“Exactly.”

“Middlesex Corps, no doubt.”

“That is so. Mr. Holmes, you are a wizard.”

I smiled at his bewildered expression.

“When a gentleman of virile appearance enters my room with such tan upon his face as an English sun could never give, and with his handkerchief in his sleeve instead of in his pocket, it is not difficult to place him. You wear a short beard, which shows that you were not a regular. You have the cut of a riding-man. As to Middlesex, your card has already shown me that you are a stockbroker from Throgmorton Street. What other regiment would you join?”

“You see everything.”