A history of of the industrial ecosystem that focuses on the biological sewage treatment plant as an early example. Biological sewage treatment, like electricity, power generation, telephones, and mass transit, has been a key technology and a major part of the urban infrastructure since the late nineteenth century. But sewage treatment plants are not only a ubiquitous component of the modern city, they are also ecosystems--a hybrid variety that incorporates elements of both nature and industry and embodies multiple contradictions. In Hybrid Nature, Daniel Schneider offers an environmental history of the biological sewage treatment plant in the United States and England, viewing it as an early and influential example of an industrial ecosystem. The sewage treatment plant relies on microorganisms and other plants and animals but differs from a natural ecosystem in the extent of human intervention in its creation and management. Schneider explores the relationship between society and nature in the industrial ecosystem and the contradictions that define it: the naturalization of industry versus the industrialization of nature; the public interest versus private (patented) technology; engineers versus bacterial and human labor; and purification versus profits in the marketing of sewage fertilizer. Schneider also describes biotechnology's direct connections to the history of sewage treatment, and how genetic engineering is extending the reaches of the industrial ecosystem to such "natural" ecosystems as oceans, rivers, and forests. In a conclusion that shows how industrial ecosystems continue to evolve, Schneider discusses John Todd's Living Machine, a natural purification method of sewage treatment, as the embodiment of the contradictions of the industrial ecosystem.

A history of of the industrial ecosystem that focuses on the biological sewage treatment plant as an early example. Biological sewage treatment, like electricity, power generation, telephones, and mass transit, has been a key technology and a major part of the urban infrastructure since the late nineteenth century. But sewage treatment plants are not only a ubiquitous component of the modern city, they are also ecosystems -- a hybrid variety that incorporates elements of both nature and industry and embodies multiple contradictions. In Hybrid Nature, Daniel Schneider offers an environmental history of the biological sewage treatment plant in the United States and England, viewing it as an early and influential example of an industrial ecosystem. The sewage treatment plant relies on microorganisms and other plants and animals but differs from a natural ecosystem in the extent of human intervention in its creation and management. Schneider explores the relationship between society and nature in the industrial ecosystem and the contradictions that define it: the naturalization of industry versus the industrialization of nature; the public interest versus private (patented) technology; engineers versus bacterial and human labor; and purification versus profits in the marketing of sewage fertilizer. Schneider also describes biotechnology's direct connections to the history of sewage treatment, and how genetic engineering is extending the reaches of the industrial ecosystem to such "natural" ecosystems as oceans, rivers, and forests. In a conclusion that shows how industrial ecosystems continue to evolve, Schneider discusses John Todd's Living Machine, a natural purification method of sewage treatment, as the embodiment of the contradictions of the industrial ecosystem.

The relationship between geography and philosophy is still largely in need of being explored. Geographers and philosophers share the responsibility for that. On the one hand, geographers have considered as a dangerous deviation any attempt to elaborate an image of the Earth which was not a mere replica of a cartographic representation. On the other hand, philosophers have generally been uninterested in a discipline offering little chance for critical reflection. In light of these considerations, the purpose of this book is to identify some fundamental philosophical issues involved in the reflection of geography by adopting a perspective which looks at the discipline with a specific focus on its fundamental concepts and distinctions.

This book provides a detailed exposition of one of the most practical and popular methods of proving theorems in logic, called Natural Deduction. It is presented both historically and systematically. Also some combinations with other known proof methods are explored. The initial part of the book deals with Classical Logic, whereas the rest is concerned with systems for several forms of Modal Logics, one of the most important branches of modern logic, which has wide applicability.

Hybrid Geographies reconsiders the relationship between human and non-human, the social and the material, showing how they are intimately and variously linked. General arguments, informed by work in critical geography, feminist theory, environmental ethics, and science studies are illustrated throughout with detailed case-study material.

Hybridness is a topical, if somewhat ambiguous, concept in a research environment where there is increasing acceptance of multiple co-existent research paradigms: artificial intelligence with its emphasis on reasoning with abstract symbols; the connectionist approach, with its exploration of the synergies of many interconnected simple structures; and Nouvelle Robotics, which places a focus on the interplay between systems generating skill or behaviour in complete agents. There is scope for considerable argument about principles, research programmes, the Nature of Things, as well as room for compromise and synthesis. This collection of papers, presented at AISB '95 (the 10th biennial conference on AI and the Simulation of Behaviour) reveals both argument and synthesis.