Whether, technically, the court erred in refusing to try the case without a jury, and we do not intend to suggest that it did so err, such, error was not harmful. The defendant was entitled as matter of right to a jury trial unless he waived it. The court, seemingly uncertain as to whether he ruled right or not in denying the motion to try the case in accordance with the stipulation, after taking the verdict made full findings of fact, adding its decision to that of the jury, the two being in harmony. In such circumstances we are unable to see that plaintiff was in any wise prejudiced by the ruling complained of. The general trend of authority is that an appellate court will not interfere with the action of a trial court in setting aside or disregarding a stipulation in respect to the conduct of a trial, in the absence of satisfactory affirmative proof, that, some right of appellant was prejudiced thereby. 20 Ency. PL & Pr. 610, and cases cited. That is the effect of Brown v. Cohn, 88 Wis. 621, 60 N. W. 826.
The law of this case, respecting whether respondent was entitled to judgment in the event of his establishing without harmful error in the course of the trial the facts alleged in the answer, was settled upon the first appeal. Some questions in that field are presented in the brief of appellant’s *486counsel, but we shall not refer thereto otherwise than by this recognition of them and the well-known rule that they are settled by the former decision. Case v. Hoffman, 100 Wis. 314, 72 N. W. 390, 74 N. W. 220, 75 N. W. 945 ; Collins v. Janesville, 111 Wis. 348, 87 N. W. 241, 1087; Zimmer v. Fox River Valley E. R. Co. 123 Wis. 643, 645, 101 N. W. 1099; Horn v. La Crosse Box Co. 131 Wis. 384, 388, 111 N. W. 522.
While some fault is found with the special verdict no complaint goes to the extent of challenging its sufficiency as not covering all controverted issues of fact. Such being the case, the fact, if there be such as claimed, that some questions included in the verdict are immaterial and others do not, each by itself, cover a distinct issue raised by the pleadings, is nonprejudicial. It were better to always prepare the special verdict in strict conformity to the statute as the court has construed it. Rut if in any case the verdict in some reasonable form covers all material facts put in issue by the pleadings and controverted in the evidence, so that each question and the answer thereto informs the court as to the truth of the controversy involved therein, especially in case of there being no objection to the form till after the jury are discharged, another rule of the statutes — the one commanding a disregard of nonprejudicial errors — must prevail. No objection to the form of the verdict here was raised by appellant’s counsel upon the trial except one not mentioned upon this appeal. The fact that counsel examined the form prepared by the court and made the one objection thereto directed to one question, keeping silent in respect to it otherwise, may well have been understood by the court as consenting to such form, except as thus criticised. Nothing further seems necessary on this branch of the case.
Much complaint is made that the verdict, at some material points, is not supported by any credible evidence. The record has been carefully studied in that respect. We shall *487not follow in this opinion the intricacies of counsel’s argument as to what is essential to a contract embodying the fatal elements set forth in the answer. Many questions discussed in counsel’s brief in respect to such matters, bearing on the greater question that the verdict is not supported by the evidence, are beside the case, as we view it. Did the plaintiff and defendant make the contract alleged in the answer? That is the vital question, and it was resolved by the jury in respondent’s favor by a distinct finding on the subject.
True, appellant acted in the matter through an agent, but there is no question of ratification necessarily involved, since the jury found that the agent had original authority to act as he did. Moreover, we agree with the contention of respondent’s counsel that the act of appellant in keeping the fruits of i the alleged and found illegal transaction and pursuing respondent to realize thereon after being fully informed of the nature thereof, as it seems was. the case, was a ratification of the agent’s conduct as a matter of law. McDermott v. Jackson, 97 Wis. 64, 76, 72 N. W. 375; Fraser v. Ætna L. Ins. Co. 114 Wis. 510, 90 N. W. 476. In the last case cited it was stated as a principle too well understood to justify discussing the same in a'legal opinion, that a person cannot have the benefit of a transaction and repudiate the responsibilities thereof. If .he insists upon the one he subjects himself to the other as regards civil remedies. Standard works on the law of principal and agent uniformly so state the rule to be, as witness the following:
“The principal cannot avail himself of the benefits of the act of a person assuming to represent him in a transaction and repudiate its obligations. Having, with full knowledge of all the material facts, ratified, either expressly or impliedly, the act assumed to be done in his behalf, he thenceforward stands responsible for the whole of it to the full extent to which the agent assumed to act, and he must abide by it whether the act be a contract or a tort and whether it results to his advantage or detriment.” Mechem, Agency, § 167.
