island, which is about six miles long and two wide. Then, crossing a broad channel leading to the southward, we landed on the next island of the same group, which appeared of great extent. From the top of its lofty trap cliffs I discovered a narrow part with water on the northern side. It proved a high rocky isthmus, a quarter of a mile broad, across which we carried the boats and cargoes. After rowing about half a league, we had to break our way through a stream of ice; and, a few furlongs farther, came again to the edge of the main body of the ice, where we encamped at 9 P. M., having by our toilsome and circuitous route advanced only eight miles of direct distance.
Our detention the following day was amply compensated by my fortunate discovery of several pieces of pure copper ore. They were lying amongst the debris at the foot of a crumbling rock, which had evidently fallen from the trap hills above. The cliffs were everywhere stained with verdigris, indicating the presence of the metal, which undoubtedly abounds in these islands. Coloured quartz crystals and vesicles were frequent, and I preserved specimens of the leading rocks, both here and all along the coast. Barry Islands contain several fine deep harbours, completely land-locked and sheltered from every
