Topics in Number 38 include: -Solid State Electrochemistry encompassing modern equilibria concepts, thermodymanics and kinetics of charge carriers in solids. -Electron transfer processes, with special sections devoted to hydration of the proton and its heterogeneous transfer. -Electrosorption at electrodes and its relevance to electrocatalysis and electrodeposition of metals. -The behavior of Pt and other alloy electrocatalyst crystallites used as the electrode materials for phosphoric acid electrolyte fuel-cells. -Applications of reflexology and electron microscopy to the materials science aspect of metal electrodes. -Electroplating of metal matrix composites by codeposition of suspended particles, a process that has improved physical and electrochemical properties. From reviews of previous volumes: "This long-standing series continues its tradition of offering high quality reviews of established and emerging subject areas, together with the less common aspects of electrochemical science … Deserves a place in electrochemistry libraries and should prove useful to electrochemists and related workers" -Chemistry and Industry "Continues the valuable service that has been rendered by the Modern Aspects series." -Journal of Electroanalytical Chemistry "Will definitely be of much use to researchers in the field of electrochemistry … The editors of this well-produced volume deserve all appreciation for maintaining the excellent standard of the series." -Bulletin of Electrochemistry "Extremely well-referenced and very readable … Maintains the overall high standards of the series." -Journal of the American Chemical Society.