"I see by the papers to-day that one of the cursed rebel officers who gave them the slip at Elmira is traveling in the disguise of a minister. I guess it's mighty unpleasant to know that even if you meet a parson in a train like as not he is a rebel in disguise. Now, mister, may I ask where you have come from and where you are going to?"

"You may ask what you like," Vincent said quietly; "but I am certainly not going to answer impertinent questions."

A hum of approval was heard from several of the passengers.

"If you hadn't got that black coat on," the man said angrily, "I would put you off the car in no time."

"Black coat or no black coat," Vincent said, "you may find it more difficult than you think. My profession is a peaceful one; but even a peaceful man, if assaulted, may defend himself. You say it's unpleasant to know that if you travel with a man in a black coat he may be a traitor. It's quite as unpleasant to me to know that if I travel with a man in a brown one he may be a notorious ruffian, and may as likely as not have just served his time in a penitentiary."