"Ah, the good doctor!" remarked Mrs. Smith, her countenance lighting up.
"Yes. But, pray, when are you coming home?"
"This evening."
"Very well. Do you come by tube or by air-train?"
"Oh, by tube."
"Yes; and at what hour will you arrive?"
"About eleven, I suppose."
"Eleven by Centropolis time, you mean?"
"Yes."
"Good-by, then, for a little while," said Mr. Smith as he severed communication with Paris.