Owing to the enforced relationship of Chicago to the strike which started within its borders, and because of its importance as a center of railway traffic, Government officials at Washington were not surprised by the early and persistent complaints of mail and interstate commerce obstructions which reached them from that city. It was from the first anticipated that this would be the seat of the most serious complications, and the place where the strong arm of the law would be most needed. In these circumstances it would have been a criminal neglect of duty if those charged with the protection of governmental agencies and the enforcement of orderly obedience and submission to Federal authority, had been remiss in preparations for any emergency in that quarter. On the thirtieth day of June the district attorney at Chicago reported by telegraph that mail trains in the suburbs of Chicago were, on the previous night, stopped by strikers, that an engine had been cut off and disabled, and that conditions were growing more and more likely to culminate in the stoppage of all trains; and he recommended that the marshal be authorized to employ a force of special deputies who should be placed on trains to protect mails and detect the parties guilty of such interference. In reply to this despatch Attorney-General Olney on the same day authorized the marshal to employ additional deputies as suggested, and designated Edwin Walker, an able and prominent attorney in Chicago, as special counsel for the Government, to assist the district attorney in any legal proceedings that might be instituted. He also notified the district attorney of the steps thus taken, and enjoined upon him that “action ought to be prompt and vigorous,” and also directed him to confer with the special counsel who had been employed. In a letter of the same date addressed to this special counsel, the Attorney-General, in making suggestions concerning legal proceedings, wrote: “It has seemed to me that if the rights of the United States were vigorously asserted in Chicago, the origin and center of the demonstration, the result would be to make it a failure everywhere else, and to prevent its spread over the entire country”; and in that connection he indicated that it might be advisable, instead of relying entirely upon warrants issued under criminal statutes against persons actually guilty of the offense of obstructing United States mails, to apply to the courts for injunctions which would restrain and prevent any attempt to commit such offense. This suggestion contemplated the inauguration of legal proceedings in a regular and usual way to restrain those prominently concerned in the interference with the mails and the obstruction of interstate commerce, basing such proceedings on the proposition that, under the Constitution and laws, these subjects were in the exclusive care of the Government of the United States, and that for their protection the Federal