The note in suit was given by the plaintiff to the defendant on the twenty-seventh day of February, 1896, for one thousand one hundred and seventy-five dollars. The sum of four hundred and six dollars and sixty-five cents was paid thereon September 8, 1896. The plaintiff demands judgment for the amount of the note, after deducting therefrom the payment made. The defendant admits the making of the note, and pleads as a defense in substance as follows: That in January, 1896, he was the owner of a farm of two hundred and five acres of land in Bremer county; that he employed the plaintiff as agent to negotiate for him an *672exchange of bis farm for the business of Donlon & Saylor, of Waverly; that the business of that firm was the buying and selling of wagons, buggies, and farm machinery; that by the contract of agency the farm was to be exchanged at the price of forty-five dollars per acre for the cost price in Waverly of the stock of the firm, and the plaintiff was to receive as compensation what he could get for the farm in excess of forty-five dollars per acre; that thereafter the plaintiff represented that the firm would not allow more for the farm than the price specified, and that, relying upon that representation, the defendant agreed to pay the plaintiff one hundred dollars to effect a trade of the farm at that price; that at the time the plaintiff, without the knowledge of the defendant, was also acting as the agent of the firm, and had been authorized to exchange its stock in trade, at its cost price in Waverly, without any charge for good' will, for the farm at forty-five dollars per acre; that the plaintiff falsely represented to the firm that the defendant would not trade his farm at less than fifty dollars per acre, and falsely represented to the defendant that the firm would not trade its stock at its cost in Waverly for the farm at forty-five dollars, but in addition must have five hundred dollars for the good will of the business; that the defendant, 'relying upon such representations, permitted the plaintiff to make the trade on the basis of fifty dollars per acre for the land, and the cost of the stock in Waverly, and five hundred dollars in addition for the good will. The defendant pleads further that the plaintiff represented to him that the commission business of the J. I. Case Threshing-Machine Company at Waverly, which had been in the hands of Donlon & Saylor, was very profitable; that the plaintiff had great influence with the company, and would use it to procure the business for the defendant for two hundred and fifty dollars, although he had been offered that sum for his influence by one Gamer, then doing a commission business in Waverly; that the defendant relied upon said representations, and agreed to *673pay tbe plaintiff tbe sum stated for bis influence, but tbat ¡tbe representations were false, and were known to tbe plaintiff to be false when made. Tbe defendant further states tbat after tbe trade with Do-nlon & Saylor was completed the plaintiff presented bis claim against tbe defendant for •one hundred dollars for services rendered in making tbe trade, for one thousand and twenty-five dollars for tbe .amount received for tbe farm in excess of forty-five dollars per acre, and for two hundred and fifty dollars for influence used to procure tbe business of tbe threshing machine •company; tbat tbe defendant did not at tbat time have any knowledge that Donlon & Saylor had offered its property, without charge for good will, in exchange for the land at forty-five dollars per acre, and in ignorance of tbe fact paid the plaintiff two hundred dollars, and made the note in suit; that by reason of the facts stated the note is wholly without consideration. The defendant further states that the plaintiff transferred the note, before due, and in fraud of tbe rights of the defendant, to a bank, to secure the payment of four hundred dollars and interest, and that the defendant was compelled to pay to the bank on the note four hundred and six dollars and sixty-five cents. Judgment is asked against tbe plaintiff for that sum, and for the two hundred •dollars paid, with interest. The plaintiff, in reply, states that tbe note in suit was given after an adjustment of all the matters alleged in the answer, and in settlement of them. Tbe verdict and judgment were for tbe full amount which appeared to be due on the note.
1 I. Tbe reply contained a general denial, and was verified. Tbe plaintiff was asked on- cross-examination if he knew when he signed and verified the reply tbat tbe answer contained certain statements, which tbe evidence showed to be true, but which were denied by tbe reply- The purpose of the questions was to show that tbe witness bad made statements, when not a witness, in conflict with his testimony, but objections to the question *674were sustained. The plaintiff, in the absence of a showing to the contrary, is presumed to have known the contents of the reply which he verified, and of the answer to which it was directed, and both were formally introduced in evidence. If the answers sought had been permitted, they would merely have confirmed the presumption which then existed, and were immaterial. The court did not err in excluding them.
