Diving Bell Lowered To Sunken Submarine -- Members of the salvage vessel Falcon are shown lowering a huge diving bell over the side of the rescue ship today to the sunken submarine Squalus, which went down yesterday near the isles of Shoals off the new Hampshire coast with 59 officers and crew. The diving bell was to be attached to the hatch of the stricken undersea ship by divers to permit a limited number of the entombed men to escape. The operation was to be repeated that seven men were broug