Picturesquely located at the top of an imposing rock jutting out into Lake Superior is Split Rock Lighthouse. The station derives its name from the appearance of the rock as it is approached from the open lake. The octagonal brick tower 54 feet in height was built in 1910. Because of the height of the rock, the light was 168 feet above the level of the lake and could be seen for 22 miles. An incandescent oil-vapor lamp was used inside the third-order lens, producing a light of 450,000 candlepower. The station was also equipped with a compressed air operated diaphone fog signal, sounding a blast every 20 seconds in time of fog. Split Rock Lighthouse is one of the most frequently visited lighthouses in the United States. The light was discontinued in 1969. (1) (2) [Illustration] _NEW HAMPSHIRE_ ISLE OF SHOALS LIGHTHOUSE Capt. John Smith discovered the rugged, storm-swept Isles of Shoals off the coasts of Maine and New Hampshire in 1614. The first settlers were Robert, John, and Richard Cutts who came across the seas from Wales to build their huts on the islands. Later Sir William Pepperell established the fishing industry there and laid the foundation for a fabulous fortune. The Pepperell Mills at Biddeford, Maine, stem from this beginning and Sir William was closely associated with Gen. George Washington and Gen. Knox during the Revolution. [Illustration] The largest of the island group was originally called Hog Island, but this was later changed to Appledore. This island contains about 4 acres and its greatest elevation is 75 feet above the sea. In 1641 the 40 families living on the island incorporated it into a town and here the first church in the Province of Maine was erected, under the direction of the Reverend John Brock. The town flourished through its fisheries and enjoyed an extensive trade with the Spaniards. In 1670, during trouble with the Indians, the inhabitants moved to Star Island, for greater protection. Smutty Nose, earlier known as Haley’s Island, lies close to Appledore and at low tide Cedar and Malaga Islands are connected with the latter by a breakwater, built, it is said, by Captain Haley with the proceeds from four bars of silver found among the rocks. He also erected a salt works, built a ropewalk and set up a windmill. Each night he kept a lamp lighted from the sunset to sunrise to aid the mariners into the harbor formed by the breakwater. Notwithstanding this aid to navigation, the ship _Sagunte_ from Cadiz was wrecked on the southeast point of the island on January 14, 1813, and stones marking the graves of those lost can still be seen.