LLANDDWYN, ANGLESEY.—On the 25th June the Life-boat John Gray Bell was launched to the assistance of the schooner Hannah and Joseph, of Liverpool, ashore on Carnarvon bar, which vessel, after some hours' hard work on the part of the Lifeboat's crew, was got afloat and carried into port. A fresh breeze was blowing fromW.S.W. at the time. The vessel had a crew of 3 men..