This was a bill in equity, brought in the Supreme Court of the District of Columbia on behalf of 22 companies of Ohio, Pennsylvania. West Virginia, New York, Delaware, New Jersey, and Maryland, in the coal, steel, and related industries, to enjoin the Federal Trade Commission from enforcing or attempting to enforce orders issued by that Commission against the complainant companies, requiring them to furnish monthly reports of the cost of production, balance sheets and other voluminous information in detail upon a large variety of subjects relating to the business in which complainant corporations are engaged. The authority under which the Commission professed to act was expressed in the following resolution adopted by the Commission December 15, 1919:

'Whereas, at a hearing held by the committee on appropriations of the House of Representatives on August 25, 1919, the Federal Trade Commission was requested to suggest what it might undertake to do to reduce the high cost of living; and

'Whereas, the Commission recommended to the said committee that it would be desirable to obtain and publish from time to time current information with respect to 'the production, ownership, manufacture, storage, and distribution of foodstuffs, or other necessaries, and the products or by-products arising from or in connection with the preparation and manufacture thereof, together with figures of cost and wholesale and retail prices,' and particularly with respect to various basic industries, including coal and steel; and

'Whereas the said committee recommended an appropriation of $150,000 for the current fiscal year for the said commission in consequence of this recommendation and the same was duly made by authority of Congress, and made available on November 4, 1919: Now, therefore, be it

'Resolved, that the Federal Trade Commission, by virtue of section 6, paragraphs (a) and (b), of the Federal Trade Commission Act, proceed to the collection and publication of such information with respect to such basic industries as the said appropriation and other funds at its command will permit. And be it further 'Resolved, that such action be started as soon as possible with respect to the coal industry and the steel industry, including in the latter closely related industries such as the iron ore, coke, and pig iron industries.'

Purporting to proceed under this resolution, the Commission served separate notices upon the 22 appellees and many other corporations, engaged in mining, manufacturing, buying, and selling coal, coke, ore, iron and steel products, etc., which directed them to furnish monthly reports in the form prescribed showing output of every kind, itemized cost of production, sale prices, contract prices, capacity, buying orders, depreciation, general administration and selling expenses, income, general balance sheet, etc. Elaborate questionnaires, accompanying these orders, asked for answers revealing the intimate details of every department of the business, both intrastate and interstate. A summary of these printed in the margin sufficiently indicates their contents.1 The concluding paragraph of the notice declared:

'The purpose of this report is to compile in combined or consolidated form the data received from individual companies and to issue currently in such form accurate and comprehensive information regarding changes in the conditions of the industry both for the benefit of the industry and of the public.'

Appellees did not comply with the inquiries in the notices but filed in the Supreme Court District of Columbia, their joint bill against the Commission and its members, wherein they set out its action, alleged that it had exceeded its powers, and asked that all defendants be restrained 'from the enforcement of said orders, and from requiring answers to said questionnaires, and from taking any proceedings whatever with reference to the enforcement of compliance with said orders and answers to said questionnaires'; also for general relief.

Without questioning the appellees' right to seek relief by injunction, the appellants answered, admitted issuing of the orders, claimed authority therefor under sections 6 and 9, Federal Trade Commission Act (Act Sept. 26, 1914, c. 311, 38 Stat. 717, 721, 722 (Comp. St. §§ 8836f, 8836i)), and further alleged and said:

That the reports were required 'for all the purposes and under all the authority granted to them by law, including the purpose of gathering and compiling said information for publication and the consequent regulation of the interstate commerce of said complainants resulting from such publication of the true trade facts as to all of the business of complainants and of others engaged in commerce in those commodities, and including the purpose of making reports to Congress and of recommending additional legislation to Congress.

'Defendants allege that all of the information to be acquired through the answers to said questionnaires is necessary and has direct relation to regulation and control of the interstate and foreign commerce of complainants and others answering said questionnaires, and is sought by the Federal Trade Commission for the purpose and in necessary aid of the regulation of said commerce.

'Defendants admit that no complaint has been filed or is now pending before the commission against any of complainants for a violation of section 5 of the Trade Commission Act, but aver that the activities sought to be enjoined were instituted and are sought to be carried on under the provisions of said Trade Commission Act.

