This action was commenced in the year 1855, and the complaint contains three counts, all in the ordinary common law form; the first upon a quantum meruit for work done and materials furnished by the plaintiff in and about the grading, planking, and bridging of Powell street in said city. Second—The ordinary count for work and labor done and materials furnished, for which, it is alleged, the defendant promised to pay the sum of one hundred and twenty-five thousand dollars. Third—Upon an account stated. The answer contains: First—A general denial. Second—An allegation that the plaintiff’s cause of action, if any, “ arises from and is founded upon a certain written contract, or alleged contract, purporting to be made on or about the 20th *298day of September, 1853, by and between the City of San Francisco, through William Divier, Street Commissioner of the City of San Francisco, of the first part, and the said J. L. Wetmore, plaintiff, of the second part, and providing for the grading of Powell street, from Washington street to its intersection with Bay street.”' It is then averred that in December, 1853, Wetmore executed and delivered, under his hand and seal, an assignment of the contract of the firm of Lucas, Turner & Co., and that said firm had commenced an action on the contract against this defendant, which action was pending when the answer was filed. At the trial the written contract between the plaintiff and the Street Commissioner was put in evidence, together with the assignment from the plaintiff to Lucas, Turner & Co., which was indorsed on the written contract, and is, in form, an absolute, unconditional assignment of the contract “ and all moneys hereafter due, payable, or to be paid therefrom, and the full benefit, profit, and advantage thereof.” There was also put in evidence a written order, bearing even date with the assignment, and addressed by the plaintiff to the Collector of Street Assessments, directing him to pay all the money collected from property owners, along the line of the proposed improvements, to Lucas, Turner & Co. This order was accepted by the Collector; and it appeared at the trial that in October, 1855, Lucas, Turner & Co. commenced an action against the city to recover the money due to the plaintiff for the improvement of the street.
This action was twice brought into this Court on appeal; and the case is reported first in 7 Cal. 463, and afterwards in 28 id. 591. Ultimately Lucas, Turner & Co. recovered a final judgment against the city for about the sum of forty-seven thousand dollars; and the defendant insists that the assignment to them and the judgment recovered by them conclude the plaintiff, and bar any right of action he might otherwise have had. It is claimed, in support of this propo*299sition, that whatever rights the plaintiff acquired against the city, whether under the written contract or otherwise, passed to Lucas, Turner & Co. by virtue of the assignment; that the assignment was absolute in form and vested in them as against the city a right of action for the whole demand as fully as the plaintiff himself Ivould have had if there had been no assignment; that having brought their suit for the whole amount, and having recovered judgment for a portion of it, neither they nor the plaintiff can maintain an action for the residue; that the demand was indivisible and could not be split up into several portions, so that an action might be maintained on each. On the other hand, the plaintiff contends: First, that the contract was assigned as collateral security only, and that the debt due from the plaintiff' to Lucas, Turner & Co. having been fully paid, they have no further interest in the fund; second, that whilst the general rule is that a demand cannot be split up and a separate action maintained on each parcel, yet if the debtor assents to the division he cannot afterwards object to it, and it is claimed that by issuing warrants for fractional parts of the plaintiff’s demand the city assented to the partition in this case; third, that when a creditor assigns a specific portion of his demand to a third person, this does not preclude him from maintaining an action for the residue; and it is further claimed that no portion of plaintiff’s demand was in fact assigned- to Lucas, Turner & Co., except that portion represented by the warrants delivered to them, and for which they obtained judgment; fourth, that the defendant cannot rely on this defense, because it is not within the issues made by the pleadings. If the last point is tenable it will be unnecessary to notice the others, and it will, therefore, be first considered. In each count of the complaint there is an averment that on the 27th day of April, 1854, the defendant was indebted to the plaintiff in a specified sum and promised to pay it, but has therein made default. The precise day was *300not material and need not have been proven; but the answer contained a general denial, which made it incumbent on the plaintiff' to prove a subsisting indebtedness from the defendant to plaintiff' at the time of the institution of the suit. Under this denial it would have been competent for the defendant to prove payment. (Freisch v. Caler, 21 Cal. 14; Brown v. Orr, 29 Cal. 120; Davanay v. Eggenhoff, 43 Cal. 395.) For the same reason it was competent to show that the plaintiff had transferred the demand, and that the defendant therefore was not indebted to him. The proof on this point was therefore within the issue. Uor is it material whether the assignment from the plaintiff to Lucas, Turner & Co. was intended, as between themselves, to be only as collateral uecurity, and not absolute. Being absolute and unconditional in form, it empowered Lucas, Turner & Co. to maintain an a ctiou for the whole amount due from the city; and such was the nature of their suit. It would not have been competent for the defendant in that action to aver and prove that the assignment, though absolute on its face, was