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The original papers which appear in this volume were initially presented in a series of sessions of the Ad Hoc Group on Alienation Theory and Research at the 1974 World Congress of Sociology in Toronto, Canada. This group was organized by the editors as a result of their longstanding research and teaching interest in the field. The purpose of the Toronto sessions was to provide an international forum where scholars and researchers could come to­ gether for a personal exchange of ideas and research findings. To our know­ ledge this was the first forum of its kind concerned specifically with aliena­ tion theory and research. More than fifty theoretical and empirical papers from thirteen countries and several overlapping disciplines were organized into panels and workshops during the span of four days. The response to these sessions indicates that interest in the study of alienation by philosophers and social scientists continues unabated. The Toronto sessions were organized largely around a fundamental concern for further theoretical development and conceptual clarification in the alienation field. The papers selected for this volume reflect this thematic concern. Although many excellent empirical papers were presented, it was generally felt that meaningful empirical research would benefit from a continued elaboration and refinement of alienation theory. The present collection is consequently geared to problems of meaning, theory, and method. Considerable emphasis is also placed on a critical evaluation of the alienation theme as it has evolved from social philosophy to empirical social research.

This book is written primarily for the family to help solve the meat problem and to augment the food supply. Producing and preserving meats for family meals are sound practices for farm families and some city folks as well-they make possible a wider variety of meats, which can be of the best quality, at less cost. Meat is an essential part of the American diet. It is also an ex­ pensive food. With the costs high, many persons cannot afford to buy the better cuts; others are being forced to restrict the meat portion of the diet to a minimum, or to use ineffectual substitutes. Commercially in the United States, meat means the flesh of cattle, hogs, and sheep, except where used with a qualifying word such as reindeer meat, crab meat, whale meat, and so on. Meat in this book is used in a broader sense, although not quite so general as to com­ prise anything and everything eaten for nourishment either by man or beast. To be sure, it includes the flesh of domestic animals and large and smallgame animals as well; also poultry, domestic fowl raised for their meat and eggs, and game birds, all wild upland birds, shore birds, and waterfowl; and fish.

This book should be of interest to manufacturers of plastics products and fillers, plastics designers, engineers and polymer chemists.

A modern, comprehensive compilation of more than 7,000 entries covering themes, concepts, and discoveries in archaeology written in nontechnical language and tailored to meet the needs of professionals, students and general readers. The main subject areas include artifacts; branches of archaeology and chronology; culture; features; flora and fauna; geography; geology; language; people; related fields; sites; structures; techniques and methods; terms and theories; and tools.

The pressing of sheet metal into useful shapes is a technology which requires an understanding of a wide range of subjects. This text is divided into three sections: processes, materials and tests. In Part 1, sheet metal forming is examined mainly from a mechanical engineering viewpoint; firstly plasticity and anisotropy, then process variables - friction, lubrication and temperature - and finally practical aspects of forming in the press-shop. Part 2 deals with the main sheet alloys at varying lengths, depending on their industrial popularity. Certain research results, showing the fallibility of the phenomenological approach, are also highlighted. A section of testing procedures concludes the volume.

Experiments on rocks, minerals, magmas and fluids have contributed to the better understanding of geological processes in recent years. This introduction to experimental geochemistry and petrology is intended to stimulate earth scientists to further experimentation. With the use of case histories illustrating principles and techniques, the authors explain why experiments are useful, what kind of work can be done, what some of the major problems and limitations are and how they can be avoided.

Economic plants have been defined by SEPASAT as those plants that are utilised either directly or indirectly for the benefit of Man. Indirect usage includes the needs of Man's livestock and the maintenance of the environment; the benefits may be domestic, commercial or aesthetic. Economic plants constitute a large and so far uncalculated percentage of the quarter of a million higher plants in the World today. However, it has been calculated that 10% (25 000) of these species are now on the verge of extinction and extinction means that a genetic resource that could be of benefit to Man will be lost for ever. Furthermore, for every species lost an estimated 10-30 other dependent organisms are also doomed. Fewer than 1 per cent of the World's plants have been sufficiently well studied for a true evaluation of the potential floral wealth awaiting discovery, not only in the rain forests, which man is now actively destroying at a rate of 20 ha a minute, but also in the very much neglected dry areas of the World.

