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¶2I. The defendant claims that the findings of the court are not supported by the proof, and, upon an assignment of errors to this effect, asks us to review the evidence. The main point of contest upon the findings of the court relates to the conclusion that the certificates were not received in payment of defendant’s indebtedness, growing out of the purchase of the land.
¶3It is a doctrine recognized by this court, that the transfer of a note or bill of a third party, on account of an existing debt, in the absence of an agreement that it shall be taken in absolute payment, operates only as a conditional payment, and does not defeat recovery upon the original indebtedness in case of the non-payment of the *409paper of the third party. Kephart v. Butcher, 17 Iowa, 240 ; Gower v. Halloway, 13 id. 154; McLaren v. Hall, 26 id. 297; Farwell v. Salpaugh, 32 id. 582. This rule is not denied by defendants’ counsel, but they seek to avoid its application here by attempting to show, from the evidence, that the indebtedness upon which the certificates of deposit were received was not pre-existing, but was, in fact, contemporaneous with the transaction; in other words, that these instruments were transferred in payment for the land, the purchase thereof and transfer oí the paper being simultaneous acts, and parts of one transaction. The fact that the bargain for the land was made on the 4th of March, and the payment was to be made on the 15th, is regarded by counsel as evidence that the transaction is to be regarded as a sale upon a payment to be made in hand; that the payment was but the consummation of the transaction, the completion of the negotiation resulting in the sale. It is claimed, too, that the $400 paid upon the day of the bargain was not in fact payment for the land, but was considered by the parties in the nature of a deposit, to be forfeited in case the contract was not performed by defendant. It is also urged that defendant received neither the possession nor title to the land, and was not entitled to either except upon payment or tender of payment for the land. These are the first reasons assigned by counsel for holding that there existed no prior debt upon which the certificates were received. In reply it may be said that the fact is undisputed that defendant had executed to plaintiff his promissory note; that it was a valid instrument, and executed upon a sufficient consideration, and could have been enforced against defendant either in the hands of plaintiff or a transferee; that upon this note defendant was indebted to plaintiff. As a matter of fact, there was an indebtedness, created on the 4th day of March, from defendant to plaintiff. The circumstances, that the conveyances for the land had not been executed, *410or the possession delivered, and that a sum of money paid at the time of the contract was intended as a forfeit, do not establish the fact that no prior debt existed on the 13th of March, when the certificates were transferred. These circumstances are all consistent with the existence of a debt contracted on the 4th of March. The transaction is simple and of very common occurrence. It amounts to this: Defendant purchased the land of plaintiff; he executed his note for the purchase-money; to secure its payment the title and possession of the land was retained by plaintiffj whose bond was intended as an embodiment of the contract, and an obligation upon plaintiff to convey the land upon receiving the amount of deféndant’s note. At the completion of these arrangements defendant held the equitable title of the land, and owed plaintiff $8,000, as evidenced by the note. The fact that this indebtedness of defendant to plaintiff was of recent creation, having been contracted but ten days prior, is no ground for concluding that the transaction does not amount to evidence of the existence of a prior debt. When the creation of the debt is complete, from that moment the indebtedness exists, and if, by its terms, it is to run but ten days, it must .be regarded in the same light as though it had existed a greater time. No reason can be given why a debt contracted but a short time shall, in the application of the rule of law just announced, be regarded differently from one of a longer standing.
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¶5III. Counsel announcing the-rule, which it is not necessary to examine here, that a transfer of the note of a third party for a debt contracted at the time of the transaction, does, in the absence of evidence of a contrary intent, operate as a satisfaction, claim that the indebtedness in this case was contemporaneous with the transfer of the certificate, and is, therefore, satisfied. "We have just pointed out on’ reasons for sustaining the finding of the court to the effect that the debt of defendant' to plaintiff existed before the transfer of the certificate. This position of counsel demands no further attention.
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¶7*412Upon the question here presented, whether the absence of defendant’s indorsement is evidence that they were received in absolute payment, there is very great conflict and confusion in the authorities. It is impossible to reconcile them, and difficult to form an opinion as to which view of the question is supported by the weight of the decisions. The cases cited in the notes in 2 Parsons on Notes and Bills, pp. 158, 161, 217, fairly exhibit the uncertainty in which the authorities leave the question.
