The Editorial Board and the Publishers of the Handbook of Experimental Pharmacology wish to express their profound grief at the untimely death of Professor Peter Baker. Aware of his international recognition as an expert on the ubiquitous role of calcium in physiological processes and their pharma- cological control, the Board was gratified when Professor Baker accepted its invitation to edit a new Handbook volume on "Calcium in Drug Actions." He went about this task with his usual energy and effectiveness so that, in the few months before his unexpected death, Professor Baker had mustered...