Margaret rose to meet Miss Dix as she came along the hall.
"I am going to stay in Washington a few days," she said, "and I would like to be useful while I am here. Can I do anything for you?"
"Who are you?" asked the lady. Margaret presented her credentials, and Miss Dix glanced them over, then looked sharply at their owner.
"I am afraid you are too young," she said.
"I am twenty-eight, and I feel a hundred," said Margaret.
"Do you know anything about nursing?"
"As much as ladies usually know."
"Will you go to a disagreeable place?"
"Yes, if it is not out of the city."
"Come, then; my ambulance is at the door."