Q.—Do you know Mr. Mayer?
A.—Yes, sir.
Q.—How long have you know him?
A.—Since I came to this country.
Q.—Did you not know him before?
A.—No, sir.
Q.—How did you become acquainted with him?
A.—I met him at the house of a friend.
Q.—In what place?
A.—In Geneva.