“He’s a fine fellow,” said Holmes, as we came out into Whitehall. “But he has a struggle to keep up his position. He is far from rich and has many calls. You noticed, of course, that his boots had been resoled. Now, Watson, I won’t detain you from your legitimate work any longer. I shall do nothing more today, unless I have an answer to my cab advertisement. But I should be extremely obliged to you if you would come down with me to Woking tomorrow, by the same train which we took yesterday.”

I met him accordingly next morning and we traveled down to Woking together. He had had no answer to his advertisement, he said, and no fresh light had been thrown upon the case. He had, when he so willed it, the utter immobility of countenance of a Red Indian, and I could not gather from his appearance whether he was satisfied or not with the position of the case. His conversation, I remember, was about the Bertillon system of measurements, and he expressed his enthusiastic admiration of the French savant.