The error assigned for disallowance of defendant’s challenges of R. H. Anderson and S. S. Baechtel, as trial jurors *430“ for implied bias,” cannot be considered upon the record as presented, hi either challenge appears to have been made for any specific cause authorized by statute. To simply state that “the juror is challenged for implied bias ” is no challenge. A challenge for implied bias must state some one of the nine causes enumerated in section three hundred and forty-seven of the Criminal Practice Act. (People v. Hardin, 37 Cal. 258; People v. Dick, id. 379.)

Again, it appears that neither of the persons so attempted to be challenged served on the trial, having been peremptorily challenged by defendant; and it does not affirmatively appear that defendant had exhausted his peremptory challenges at the time the full panel was accepted and sworn; hence he was not prejudiced by the action of the Court in disallowing his attempted challenge for implied bias.

The bill of exceptions does not purport to contain all, or any considerable portion, of the evidence presented on the trial; hence it is impossible for this Court to determine as to the competency of the evidence relative to the cattle of •37 J. Thomas and J. Farley, not included in the indictment, but which seem to have been found with those described in the indictment, on their first discovery after the alleged larceny.

It appears from the bill of exceptions that “one.Tates was called and sworn as a witness for the prosecution, and, among other things, stated that he had a certain conversation with the prisoner.” This closed the evidence for the prosecution. The defendant was then placed upon the stand as a witness in his own behalf, and was asked if he had the conversation with Tates spoken of by Yates, and answered he did not, and was examined no further by his counsel than concerning said conversation, nor was he examined on any other point, but answered all questions required of him • by the Court; that upon the argument of the case the counsel for the prosecution commented upon *431the fact before the jury; that the defendant refused to be cross-examined to the whole case; that defendant’s counsel protested against such comments, but they were continued by permission of the Court. This conduct of counsel for the prosecution, under sanction of the Court, and against objections of the defendant’s counsel, was irregular, and its permission by the Court erroneous, and manifestly prejudicial to the rights of defendant. (People v. Tyler, 36 Cal. 522.)

The fact that defendant offered himself as a witness in his own behalf, did not, as to him, change or modify the rules of practice with reference to the proper limits of a cross-examination of a witness; and, clearly, the prosecution could not legally claim that defendant should be made a witness for the State against himself. To attempt such an outrage of defendant’s rights, and then, with the sanction of the Court, in argument to the jury, to comment upon the failure of such attempt as a circumstance tending to establish the guilt of defendant, cannot be justified or sanctioned.

The second, fifth, and eighth instructions, given by the Court at request of the prosecution, are obnoxious to the objection,--of substantially asserting that under the indictment, which charges the defendant as principal, he should be found guilty, if the evidence shows him to have been an accessory before the fact, in “advising or encouraging” the commission of the offense. In this respect each of these instructions is erroneous. (People v. Trim, 39 Cal. 75; People v. Campbell, 40 Cal. 129.)

The judgment should, therefore, be reversed, and the cause remanded for a new trial. So ordered.