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Volume 72 contains four outstanding reviews detailing advances in the plant and environmental soil sciences. Chapter 1 deals with a timely and significant topic in North America and indeed in the world. This review provides background information, data sources and analyses, and implications for research and policy. Chapter 2 is a treatise on cutting-edge developments in bioremediation of petroleum-contaminated soils. Chapter 3 deals with the genetics of flowering time in the chickpea and its effect on productivity in semi-arid environments. Chapter 4 covers environment-sensitive genetic male sterility (EGMS) in crops.Volume 58 contains seven reviews covering key contemporary topics on crop and soil sciences. Three of these reviews focus upon soils; in particular, biodegradation of soil pollutants, modelling of solute transport in soils, and the analysis of soil salinity. The other four papers deal especially with crops: herbicide resistance, silicon and rice production, the use of tissue cultures for crop improvement, and crop water relations. With this latest volume, Advances in Agronomy continues to be recognized as a leading reference and as a first-rate source of the latest research in agronomy, crop science, and soil science.Advances in the Study of Behavior continues to serve scientists across a wide spectrum of disciplines. Focusing on new theories and research developments with respect to behavioral ecology, evolutionary biology, and comparative psychology, these volumes serve to foster cooperation and communication in these diverse fields. Volume 23 focuses on research on the lower vertebrates with respect to the functional significance of different breeding strategies, the level at which natural selection acts, methods of teasing apart the genetic control of behavior, the assumptions underlying models of territoriality, and signalling systems and the sensory mechanisms on which they depend.