4. Dr. Purchas exhibited a number of trenails taken from the schooner “Kenilworth,” now being repaired at Auckland. The greater number of the trenails in the vessel were eaten in a spiral manner on the outside by the larva of some beetle, so that many were quite loose in the planking. None of the Auckland ship-builders were acquainted with a similar case. The vessel was twelve years old, and for the last nine had been trading in the Malay Archipelago and South Sea Islands.