Advances in Comparative and Environmental Physiology helps biologists, physiologists, and biochemists keep track of the extensive literature in the field. Providing comprehensive, integrated reviews and sound, critical, and provocative summaries, this series is a must for all active researchers in environmental and comparative physiology.Advances in Comparative and Environmental Physiology helps biologists, physiologists, and biochemists keep track of the extensive literature in the field. Providing comprehensive, integrated reviews and sound, critical, and provocative summaries, this series is a must for all active researchers in environmental and comparative physiology.1 Neuronal Control of Osmoregulatory Responses in Gastropods.- 1 Introduction.- 2 Invertebrate Neurons and Osmotic Stress.- 3 Neuromodulation of Osmoregulatory Responses.- References.- 2 Chemosensory Systems in Lower Organisms: Correlations with Internal Receptor Systems for Neurotransmitters and Hormones.- 1 Introduction.- 2 Chemosensory Systems of Slime Molds, Protozoa, and Yeast.- 3 Marine Larvae: Factors Affecting Settlement and Metamorphosis.- 4 Crustaceans: Chemosensory Systems for Adenine Nucleotides.- 5 Conclusions.- References.- 3 Metallothionein and Metallothionein-Like Proteins: Physiological Importance.- 1 Introduction.- 2 History.- 3 Chemical and Biochemical Characteristics of Metallothioneins.- 4 Metal-Binding Affinities of Mammalian MTs.- 5 Aspects of Metallothionein Function.- 6 Concluding Remarks.- References.- 4 Nuclear Magnetic Resonance Spectroscopic Techniques for the Study of Cellular Function.- 1 Noninvasive Approaches to the Study of Cellular Metabolism.- 2 Principles of Nuclear Magnetic Resonance.- 3 In Vivo Measurement of Proton and Inorganic Ion Levels.- 4 In Vivo Measurement of Intracellular Metabolite Levels.- 5 Measurement of Kinetic Processes by NMR Spectroscopy.- 6 Special Applications of NMR lS(