delivered the opinion of the Court.
Rеspondents, creditors of a Federal Joint Stock Land Bank located in Illinois, brought the present suit in the district court for southern Ohio to collect a 100% assessmеnt of the statutory double liability of its shareholders, which had previously been decreed in a suit brought by respondents in the district court for northern Illinois. In the Illinois suit the bank and all its stockholders were named as parties defendant, but the present defendants, petitioners here, who are stockholders residing in Ohio, were not served with process. A motion in the district court to dismiss the present suit raised the question whether the bill of complaint, which sets up the decree of the court in the Illinois suit in which it stаtes petitioners were not served with process, but does not allege that the bank is insolvent or show any necessity for the assessment, states a cause of action. The district court gave judgment for petitioners which the Court of Appeals for the Sixth Circuit reversed. Brusselback v. Arnovitz, 87 F. (2d) 761. We granted certiorari, to resolve a cоnflict between the decision of the court below and that of the Court of Appeals for the Second Circuit in Holmberg v. Carr, 86 F. (2d) 727. Compare Brusselback v. Cago Corporation, 85 F. (2d) 20.
The question decisive of the case is whethеr petitioners are bound by the Illinois adjudication, in their absence, *502 of the bank’s insolvency, and the amount of the assessment. Section 16, Federal Farm Loan Act, July 17, 1916, c. 245, 39 Stat. 360, 374, 12 U. S. C. § 812, provides, “Shareholders of every joint stock land bank organized under this Act shall be held individually responsible, equally and ratably, and not one for another, for all contracts, debts, and engagements of such bank to the extent of the amount of stock owned by them at the par value thereof, in addition to the аmount paid in and represented by their shares.”
Before respondents had brought the Illinois suit this Court in
Wheeler
v.
Greene,
The obligation which the statute imposes upon the stоckholders is personal, and petitioners can be held to respond to it only by a suit maintained in a court having jurisdiction to render a judgment against them in personam. As the liability оf the stockholders is to pay the debts of the bank to creditors “equally and ratably,” judicial determination of the inability of the bank to pay *503 its debts and the amount to be assessed against the stockholders to meet the deficiency are prerequisites to the enforcement of liability, and are essential parts of the only cause of action which the statute gives to the creditors. It is plain that in such a suit the existence and extent of insolvency are facts, the allеgation and proof of which cannot be dispensed with as to any stockholder unless, as between the parties to the suit, they are matters already adjudicated.
A stockholder is so far an integral part of the corporation of which he is a member, that he may be bound and his rights foreclosed by authorized cоrporate action taken without his knowledge or participation.
Sanger
v.
Upton,
Whether it be said that by purchasing or retaining his stock in the face of such a procedure the stockholder has *504 consented that the corporation represent him for the purposes of the adjudication, Bernheimer v. Converse, supra, 529, 532, 533; Marin v. Augedahl, supra, 150, or more realistically that as stockholder he has voluntarily assumed a corporate relationship which is subject to the local regulatory power, in the exercise of which the procedure has been attached, as an incident, to his membership in the corporation, Converse v. Hamilton, supra, 260, in either case the procedure conforms to aсcepted principles, involves no want of due process, Converse v. Hamilton, supra; Selig v. Hamilton, supra; Chandler v. Peketz, supra, and at least when it ripens into a judgment is entitled to full faith and credit. Marin v. Augedahl, supra. It is enough that in every casе the stockholder has assumed or retained his membership in the corporation after the warning of the statute, or of rules governing the corporation, оf which he knew or had opportunity to know, that the benefits of membership carry with them the risk that the corporation may stand in judgment for him.
In the present case nо such warning has been given, for no such procedure has been prescribed. The statutes have fixed only the conditions on which liability of the stockholders is to! attach, leaving to creditors as their only recourse the usual procedure of courts as the means of asserting the liability. There is nothing in the statute relating to the organization of Federal Land Banks and the imposition of the stockholders’ liability to suggest that by virtue of their membership in the corporation the stockholders can be said to have subjected themselves to a procedure for determining in their absence the essential conditions of liability, or to have relinquished their right to contest, as in any other litigation, every step essential to its establishment. As we cannot say that petitioners’ membership in the bank was conditionеd upon their surrender of the benefits of a procedure which would other *505 wise be required, there is no basis for a court to dispense with it more than in other cases in which a personal judgment is sought.
Equity Rule 38, providing that in a class suit “one or more may sue or defend for the whole,” was adopted in the exercise of the аuthority conferred on this Court by R. S. § 913, and of its own inherent power to regulate by rules “the modes of proceeding in suits of equity.” Their purpose was to prescribe thе procedure in equity to be followed in cases within the jurisdiction of the federal courts and not to enlarge their jurisdiction. The omission from old Rule 48, amended and promulgated as Rule 38 in 1912,
In the circumstances the decree in the Illinois suit was not res adjudicata as to petitioners in any respect. For that reason the bill of complaint failed tо state a cause of action, and the decree is
Reversed.
