(a) that the district court had no jurisdiction in the case unless an objection to the jurisdiction of the district court had been formally taken at any time during the proceedings of the case and before the decision of the Court had been given but if such objection had been so taken, and was well founded, the Court may refer the case back to the magistrate with such directions as it considers proper, or may hear and determine the case upon the merits, and may confirm, reverse or vary the decision of the magistrate or may make such other order in the matter as the Court thinks just, and may by such order exercise any power which the magistrate against whose decision the appeal is made might have exercised;