SHERINGHAM.—A rough sea sprung up on the evening of the 16th August, and about fifteen or twenty fishing-boats were placed in danger. At 5,15 the Life-boat William Bennett was launched, eight minutes sufficing to get her afloat, took the crews out of their boats, and landed them at about 8 o'clock. The boats were anchored outside the breakers, and were brought ashore when the tide ebbed late at night..