The complaint of the appellee alleged that the appellants were copartners, doing business nnder the firm name of The Wabash Cattle Company; that on the 27th day of June, 1897, the defendants delivered to Mrs. M. J. Mills, at or near the city of Denver, 392 cattle, under an agreement between them and Mrs. Mills that the latter should drive the cattle into the county of Grand, and turn them upon the range in that county, and that, in the fall of 1897, and at the *9time of marketing certain cattle described in a chattel mortgage theretofore given by Mrs. Mills to the defendants, she should have the privilege of buying the cattle first mentioned at the price of twenty dollars per head, of which five dollars should be paid in cash, and the residue in a note secured by a chattel mortgage on the cattle, or if Mrs. Mills should decline that privilege, and the cattle should be sold to other persons for cash, then she should receive the excess realized for the cattle over twenty dollars per head, but if the sale to such other persons should be on time, then she should receive, in cash, one-half of such excess; that she fully performed her agreement; that on the 6th day of November, 1897, the defendants sold 369 of the cattle, on time, for $9,257.87; that Mrs. Mills was then indebted to the plaintiff in the sum of $3,169.30 on a promissory note made by her; that on the 22d day of November, 1897, for the purpose of securing the payment of that note, she assigned to the plaintiff all her interest in her agreement with the defendants, and the profits accruing to her from the agreement; that on the 23d day of November, 1897, the plaintiff notified the defendants of the assignment, and about the same time, for the purpose of a settlement of Mrs. Mills’ claim under the agreement, proposed to them that they should deliver to it the notes and securities taken by them in payment for the cattle, and that it would pay them for those notes and securities the aggregate sum to which twenty dollars per head for the cattle would amount, which offer was then accepted by them; that they were not then in possession of such notes and securities, but that afterwards, when they had come into such possession, the plaintiff demanded of the defendants, and they' refused, the performance of their agreement with it, the reason given for the refusal being that the contract with Mrs. Mills was invalid.
*10The answer of the defendants admitted the sale of the cattle as alleged in the complaint; the offer of the plaintiff to pay them twenty dollars per head for the cattle; its demand on them for the securities, and their refusal to receive the money or deliver the securities ; and admitted by not denying that the reason for their refusal was that the contract with Mills was invalid. All the other allegations of the complaint were denied.
At the trial the plaintiff proved the assignment, and produced testimony that on the 24th day of November, 1897, there was a meeting between Willis M. Marshall, cashier of the plaintiff, and C. O. Howe, one of the defendants, at which an agreement was reached between Marshall and Howe that in settlement of the claim of Mrs. Mills, the bank would carry out the contract of Mrs. Mills so as to make the salé a sale for cash, and would pay the defendants a sum, in cash, equal to twenty dollars per head for the cattle, and the defendants should turn over to the plaintiff the notes and securities they had received for the cattle, the notes to be assigned without recourse. This testimony was contradicted by the witnesses for the defendants. The verdict was for the plaintiff, and if the evidence was properly submitted to the jury, and there was no prejudicial error at the trial, their opinion upon the facts concludes us.
A number of offers were made by the defendants to prove that the contract between Mrs. Mills and them was different from that alleged by the plaintiff, and that at the time of the assignment to the plaintiff, the defendants owed her nothing; but the court refused to receive the evidence. It is urged that the refusal was error. The suit was upon the alleged agreement between the plaintiff and the defendants, and not upon that between Mrs. Mills and the defendants. Her claim under the latter agreement had *11been assigned to tbe plaintiff; as assignee, tbe plaintiff approached the defendants for a settlement of that claim; the defendants accepted the plaintiff’s proposition, and agreed, in consideration of its promise to pay them a certain snm of money, to turn over to it certain notes and securities; they afterwards refused to perform their agreement. The contract between Mrs. Mills and the defendants was supplanted and satisfied by a new contract between the plaintiff and the defendants; the terms and conditions of the first contract were set forth in the complaint, not for the purpose of a recovery upon that contract, but for the purpose of description, so as to show what contract it was that was assigned to the plaintiff and afterwards displaced by the new agreement. By the settlement they recognized the claim under the agreement with Mrs. Mills as valid and subsisting, and the settlement can not be impeached, except by proof of fraud or mistake. All questions concerning the validity and terms of the contract with Mrs. Mills, were adjusted by the parties- when they made their settlement. The purpose of this suit is to enforce that settlement. No proof was offered that it was accomplished without a full knowledge, on the part of the defendants, of all the facts, or that they were influenced by any unfair practices of the plaintiff; and .the evidence, by which it was sought to go behind the settlement and open up questions which the parties themselves had adjusted, was properly rejected.
