DUNBAR, N.B.—On the 27th February, at about 8 A.M., a small vessel was seen riding at anchor in comparatively shallow water, with a signal of distress flying, about five miles E. of Dunbar. The Lifeboat Wallace put off to her assistance, and found that she was the lighter Sophia, of Hull, bound from Newcastle to Dunbar with coal. She was being brought up by a tug on the previous day, when the steamer's shaft broke and the vessel had to be cast adrift. She proceeded under her own sail, but the wind changingduring the night and becoming stronger, and the sea being heavy, she was in great danger of being lost. Her crew of three men were taken into the Life-boat and safely landed at Skateraw Harbour..