Under the modification suggested by the commission the burden imposed upon it would be greater, if possible, than under the original amendment. Under the original amendment, by force of the statute, the filing of the protest would suspend the advanced rate, and the hearing upon the merits would take place after the thirty days had expired. Under the suggestion of the commission conferring upon it the discretionary authority upon complaint to determine whether the rate should go into effect at the time prescribed by law or be suspended, there is imposed an official quasi judicial duty upon the commission, which it should not perform except upon proof that probably the rate sought to be advanced would ultimately be determined to be unreasonable. Remembering the large number of changes of rates daily, and the fact that under the law the complaint could be filed at any time within the thirty days, would it not be an impossible undertaking for the commission to hope to perform this official act with justice to the public or to the carrier? In the multiplicity of duties now demanding its most earnest attention, would not the practical operation of such a law compel it to enter a pro forma order of suspension until the final hearing, when the commission, upon an examination of the complaint, is satisfied that it presented a prima facie case of unreasonable advance? An official tribunal charged with the duty of preventing an unreasonable advance in rates would be constrained, on the presentation of such a complaint, to issue the order of suspension. If the slightest doubt was raised in its mind as to the reasonableness of the advance, its official obligation would require it to enter the order of suspension. Is there any question that such a prima facie case could be made where the consideration of the protest would, of necessity, be ex parte? The committee is not, therefore, able to draw a distinction between the original amendment and that proposed in committee. In the opinion of the committee the reasons stated in the letter of the chairman of the commission, and the reasons given in this report, not only justify it but compel an adverse report. CONDITIONS CONFRONTING CONGRESS.