"He is my commanding officer. He told me that I must always remember that, and obey," whispered Rose to herself, as Donald, in his abstraction, began to snap forth his orders in a manner and tone which, for a moment, made her shrink and quiver. His words were often unintelligible to her, until Miss Merriman, silent-footed and efficient, translated them into action, as, before the wide eyes of the mountain child, there began to unfold the swift drama of modern surgical science at its pinnacle, amid that fantastic setting. Strange words, indeed, were those which now fell on her attentive ears, many of them far outside the bounds of her limited vocabulary; yet, stranger still, she soon began to grasp their meaning intuitively, and her quick native perception, keyed high by emergency, led her often to anticipate the physician's wish, and act upon it. More than once she won a look of surprise from the older woman. Donald's directions to Miss Merriman were curt and incisive; but soon he did not limit his speech to them. Rather he seemed to be uttering his thoughts aloud; the old habit of making a running explanation for the benefit of a clinic or the better understanding of an assistant was subconsciously asserting itself, and it was to Rose as though she were listening to the outpouring of a fountain of knowledge, whose waters engulfed her mind and made it gasp, yet carried her along with them. It was all a dream, a weird, impossible nightmare to her; the familiar room began to assume a strange aspect, and the man's words came to her as do those heard in a sleeping vision--real, yet tinctured with unreality. "In this case the elastic tourniquet will stop the blood flow as effectively as the Heidenhain backstitch suture method, I think, Miss Merriman, and it will be much simpler. I'm glad I brought it. Have you the saline solution, and the gauze head-covering ready?" "Yes, doctor." "Then you may administer the ether--use the drop method, and don't forget to show her just how to regulate it. "No blood-pressure machine," he muttered. "Oh, well, we've just got to trust to her being able to stand it, and ..." "And to God," whispered Rose. He glanced quickly up, as though he had already forgotten her presence, and added, gently, "Of course." The small pad of gauze, which Miss Merriman laid over the baby's face, grew moist; a strange, pungent odor began to fill the room. As she bent over to watch intently what the nurse was doing, Rose suddenly found herself beginning to get dizzy. "Stand up, Smiles," came the sharp command. "Here, hold this handkerchief over your mouth and nose. Now, take the bottle yourself ... so ... a drop on the pad ... now. Yes, that's right, just as Miss Merriman has been doing. Little Lou is wholly unconscious, we must keep her so.