Up to this time there had been no panic; but about one hour before the ship plunged to the bottom there were three separate explosions of bulkheads as the vessel filled. These were at intervals of about fifteen minutes. From that time there was a different scene. The rush for the remaining boats became a stampede. The stokers rushed up from below and tried to beat a path through the steerage men and women and through the sailors and officers, to get into the boats. They had their iron bars and shovels, and they struck down all who stood in their way. The first to come up from the depths of the ship was an engineer. From what he is reported to have said it is probable that the steam fittings were broken and many were scalded to death when the Titanic lifted. He said he had to dash through a narrow place beside a broken pipe and his back was frightfully scalded. Right at his heels came the stokers. The officers had pistols, but they could not use them at first for fear of killing the women and children. The sailors fought with their fists and many of them took the stoke bars and shovels from the stokers and used them to beat back the others. Many of the coal-passers and stokers who had been driven back from the boats went to the rail, and whenever a boat was filled and lowered several of them jumped overboard and swam toward it trying to climb aboard. Several of the survivors said that men who swam to the sides of their boats were pulled in or climbed in. Dozens of the cabin passengers were witnesses of some of the frightful scenes on the steerage deck. The steerage survivors said that ten women from the upper decks were the only cool passengers in the life-boat, and they tried to quiet the steerage women, who were nearly all crazed with fear and grief. OTHER HEROES Among the chivalrous young heroes of the Titanic disaster were Washington A. Roebling, 2d, and Howard Case, London representative of the Vacuum Oil Company. Both were urged repeatedly to take places in life-boats, but scorned the opportunity, while working against time to save the women aboard the ill-fated ship. They went to their death, it is said by survivors, with smiles on their faces. Both of these young men aided in the saving of Mrs. William T. Graham, wife of the president of the American Can Company, and Mrs. Graham's nineteen-year-old daughter, Margaret. Afterwards relating some of her experiences Mrs. Graham said: "There was a rap at the door. It was a passenger whom we had met shortly after the ship left Liverpool, and his name was Roebling--Washington A. Roebling, 2d. He was a gentleman and a brave man. He warned us of the danger and told us that it would be best to be prepared for an emergency. We heeded his warning, and I looked out of my window and saw a great big iceberg facing us. Immediately I knew what had happened and we lost no time after that to get out into the saloon. "In one of the gangways I met an officer of the ship.