after making the foregoing statement, delivered the opinion of the court.

In this accounting of the affairs of a special partnership between attorneys at law, the survivor claims compensation for services rendered after dissolution of. the firm.

Claims of this sort are not favored. They lead to efforts to prove a disparity between the partners, when the law implies equality. They necessitate a balancing of the value of the work of each in securing the business and earning the prófits, as well as a comparison of the time they may spend on the matters under consideration. Each partner is bound to devote himself to the firm’s business, and there is no implied obligation that for performing this duty he should be paid more than his proportionate share; of the gains. Neglect by one to do his part may be of such character as to justify a dissolution. But as long as the firm continues there is usually no deduction because one partner has not been as active as the other, The same is true where death prevents either of the part *270 ners from performing his contract. The law did not permit him to appoint a substitute, nor can his personal representative, no matter how well qualified, assist in winding up the affairs of the firm. Whether that be considered a right or duty, it is in either event cast on the survivor. In performing it he only carries out an obligation implied in the partnership relation, and is therefore entitled to no compensation for thus doing what he was bound to do and what would have been imposed on the other had the order of their death been different. To allow the survivor compensation wherever he continues the business would be to offer an inducement to delay the settlement which ought to be made as soon as possible.

To this general rule there are exceptions, where, under peculiar circumstances, the principles of equity entitle the survivor to compensation. Thayer v. Badger, Admr., 171 Massachusetts, 279. Thus, where by authority of law, or under a power in the will, the personal representative consents that the business may be continued by the survivor, the estate must pay for such additional services. Or, where without such consent, and at his own risk, the suryivor continues the business and makes a profit, the estate is bound to allow reasonable compensation if it elects to share in the gains thus made.

So where a member of a firm, by his voluntary act, dissolved the partnership the partner who continued the business was allowed compensation for performing services in which he had the right to have expected the continued assistance of the other. Extra compensation has. also been allowed in a few cases where, in order to realize on the assets, it was absolutely necessary for the survivor to continue the business beyond the reasonable time allowed for winding up its affairs. See Justice v. Lairy, 19 Ind. App. 272; Zell’s Appeal, 126 Pa. St. 329; Schenkl v. Dana, 118 Massachusetts, 236; Gray v. Hamil, 82 Georgia, 375; Beatty v. Wray, 19 Pa. St. 516; Cameron v. Francisco, *271 26 Oh. St. 190; Robinson v. Simmons, 146 Massachusetts, 167; Holmes v. Higgins, 1 Barn. & C. 74. Then, too, there is a suggestion in Denver v. Roane, 99 U. S. 355, 359, that there may be “ a different rule to cases of winding up partnerships ■ between lawyers and other professional men, where the profits of the firm are the result solely of professional skill and labor.”

This point is not involved and on it no ruling is made, because we are not dealing with questions between the administrator of the deceased and the surviving member of an ordinary law partnership, where the latter conducts to a conclusion the business of the firm, under circumstance, where there may be a right from time to time to call on the client for compensation for the value of services rendered and even though the case is finally lost. Here the agreement related solely to litigation in which compensation was for success and not for the value of services rendered. Such payment was to be in solido, and the partners agreed that the fees should be divided in solido.

Moyers insists, however, that the peculiar facts of this case bring him within the other exceptions pointed out above; that when Edmonds was adjudged a lunatic, in 1891,° the firm was dissolved; that with the knowledge of Cummings, who was acting as Edmonds’ committee, Moyers continued to prosecute the claims, paid out large sums for necessary expenses, and, in spite of probable failure, rendered valuable services, which finally earned the fees now to be divided. He claims that in equity and good conscience he should be paid reasonable compensation for this work, in which Edmonds rendered no assistance.

Moyers put in his services against the claims turned over to the firm by Edmonds, who stipulated that Moyers should represent him, and to that end “be associated in the prosecution of the claims as joint attorney of record.” Edmonds rendered little or no assistance and apparently was not expected to do so, for Moyers himself testified that *272 the contract was “an employment of me to attend to certain business for him in the Court of Claims in regard to certain cases. It might be styled a limited partnership. It was not a general partnership.” In prosecuting the claims and Collecting the money Moyers therefore only did what he contracted to do, and is not entitled to compensation beyond that set out in the agreement. That these services extended over a long period does not increase his share nor lessen Edmonds’ interest in the profits. Under the contract, Moyers agreed to prosecute the claims and could neither abandon them1 without just cause nor advise clients to put them in. the hands of others. If he did so, he is chargeable with the fees which should have'been earned by him . under the articles of partnership. Neither can Edmonds’ interest be diminished on the ground that the contract of employment by. the client was revoked by his insanity or death. They made no such objection and apparently acquiesced in Edimonds’ arrangement by which they were put in the hands of Moyers. The survivor cannot retain the business thus coming to him by virtue of a contract with Edmonds without accounting for his share of thé fees.

Moyers was charged with interest on the balance due from September 16, 1899, when the suit was filed, being the date on which the master found, he should have accounted with the complainant. Moyers contends that what, if anything, was due was uncertain; that "it required numerous references in order to properly state the account; that it was not liquidated until the final decree in November, 1908, when, for the first time, the true balance was ascertained, and hence that interest should only run from that date. Interest is allowed by way of damages for failure to pay money when it is due and frequently is not allowed except from the time the amount to be paid has been definitely ascertained.; But there are many cases in which interest is charged from Sl prior date. Here the de *273 fendant at first promised to make a statement, then contended, without substantial support, that the partnership was' dissolved because Edmonds had transferred his interest in the fees. He resisted the accounting, failed to produce books, vouchers and statements proper to be kept by a surviving partner. As the Court of Appeals said, the delay and difficulty in reaching a conclusion was largely due to his failure to keep proper books. Under the circumstances the master properly allowed interest from the date the bill was filed. Spalding v. Moser, 161 U. S. 375; Nashua & Lowell R. Corp. v. Boston &c. R. R., 61 Fed. Rep. 237, 247. Moyers did not except to this method of calculating interest; on the contrary, he obtained a ruling that on the same basis he should be allowed interest from 1892 on advances then made by him to Edmonds. He cannot now complain that the account was stated in accordance with a rule in which he acquiesced, and the benefit of which he invoked.

In the last assignment, it is alleged that the court erred in not dismissing the bill because of complainant’s laches in filing it. It is contended that after Cummings was appointed committee of Edmonds in 1891, he knew of the contract of special partnérship and that Moyers was prosecuting these claims, and not only made no demand for a settlement, but permitted Moyers to do all the work, incur all of the expense, and run all of the risks, without notifying him. that Edmonds’ representative would claim one-half of the profits. It is urged that such conduct was inequitable and that to wait until eight years before filing proceedings constituted laches which requires a dismissal of the bill. We find nothing in the facts or in.the relation of the parties that made it incumbent on Cummings to warn Moyers of Edmonds’ claim, even if Cummings had the full knowledge of all the facts which is necessary to raise any such obligation. Edmonds’ right was rooted in the contract, an£ has only been enforced in pursuance *274 of its terms. Cummings had no title to Edmonds’ property, but was a mere curator, with limited powers. He could not have sold Edmonds’ interest in these claims to Moyers or anyone else without an order of court. For a much stronger reason he could not accomplish the same result and destroy Edmonds’ right therein by a mere non-action. The fees were not collected until the spring of 1899, and within four months thereafter the bill for an accounting was filed.

The decree is

Affirmed.