'That one purpose of the requirements made in this case is the gathering of complete information, which is necessary in the proper regulation through publicity of the true facts as to the interstate business of the industry. That such purpose cannot be properly performed without the acquisition of the complete facts. That the acquisition of the complete information and facts required will effectuate such purpose, in that the dissemination of such trade information will tend to prevent undue fluctuations and panic markets based on ignorance of the true facts, or based on incomplete and partial or self-interested information, published only whenever and in so far as it may serve those self-interested who may publish it. That regulation by publicity is, and for a long time has been, recognized as one form of regulation which has been generally conceded to be fair and equitable to all concerned. That unless such regulation through public dissemination of the full and complete facts is carried out, other more drastic forms of attempted regulations without proper information may follow.

'That in addition to the regulatory effect, in and of itself, of such public dissemination of the complete facts, it is one of the purposes of these activities to gather and convey to Congress, for its information in the performance of its duties, the full and complete facts, in order that instead of legislating on incomplete or partial or prejudiced information, it may have the full facts before it. That if any regulatory effect upon intrastate commerce flows from such publicity, it is merely incidental to the general regulation of interstate commerce, as to which the power of Congress is complete.'

The cause was heard upon motion to strike the answer from the files because it contained no adequate defense. The trial court concluded that, as the propounded questions were not limited to interstate commerce, but asked also for detailed information concerning mining, manufacture and intrastate commerce, they were beyond the Commission's authority. 'The power claimed by the Commission is vast and unpracticable. The mere fact that a corporation engaged in mining ships a portion of its product to other states does not subject its business of production or its intrastate commerce to the powers of Congress.' It accordingly held the answer insufficient, and, as defendants declined to amend, granted the injunction as prayed. The Court of Appeals affirmed this action. 52 App. D. C. 202, 285 F. 936. The cause, here by appeal, has been twice argued.

Appellees were not charged with practicing unfair methods of competition (section 5, Act of Sept. 26, 1914 (Comp. St. § 8836e)), or violating the Clayton Act, c. 323, §§ 2, 3, 7, 8 (38 Stat. 730, 731, 732, being Comp. St. §§ 8835b, 8835c, 8835g, 8835h). Orders under such charges can be enforced only through a Circuit Court of Appeals. Section 11, Clayton Act (Comp. St. § 8835j); section 5, Federal Trade Commission Act (Comp. St. § 8836e).

The action of the Commission here challenged must be justified, if at all, under the paragraphs of sections 6 and 9. Act of September 26, 1914, copied below, and the only methods prescribed for enforcing orders permitted by any of these paragraphs are specified in sections 9 and 10 (Comp. St. §§ 8836i, 8836j). They are application to the Attorney General to institute an action for mandamus, and proceedings by him to recover the prescribed penalties.

'Sec. 6. That the Commission shall also have power—

'(a) To gather and compile information concerning, and to investigate from time to time the organization, business, conduct, practices, and management of any corporation engaged in commerce, excepting banks and common carriers subject to the act to regulate commerce, and its relation to other corporations and to individuals, associations, and partnerships.

'(b) To require, by general or special orders, corporations engaged in commerce, excepting banks, and common carriers subject to the act to regulate commerce, or any class of them, or any of them, respectively, to file with the Commission in such form as the commission may prescribe annual or special, or both annual and special, reports or answers in writing to specific questions, furnishing to the Commission such information as it may require as to the organization, business, conduct, practices, management, and relation to other corporations, partnerships, and individuals of the respective corporations filing such reports or answers in writing. Such reports and answers shall be made under oath, or otherwise, as the Commission may prescribe, and shall be filed with the Commission within such reasonable period as the commission may prescribe, unless additional time be granted in any case by the Commission. * * *

'(f) To make public from time to time such portions of the information obtained by it hereunder, except trade secrets and names of customers, as it shall deem expedient in the public interest, and to make annual and special reports to the Congress and to submit therewith recommendations for additional legislation, and to provide for the publication of its reports and decisions in such form and manner as may be best adapted for public information and use.

'(g) From time to time to classify corporations and to make rules and regulations for the purpose of carrying out the provisions of this act.

'(h) To investigate, from time to time, trade conditions in and with foreign countries where associations, combinations, or practices of manufacturers, merchants, or traders, or other conditions, may affect the foreign trade of the United States, and to report to Congress thereon, with such recommendations as it deems advisable. * * *

'Sec. 9. That for the purposes of this act the Commission, or its duly authorized agent or agents, shall at all reasonable times have access to, for the purpose of examination, and the right to copy any documentary evidence of any corporation being investigated or proceeded against; and the Commission shall have power to require by subpoena the attendance and testimony of witnesses and the production of all such documentary evidence relating to any matter under investigation. Any member of the Commission may sign subpoenas, and members and examiners of the Commission may administer oaths and affirmations, examine witnesses, and receive evidence.

