"Sorry, Crawford.

Mary--Miss Lathrop, I want to present my friend, Crawford Smith.

He's my roommate at college." Mary and Crawford shook hands.
"I have met Mr.Smith, too, before," she said.
The young gentlemen, both of them, looked astonished.
"Have you ?" cried Sam.

"Oh, I say! I didn't know that.

When was it ?" His friend, too, was plainly puzzled.