170 THE CHOPS OF THE CHANNEL, AND HOW THEY ARE LIGHTED. a coloured one, and will light “The Brissons,” a dangerous reef of rocks on the north, and “ The Rundlestone,” a reef on_the southern side. This latter is at present marked only by a bell buoy, which, of course, gives no light, but as it moves with the waves the clappers strike the bell, which can be heard at a long distance. To ships going up the Bristol Channel the lighthouse at Godrevy flashes a white light every ten seconds, which is visible at a distance of fourteen miles, while a fixed red light at a lower elevation warns ships from the Stones rocks. To a ship bound up the English Channel the magnificent lighthouse recently erected on the “ Wolf Rock,” eight miles from land, will show alternate flashes of red and white every thirty seconds, and long before its friendly | ness Point (one fixed light), the South Forelan (two fixed lights), the three lightships on the Goodwin Sands (showing one fixed, one revolving, and three fixed lights respectively), the North| Foreland (one fixed light), and finally the lightship at the Nore, with its light revolving every thirty seconds, will lead the ship in safety to the estuary: of the Thames, whence a tug will soon tow her to the London Docks. The spaces between these} |larger lights are filled up by lighthouses which lead to harbours and mark the existence of piers and breakwaters. If a ship has to beat up the Channel, and consequently to stand across from shore to shore, the lights on the French coast are as well arranged as on our own, and will equally show the pilot where he is. are in paral- lel towers, 212 feet apart, and thus the Li- zard is dis- tinguished from the fixed light lightis paled We have the ship is reason to be within the proud of the radius of the triumphs two brilliant which our fixed lights engineers at the Li- have achiey- zard, which ed in build- are visible ing, under twenty - one most diffi- miles off. eult circum- | These lights stances, towers, whose strength defies the violence of the storm. To build a lighthouseis a different at Scilly, thing from which is a single one, fromthe two lights at the LIZARD LIGHTS, building an ordinary house on shore. Their Seven Stones, which are not parallel, but one | positions are necessarily much exposed: sometimes eighteen feet above the other, and from the others in our engraving, which are either “flash” or “coloured” lights. If a succession of northerly winds and rough weather should drive the home- ward bound ship nearer to the French coast than our own, the pilot would probably discover his whereabouts by seeing the “ Casquets,” offGuernsey, where, for the sake of distinction, three lights are shown. After that he would probably see in succession the Eddystone (one fixed light), the they stand on a bluff headland, like the Lizard, but not unfrequently on a rock in mid ocean, which can be approached only at rare intervals, when wind and tide allow, and always with difficulty, and where, when erected, they are exposed to the full fury of the storm. The triumphs of scientifie men, who have wrought constant improvements in the lights which are to shine over the waste of waters from the towers which our engineers have built, are if possible greater still. So lately as 1813 the light Start Point (two revolving lights), Portland (two | at the Lizard was only the light of a coal fire, such fixed lights), St. Catherine’s Point (one fixed light), the Nab lightship (two fixed lights), the Owers lightship (one fixed light), Beachy Head (one revolving light visible twenty-three miles), Dunge- | as was used by the Romans in the days of the Emperors : every year witnesses improvements in the arrangements for diffusing the light over the largest possible space, and for diversifying the