
85 U.S. 629 (1873)
18 Wall. 629
GRAY
v.
ROLLO.
Supreme Court of United States.

*630 Mr. J.S. Norton, for the appellant.
Mr. A.M. Pence, contra.
*631 Mr. Justice BRADLEY delivered the opinion of the court.
The bill being demurred to, the assent of Franklin Gray to the appropriation asked by the complainant must be taken as true; and the question is, whether set-off can be allowed in such a case as the one presented?
The language of the Bankrupt Act, on the subject of set-off, is: "That in all cases of mutual debts, or mutual credits between the parties, the account between them shall be stated, and one debt set off against the other, and the balance only shall be allowed or paid." It is clear that these claims are not mutual debts. They are not between the same parties. The notes exhibit a liability of the complainant and Gaylord; the policies, a claim of the complainant and his brother. But it is said that by the law of Illinois, all joint obligations are made joint and several; and, therefore, that the complainant is separately liable on the notes, and could be sued separately upon them. Granting this to be so, the debts would still not be mutual. If sued alone on the notes, the claim on the policies, which he might seek to set off, pro tanto, against the notes, is a claim due not to him alone, but to him and his brother. His brother's consent that he might use the claim for that purpose would not alter the case. Had his brother's interest been assigned to him before the bankruptcy of the company, and without any view to the advantage to be gained by the set-off, the case would be different.
*632 Nor does the case present one of mutual credit. There was no connection between the claims whatever, except the accidental one of the complainant's being concerned in both. The insurance company, so far as appears, took the notes without any reference to the policies of insurance; and Gray Brothers insured with the company without any reference to the notes. Neither transaction was entered into in consequence of, or in reliance on, the other; and no agreement was ever made between the parties that the one claim should stand against the other. There being neither mutual debts nor mutual credits, the case does not come within the terms of the Bankrupt law. If it can be maintained at all, it must be upon some general principle of equity, recognized by courts of equity in cases of set-off; which, if it exist, may be considered as applicable under an equitable construction of the act. But we can find no such principle recognized by the courts of equity in England or this country, unless in some exceptional cases which cannot be considered as establishing a general rule. In Pennsylvania, it is true, set-off is allowed in cases where the claims are not mutual, and, in that State, under the decisions there, it is probable that set-off would be allowed in such a case as this. But we do not regard the rule adopted in Pennsylvania as in accord with the general rules of equity which govern cases of set-off. We think the general rule is stated by Justice Story, in his treatise on Equity Jurisprudence,[*] where he says: "Courts of equity, following the law, will not allow a set-off of a joint debt against a separate debt, or conversely, of a separate debt against a joint debt; or, to state the proposition more generally, they will not allow a set-off of debts accruing in different rights. But special circumstances may occur creating an equity, which will justify even such an interposition. Thus, for example, if a joint creditor fraudulently conducts himself in relation to the separate property of one of the debtors, and misapplies it, so that the latter is drawn in to act differently from what he would if he knew the *633 facts, that will constitute, in a case of bankruptcy, a sufficient equity for a set-off of the separate debt created by such misapplication against the joint debt. So, if one of the joint debtors is only a surety for the other, he may, in equity, set off the separate debt due to his principal from the creditor; for in such a case the joint debt is nothing more than a security for the separate debt of the principal; and, upon equitable considerations, a creditor who has a joint security for a separate debt, cannot resort to that security without allowing what he has received on the separate account for which the other was a security. Indeed, it may be generally stated, that a joint debt may, in equity, be set off against a separate debt, where there is a clear series of transactions, establishing that there was a joint credit given on account of the separate debt." Other instances are given by way of illustration of the principle on which a court of equity will deviate from the strict rule of mutuality, allowing a set-off; all of them based on the idea that the justice of the particular case requires it, and that injustice would result from refusing it; but none of them approaching in likeness to the case before the court. There is no rule of justice or equity which requires that Gray Brothers should be paid in preference to other creditors of the insurance company, out of the specific assets represented by the notes of Gray and Gaylord. If the complainant instead of the insurance company were bankrupt, and the notes were valueless, his brother and the creditors of Gray Brothers would think it very hard if the company were allowed to pay the insurance pro tanto with that worthless paper.
The case of Tucker v. Oxley,[*] which arose out of the Bankrupt Act of 1800, has been pressed upon our attention by the counsel of the appellant, on the supposition that it is decisive in his favor. The clause relating to set-off contained in that act[] does not materially differ from the corresponding clause in the act of 1867. Mutual credits given, and mutual debts existing, before the bankruptcy, are made *634 the ground of set-off in both acts. But the case of Tucker v. Oxley will be found to differ from the present. There two persons by the name of Moore, being partners, became indebted to Tucker. They afterwards dissolved partnership, and Tucker became indebted to one of them, who continued the business, and who afterwards became bankrupt. Oxley, the assignee, sued Tucker for this debt, but the latter was allowed to set off his claim against the two. The court put the decision upon the ground that the debt due from the two Moores to Tucker could have been collected from the property of either of them, and was provable under the bankruptcy proceedings against the estate of him who became bankrupt, and hence it might be set off against any claim which the bankrupt had against Tucker. The case, therefore, was the same as the case before us would have been if the complainant had been solely entitled to the insurance-money, and if he and not the company had become bankrupt. In such case the company, according to the case of Tucker v. Oxley, could have set off the notes of the complainant and Gaylord against the claim for insurance. The reciprocal form of this rule would have enabled the complainant to succeed in this case had he been the sole claimant of the money due for insurance. In other words, the case of Tucker v. Oxley decides that a joint indebtedness may be proved and set off against the estate of either of the joint debtors who may become bankrupt, and the fact that it may be subject to be marshalled makes no difference. The joint debtors are severally liable in solido for the whole debt. But the case does not decide that a joint claim, that is to say, a debt due to several joint creditors, can be set off against a debt due by one of them. If a debt is due to A. and B., how can any court compel the appropriation of it to pay the indebtedness of A. to the common debtor without committing injustice toward B.? The debtor who owes a debt to several creditors jointly cannot discharge it by setting up a claim which he has against one of those creditors, for the others have no concern with his claim and cannot be affected by it; and no more can one of several joint creditors, who *635 is sued by the common debtor for a separate claim, set off the joint demand in discharge of his own debt, for he has no right thus to appropriate it. Equity will not allow him to pay his separate debt out of the joint fund. And if he had the assent of his co-obligees to do this, it would be unjust to the suing debtor, because he has no reciprocal right to do the same thing.
The case before us, therefore, is clearly distinguishable from that of Tucker v. Oxley, and the ground on which that case was put is not applicable to this.
DECREE AFFIRMED.
NOTES
[*]  Section 1437.
[*]  5 Cranch, 34.
[]  2 Stat. at. Large, 38, § 42.
