delivered the opinion of the Court.

The suit in this ease was brought by the receivers of the United Surety Company against the Fidelity and Deposit Company, the appellant, to> recover the sum of $5,183.34 in the hands of the appellant belongings to the appellees, and .about which there is no dispute, but to the recovery of which the. appellant interposed two pleas of setoff, one, for the sum of $3,666.01 and the other for the sum of $1,417.98. The first of these amounts ($3,666.01) was allowed as a credit in a suit brought by tbe appellees against the appellant, which resulted in a verdict for the appellees. On appeal that judgment was reviewed and affirmed by this Court (ante, p>. 479), and as the credit is composed of the same *504 items as the one there allowed, it, of course, will not again he allowed in this case.

The first set-off claim is thus eliminated from all further consideration, leaving only the second claim to be considered by m •

In tbe trial of the case below, both -set-off claims were excluded by the court, sitting as a jury, and a verdict was rendered by it for the plaintiffs for the- sum -claimed by them with interest, and upon such verdict a judgment was thereafter entered.

Tbe set-off claim of $1,417.98 is founded upon the following facts. On the 24th day of April, 1909, -the American Bonding Company issued to the Dixie Fire Insurance Company, obligiee, a fidelity bond in the penalty of $10,000, on behalf of L. S. McEnany, as general agent for the Dixie Eire Insurance Company. -On the 2nd day -of August, 1909, the United ¡Surety Company and the American Bonding Company entered into- an agreement of reinsurance covering this list, the United Surety Company thereby agreeing to pay to the American Bonding Company o-ne-third of any sum or sum-s which that -company should become liable for under said bond. Some time before the 6th day of December, '1912, -a claim was made-on the American Bonding Company by the Dixie Eire Insurance Company under the McEnany bond, and on -or about that- -date the American Bonding Company filed in the case of Bowles et al. v. United Surety Company et al., in the Circuit Court -o-f Baltimore City, a petition -setting forth the execution of the McEnany bond by it, the reinsurance of the United Surety Company and the fact that claim had been made upon that bond; and praying that the receivers -of the United -Surety Company be ordered' to retain in their bands a -sum to p-ay their share o-f any loss. With its said petition the American Bonding -Company filed a contingent -claim for loss on the McEnany bond.

On the 27th day of June, 1913, -the American Bonding Company entered into a reinsurance agreement with the Fidelity and Deposit Company, by which the Fidelity and

*505 Deposit Company agreed to reinsure with the American Bonding Company the risk already assumed and those to he assumed hy it in the execution of indemnity .agreements, undertakings, etc., and in this agreement are found the following provisions:

“The Fidelity does hereby agree to pay the American the full amount of the ultimate loss which the American shall pay after the close of business on tbe 31st day of May, 1913, under or by virtue of eacb of sueb indemnity agreements, undertakings, recognizances, bonds and obligations of suretyship generally burglary, robbery, and theft policies, and reinsurance agreements, as well as on account of costs, expenses, and attorneys’ fees incurred by the American in investigating, settling or resisting any claim made thereunder, in defending or prosecuting any action, suit or other proceedings in connection therewith, or in obtaining, or attempting to obtain, a release thereunder.

“The term ‘ultimate loss,’ as herein used, shall he the net loss sustained by tbe American on any instrument hereby reinsured after realizing upon all indemnity agreements, .reinsurance agreements, applications, collateral security of all kinds, rights of contribution from co-sureties, privileges, recourses and benefits which tbe American may hold, or to which it may he entitled, in connection with such instrument.”

Though suit wa® brought hy the Dixie Fire Insurance Company against the American Bonding Company upon its claim under the McEnany bond, it Wasi finally adjusted hy them with the approval of the United .Surety Company, and on the 14th day of November, 1913, the American Bonding' Company paid to the Dixie Eire Insurance Company the sum of $5,826.80, the .amount of loss agreed upon. And on November 19th, 1913, it rendered a statement to' the Fidelity and Deposit Company of losses paid during the week ending November 15th, 1913, which included the sum so paid hy it to the Dixie Eire Insurance Company on the McEnany bond, and on November 25th, 1913, the Fidelity and Deposit Company paid the amount of said statement to "the American' *506 Bonding'Company. Thereafter, on Dteoember 7th, 1913, the American Bonding Company filed in said case of Bowles v. United Surety Company its liquidated claim for said loss and -as a result thereof the auditor allowed the American Bonding Ctempany its claim against the United Shrety Company of $1,722.47, being one-third of the entire loss, or the share of loss that was to be paid by the United Surety Company under its agreement of reinsurance. Later, on January 20th, 1922, a dividend of twenty per cent, upon the amount of claim so allowed, .amounting'' to $354.49, was paid by the plaintiffs as receivers of the United Surety Company to the. attorney of the American Bonding Company, and it in turn paid over said dividend to the Fidelity and Deposit Company, the defendant herein, leaving owing by the plaintiffs on account of the American Bonding Company’s claim the net amount of $1,417.98, the credit a-sked' for by the Fidelity and Deposit Company under its plea of set-off.

