From that terrible plunge only two persons escaped unharmed. One was Luke Matherson, the engine-driver, and the other was the baby. When the former felt his engine dropping from under him, he sprang from it, with desperate energy, far out into the muddy waters, that instantly closed over him. On coming to the surface, the instinct of self-preservation forced him to swim, but it was wildly and without an idea of direction or surroundings. For nearly a minute he swam with all his strength against the current, so that he was still near the wreck, when his senses were again quickened into action by a smothered cry, close at hand. At the same time a dark mass drifted towards him, and he seized hold of it. As the cry seemed to come from this, the man's struggles became directed by a definite purpose. Partially supporting himself by the wreckage, he attempted to guide it to the nearest bank; but so swift was the current that he was swept down stream more than a mile before he succeeded in accomplishing his purpose.