mental management. Each volume is a thorough treatment of a specific topic of importance for proper management practices. A fundamental ob­ jective of these books is to help the reader discern and implement man's stewardship of our environment and the world's renewable resources. For we must strive to understand the relationship between man and nature, act to bring harmony to it, and nurture an environment that is both stable and productive. These objectives have often eluded us because the pursuit of other in­ dividual and societal goals has diverted us from a course of living in balance with the environment. At times, therefore, the environmental manager may have to exert restrictive control, which is usually best applied to man, not nature. Attempts to alter or harness nature have often failed or backfired, as exemplified by the results of imprudent use of herbicides, fertilizers, water, and other agents. Each book in this series will shed light on the fundamental and applied aspects of environmental management. It is hoped that each will help solve a practical and serious environmental problem. Robert S. DeSanto East Lyme, Connecticut Acknowledgments Compilation of the materials reviewed in this inventory was facilitated greatly by several staff members of the Disaster Research Center, University of Delaware (formerly at The Ohio State University) and the Natural Haz­ ards Research and Applications Information Center, University of Colorado.

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