"Hum!" said Holmes savagely. "Mr. Doyle, the leaf on this cigar is unwinding." "Try anoth——" our host was beginning, when I interposed with— "I observe from your remark, Mr. Holmes, that you came straight here from the hairdressers." This time he gaped. "You let him wax your mustache," I continued (For of late Mr. Holmes has been growing a mustache). "He did and before I knew what he was about," Mr. Holmes replied. "Exactly," I said, "and in your hansom you tried to undo his handiwork with your fingers." "To which," our host said with sudden enlightenment, "some of the wax stuck, and is now tearing the leaf of the cigar!" "Precisely," I said, "I knew he had come from a hairdresser's the moment I shook hands with him." "Good-night," said Mr. Holmes, seizing his hat, (he is not as tall as I thought him at first) "I have an appointment at ten with a banker, who——" "So I have been observing," I said. "I knew it from the way you——" But he was gone.