'Such attendance of witnesses, and the production of such documentary evidence, may be required from any place in the United States, at any designated place of hearing. And in case of disobedience to a subpoena the Commission may invoke the aid of any court of the United States in requiring the attendance and testimony of witnesses and the production of documentary evidence. * * * 'Upon the application of the Attorney General of the United States, at the request of the Commission, the District Courts of the United States shall have jurisdiction to issue writs of mandamus commanding any person or corporation to comply with the provisions of this act or any order of the Commission made in pursuance thereof. * * *

'Sec. 10. That any person who shall neglect or refuse to attend and testify, or to answer any lawful inquiry, or to produce documentary evidence, if in his power to do so, in obedience to the subpoena or lawful requirement of the Commission, shall be guilty of an offense and upon conviction thereof by a court of competent jurisdiction shall be punished by a fine of not less than $1,000 nor more than $5,000, or by imprisonment for not more than one year, or by both such fine and imprisonment. * * *

'If any corporation required by this act to file any annual or special report shall fail so to do within the time fixed by the Commission for filing the same, and such failure shall continue for thirty days after notice of such default, the corporation shall forfeit to the United States the sum of $100 for each and every day of the continuance of such failure, which forfeiture shall be payable into the treasury of the United States, and shall be recoverable in a civil suit in the name of the United States brought in the district where the corporation has its principal office or in any district in which it shall do business. It shall be the duty of the various district attorneys, under the direction of the Attorney General of the United States, to prosecute for the recovery of forfeitures. The costs and expenses of such prosecution shall be paid out of the appropriation for the expenses of the courts of the United States.'

There was nothing which the Commission could have done to secure enforcement of the challenged orders except to request the Attorney General to institute proceedings for a mandamus or supply him with the necessary facts for an action to enforce the incurred forfeitures. If, exercising his discretion, he had instituted either proceeding, the defendant therein would have been fully heard, and could have adequately and effectively presented every ground of objection sought to be presented now. Consequently the trial court should have refused to entertain the bill in equity for an injunction.

We think that the consent of the parties was not enough to justify the court in considering the fundamental question that has been twice argued before us. It was intended by Congress in providing this method of enforcing the orders of the Trade Commission to impose upon the Attorney General the duty of examining the scope and propriety of the orders, and of sifting out of the mass of inquiries issued what in his judgment was pertinent and lawful before asking the court to adjudge forfeitures for failure to give the great amount of information required or to issue a mandamus against those whom the orders affected and who refused to comply. The wide scope and variety of the questions, answers to which are asked in these orders, show the wisdom of requiring the chief law officer of the government to exercise a sound discretion in designating the inquiries to enforce which he shall feel justified in invoking the action of the court. In a case like this, the exercise of this discretion will greatly relieve the court and may save it much unnecessary labor and discussion. The purpose of Congress in this requirement is plain, and we do not think that the court below should have dispensed with such assistance. Until the Attorney General acts, the defendants cannot suffer, and, when he does act, they can promptly answer and have full opportunity to contest the legality of any prejudicial proceeding against them. That right being adequate, they were not in a position to ask relief by injunction. The bill should have been dismissed for want of equity.

This conclusion leads to a reversal of the decree of the District Court of Appeals, and a remanding of the case to the Supreme Court of the District with direction to dismiss the bill.

Mr. Justice SUTHERLAND and Mr. Justice BUTLER took no part in the consideration or decision of this case.

The separate opinion of Mr. Justice McREYNOLDS:

I think the decree below should be affirmed-the Commission went beyond any power granted by Congress.

This appeal was taken four years ago. Nearly seven years have passed since the cause began-June 12, 1920. Able counsel have argued it twice before us, but none suggested that the trial court erred in failing to dismiss the bill because there was an adequate remedy at law. Under well-settled doctrine such a defense may be waived by failure promptly to advance it. Reynes v. Dumont, 130 U. S. 354, 395, 9 S. Ct. 486, 32 L. Ed. 934; Singer Sewing Machine Co. v. Benedict, 229 U. S. 481, 484, 33 S. Ct. 942, 57 L. Ed. 1288; American Mills Co. v. American Surety Co., 260 U. S. 360, 363, 43 S. Ct. 149, 67 L. Ed. 306.

In my view it is now much too late for this court first to set up and then maintain the defense of lack of jurisdiction in the trial court, and I cannot acquiesce in the disposition of the cause upon that instable ground. The real issue should be met and determined.