The sole question here for our consideration is, Could the defendant’s claim of $1,417.98 -be properly allowed under its plea of set-off to plaintiffs’ claim ?

The defence of set-off is limited to mutual debts. To make a plea of setoff good the debts must be mutual and must be of the same kind and quality. Impervious Products Co. v. Gray, 127 Md. 64; Cohen v. Karp, 143 Md. 208; 1 Poe, Pl. & Pr., sec. 613. It is contended by the appellees, plaintiffs below, that the plea in this case is. bad, as it violates this rule, that is to say, that the debts are not mutual and of the same kind and quality.

The plaintiffs’ .claim is a debt directly owing by the de^ fendant to the plaintiffs, growing out of dealings between them upon a .contract or agreement entered into by them, while the defendant’s claim consists of -a, debt resulting from a contract made by the American Bonding Company with the plaintiffs, and whatever interest, if any, the defendant has therein, it has .acquired by subrogation under its contract with the American Bonding Company. The defendant, by its reinsurance. agreement with the American Bonding Com *507 pany, agreed to pay to it the full amount of -the ultimate loss which the American Bonding Oompany should he required to pay by virtue of its indemnity agreements, etc.

The term “ultimate loss” is defined by the agreement itself to be the net loss sustained by the American Bonding Company on any instrument reinsured by such .agreement “after realizing upon all indemnity .agreements, reinsurance agreetments, applications, collateral securities of .all kinds, rights of contributions from co-sureties, privileges, recourses and benefits which the American may hold or to which it may he entitled in connection with such instrument.”

This agreement, it would seem, contemplates only the payment of such net loss a® the American) Bonding Company should sustain .under the bond) reinsured by the United Surety 'Company; which met loss would he the balance after deducting, from the .amount it paid under that bond, all salvage which it might receive from MeEnany and all dividends which it has or may receive from the receivers of the United Surety Company.

It was the intention of the parties a® disclosed by said agreement .that the American Bonding Oompany was to realize what it could from the sources stated in reduction of the losses under the indemnity agreements, and if suit or action was brought, it was to be brought by the American Bonding . Company, or, .as stated by the power contained in the agreement, by the Fidelity and Deposit Company in the name of the American Bonding Company. That this was the meaning of the contract between them, and that the United’s share of the los® under the bond was still owing to the American Bonding Company, is shown by the fact that the American Bonding Company on thei third day of December, 1913, filed in the case of Bowles v. United Surety Company its proof of loss, wherein its treasure!* made oath that the United Surety Company was owing the American Bonding Oompany the amount mentioned and the payment thereafter of the dividend thereon to the American Bonding Com *508 pany, all of which was dome after the execution, of the reinsurance agreement.

A suit to recover the United Surety Company’s share of the losses under the McEnany bond could only have been brought by the American Bonding, Company, or, under its said agreement, by tbe Fidelity and Deposit Company in the name of the American Bonding Company.

The test as to mutuality of claims, as stated in 24 R. C. L. 558, sec. 62, is that the set-off claim “must be such a demand as that the defendant in his own name, or in the names of defendants sued, without bringing: in the name of a stranger to the suit, may maintain an action of debt or indebitatus assumpsit on it, against the party, or 'all the parties suing, as the case may be. Less than that is not mutuality,” or “that the indebtedness, for which the action isi brought must be such that, if the plaintiff were sued by the: defendant on the set-off claim, he can 'claim his cause of action in that suit as a set-off.”

The defence in this case:, we think, fails to meet either of these tests and, as the instructions asked for by the defendant were in conflict with the law as we have stated it, the court, we think,-,acted projuerly in rejecting its prayers, which rulingls of the court constitute the only exceptions in this case. Therefore, as we And no- errors in the ruling of the court below, the judgment appealed from will he affirmed.

Judgment affirmed, with cosits.