¶8Upon principle, we are unable to hold that the transfer of a bill or note, without the indorsement of the debtor, will operate to discharge the debt. The distinction between such a case, and one where the instrument is indorsed by the debtor, which is held not to operate as payment, are not such as in our opinion justify attributing different effects to the two acts of the debtor. The only difference in fact in the cases is, that in the last the debtor becomes bound as an indorser upon the instrument transferred. Upon this contract, he is liable to the creditor. In the first case there is no such liability. The reasons, so far as we have observed, that are given for holding the original debt to stand unpaid, in cases involving the point now under consideration, is that the indorsement operates to keep alive the debtor’s obligation to the creditor. Uis obligation upon the original debt, it is said, is suspended by the new contract of indorsement, but, upon the dishonor of the last instrument, his obligation to pay the first debt revives. If the doctrine depended upon the existence of a binding obligation between the debtor and creditor to pay the amount of the original debt, this reasoning would support the view contended for. But, as the statement of this argument itself shows, it. finds no support in this thought. It is conceded, by the terms above used in stating the positions assumed, that the original debt, by the dishonor of the second instrument, is revived. It was then evidently never discharged. If the debt was paid the con*413tract upon which, it existed was performed. The subsequent default of other parties upon another contract could not have had the effect to revive a discharged contract — restore an indebtedness that had been paid. But, in our opinion, the doctrine which declares that one indorsing the bill of another, given upon a prior indebtedness, is liable thereon, if the bill be not paid, is founded upon a different reason. It is this: the law requires the debtor to discharge the obligation imposed upon him, by the payment of the debt. Until this be done he is bound upon his contract. The transfer by indorsement of a note of a third person does not discharge this legal obligation resting upon the debtor to pay the debt, unless the note indorsed be paid. If it be not paid his obligation has not been performed. The debt remains unpaid. The act of transferring the note is simply a means adopted to secure the payment of the debt; if it fail the debt still subsists. The creditor, by accepting the note, may well be presumed' to consent to a suspension of the remedy upon the original debt until the dishonor of the instrument he receives. This seems to be the foundation of the doctrine as announced in Clark v. Mundell, 1 Salkeld, 124, and Ward v. Evans, 2 Lord Raymond, 528. In the last case Lord Holt says: “ When such a note (the note of a third person) is given in payment, it is always intended to be taken on this condition, to be payment, if the money thereon be paid in a convenient time.”
¶9If the doctrine be founded upon these reasons it is equally applicable to the case of a note given in payment without the indorsement of the debtor. The obligation rests upon the debtor to pay the debt. If this obligation is not discharged by another contract, whereby he becomes bound as an indorser, surely it will not be, in the absence of such a contract. - In the first case, as we have seen, the indorsement does not keep alive the indebtedness; why should it be extinguished because there is no *414indorsement? If the doctrine is not based upon the fact of the indorsement, then the indorsement is not necessary to support it, and it is therefore applicable to cases where the debtor transfers paper by delivery without indorsement, unless forbidden by other principles. It really appears that there are stronger reasons for applying the doctrine to cases where the creditor fails to indorse the paper, received upon the debt, than when it is transferred by indorsement. If such paper, according to Lord Holt, is not payment until it be really paid, and the thought is founded in principles of justice and equity, the debtor ought not to be discharged upon the original contract on account of paper received thereon upon which the debtor is not bound. In such a case if the transaction amounts to payment the creditor loses all recourse upon the debtor. The very fact that the debtor is not bound upon the paper given by him on account of the debt is a reason why his obligation upon the original contract should be preserved. In that view he will be unable to escape the payment of his debt; to secure this end the law should come to the aid of justice and equity.
¶10It will, of course, be understood that the agreement of the parties, to the effect that paper of any description taken upon a prior debt shall be regarded as payment, will be enforced by the law. It will also be readily seen that these views do not apply to bank notes. They pass from hand to hand as money, and, for that reason, payment therewith discharges the original debt.
¶11V. The certificates of deposit in question were payable in currency. They are not, therefore, to be considered negotiable paper. Huse v. Hamblin, 29 Iowa, 501. This fact has been made the foundation of an argument by defendant’s counsel in support of their position that the transaction amounted to absolute payment of plaintiff’s debt. In our opinion the questions above discussed are unaffected by the non-negotiable character of the paper. *415This opinion is not expressed without doubts. We reach our conclusion upon this course of reasoning. Non-negotiable paper differs not from negotiable in the fact that each is the evidence of the debt for which it is issued. The paper is but evidence of the debt — nothing more. The transfer of the debt in each case is effected by what is usually called the transfer of the paper. Now in the case of the transfer of non-negotiable paper, the debt is the thing which the transferee is to receive.- If it be not paid he receives nothing — in fact it cannot be said that he receives that which was transferred to him until it be paid. The same is true of negotiable paper. In the case of negotiable paper the foundation of the doctrine that its transfer to a creditor will not, in the absence of an agreement, operate to discharge the debt, is founded, as we have shown above, on the thought that the debtor ought not to be discharged until the debt be actually paid. This is not done until the paper transferred is paid. Now the very same reason which supports the rule in the case of negotiable paper will make it applicable to transactions where nonnegotiable instruments are given upon prior debts.
