable modules used to measure temperature, pressure, acceleration, and airspeed

    This guidebook is aimed clearly at the needs of the student, with a thorough understanding of, and provision for, the potential conceptual difficulties he or she is likely to encounter.

    These noteworthy accounts of the lives of David Hilbert and Richard Courant are closely related: Courant's story is, in many ways, seen as the sequel to the story of Hilbert. Originally published to great acclaim, both books explore the dramatic scientific history expressed in the lives of these two great scientists and described in the lively, nontechnical writing style of Contance Reid.

    Model of clear, scholarly exposition at graduate level with coverage of basic concepts, calculus of variations, principle of virtual work, equations of motion, relativistic mechanics, much more. First inexpensive paperbound edition. Index. Bibliography.

    He explains the mechanism of how this vitamin will strengthen the immune system, while continuing to benefit all of the other parts of the human organism. Pauling also discusses the differences between Vitamin C and conventional drugs.

    This work includes differential forms and the elegant forms of Maxwell's equations, and a chapter on probability and statistics. It also illustrates and proves mathematical relations.

    The author recounts his experiences observing sharks in the open seas, describes their characteristics, and discusses the safety precautions that should be taken around sharks.

    Popper's Logic of Scientific Discovery, and Thomas S. Kuhn's Structure of Scientific Revolutions. Both agree upon the importance of revolutions in science, but differ about the role of criticism in science's revolutionary growth. This volume arose out of a symposium on Kuhn's work, with Popper in the chair, at an international colloquium held in London in 1965. The book begins with Kuhn's statement of his position followed by seven essays offering criticism and analysis, and finally by Kuhn's reply. The book will interest senior undergraduates and graduate students of the philosophy and history of science, as well as professional philosophers, philosophically inclined scientists, and some psychologists and sociologists.

    This book provides a remedy with wide representation of the interests, problems, and diverse philosophic issues that preoccupied the greatest scientific mind of the seventeenth century.Grouped in sections corresponding to methods, principles, and theological considerations, these selections feature cross-references to related essays. Starting with an examination of the methods of natural philosophy — including the rules of reasoning, the formulation of hypotheses, and the experimental method — the essays explore the laws of motion and the relationships between God and gravity, creation, and universal design. Discussions of questions related to natural philosophy include theories on light, colors, and perceptions. The volume concludes with absorbing selections from the Opticks and a helpful series of historical and explanatory notes.

    The book is structured the same as the previous edition, but every chapter has been updated to take into account recent developments, with numerous new references and figures. New and expanded features include: extensive modifications to the chapter on Movement, Muscle and Biomechanics; new material on respiratory pigments; feeding and digestion in shrimp and hoatzin; plant defense compounds; diving in seals; high temperature tolerance; the patch clamp method for ion channel research; the pineal gland and melatonin. Two-color throughout for clear description and illustration of fundamental principles.

    G. Jung's work in his later years suggested that the seemingly divergent sciences of psychology and modern physics might, in fact, be approaching a unified world model in which the dualism of matter and psyche would be resolved. Jung believed that the natural integers are the archetypal patterns that regulate the unitary realm of psyche and matter, and that number serves as a special instrument for man's becoming conscious of this unity.Writen in a clear style and replete with illustrations which help make the mathematical ideas visible, Number and Time is a piece of original scholarship which introduces a view of how "mind" connects with "matter" at the most fundamental level.

    

    

    It has been widely adopted by police academies, community colleges, and universities and is recommended for preparation for certification exams. Written in an easy-to-read style, this comprehensive text offers up-to-date technical expertise that the author has developed over many years in law enforcement. Includes check-off lists, case studies, and 16 pages of full-color illustrated photos. Also included is an appendix on equipment for crime scene investigations and a companion CD for training.

    Levin provides comprehensive coverage of recent, revolutionary advances in modern quantum-chemistry methods for calculating molecular electronic structure.

