The chemistry of the five principal plant hormone groups is discussed in detail in this volume. Contributing authors review history and occurrence of each hormone group, methods of isolation and detection, biosynthesis and metabolism, and structural determination. Through these analyses, the authors clarify the role of endogenous plant growth regulators in the life cycle of higher plants. The text is supplemented with over 350 figures and structures of various plant hormones.

Embarking from a model of social capital hinging upon four social structures-work, family, social networks, and voluntary associations-Brian Jones empirically examines the widespread claims that American society is becoming less sociable, trusting, and cooperative.