An introductory textbook for students, offering a condensed yet detailed overview of the principles and practise of plant growth analysis. Each topic is explained by the use of standardized accounts of each growth analytical concept, and there are questions and answers to aid experimental design. The book gives concise outlines on the design and implementation of growth experiments, and clear guidelines to the interpretation of results. This, together with supporting commentary, facilitates full assessment of the performance of whole plant systems and plant cell cultures grown under natural, semi-natural and controlled conditions.

Parasitic worms (helminths) are a diverse and geographically widespread group of organisms which are responsible for infecting millions of people throughout the world. Many of these parasitic helminths are either zoonoses (disease agents naturally transmitted between vertebrate animals and man) or have evolved from animal parasites. Helminthic parasitism may be responsible for asymptomatic, mild, severe and even lethal infections in humans and some vertebrate animals. Many of these helminth species are primarily resticted to tropical and subtropical areas and others have greater prevalence in warm climates. In Africa, parasitic helminths, many of which are zoonoses, are of significant public health importance, are responsible for economic losses, may hamper rural development programmes and generally slow down the pace of economic development. Human migration and movements due to the ever expanding population, wars, famine or modiciation of the environment, and the increased proximity of people to areas inhabited by a great diversity of wildlife species, make zoonoses of special interest in Africa.Patterns of transmissions of helminth parasites (in Africa) are highly influenced by social and cultural interactions and by the unique variety of wildlife and habitats. It is not surprising therefore that approaches to the study and control of parasitic zoonoses usually requires a complex intersectorial co-operation between medical and veterinary experts, parasitologists, biologists, zoologists, demographers, anthropologists and engineers. This book is a selective, rather than a comprehensive, compilation on parasitic helminths, with some emphasis on helminth zoonoses, particularly those which are important in the context of Africa. Furthermore, the importance of animal models has been highlighted for some helminth parasites. The title of this book strongly reflects the three areas, ie. parasitic worms, zoonoses and Africa, in which the work of one man, Professor George Stanley Nelson, has made a major impact over a 40 year period. This volume was conceived with George Nelson Nelson very much in mind and is dedicated to him on his retirement.The subject of the chapters strongly reflect areas where he contributed directly or indirectly, and all the authors have worked with him or been influenced by him.

This book covers a wide range of processes which govern the properties and evolution of the deep continental crust. The response of rocks to conditions of deep crustal metamorphism and the onset of melting is a fundamental part of large-scale geological history which researchers have only recently begun to understand in any detail. This book aims not only to document recent research on this important area of geology but also to explain current methods of investigation and the interpretation of results. The main aspects of petrology of high-grade, regional metamorphic rocks are covered as well as melting and fluid transport within the Earth's crust. Chapters on theoretical framework and relevant experiments are complemented by others on key regions illustrating high-grade metamorphism. These include Sri Lanka and central Australia, which are now being studied intensively for the first time, and the classic ground of the Adirondack Mountains in New York and the Lewisian of Scotland. The study of these areas is based largely on petrological lines but tectonic settings are also considered.As a guide to recent developments, the book is considered essential reading for research workers and students of geology and should provide an invaluable reference work for lecturers and a useful introduction for non-specialist geologists.

As a text on paleosols, this book applies the expertise of soil science to ancient sequences of non-marine rocks. It provides an interdisciplinary bridge between the interests of soil scientists, sedimentary geologists and paleontologists, outlining the methods for the study and interpretation of paleosols, and sketching the long geological history of life and landscapes on Earth. Written principally for the student, this provides basic information on how to recognize, map and name paleosols; soil-forming factors most readily and reliably interpreted from paleosols; and addresses the evolution of soils. The book should serve both as a course text and as a professional reference. It is aimed at students and researchers in sedimentary geology, paleontology and soil science; archaeologists, paleoanthropologists and prehistorians concerned with environmental reconstruction.