in fact 3 ntended only as collateral security for a debt. So long, at least, as the debt remained unpaid, the assignee was entitled to maintain an action for the whole sum due from the city. The legal title to the whole was vested in the assignee, with a right of action as complete as the assignor himself had or might thereafter have become entitled to. If, therefore, the assignment was sufficiently comprehensive in its terms to convey to Lucas, Turner & Co. the whole of the plaintiff’s demand against the city, whether founded on the written contract or otherwise, in that event the judgment which they recovered must have precisely the same effect as an estoppel—as though it had been recovered by the plaintiff himself. In other words, if Lucas, Turner & Co. were authorized under the assignment to recover the whole sum then due or to become due from the city to the plaintiff, a judgment in their favor *301would operate as an estoppel, precisely to the same extent as though it had been recovered by the plaintiff himself. This is too plain to merit further discussion. But the plaintiff insists that nothing was assigned except the written contract on the back of which the assignment was written; and he contends that this paper does not constitute a valid written contract between himself and the city. He claims, therefore, that nothing passed to Lucas, Turner & Co. by that assignment; but admits that his delivery to them of certain of the warrants issued by the city on account of the work operated as an equitable assignment pro tanto, and authorized them to recover from the city so much of the contract price as was represented by the warrants. But this view of the scope and legal effect of the assignment is too narrow. If it be conceded that the written contract was void, for want of authority in the Street Commissioner to enter into it, nevertheless the plaintiff’s theory is, that no written contract was necessary; that the publication of the notice that it was the intention of the Common Council to improve the street, and the inviting of proposals for the work, and the accepting of the plaintiff’s proposals, and of the improvement after it was made, estop the defendant from denying that there was a valid contract, substantially the same as that embodied in the written instrument.
If we accept this as the correct theory, it will aid us in interpreting the assignment to Lucas, Turner & Co. The paper purporting to be a written contract was executed on the twentieth September, and the assignment on the 10th December, 1853. Very little of the work probably was performed at the last named date, and we must interpret the assignment in the light of the surrounding facts, and give effect to it accordingly. Having borrowed from Lucas, Turner & Co. the sum of thirty-eight thousand dollars, the plaintiff’ proposed to secure the debt by assigning to them his contract with the city, which was probably then in pro*302cess of being performed. Under the belief, doubtless, that the written contract entered into with the Street Commissioner was a valid instrument, and obligatory on the city, he indorsed on the back of it the assignment to Lucas, Turner & Co., whereby he assigned and transferred to them “ all the said recited articles of agreement, on the other side thereof (hereof?) written, and all moneys hereafter clue, payable, or to be paid therefrom, and the full benefit, profit, and advantage thereof.” Considering the circumstances under which, and the purposes for which, the assignment was made, I think it was clearly the intention of the plaintiff, by the assignment, to transfer to Lucas, Turner & Co. the right to collect, demand, and receive all moneys due, or thereafter to become due, to him, for the 'work specified in the contract, and the language of the assignment is sufficiently comprehensive to express this intention. If we should hold that the assignment was a nullity, and passed nothing, because the written instrument on which it was indorsed was unauthorized by law, and, therefore, not obligatory, we should do violence to the obvious intention of the parties.
I am, therefore, of opinion that Lucas, Turner & Co. were entitled, as assignees, to sue for and recover the whole sum, if any, due to the plaintiff at the date of the assignment, or which might thereafter become due to him, for performing the work specified in the written contract. Being thus substituted to the plaintiff’s right of action for the whole sum, if any, which he was entitled to demand, the judgment which they recovered will have the same effect as an estoppel, as though it had been recovered by the plaintiff himself. The rule invoked by the plaintiff", that if a specific portion of a demand be assigned, this will not preclude the assignor from maintaining an action for the residue, has no application to this case, as we have just seen that the whole demand was assigned to Lucas, Turner & Co. iTor can the suggestion that by issuing its warrants for different sums, as *303the work progressed, the defendant consented to the splitting up of the plaintiff’s demand, avail him in this action, for the reason that he did not attempt to split up his demand, but assigned the whole of it to Lucas, Turner & Co., who brought their action accordingly to recover the whole. They recovered judgment, however, only for the sum of forty-seven thousand dollars, or thereabouts, and the plaintiff now seeks to recover the residue. But no principle is better settled than that in an action to recover a gross sum, alleged to be due under a contract, if the plaintiff recover judgment for a less sum than he claimed, he cannot after-wards maintain an action for the residue. If the rule were otherwise there would be no end to the' litigation. For these reasons I think the judgment ought to be affirmed, and it is, therefore, unnecessary to notice the other points discussed by counsel.
Judgment affirmed.
Mr. Justice Niles did not express an opinion.