All save one of the assignments of error have been withdrawn and that assignment is to so much of the order of the commission as requires appellant to file, *589within fifteen days, a tariff schedule of rates for all industrial service rendered by it. As such an order has been held to be interlocutory, the appeal must be quashed: Peoples Natural Gas Co. v. Public Service Commission, 268 Pa. 235; Citizens, etc., Ry. Co. v. Public Service Commission, 271 Pa. 39.

The appeal is quashed.