*488Without further discussion on this branch of the case we will close by stating this as the conclusion to which we have arrived: There is ample evidence tending to establish every material fact covered by the verdict. To incumber this opinion by a recital of the evidence in detail, or even by stating the, same in a general way with an analysis thereof, pointing out how the jury might reasonably have viewed the same, would serve no purpose except to support the statement that the record has been carefully examined as a basis for the conclusion. We must assume that no such support is necessary.
Many complaints are made of rulings on evidence. We will refer in detail to those which we regard as most significant.
Evidence was permitted on the part of defendant as to there being devices similar in character to the one in question with which the latter, at the time the contract was made, would, upon its being placed on the market, come in competition. It is suggested that the evidence should not have been allowed in the absence of proof that such other devices were patented. We are unable to see why that could make any difference. The materiality of the evidence was in its tendency to prove the circumstance that the particular device was but one of several designed for the same purpose; that being regarded as throwing some light on whether the contract actually made was as claimed by respondent. In that respect the evidence was competent. It is said that the evidence was not limited to the time and place involved in the contract. As we read the evidence it clearly related to the time of the contract and theretofore and was general, including the place where the contract was made, The material thing, as indicated, was to show that in any effort to sell the patented device one would not have the advantages of a monopoly and that under such circumstances and others shown by the evidence such a contract as appellant claimed *489was made would be unreasonable and, therefore, the making thereof was improbable.
It is further suggested that in no ease where a witness testified on the subject of there being other appliances on the market was it shown that he was competent to testify as to relative merits. Ho place is pointed out by counsel where any witness testified in relation to relative merits. Counsel for respondent seems to have been content with proving the ■evidentiary circumstance that the particular device was but one of -many. So far as the evidence was weak in not showing relative merits it went to the weight of the evidence, not to the competency thereof.
Particular complaint is made because the court permitted one Jackson to testify on the subject of the existence of other appliances than the one in question without, as alleged, having shown himself to be experienced in respect to the matter. As we read the evidence counsel is in error. It shows that the witness personally knew of several devices designed to accomplish the same result as the particular one. He had observed them in use for quite a period of time and kept them for sale in his business as a hardware dealer and sold them when traveling as a sales agent. -
Error is assigned because the court permitted a witness to testify that a particular device .shown him designed for the same purpose as the one in question was practical. It is argued that the witness was not shown to have any special knowledge on the subject. The record clearly indicates to us otherwise. The witness seems to' have had several years’ experience as a wagon and carriage maker, and dealer, and in such business to have, prior to the making of the contract, seen some five or six devices of the nature of the one in question and observed some or all of them in use. In short, the witness’s competency to a high degree was shown. It is argued that it was improper for the witness to testify as to the ■design of devices shown him; that such was opinion evidence *490and invaded the province of the jury. USTo reason is perceived why it was not perfectly proper for snch an experienced witness to merely testify to what appliances exhibited to him were designed for. If it was a matter open to any one of common knowledge the evidence was harmless. If it was within the field of expert evidence the witness was abundantly competent. At this point it is again suggested that the witness’s evidence as to the use of thill couplings was not limited to the time and place of the contract. We find that it was very carefully so limited as to time and related to the territory in which the contract was made.