This text outlines the history of life on earth, showing how the biosphere and planet have evolved together as a single complex system. Few other texts effectively convey this part of geological or biological studies as well as this introductory level text. The contents comprehensively survey the course of events and describe the circumstances that have led up to life on Earth as scientists understand it today. Starting with the origins of the solar system, the text demonstrates how life has developed with the physical evolution of the planet. It also examines how, throughout geological history, the planet has shaped life and how life has shaped the planet, governing the atmosphere and influencing the geological evolution of the continents and oceans. This fascinating account includes topics such as: precambrian life and geological evolution; the development of the eukaryotes; the evolution of the vertebrates; continental drift, sea floor spreading and plate tectonics; the history of the atmosphere; the construction of an interdependent biosphere.This book should be of interest to first year geology or environmental science undergraduate students taking a general introductory course in the history of the earth; biology and geology students as an introduction to the history of life; and arts and social science students taking a general introductory science course.

Life has shaped the Earth, and the Earth has moulded the history of life. That history, the co-evolution of our ancestors and their horne, has much to teach us about our place on the planet today. We are part of the fabric of the biosphere. As we change that fabric we would be wise to understand how our horne was built. Our planet is neither a hotel nor a colony. It is not a place which life briefly inhabits during a transient occupation. Instead, it is our horne, designed by the deeds of our ancestors and suited to our own needs. The history of life on Earth is held in the geological record, which is composed of the rocks, water and air that are available for study on the planet's surface. These rocks, the oceans and the atmosphere are not simply stores of information for the excitement of fossil hunters and geochemists, or resources to exploit without thought. Their cre­ ation and continued existence form an integral part of the development and management of the Earth as the horne of life.

Each chapter in this book deals with a single mathematical topic, which ideally should form the basis of a single lecture. The chapter has been designed as a mixture of the following ingredients: -(i) Illustrative examples and notes for the student's pre-lecture reading. (ii) Class discussion exercises for study in a lecture or seminar. (iii) Graded problems for assignment work. Contents 1 Sets, functions page 11 2 Limits and continuity 17 3 The exponential and related functions 25 4 Inverse functions 30 5 Differentiation 35 6 Differentiation of implicit functions 44 7 Maxima and minima 50 8 Curve sketching 54 9 Expansion in series 61 10 Newton's method 67 11 Area and integration 72 12 Standard integrals 80 13 Applications of the fundamental theorem 87 14 Substitution in integrals 94 15 Use of partial fractions 100 16 Integration by parts 106 Answers to problems 110 Index 116 1 Sets, Functions A set is a collection of distinct objects. The objects be­ longing to a set are the elements (or members) of the set. Although the definition of a set given here refers to objects, we shall in fact take objects to be numbers throughout this book, i.e. we are concerned with sets of numbers. Illustrative Example 1: Set Notation We give straight away some examples of sets in set notation and explain the meaning in each case.

The last thorough revision of Rutley's Elements of Mineralogy appeared as the 23rd Edition in 1936. In subsequent editions, an effort to keep abreast with the great progress in the science was made by small (and often awkward) modifications and, especially, by the addition of an independent chapter on the atomic structure of minerals. For this present edition, the complete re-setting of the book has made possible not only the integration of the added chapter on atomic structure into its proper place in the accounts of the chemical and physical properties of minerals, but also extensive rewriting and rearrangement of the material in the first part of the book. To this part, also, has been added a short chapter on the classification of minerals. In the second part, the Descrip­ tion of Minerals, numerous, if not so extensive, modifications and modernisations have been introduced. A couple of dozen new figures have been added, mostly in the early part of the book. More specifically, the major changes in this new edition are the following. The electronic structure of atoms supplies the guide­ lines for the whole account of mineral-chemistry; additional items concern the electrochemical series, of interest in the occurrence and metallurgical treatment of ores, and chemical analysis. On the physical side, the dependence of physical properties of minerals on their atomic structure is emphasized and, in addition, a brief account of radioactivity and isotopic age-determination is given.

