Section 21. The memorandum of appeal must, when the appeal lies to the Commissioner, be presented within

21. The memorandum of appeal must, when the appeal lies to the Commissioner, be presented within 1871.] Oudh Civil Courts. 419 within six weeks, the period being reckoned from and exclusive of the day on which the decision or order appealed against was passed, and also exclusive of such time as may be requisite for obtaining a copy of such decision or order; and, in all other cases, within the periods fixed by the law of limitation relating to the presentation of appeals for the time being in force.