not lie in the conceptual distinctions but in the perceived functions of metaphors and whether in the concrete case they are judged positive or negative. The ongoing debates reflect these concerns quite clearly~ namely that metaphors are judged on the basis of supposed dangers they pose and opportunities they offer. These are the criteria of evaluation that are obviously dependent on the context in which the transfer of meaning occurs. Our fundamental concern is indeed the transfer itself~ its prospects and its limits. Looking at possible functions of metaphors is one approach to under standing and elucidating sentiments about them. The papers in this volume illustrate, by quite different examples, three basic functions of metaphors: illustrative, heuristic~ and constitutive. These functions rep resent different degrees of transfer of meaning. Metaphors are illustrative when they are used primarily as a literary device, to increase the power of conviction of an argument, for example. Although the difference between the illustrative and the heuristic function of metaphors is not great, it does exist: metaphors are used for heuristic purposes whenever "differences" of meaning are employed to open new perspectives and to gain new insights. In the case of "constitutive" metaphors they function to actually replace previous meanings by new ones. Sabine Maasen in her paper introduces the distinction between transfer and transforma tion.

Both classical and contemporary social theorists have created a range of frameworks to formulate and develop concepts of social structure. Focusing on the work of the key theorists, Emile Durkheim, Karl Marx, Max Weber, Talcott Parsons and Louis Althusser, Society and its Metaphors maps the linguistic basis of different theories of social structure.

An introduction to the difference that critical realism can make to contemporary social sciences, covering cultural studies, feminism, globalization, heterodox economics, education policy, the self and the 'underclass' debate.

Leading paleontologist J. David Archibald explores the rich history of visual metaphors for biological order from ancient times to the present and their influence on humans' perception of their place in nature, offering uncommon insight into how we went from standing on the top rung of the biological ladder to embodying just one tiny twig on the tree of life. He begins with the ancient but still misguided use of ladders to show biological order, moving then to the use of trees to represent seasonal life cycles and genealogies by the Romans. The early Christian Church then appropriated trees to represent biblical genealogies. The late eighteenth century saw the tree reclaimed to visualize relationships in the natural world, sometimes with a creationist view, but in other instances suggesting evolution. Charles Darwin's On the Origin of Species (1859) exorcised the exclusively creationist view of the "tree of life," and his ideas sparked an explosion of trees, mostly by younger acolytes in Europe. Although Darwin's influence waned in the early twentieth century, by midcentury his ideas held sway once again in time for another and even greater explosion of tree building, generated by the development of new theories on how to assemble trees, the birth of powerful computing, and the emergence of molecular technology. Throughout Archibald's far-reaching study, and with the use of many figures, the evolution of "tree of life" iconography becomes entwined with our changing perception of the world and ourselves.

This book is the first to develop new methodological approaches to understand and analyze the use of metaphor in political science and international relations.

This book opens up a new route to the study of knowledge dynamics and the sociology of knowledge. The focus is on the role of metaphors as powerful catalysts, and the book dissects their role in the construction of theories of knowledge. It is of vital interest to social and cognitive scientists alike.

Refiguring Life begins with the history of genetics and embryology, showing how discipline-based metaphors have directed scientists' search for evidence. Keller continues with an exploration of the border traffic between biology and physics, focusing on the question of life and the law of increasing entropy. In a final section she traces the impact of new metaphors, born of the computer revolution, on the course of biological research. Keller shows how these metaphors began as objects of contestation between competing visions of the life sciences, how they came to be recast and appropriated by already established research agendas, and how in the process they ultimately came to subvert those same agendas. Refiguring Life explains how the metaphors and machinery of research are not merely the products of scientific discovery but actually work together to map out the territory along which new metaphors and machines can be constructed. Through their dynamic interaction, Keller points out, they define the realm of the possible in science. Drawing on a remarkable spectrum of theoretical work ranging from Schroedinger to French psychoanalyst Jacques Lacan, Refiguring Life fuses issues already prominent in the humanities and social sciences with those in the physical and natural sciences, transgressing disciplinary boundaries to offer a broad view of the natural sciences as a whole. Moving gracefully from genetics to embryology, from physics to biology, from cyberscience to molecular biology, Evelyn Fox Keller demonstrates that scientific inquiry cannot pretend to stand apart from the issues and concerns of the larger society in which it exists.