This standard book on minerals, first published in 1882, has been completely revised and updated for the first time in 20 years. Silicate minerals are now described in a separate chapter, using crystal-chemical sub-divisions. Non-silicates are treated under the Dana system of classification. The existing classification, based on principal economic elements, has been retained and modernized to assist both the geochemical analyst and the economic geologist needing to know the various minerals associated with a particular element. Each element's world production totals and uses are included. Other revisions to the text have also been made. For over a century this book has served as an important compendium of key information about minerals and as a widely adopted teaching text. Colin Gribble was joint author of "A Practical Introduction to Optical Mineralogy" (with Allan Hall) and "Geology for Civil Engineers" (with Adam McLean). He is also active as a consultant geologist and a researcher in the engineering/geochemical field.

This book is primarily intended to assist candidates studying geology for the Ordinary Level of G.c.E., and examinations of comparable standard, but it should also be found useful by the" reader requiring a rapid conspectus of the geological history of Britain, and as forming a basis for more advanced work. The scope of the subject matter necessitated a narrow and slippery path be­ tween over-simplification and excessive detail, but the balance adopted is based upon the experience of many years of teaching at all levels, and of examining for the London G.C.E. Board. The maps, combining outcrop dis­ tribution with palaeogeography, presented some difficulty, especially for periods of continuously changing geography, such as the Cretaceous. It was necessary in these cases to make an arbitrary choice of one small part of the period, the geography of which could be illustrated. Candidates are advised not to spend time learning every detail of the outcrop patterns, but to con­ centrate upon the main areas of outcrop. I am indebted to Mrs. Jean Fyffe for the cartographic work.

This book should be of interest to students of general geology and metamorphism.

This book is an attempt to put into practice these precepts of Popper and Koestler as far as they can be applied to the Earth sciences at an elementary level. It is felt that the time is ripe for such a presentation, for the revolution that has taken place over the past 20 years within the Earth sciences has made more people directly aware of the way science works and of the necessity of knowing its history to achieve a full understanding of the problems involved. Emerging from the revolution has been the immensely unifying and extremely fruitful concept of plate tectonics, and developments leading to its establishment form the core of the book (Chs 4, 5 & 6). However, to see plate tectonics in context, it is necessary to look at what happened before, and this is done in the first three chapters. Chapter 1 is concerned with the development of ideas about the shape, size and mass of the Earth, which led to broad concepts about the Earth's structure and finally to a model of a cooling, contracting Earth, capable of explaining geological history and the major topographic features of the Earth. Chapter 2 goes on to show how even though the acceptance of this idea gradually broke down in the first half of the 20th century, possible alternatives, which are now at the core of plate tectonics, were also rejected.

'What are we going to do with a parcel of old stones?' wrote the director of an African museum a century and a half ago, when one of my ancestors presented him with a splendid collection of fossils of mammal-like reptiles. Old stones, however intriguing, are difficult to interpret, dusty, and do not fit well in the neatly ordered contents of a house of learning. Archaean geology, which is the study of the Earth's history in the period from after 9 the end of planetary accretion (4.5-4.4 x 10 years ago) up to the beginning 9 of the Proterozoic (2.5 x 10 years ago) is much the same - a parcel of old stones seemingly impossible to understand. Yet these stones contain the history of our origins: they can tell us a story that is interesting not just to the geologist (for whom this book is primarily written) but instead addresses the human condition in general.

This book is about metamorphic rocks: the processes involved in their formation and the reasons why they occur at particular places on the continents. It has been written to serve as an elementary text on the subjects of metamorphism and mountain building for non-specialist stu­ dents of geology. It will be equally useful where geology is either the main or subsidiary subject and could be used by students intending to advance further in geology (the list of advanced texts in the further reading section would be more appropriate to such students). My inten­ tion in writing this book has been to try to dispel the notion that metamorphism comprises the 'haunted wing' of geology. Admittedly, there are rather a large number of technical terms in the book, but I hope that after working through it you will not find metamorphism an unduly difficult or obscure aspect of geology. Throughout, I have emphasised the strong links between mountain building, plate tectonics and metamorphic processes. The book introduces metamorphic rocks by considering their textures and field relations, then moves on to deal with the factors controlling metamorphism. Case studies of areas of metamorphic rocks are then presented in the context of modern theories of the Earth's activity, and the place of metamorphic rocks in the formation of ancient and young mountain belts is analysed. New technical terms and concepts are explained in context as they are introduced, important terms being emphasised in bold print.