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¶14Collections of this kind are uniformly made through the hanks, and by them are sent to their correspondents in cities, which are the money centers of the particular locality of the party or maker of the paper from whom payment is sought. The certificates in question were received by plaintiff in Cass county. He was not a banker. The course of business would not require him to send the instruments directly to Buffalo, where the makers live, for collection. It would be sufficient if he should send the instruments to bankers where he was in the habit of doing business, in Council Bluffs or Des Moines, by them to be forwarded to New Tork, where all such paper is usually sent, that from that city it might be sent for collection to Buffalo. If it should not be sent off by mail on the day it was received, but the succeeding day, it would not be out of the usual course of business. Now, the plaintiff pursued such a course with the certificates as to bring them within these rules. Upon failure of the drawers of the certificates to pay the same, notice was given to defendant in a manner and at a time that comply with the requirements of the commercial law. This cer*418tainly is sufficient. The evidence shows that plaintiff pursued such a course with the certificates as accords with the general business customs of the country. He could be required to exercise no greater diligence. But we all agree in the view that defendant certainly can claim no greater diligence on the part of plaintiff, than may be demanded by an indorser of like paper. The record shows that an action was brought by plaintiff against the indorsers of the certificates, in which an issue was made as to the diligence of plaintiff, in presenting the paper and giving notice of its non-payment, and tried upon the same evidence by which defendant in this case seeks to establish want of diligence, and a verdict and judgment had for plaintiff. That case was brought to this court (Huse v. Hamblin, 29 Iowa, 501), and it was held therein that the paper sued on was non-negotiable, and that the indorsers were liable to the holder without proof of presentation and notice of non-payment. But it appears that the instruments were presented in due time, and the failure of the makers to pay being promptly communicated to plaintiff, he immediately, on the 28th day of March, notified defendant of that fact, and that plaintiff would look to him for payment. Now here is diligence sufficient to hold an indorser or guarantor liable for the payment of the instruments. It cannot be possible that defendant, standing in the position he occupies, is entitled to demand greater diligence than such parties to the instruments.
¶15IX. It is insisted that, as plaintiff held the paper until the commencement of this suit, January 17, 1871, without proceeding against the makers, this discharges defendant. But, as we have above observed, plaintiff was not required to bring an action against them. Defendant was notified of the non-payment of the certificates March 28, -1870, and it was his duty thereupon to see that the paper was enforced against the makers. It did not rest upon plaintiff to do so. The fact that plaintiff retained the instruments in his *419possession, and prosecuted the indorsers thereon, is not evidence of negligence nor is it a just ground of complaint by. defendant. On the contrary, the proceeding was for his benefit. Had he desired to proceed against the makers ; he could have demanded the certificates from the plaintiff, which he did not do, who would have been required to surrender them. The judgment against the indorsers, together with the certificates, the plaintiff upon the trial offered to transfer to defendant. In all this we can discover nothing that may, with propriety, be charged against plaintiff as negligence, and it is not made to appear that defendant was in the least degree prejudiced by any of these things.
¶16Finally, in our opinion, the findings of fact by the court below are sufficiently supported by the evidence, and the conclusions of law thereon sustain the judgment rendered against defendant.
¶17X. The judgment allows interest at the rate of ten per cent. Counsel of defendant claim that it should be six per cent, as the action is not upon the note 'or any contract; in writing fixing the interest at the rate allowed. But counsel misapprehend the facts upon which they base their position. The action is brought to recover the indebtedness of defendant, on account of the purchase of the land. The contract upon which the indebtedness accrued was embodied in the note and bond of plaintiff, and both expressly provide for interest at ten per centum per annum. In these writings defendant agreed to pay the interest allowed. "We have held that the debt remains unpaid, that the con-. tract has not been performed, and that recovery may be . had in this action thereon. Plaintiff must he allowed the interest agreed upon. It is true that the action is not brought upon the note, but it is brought to recover the present indebtedness as determined by the contract, which is the sum remaining unpaid, and interest thereon, at the rate of ten per cent per annum.
¶18Affirmed.