N. H. & H. Ry. Co. v. New York, 165 U. S., 628; Gladson v. Minnesota, 166 U. S., 427; Pennsylvania R. Co. v. Hughes, 191 U. S., 477.
The stipulation upon the hack of the message, amounting in its effect to an attempt to exempt the company from the consequences of its own negligence, was void, under the law both of this State and the State of Tennessee. Western U. Tel. Co. v. Neill, 57 Texas, 283; Louisville & N. Ry. Co. v. Smith (Tenn.), 134 S. W., 866.
The legislation of Congress referred to is the amendment of June 18, 1910, to the Interstate Commerce Act. Supp., 1912, Fed. Stat. Ann., 112. If this amendment was an exertion by Congress of its authority over the subject of the liability of telegraph companies for the negligent non-delivery of interstate messages, including that of their right to provide by contract that they should be exempt from such liability, or if it clearly manifested a purpose on the part of Congress to extend its authority over those subjects, the rules of the State upon them are, of course, superseded. But we do not regard the amendment as open to any such construction. It is not necessary to here set it out, but its examination reveals that it classifies telegraph companies doing an interstate business as common carriers within the meaning of the Act; requires that their charges shall be just and reasonable; prohibits every unjust and unreasonable charge; permits their classification of messages and the charging of different rates therefor; and, further, in section 15 as amended, empowers the Interstate Commerce Commission to determine, after complaint made, whether their charges, regulations, or practices are unjust, unreasonable, discriminatory, or otherwise in violation of the Act, and, if it be of the opinion that they are, to prescribe those which are just, fair and reasonable. There is no mention of the liability of such companies for'negligence. That subject is not dealt with or touched upon. If it had been the purpose of Congress to legislate upon it, we think it would have done so in terms clear and unmistakable. We are not required to assume that such was the intention in the absence of its clear manifestation. The laws of a State as they may be properly directed to the subjects of interstate commerce are not to be held as inconsistent with an Act of Congress unless they present an "absolute conflict, or unless, at least, a purpose on the part of Congress to legislate upon the particular subject is clearly revealed. As was said in Missouri, K. & T. Ry. Co. v. Harris, 234 U. S., 419, “this rule rests upon fundamental grounds and should not be disregarded.” It was furthermore affirmed in that case:
“It is, of course, settled that when Congress has exerted its paramount legislative authority over a particular subject of interstate commerce, State laws upon the same subject are superseded. Northern Pac. Ry. Co. v. Washington, 222 U. S., 370, 378; Erie Railroad Co. v. New York, decided May 25, 1914, 233 U. S., 671. But it is equally well settled that the mere creation of the Interstate Commerce Commission, and the grant to it of a measure of control over interstate commerce,, does not of itself, and in the absence of specific action by the Com