    A volume in Norman's home study course on cosmology, this volume with seven lessons on sleep teaching, energy, magnetic hysteresis, causal worlds, cosmic cycle of creation, the psychic anatomy of man and the fourth dimensional body, the subconscious, third dimensional sciences, mental function, hypnosis, infinite creation, more.

    

    - Index.Dates of available copies: 1972.398,[16]p. : ill., facsim., maps ; 20cm.

    Focusing on heredity, which Jacob considers the fundamental feature of living things, he shows how, since the sixteenth century, the scientific understanding of inherited traits has moved not in a linear, progressive way, from error to truth, but instead through a series of frameworks. He reveals how these successive interpretive approaches--focusing on visible structures, internal structures (especially cells), evolution, genes, and DNA and other molecules--each have their own power but also limitations. Fundamentally challenging how the history of biology is told, much as Thomas Kuhn's Structure of Scientific Revolutions did for the history of science as a whole, The Logic of Life has greatly influenced the way scientists and historians view the past, present, and future of biology.

    

    It extends these concepts to the segregation of genes that cause genetic variation in quantitative traits. Key techniques and methods are also covered.

    Yet today men mine valuable resources by whatever method brings the greatest profit in the shortest time, leaving the earth ravaged. They hunt and fish for pleasure, not food, leaving animal carcasses behind to rot. They worship self and ignore the God who made them.The answer to the ecological crises of our day is found only in the glorious truths of biblical Christianity: God created ex nihilo; He is both infinite and personal; we are made in His image and thus have great value in Him; Christ's death brought redemption from the consequences of the Fall (for believing individuals now and for all creation when He returns).There are indeed serious ecological crises in our world, but, says Dr. Francis A. Schaeffer, one of the greatest Christian thinkers of our time: "The Christian who believes the Bible should be the man who--with God's help and in the power of the Holy Spirit--is treating nature now in the direction of the way nature will be [when Christ returns].... God's calling to the Christian now, and to the Christian community, in the area of nature... is that we should exhibit a substantial healing here and now."A powerful Christian classic--a marvelous theological response to ecological danger signals.

    It presents the field of population genetics, starting with elementary concepts and leading the reader well into the field. It is concerned mainly with population genetics in a strict sense and deals primarily with natural populations and less fully with the rather similar problems that arise in breading livestock and cultivated plans. The emphasis is on the behavior of genes and population attributes under natural selection where the most important measure is Darwinian fitness. This text is intended for graduate students and advanced undergraduates in genetics and population biology This book steers a middle course between completely verbal biological arguments and the rigor of the mathematician. The first two-thirds of the book do not require advanced mathematical background. An ordinary knowledge of calculus will suffice. The latter parts of the book, which deal with population stochastically, use more advanced methods. Chapter Titles: 1.Models of population growth. 2.Randomly mating populations. 3.Inbreeding. 4.Correlation between relatives and assertive mating. 5.Selection. 6.Populations in approximate equilibrium. 7.Properties of a finite population. 8.Stochastic processes in the change of gene frequencies. 9.Distribution of gene frequencies in populations. Appendix. Some statistical and mathematical methods frequently used in population genetics. Bibliography. Glossary. Index.

    Thomas Gladwin has written a beautiful and perceptive book which describes the complex navigational systems of the Puluwat natives, yet has done so principally to provide new insights into the effects of poverty in Western cultures.The cognitive system which enables the Puluwatans to sail their canoes without instruments over trackless expanses of the Pacific Ocean is sophisticated and complex, yet the Puluwat native would score low on a standardized intelligence test. The author relates this discrepancy between performance and measured abilities to the educational problems of disadvantaged children. He presents his arguments simply and clearly, with sensitive and detailed descriptions and many excellent illustrations. His book will appeal to anthropologists, psychologists, and sailing enthusiasts alike.

    Well written and superbly illustrated, this work includes chapters on tectonic plates, volcanoes, erosion by water and wind, the ocean, ice and glaciers, earthquakes and tsunamis.

