“John Martin recalled.
“Foreman (to witness). You have already been sworn, so you can consider yourself under oath. Mr. Martin: I desire to stand on my constitutional right and not to testify further.
“Mr. Heney: If you feel that your testimony might have a tendency to subject you to prosecution—. A. (interrupting). No, not that. I am not so advised that that is necessary. My constitutional rights are broader than that, I am advised.
“Q. Then you don’t desire to testify? A. No, sir.
“Mr. Heney: All right.”
Mr. Frank G. Drum testified as follows:
“Q. Do you know Abraham Ruef? A. Met him.
“Q. Did you have any conversation with him about that time? A. No, sir.
“Q. I mean a conversation with reference to the rates? A. No, not that I know anything about.”