"They are—to the surgical profession."
"Do you own more than one knife of this sort?"
"I do not."
"Did you ever own more than one like this?"
"Not at the same time."
"Then you have lost a knife like this?"
"No; but I have broken two."
"When did you last see deceased alive?"
"Not since our encounter on the street; that was a week ago, I should think, perhaps longer."
"Who witnessed that affair?"