    Included are physical and chemical characteristics of flowing waters, plantlife, the benthos, fish and finally, man's effects on watercourses. The book continues to be widely read and influential in the field. "Professor Hynes has produced a superb book." Freshwater Biology. "Dr. Hynes is to be congratulated on writing so valuable a book" The Journal of Ecology. "This is an excellent book, mainly for the student and professional, to whom it will be a mine of information and sound ideas for many years." New Scientist and Science Journal "This book is a must for the student of aquatic biology. The book, like the author, can only be held in the highest esteem." The Canadian Field Naturalist Noel Hynes is Distinguished Emeritus Professor at the University of Waterloo. He received his Ph.D. in 1941 from the University of London. After a period in Trinidad studying tropical agriculture, and wartime work on locusts in East Africa, he was appointed to an academic post at the University of Liverpool. In 1964, he moved to Canada to build the Department of Biology at the University of Waterloo, where he remained until his retirement. His research has been concentrated upon the biology of rivers and streams, and he has published over 180 scientific papers, two scientific books and an autobiography. He has been honored by receiving the Neumann/Thienemann Medal of the International Society of Limnology, the highest honor in his field of work.

    

    Contents: Preface, A Short History of Ethology, The Ethogram: A Behavioral Inventory, The Fixed Action Pattern (Inborn Skills), Motivating Factors, Behavior as a Response to a Stimulus, Releasers (Expressive Movements and Other Social Signals), Natural Models and Mimicry, Reaction Chains, The Heirarchical Organization of Behavior, Phylogenetic Development of Behavior Patterns, The Ontogeny of Behavior Patterns, Mechanisms of Learning, Ecology and Behavior, Orientation in Space, Temporal Factors in Behavior, The Ethology of Man, Bibliography, Author Index, Subject Index.

    No tears or stains visible.

    Included are approximately sixty new pages of text and forty new photographs and pictures. Thomas A. Mutch has written this book for students of lunar geology and scientists in diverse fields related to astrogeology as well as for the interested layman.Originally published in 1973.The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.

    

    The Hamlyn Guide to Birds of Britain and Europe

    Included are articles on the nature of physical symmetry, invariance and conservation principles, the structure of solid bodies and of the compound nucleus, the theory of nuclear fission, the effects of radiation on solids, and epistemological problems of quantum mechanics. Other articles deal with the story of the first man-made nuclear chain reaction, the long-term prospects of nuclear energy, the problems of Big Science, and the role of mathematics in the natural sciences. In addition, the book contains statements of Wigner's convictions and beliefs, as well as memoirs of his friends, Enrico Fermi and John von Neumann.

    Harrison, Dean Emeritus of M.I.T.''s School of Science, writes as follows: "Basic to man''s behavior is his ability to determine, modify, and adapt to his environment. This he has been able to do in proportion to his skill at making measurements, and fundamental to all other measuring operations is his ability to determine locations in the material world. Thus the science of mechanical measurements is a fundamental one. It is this science, and the art which accompanies and informs it, with which this book is concerned."Classic text on precision engineering with over 550 photographs and engineering drawings, “Foundations of Mechanical Accuracy” has been translated into seven different languages with over 15,000 copies sold. How to attain precision in manufacturing to millionths of an inch and control such accuracies by appropriate measuring techniques is described and illustrated in this new book. Its author, Wayne R. Moore, devoted seven years to its research and writing. Acclaimed by leaders in science and industry throughout the world, the book is an invaluable source of ideas and a reference book of lasting value for everyone concerned with precision measurement and machining to ultra close tolerances. Contained in its 353 pages are over 550 photographs and engineering drawings-most of them original. Much of the information in the book has never before appeared in print. The subject matter is based in large part on the "four arts" underlying the attainment of mechanical accuracy: geometry, standards of length, dividing the circle, and roundness. A fifth section covers the techniques and applications of the Universal Measuring Machine.