2 II. The note in suit and a check for two hundred dollars were given, after the exchange in question had been effected, in settlement of claims made by the plaintiff which are set out in the answer. These claims were disputed by the defendant before and at the time the note was given, and if the defendant then knew all material facts which affected the validity of the claim, and the settlement was fairly made, the note is valid, even though the claims for which it was given were of doubtful validity. Rowe v. Barnes, 101 Iowa, 302; French v. French, 84 Iowa, 655; Keefe v. Vogle, 36 Iowa, 87. But, to sustain 3 the ruling of the district court in directing a verdict, the facts essential to make the note valid must be so apparent from the evidence that reasonable men could not differ as to the facts which it established. McLeod v. Railway Co., 104 Iowa, 139, and authorities therein cited; 6-Enc. PI. & Prac. 683. The evidence for the plaintiff, if not disputed, would show beyond question that the note is valid, but we must examine the answer and testimony of the defendant to ascertain whether there was a dispute. The answer admits the making of the note, and avers that it was. given in payment of the claim in controversy. The testimony of Laird is in some respects self-contradictory, but tends strongly to sustain the alleged fraud in the transaction involved in the double agency. The defendant testified, respecting the settlement had when the note was given, that he disputed the claim of the plaintiff for the two hundred and fifty dollar item, alleging that Gamer had not *675offered bim that sum for the commission business; that the plaintiff then denied that he had said Gamer had made that offer; and that, after some discussion in regard to the matter, the defendant “was finally willing to give him the $250, and also the one hundred dollars. There was no dispute particularly as to the $100.” The testimony of the defendant shows that at the time the note was signed he learned that the plaintiff had, to some extent, acted in the transaction as the agent of Donlon & Saylor, but he did not know the particulars of the agency. In making the exchange, Donlon & Saylor received the cost of their stock in Waverly, and five hundred dollars in addition for the good will of the business, and the defendant was allowed fifty dollars per acre for his land. Saylor testified that during the latter part of the negotiations, which were carried on through Morey, the firm proposed to Morey to take the land at forty-five dollars per acre in exchange for the stock at its cost in Waverly, without any allowance for good will, but that Morey answered that the defendant wanted fifty dollars an acre, and that the offer would be useless. The defendant states positively and explicitly that he did not, when he transferred his land to Donlon & Saylor, nor when the note was made, have any knowledge of that offer. If the testimony of Saylor and the defendant respecting the offer was true, — and for the purpose of this appeal we must presume that it was, — Morey was guilty of a gross violation of his duty to both of his principals, for the plaintiff admits that he was authorized to exchange the land at forty-five dollars per acre. If he was guilty of the misconduct charged, it resulted in causing Donlon & Saylor to lose one thousand and twenty-five dollars, and the defendant five hundred dollars. The plaintiff denies the alleged misconduct, but we fail to discover any admission by tlie defendant, or any testimony on his part, which shows that he knew of the offer. -The fact that the 4 plaintiff acted as the agent of each party to the transaction did not relieve him of the duty of loyalty to *676each .principal, to the extent of bis employment. It is said .in Meebem Agency, section 454, tbat “loyalty to bis trust is tbe first duty wbicb tbe agent owes to bis principal. Without it perfect relation cannot exist;” and in section 455, tbatitbe agent must not put bimself into sncb relations tbat bis interests become antagonistic to those of bis principal. “The agent will not be permitted to serve two masters, without .the intelligent, consent of both.” See, also, Meebem Agency, section 67. • It is tbe duty of tbe agent to inform bis principal of facts material to bis interests wbicb are known to tbe agent. 1 Am.-& Eng. Enc. Law (2d ed.),-1069, These are elementary rules. -An agent who acts for two principals is .required to exercise .the utmost good faith to each, and, if' be*finds .that be cannot do so, be should at once take steps to end tbe agency. . If tbe testimony of tbe defendant is credible, be did not know tbat tbe plaintiff was acting for Donlon & Saylor until after tbe exchange was made, and at the time tbe note was signed; and there was nothing in tbe information be admits having received at tbat time wbicb should have charged him with knowledge of tbe ' alleged breach of trust. He still bad tbe right to presume, as against tbe plaintiff, tbat be bad been faithful in tbe discharge of bis duties. If tbe defendant is correct in bis testimony, there was no consideration for the note to an amount greater than tbe sum apparently due on it, and be is entitled to recover on bis counterclaim. Tbe evidence required tbat the issues presented by tbe pleadings be submitted to tbe jury. Tbe district court, therefore, erred in directing a verdict for tbe plaintiff, and its judgment is eeveesed.