Mr. Williams. About which floor it was?
Mr. Ball. Yes.
Mr. Williams. No; I wasn't.
Mr. Ball. Are you sure today?
Mr. Williams. I am not sure today.
Mr. Ball. But you think it was the fifth or the sixth floor?
Mr. Williams. Yes, sir.
Mr. Ball. Are you sure it was Oswald you talked to?
Mr. Williams. I am sure it was Oswald. I didn't talk to him.
Mr. Ball. But you heard him?