    Brian Barry's short, provocative book played no small part in the debate that precipitated this shift. . . . Without reservation, Barry's treatise is the most lucid and most influential critique of two important, competing perspectives in political analysis: the 'sociological' school of Talcott Parsons, Gabriel Almond, and other so-called functionalists; and the 'economic' school of Anthony Downs and Mancur Olson, among others."—Dennis J. Encarnation, American Journal of Sociology

    Its 16 extensively illustrated chapters consider the food traditions of New England coastal people, of cooks aboard fishing and deepwater vessels, and the celebration of Christmas, Thanksgiving, Fourth of July and the fruits of summer. Each chapter is followed by historic recipes, 185 in all, interpreted for the modern cook. Winner of the 1996 Julia Child Cookbook Award for distinguished culinary scholarship.

    Problems encountered as science makes genetic control of man a real possibility. Includes discussions of asexual reproduction of men, frozen semen banks, breeding human beings for special purposes.

    

    In his extraordinary book, Mayr fully explored, synthesized, and evaluated man's knowledge about the nature of animal species and the part they play in the process of evolution.In this long-awaited abridged edition, Mayr's definitive work is made available to the interested nonspecialist, the college student, and the general reader. The author has retained the dominant themes of his original study--themes now more widely accepted than they were in 1963: the species is the most important unit of evolution; individuals (and not genes) are the targets of natural selection, hence the fitness of a gene is a nebulous if not misleading concept; and the most important genetic phenomena in species are species-specific regulatory systems that give species internal cohesion.Each of the twenty chapters of the original edition has been revised; six have been extensively reworked. Discussions of peripheral subjects and massive citations of the literature have been eliminated, but the glossary has been greatly expanded. The focal point of the volume is, naturally, the species--a reproductively isolated aggregate of interbreeding populations. Presenting an overview of evolutionary biology in Chapter 1, Mayr then considers the nature of species, their population structure, their biological interactions, the multiplication of species, and their role in evolution.Because of the impossibility of experimenting with man and because an understanding of man's biology is indispensable for safeguarding his future, emphasis throughout the book is placed on those findings from higher animals which are directly applicable to man. The last chapter, Man as a Biological Species, is of particular interest to the general reader. Mayr concludes that while modern man appears to be as well adapted for survival purposes as were his ancestors, there is much evidence to suggest that he is threatened by the loss of his most typically human characteristics.

    John C. Merriam who, at that time, was a member of the faculty of the University of Oregon. The Lectureship was named in honor of Dr. Thomas Condon, the first professor of Geology at the University.The 1968 Condon Lectures by Dr, Sagan were delivered at the University of Oregon, Oregon State University, and Portland State University.

    Kennedy on May 25, 1961, initiating the expedition to the moon, is now documented in full for future students of history. To John Logsdon, whose approach is that of a political scientist examining the influence of men and events on the decision-making process, the decision to land a man on the moon "before this decade is out" was wholly political rather than military, although overtones of implied defense were useful in obtaining congressional support. Moreover, he notes it was made without the support of the scientific community, although their previous research efforts were expected partially to offset this deterrent.Although the success of the Russian manned orbit and the fiasco of the Bay of Pigs invasion certainly influenced the timing, in the author's interpretation the Kennedy decision manages to escape the narrow definition of a public relations exhibition. In Kennedy's view, he emphasizes, the security of the country itself was inseparably linked to a position of prestige in world opinion. Nor was he a particular enthusiast of space exploration for its own rewards. As he remarked to one of his advisors, "If you had a scientific spectacular on this earth that would be more useful--say desalting the ocean--or something just as dramatic and convincing as space, then we would do "that.""The thoroughness of this book as a historical record is evident throughout. NASA historical records and government documents not previously released, including several Presidential papers, are used in the analysis, and the author weaves these records together with subtleties of opinion from interviews with NASA officials and such Kennedy advisors as Theodore Sorenson, McGeorge Bundy, David Bell, and Jerome Wiesner.

