I became irritated, and made no reply.
"Answer," he again commanded.
"I have seen its reflection in a glass."
"I say no," he replied; "you have not."
"You are impudent," I exclaimed.
"Not at all," he said, good humoredly; "how easy it is to make a mistake. I venture to say that you have never seen the reflection of the back of your head in a mirror."
"Your presumption astounds me."
"I will leave it to yourself."
He took a hand-glass from the table and held it behind my head.
"Now, do you see the reflection?"