This book is for senior undergraduate or postgraduate students who want an insight into some modern approaches to metamorphic petrology. Its aims are to explain, in reasonably simple, informal terms, the processes underlying (i) metamorphic reactions and (ii) the production of micro­ structures in metamorphic rocks, these currently being the things that interest me most, geologically. The first aim requires discussion of equilibrium factors, reaction kinetics and reaction mechanisms, empha­ sising both the complexity of realistic reactions and the need to combine the chemical and microstructural approaches to them. The second aim requires discussion of deformation, recovery, recrystallisation and grain growth processes, with emphasis on experiments on silicate minerals. The book concludes with a general attempt to relate chemical and physical processes in metamorphism, although it will be clear from reading earlier chapters (especially Chapter 4) that the two aspects can rarely be separated completely in detailed metamorphic studies. Petrological and experimental investigations of metamorphic reactions and microstructural development are advancing so rapidly these days that students are faced with an ever-increasing volume of information and a relatively rapid obsolescence of data. So, in this book I do not try to be comprehensive, or to present much so-called 'factual' information. Instead, I deal more with basic principles, in the hope that these will guide the student in his or her encounters with the details of specific metamorphic problems.

This work covers the subject of the petrology of the metamorphic rocks, including such subjects as rock and mineral compositions and their relationship, metamorphism associated with igneous intrusions, dynamic metamorphism, extra-terrestrial metamorphism and metamorphism in collision zones. The book uses examples of the field relationships of metamorphic rocks and their appearance in thin section; discusses the thermodynamic and analytic methods concerned; describes methods for determining the temperatures and deformations of the rocks and demonstrates how thermodynamic modelling enables them to be interpreted as the outcome of plate tectonics.

This work covers the subject of the petrology of the metamorphic rocks, including such subjects as rock and mineral compositions and their relationship, metamorphism associated with igneous intrusions, dynamic metamorphism, extra-terrestrial metamorphism and metamorphism in collision zones. The book uses examples of the field relationships of metamorphic rocks and their appearance in thin section; discusses the thermodynamic and analytic methods concerned; describes methods for determining the temperatures and deformations of the rocks and demonstrates how thermodynamic modelling enables them to be interpreted as the outcome of plate tectonics.

The challenge of finding new orebodies to satisfy the ever-increasing demands for mineral commodities has to be met - in addition to improved techniques of exploration, mining, extraction, and management, by a better understanding of the geologic setting and genesis of the various classes of mineral deposits. A substantial part of this work is devoted to a discussion, with appropriate examples, of principles that govern the formation of mineral deposits and the various kinds of field or laboratory data that can be used to interpret their genesis. Furthermore, the book includes reviews on the characteristics of selected classes of deposits, their relationship with the crustal evolution in space and time, and on the application of available data to the formulation of viable genetic models that provide the basis for exploration strategies.

In this text, attention is focused mainly on those literature is accessible, however, it is to be expected countries in western Africa lying south of the Sahara, that teachers and lecturers will know of it and will be that is, between about SON and 15°N, and westward able to acquaint their students with it, where neces­ of about 15°E. Parts of the region as far north as sary. about 200N are considered from time to time, for A glossary of terms is provided at the end of the purposes of correlation and cQntinuity. The map on volume, and there is a summary at the beginning of p. xiii indicates the approximate extent of the cover­ each chapter. age. This book is dedicated to the many colleagues and The principal aim is to provide a broad view of students with whom we have worked in West Africa West African geology as a whole, for undergraduates and who have stimulated and encouraged our teach­ who are studying for honours degrees in geology and ing and research in various ways. We hope also that it may help the work of international organizations who already have an understanding of basic geologi­ cal principles. It is increasingly important that such as AGID, CIFEG and UNESCO to encourage the growing trend towards geological co-operation geologists working in this region should see it as made up of geological 'provinces' which transcend and correlation between different countries in West national boundaries. Africa.