    In 1912 he succeeded H.A. Lorentz at Leiden and his early years there are covered in detail. He was a close personal friend of Albert Einstein and the first decade of this friendship is portrayed through their correspondence.

    A professional biologist, veteran ornithologist, and well-known wildlife photographer, Johnston is the perfect guide for a natural-history trip into the Sierra. Regardless of how one explores the magnificent 400-mile-long mountain range, on foot or by car, in an armchair or a classroom, this is the book to have.Beginning with the western foothills, Johnston evokes a vivid picture of the varied plant and animal life encountered as the elevation increases, tops the crest, and drops to the more precipitous, arid eastern Sierra slope. The reader is taken through chaparral and mountain meadows, pine and fir forests, granite expanses and snowy peaks. Johnston writes of the Native Americans' uses and stewardship of the land, the role of fire in forest ecology, the eras of sheep herders and loggers, the work of John Muir and other preservationists, and the battles to save Mono Lake and Lake Tahoe. Her lifetime of field experience and discovery offers intimate observations of rarely recorded events: the courtship of the Sierra Nevada salamander, a wolverine attacking two bears, a fight to the death between a skink and a scorpion.Many changes have occurred in the Sierra since the first edition of this book was published, including acid snow, tensions involving human and cougar habitats, and an ominous drop in amphibian populations. Johnston documents these events and updates the ecological research in the rich, evocative writing style that makes her book a naturalist's treasure. This is a guide to the Sierra Nevada for the next millennium.

    Text and illustrations introduce aquatic reptiles that swam in the oceans more than 70 million years ago.

    Due to its age, it may contain imperfections such as marks, notations, marginalia and flawed pages. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions that are true to the original work.

    

    Acton deals with a commonsense approach to numerical algorithms for the solution of equations: algebraic, transcendental, and differential. He assumes that a computer is available for performing the bulk of the arithmetic. The book is divided into two parts, either of which could form the basis of a one-semester course in numerical methods. Part I discusses most of the standard techniques: roots of transcendental equations, roots of polynomials, eigenvalues of symmetric matrices, and so on. Part II cuts across the basic tools, stressing such commonplace problems as extrapolation, removal of singularities, and loss of significant figures. The book is written with clarity and precision, intended for practical rather than theoretical use. This book will interest mathematicians, both pure and applied, as well as any scientist or engineer working with numerical problems.

    

    NA

    It is unquestionably the best book of its kind for either broad or more limited studies of electrical fundamentals.It is divided in to 21 chapters and an extensive section of appendixes. Chapters cover safety, fundamental concepts of electricity, baueries, electromagnetism and magnetic circuits, introduction to alternating-cu rent electricity, inductance, capacitance, inductive and capacitive reactance, fundamental alternating-current circuit theory, circuit protective and control devices, electrical indicating instruments, alternating-current generators and transformers, alternating-current motors, direct current genera tors, direct-current motors, magnetic amplifiers, and synchros and servomechanisms. Appendixes acquaint the layman with common terms, abbreviations, Acomponent color-code, and more."

    Both books became instant classics that were used as textbooks for many years and eventually became the basis for our contemporary digital computer systems. The book discusses direct theories of finite differences and integration, linear equations, variations of a constant, and equations of partial and mixed differences. Boole also includes exercises for daring students to ponder, and also supplies answers. Long a proponent of positioning logic firmly in the camp of mathematics rather than philosophy, Boole was instrumental in developing a notational system that allowed logical statements to be symbolically represented by algebraic equations. One of history's most insightful mathematicians, Boole is compelling reading for today's student of logic and Boolean thinking.

    

    The most widely adopted sociology multi-media learning package. Authoritative, comprehensive, and stimulating, this carefully coordinated combination textbook, CD-ROM, and Website offers a fresh and contemporary perspective-with a focus on the major methods, theories, and findings of the field. Its emphasis on cultivating a global perspective , its multicultural view , its focus on critical thinking , and its abundance of boxed features and full program of colorful maps bring sociology to life and appeal to students across all academic backgrounds.