“Is it one of your cases?”

“No; my friend, Merivale, of the Yard, asked me to look into the case. Since I ran down that coiner by the zinc and copper filings in the seam of his cuff they have begun to realize the importance of the microscope.” He looked impatiently at his watch. “I had a new client calling, but he is overdue. By the way, Watson, you know something of racing?”

“I ought to. I pay for it with about half my wound pension.”

“Then I’ll make you my ‘Handy Guide to the Turf.’ What about Sir Robert Norberton? Does the name recall anything?”

“Well, I should say so. He lives at Shoscombe Old Place, and I know it well, for my summer quarters were down there once. Norberton nearly came within your province once.”

“How was that?”