In Gumilla v. Industrial Acc. Com. (1921) 187 Cal. 638, the writ applicant sought review of an Industrial Accident Commission order granting a rehearing in a case which was originally decided in the applicant's favor, claiming that the petition for rehearing had been untimely filed. The Supreme Court denied the writ, stating: " A writ of certiorari does not lie to review an order made in a matter prior to the final adjudication thereof. The Industrial Accident Commission proposes to decide the case again after the order granting the rehearing, but it has not yet done so. Final action thereon has not yet been taken. Under these circumstances, the application for a writ of review of the order granting a hearing is premature. " ( Id., at pp. 639-640.)