"We have to do what we can with them," the doctor said, standing by the desk and turning over some papers. "We just about live in them, you know." "This, of course," he explained, "is only a short trip, comparatively. Sometimes they are rather bad." "Anything can happen, you know. Now, there was a man we had last night--we knew it was a serious case, yes. An amputation--only just got him off the train in time. There wasn't anything to be done. He died an hour after." The doctor sat in the corner of the couch, facing me, looking out of the window where the gray smoke from the engine whirled against it. "I've never had a man die on board," he said slowly. "But there are times----" he hesitated, waited a little, then shook his head. "Yes, there are bad times," he murmured. He leaned back, took up the book beside him, closed it and placed it on the desk. His khaki tunic and braided sleeves, with their three small stars, showed very dark against the gentian cushions. "It's the responsibility," he said, the even, meditative tone of his voice carrying quite clearly in the curious stillness, "and the uncertainty--the fact that you don't know. Anything can happen.... "There was the night they stopped us and told us about the Zeppelins.... That was the second time my train had been bombed--there was another night, but that wasn't very bad. But this night the train was filled up, all cot cases, two amputations, possibility of hemorrhage. And what are you going to do? You have to get them to the hospitals. So we went ahead.... "They were dropping them pretty thick that night--oh, yes, we saw it all right. Quite a thing to see, that!" Then he smiled, that friendly Scotch doctor, smiled and fumbled with the black cord of his eyeglasses which had caught on the button of his shoulder strap. "Pretty show it would have been," he announced, with a certain gentle causticity, "if they had hit us." Then he stood up abruptly, waited for a moment to look out the window where the broad fields were wheeling past in great squares of color, and said: "There are one or two serious cases to-night. We'll go back now." And he walked down and opened the door beside the closed desk. I saw before me a little narrow vestibule with mahogany walls. I stepped into this vestibule, one short step carried me across the threshold; but in this moment I entered a wholly new world. It was, in absolute truth, a world complete, self-sustained; there was not even the illusion of its having any concern whatever with what was not contained within itself. It was war.