“ Under our decisions construing and applying the section, Judge Bourquin sitting alone was without jurisdiction to hear either the motion to dissolve the temporary restraining order or the motion to dismiss the bill on the merits. In the presence of the application for an interlocutory injunction-which was at no time withdrawn but constantly pressed-a single judge, whether Judge Pray or Judge Bourquin, was as much without authority to dismiss the bill on the merits as he would be to grant either an interlocutory or a permanent injunction. Our decisions leave no doubt on these points. ”

“ The Northern Pacific Railway Company and three others brought a suit in the District Court for the District of Montana against the Board of Railroad Commissioners of that state and others to prevent the enforcement of a rate order made by the board, the objection urged against the order being that it was in conflict with the commerce clause of the Constitution of the United States and with certain provisions of the commerce laws of Congress. ”