Channels and Pumps Early in Evolution -- The Possible Role of Aquaporin 0 in Lens Physiology -- Central Role of the Ca2+i Regulatory Site in Ionic and Metabolic Modulation of Na+/Ca2+ Exchanger in Dialyzed Squid Axons -- Calcium Dependence of Calcium Release Channels (Ryanodine Receptors) from Skeletal and Cardiac Muscle -- Modulation of Ryanodine Receptor Channels from Rat Brain Cortex in Lipiā¦