IN his nine hours' flight of 1200 miles over Graham Land on Dec. 19, Sir Hubert Wilkins made discoveries of great value. This was the first flight ever made in Antarctic regions and shows the value of air transport for the explorer in a part of the world where pioneer work has yet to be done. In a few hours, travelling at a speed of 120 miles an hour, Sir Hubert reached farther south than any ship has ever been able to penetrate on the eastern side of Graham Land, where Captain Larsen in 1893 had managed to reach lat. 68° S. Previous knowledge of the coasts of Graham Land ended, with any detail, on the eastern side in about lat. 66° S., and on the western side in about lat. 69° S. Beyond these latitudes, and even to the north of them in many places, knowledge was very sketchy.