2 FEDERAL Rsronrrsa. 5. SAME—·APPI.ICl’\TION or INTEREST ON Coupons. Where the bonds are coupon bonds, and such an account has not been kept for a series of years, upon an accounting the holders of coupons are entitled to have the interest earned during each interest period applied upon the cou- pons representing that period. ‘ 6. SAMs—AocouNT11vo. Mortgage and bonds construed. and manner of accounting directed. In Equity. Anderson (15 Man, for complainant. . Dillon dr Swayne, for defendant. ~ Wanmos, J. The complainant is the owner of coupons and scrip certificates representing $43,462 of unpaid interest owing by the de- fendant the Missouri, Kansas & Texas Railway Company upon bonds secured by an income mortgage created by it April 1, 1876. He has Bled this bill on behalf of himself, and all other owners of coupons and certihcates who may desire to join, to compel an accounting by the railway company of its earnings and operating expenses since the making of the mortgage. The bill prays for an injunction against the appropriation of the earnings contrary to the rights of the income ‘ bondholders, and for a decree for the payment of the income appli- cable to the interest. The defendant the Union Trust Company of New York is the trustee named in the income mortgage, and the bill avers that this corporation is made a defendant because it asserts · that no duty is imposed on it in respect to the matters involved in the suit, and has refused to bring suit after request on behalf of the com- plainant and others similarly situated. No relief is sought against the trustee, and it has not answered or appeared in the suit. " ` The question is presented preliminarily to a consideration of the case upon its merits whether this court has jurisdiction, the com- plainant and the defendant the Union Trust Company (a New York corporation) both being citizens of this state. The Union Trust Com- pany is a necessary party to the suit, and this has been so determined by this court when the case was before it on a former occasion upon a demurrer to the bill of complaint and the Union Trust Company. No relief is sought against this defendant by the complainant. Its in- terests and those of the complainant are not adverse, but are identi- cal. In Pacific R. R. v. Ketchum, 101 U. S. 289, 298, the court held that the trustees of a mortgage which was being foreclosed at the suit of bondholders might properly be arranged on the same side of the controversy about the foreclosure with the complainants, although _ they were nominal defendants, because there was no antagonism be- tween them and the complainants, and no relief was asked against them. To the same effect is the case of Arapahoe Co. v. Kansas Pac. Ry. C0., 4 Dill. 27 7. These authorities are decisive of the juris- dictional question. Upon the merits, the questions in the case are (1) whether the mortgagor has failed to apply net or surplus earnings to the payment