Partial table of contents:; INTRODUCTION TO PH.; Principles and Practical Aspects of pH Buffering (M. Chesler).; Cerebral Energy Metabolism and pH (P. Mellergard & B. Siesjo).; METHODS OF STUDYING PH.; Absorbance pH Indicators (J. LaManna & K. Lauro).; Fluorescence Indicators (M. Bevensee & W. Boron).; CELLULAR MECHANISMS OF PH REGULATION.; pH Regulation in Invertebrate Glia (J. Deitmer).; pH Regulation in Mammalian Glia (C. Rose & B. Ransom).; ACTIVITY--INDUCED CHANGES IN PH.; Activity--Evoked Changes in Intracellular pH (K. Ballanyi & K. Kaila).; pH Changes Associated with Glutamate Uptake (A. Amato, et al.).; PH MODULATION OF NEURAL ACTIVITY.; Proton--Gated Ion Channels in Neurons (S. Bevan).; Modulation of Vertebrate Retinal Function by pH (S. Barnes).; PH CONTROL OF RESPIRATION.; Central Chemoreceptors, pH, and Respiratory Control (E. Nattie).; PH AND PATHOPHYSIOLOGY OF THE NERVOUS SYSTEM.; Acid--Base Metabolism in Ischemia (K. Katsura & B. Siesjo).; Brain Edema and pH (H. Kimelberg & P. Feustel).; Index.