“And I hope, also,” he continued, sitting down in the rocking-chair, “that the cares of medical practice have not entirely obliterated the interest which you used to take in our little deductive problems.”

“On the contrary,” I answered, “it was only last night that I was looking over my old notes, and classifying some of our past results.”

“I trust that you don’t consider your collection closed.”

“Not at all. I should wish nothing better than to have some more of such experiences.”

“Today, for example?”

“Yes, today, if you like.”

“And as far off as Birmingham?”

“Certainly, if you wish it.”

“And the practice?”