The Commission immediately called the responsible official of the Pennsylvania Railroad, which was the leader in this move, "to a personal interview," "expressed their surprise," and suggested the withdrawal of the circular and of the increased rates. This was in August.[237] No attention was paid to this by the road. The Commission waited until October 10th, and then sent a formal communication to the President of the Pennsylvania Railroad, which was followed by correspondence and personal conferences with him. The Commission pointed out that the statement of the circular was "misleading," "not true," "decidedly objectionable"; that the Commission had made no decision with reference to the rates of the Pennsylvania Railroad or the other Eastern lines; that its decision, applicable solely to the roads of the South or Southwest, had been that rates on barrels must be reduced, and that it was not right to use this as an excuse for increasing the rates on barrels. Finally, the Commission said that if it had made any ruling applicable to the Pennsylvania Railroad it would have been compelled to hold that its practice, of twenty years' standing, of carrying the barrels free, since it carried tanks free, was "just and proper," and that there was nothing to show that an advance in its rates was called for.[238] The Interstate Commerce Commission was the body specially created by Congress to interpret the Interstate Commerce Law. The Pennsylvania Railroad was one of the common carriers under the orders of the Commission, and its managers were subjects of jurisdiction, not judges. But its method of running the Supreme Court of Pennsylvania, as if it were one of its limited trains, was now applied with equal confidence to the Interstate Commerce Commission. It insisted that it was itself, not the Commission, which was the judge of what the latter meant by its own decisions. The road continued the rates against which the Commission protested. The Commission demanded that the assertions that the new rule of charging for the barrels and the advance of rates was made "in accordance with the directions" of the Interstate Commerce Commission be withdrawn. The Pennsylvania road responded with another circular, in which it changed the form but repeated the substance. "The action referred to was taken for the purpose of conforming the practice of this company to the principles decided by the Interstate Commerce Commission." The Commission protested that it was not laying down any such "principles" but the corporation declared that that was what it "understood," and held to the advance made on that understanding.[239]