"Well, I thought it a little queer that the scapula and clavicle should be there. I should have expected him to cut the arm off at the shoulder-joint."
"Yes," said Thorndyke; "so should I; and so it has been done in every case of dismemberment that I am acquainted with. To an ordinary person, the arm seems to join on to the trunk at the shoulder-joint, and that is where he would naturally sever it. What explanation do you suggest of this unusual mode of severing the arm?"
"Do you think the fellow could have been a butcher?" I asked, remembering Dr. Summers' remark. "This is the way a shoulder of mutton is taken off."
"No," replied Thorndyke. "A butcher includes the scapula in a shoulder of mutton for a specific purpose, namely, to take off a given quantity of meat. And also, as a sheep has no clavicle, it is the easiest way to detach the limb. But I imagine a butcher would find himself in difficulties if he attempted to take off a man's arm in that way. The clavicle would be a new and perplexing feature. Then, too, a butcher does not deal very delicately with his subject; if he has to divide a joint, he just cuts through it and does not trouble himself to avoid marking the bones. But you note here that there is not a single scratch or score on any one of the bones, not even where the finger was removed. Now, if you have ever prepared bones for a museum, as I have, you will remember the extreme care that is necessary in disarticulating joints to avoid disfiguring the articular ends of the bones with cuts and scratches."
"Then you think that the person who dismembered this body must have had some anatomical knowledge and skill?"
"That is what has been suggested. The suggestion is not mine."
"Then I infer that you don't agree?"
Thorndyke smiled. "I am sorry to be so cryptic, Berkeley, but you understand that I can't make statements. Still, I am trying to lead you to make certain inferences from the facts that are in your possession."
"If I make the right inference, will you tell me?" I asked.
"It won't be necessary," he answered, with the same quiet smile. "When you have fitted a puzzle together you don't need to be told that you have done it."
It was most infernally tantalising. I pondered on the problem with a scowl of such intense cogitation that Thorndyke laughed outright.
"It seems to me," I said, at length, "that the identity of the remains is the primary question and that is a question of fact. It doesn't seem any use to speculate about it."