Motions for continuance on account of the absence of any witness must show the steps which have been taken to secure the attendance of the witness and must reveal the nature of the witness’s testimony. The motion must also state the time at which the witness will be available and, unless waived, must include a certificate of a doctor when illness of the witness is alleged. The stipulation of the adversary as to the witness’s testimony constitutes sufficient cause to deny the motion for continuance.