Dr Davy communicates the description of certain streams of seawater which appear to be constantly flowing into the interior of the earth, by four openings, near the town of Argostoli, in Cephalonia. These are now applied as sources of mechanical power. Dr Davy views this curious fact as probably related to the very remarkable local earthquakes which affect the Ionian Islands, and which appear to be disconnected with any volcanic appearances, or even the occurrence of trap-rocks. Dr Davy conceives that these phenomena may be attributable to the absorption of this quantity of sea-water constantly received into the land by the marly beds which occur in Cephalonia.