For some time Winterton Light, to the north of Yarmouth, served to direct his course; when the tide carried him out of sight of it, a star served to guide him.  At length this was obscured by the clouds, from which flashes of lightning, with crackling peals of thunder, burst forth.  Still he swam on, until again the moon shone forth.  Having cut off his heavy boots, he swam more easily.  And now Lowestoft Light came in sight, and he saw the checkered buoy of Saint Nicholas Gat, opposite his own door, but still four miles away from land.  He had been five hours in the water.  Here was something to hold on by; but he reflected that his limbs might become numbed from exposure to the night air, and that it would be more prudent to swim on.  So abandoning the buoy, he steered for the land.  Not long afterwards he heard a whizzing sound overhead.  It was a huge gull which had made a dash at him, mistaking him for a corpse; a number followed, but by shouting and splashing he drove them off.  He was now approaching Corton Sands, over which the sea was breaking, and he much doubted whether he could live through it; but in a short time he was driven over them into smooth water, and the wind and swell coming from the eastward, he regained his strength.  Some distance to the southward, he saw a brig at anchor.  He was in doubt whether he should make towards her or continue his course to the shore. There was a great deal of surf breaking on the beach, and he might not have strength to climb up out of its reach.  Also, if he swam to the brig, he might fail to make himself heard by the crew.  However, on reflection, he determined to make for the brig.  He got within two hundred yards, but nearer it was impossible to get.  He now sang out with all his might.  Happily, his voice was heard by the watch, a boat was lowered, and at half-past one, having swum seven and a half hours, he was on board the Betsey, at anchor in Corton Roads, nearly fifteen miles from the spot where the yawl was capsized.  On being lifted on deck he fainted; and it was not until long afterwards, by careful attention from the captain and crew, that he was brought round.  He suffered great pain in several parts of his body, and it was with difficulty that he swallowed some warm beer.  He was landed at Lowestoft, and five days afterwards was able to walk back to Yarmouth. We were shown the knife with which he was enabled to cut off his clothes and boots.  A piece of silver was fixed to it, on which were engraved the names of the crew of the yawl, and the words, "Brock, aided by this knife, was saved, after being seven and a half hours in the sea. 6th October, 1835."