The girl hesitated. "Thank you," she said suddenly—"I will. I shall be ready in five minutes."

She slipped from her high stool, and stood putting away her things—a tiny figure scarcely bigger than a child, yet full of character and dignity.

"In the meantime come and demonstrate this tiresome old artery, Miss Maclean," said Miss Philips. "I am getting hopelessly muddled."

"If you knew the surroundings in which I have spent the last six months," said Mona, smiling, "you would not expect me to know more than the name of the internal iliac artery. I shall be very glad to come and look at your dissection though, if I may."

"You see I have not forgotten the kindness you showed me when I first began."

"I don't remember any kindness on my part. You were kind enough to let me refresh my memory on your dissection, I know."

"That's one way of putting it. Do you remember my asking you how closed tubes running through the body could do it any good?"

"Yes; and I remember how delighted I was with the intelligence of the question. Heigh-ho! what a child you seemed to me then!"

She took the forceps in her hand, and in a moment the old enthusiasm came back.

"How very interesting!" she said. "Look at this deep epigastric."