The defendants complain that the court refused to receive, in evidence, a ’ conversation between Mr. Marshall, the plaintiff’s cashier, and Mr. Howe, some time in November, which, it was asserted, related to the debt owing to the plaintiff by Mrs. Mills. This was not the conversation, or part of the conversation, which resulted in the agreement between the plaintiff and the defendants. What time in November it *12took place, does not appear. Bnt inferentially it occurred before tbe assignment by Mrs. Mills to tbe plaintiff. If so, the plaintiff was not then tbe owner of her claim; and in wbat respect tbe conversation was material or relevant, or could be made material or relevant, to tbe issue, we are unable to conjecture. If it occurred after tbe agreementbetweentheplaintiff and tbe defendants was concluded, it was certainly inadmissible. Tbe transaction in wbicb tbe cashier represented tbe bank being closed, the latter was not bound by bis utterances. Tbe declarations or acts of an agent are not admissible against bis principal, unless they are made with reference to business in wbicb be is authorized to act, and at tbe time of its transaction. — Greénleaf on Evidence, § 131; Wharton on Agency, § 162; Tootle v. Cook, 4 Colo. App. 111.
There was nothing in tbe question propounded to indicate that tbe answer would, or might, be relevant or material, and as counsel made no statement of wbat be proposed to prove, and offered no explanation from wbicb it could appear that tbe evidence might become material, its exclusion was not error.—Farwell Co. v. McGraw, 13 Colo. App. 467.
Tbe court instructed tbe jury that if they should find for tbe plaintiff, they should estimate its damages at $1,877.87. Counsel say that tbe amount of recovery was for tbe determination of tbe jury, and that it was error to take tbe question from them. Tbe answer admitted tbe sale of 369 bead of cattle for $9,257.87. A verdict for tbe plaintiff meant that tbe plaintiff was entitled to the difference between this sum of $9,257.87 and $7,380.00, tbe price of tbe cattle at twenty dollars per bead. Wbat that difference was, was mere matter of computation, and was not a question for tbe jury at all. It was exactly $1,-877.87, and the court properly so told tbe jury.
Of tbe remaining instructions, tbe objection to *13one is that it said to the jury that allegations of the complaint were admitted by the answer which that pleading denied. Sneh was not the fact. Nothing which was not explicitly admitted, was stated in the instruction to have been admitted. The same objection is made to the other, and is equally foundation-less. To the latter, however, an additional objection is made that it assumed that the contract between the plaintiff and the defendants was not within the statute of frauds. The defendants offered an instruction, which was refused, that the agreement was within the statute of frauds. The argument on both sides deals largely with the question whether the agreement was obnoxious to that statute; and, after disposing of some other matters, we shall address ourselves to that question.
The defendants asked an instruction that if the plaintiff was entitled to a recovery, the measure of his damages was the difference between the value of the securities to be delivered, and the price of the cattle at twenty dollars per head. Upon the facts, the presumption is that the securities were worth their face.—Fenton v. Perkins, 3 Mo. 23; Davies v. Stevenson, 59 Kan. 648; Thayer v. Manley, 73 N. Y. 305; see also Hallack L. & M. Co. v. Gray, 19 Colo. 149.
If the instruction had so stated, it would have been unassailable; but it also would have been unhecessary, because the court had already, by computation, ascertained the exact difference between the face value of the securities and the price of the cattle, and directed the jury, if they should find for the plaintiff, to estimate his damages at the sum so ascertained. The remaining request was properly denied, because it was substantially embraced in another instruction.
It is’ contended that a tender by the plaintiff of the amount he had agreed to pay the defendants was *14necessary to enable him to maintain his action. The complaint alleged that the plaintiff demanded the securities from the defendants, and offered to pay them the money to which the cattle, at twenty dollars per head, would amount, but they refused to comply with the demand, declaring that the contract with Mills was invalid, and they would refuse to recognize any of its stipulations. The answer expressly admitted the demand, the offer to pay, and the refusal to comply with the demand; but it denied any agreement of any kind with the plaintiff. The defendants are hardly in a position to object that there was no tender; and upon the admitted facts, a tender would have been useless. It certainly was unnecessary.—Smith v. Lewis, 26 Conn. 109.
Whether the agreement between the plaintiff and the defendants should have been in writing or not, is a question of which no decision is now necessary. The evidence was suffered to go to the jury without objection, and, ordinarily, where one party acquiesces in the introduction by the other of his evidence, he will not be afterwards heard to complain of the result. But for another reason the question whether the agreement was in writing, can not be raised by the defendants. As it did not appear from the complaint whether the agreement was in writing or not, it was incumbent upon the defendants, if they desired to avail themselves of the statute, to specially plead it. Such is the rule here, whatever may be the practice elsewhere.—Hunt v. Hayt, 10 Colo. 278; Tynon v. Despain, 22 Colo. 240.
It was not pleaded, and it would have been gross error to give the instruction which the defendants requested respecting the statute, or to sustain any of their objections, in whatever form made, based upon the statute.
Let the judgment be affirmed. Affirmed.