Photophysiology, Volume II: Action of Light on Animals and Microorganisms; Photobiochemical Mechanisms; Bioluminescence presents the effects of light upon animals and microorganisms. This book discusses the fundamental photobiochemical mechanisms underlying some of the effects of light. Organized into 10 chapters, this volume begins with an overview of the periodic functions of animals that can be manipulated by photoperiod. This text then examines the biosynthetic relationships between proteins and nucleic acids, which have been explored in part by observing the inactivating and reactivating effects of UV and visible light. Other chapters consider the physical factors that limit the performance of the eye to exact information about the environment from the light that reaches an animal. This book discusses as well the various anatomical and physiological features of the eye in relation to its limits. The final chapter deals with the occurrence of bioluminescence in nature. This book is a valuable resource for biologists, physiologists, and scientists.