Eurther complaint is made because respondent was permitted to give direct evidence as to his purpose in making the contract. It is suggested that his intent by itself was immaterial, the mutual intent only being important; that an undisclosed intent in any event cannot be testified'to for. the purpose of contradicting or nullifying express and definite words of a contract, and that the intent was only provable by the acts and language of the parties. It is a sufficient answer to counsel’s entire argument at this point that the evidence was nonprejudicial because the intent in making the contract, if the character of the agreement was as he claimed, was manifest. Moreover, the admission of the evidence was not upon the theory, nor did it give rise reasonably to a suspicion, that the intent of the defendant, by itself, was material, nor did the evidence tend to contradict, but rather it was in perfect harmony with the words of, the contract as respondent claimed it was made. Again, counsel is in error in the position that direct evidence of intent, when that element is material, is not permissible. It is proper in many situations. Anderson v. Wehe, 62 Wis. 401, 22 N. W. 584;’ Commercial Bank v. Firemen’s Ins. Co. 87 Wis. 297, 303, 304, 58 N. W. 391; Fischer v. State, 101 Wis. 23, 26, 76 N. W. 594. When the act in question is ambiguous as regards the intent, direct evidence is always proper. When the in*491tent is manifest from the contract and in harmony with the intent testified to, the evidence is immaterial, but harmless. When the intent is so manifest it is error to admit direct evidence impeaching it. The subject is ■ summarized in Jones, Ev. at sec. 170 (167), in harmony with the decisions of this and other courts substantially thus:
“It is the prevailing rule, sustained by the great weight of authority, that . . . when the motives of the witness in performing a particular act become a material issue in a cause or reflect important light upon such issue, he may himself be sworn in regard to it, . . . though testimony of this character should not be received to change the import of a contract, as to the terms of which there is no dispute, or to vary a written instrument.”
Reliance is placed on the fact that the court permitted evidence of transactions subsequent to the making of the contract. Whether, if that were true, it was proper or not under the circumstances need not be considered, since we are unable to find that any such evidence was given. As we view the matter, counsel is plainly in error as to the time when the contract was finally concluded and the complaint at this point is predicated on such error.
The court erred, it is said, in rejecting proof as to the limitation of the authority of the agent who acted in appellant’s behalf in making the contract. The record discloses that the witness whose testimony is referred to, while not permitted to give evidence of his conclusion, was allowed to testify fully respecting what was said and done between the agent and the principal respecting the matter. Moreover, rulings on that line, whether correct or not, were nonprejudicial, since the case shows that appellant adopted the act of the agent as before indicated.
There are several more rulings complained of excluding or admitting evidence, but they are not considered of sufficient importance to warrant further detail mention thereof.
*492It may be well to observe that rulings of the character just discussed, unless they relate to something of a substantial nature and are clearly wrong and may probably have affected the result prejudicially to the adverse party, fall under the statutory rule respecting disturbance of a final adjudication because of nonprejudicial matter. Therefore the presentation of a multitude of such rulings for review upon appeal, without careful discrimination between those which may be worthy of consideration and those which are not, is far from being advisable. It takes up the time of the' court and counsel which could profitably be devoted to matters which are vital. Instances are few in number where such rulings have been found to be of sufficient importance to have probably affected the result.
It is claimed the court instructed the jury that there was in fact an oral agreement made between the parties contemporaneous with and in addition to the written contract, thereby invading their province respecting the vital issue in the case. That claim is grounded on what appears to be an erroneous report of the charge; a mere explanatory sentence being reported as an independent expression. We have no doubt from the language objected to and its context that the whole was read to the jury in such a way as to unmistakably convey to them a single thought, leaving the controversy involved to them for determination. The charge as we apprehend it was given, and as seems manifest, is as follows:
“The defendant here claims that there was an oral understanding and agreement outside the written contract, and that is for you to determine by your answer to the question whether that is a fact or not; I mean to say, that there was an oral understanding or agreement made at the same time and contemporaneous with the written agreement. It is that understanding or agreement that I refer to that the defendant contends was made at the same time with the written contract, and by your answer to this question you are called upon to determine whether or not that is a fact.”
*493Tbe clause commencing witb tbe words “I mean to say,” plainly refers to wbat preceded by way of explanation, for tbe purpose of impressing upon tbe minds of tbe jurors more definitely tbe real issue to be determined. That is rendered doubly plain by tbe sentence wbicb follows. By separating tbe intervening clause, as counsel does, from tbe words wbicb precede it, plain error is exhibited, but tbe clause is thus made so inconsistent witb tbe language which follows it as to make tbe claim that it was used as counsel contends and as it was punctuated by tbe reporter, quite unreasonable. Tbe jury must have gotten this idea and none other: You are to determine by your answer to this question whether that is tbe fact or not, viz.: that there was an oral understanding or agreement made at tbe time and contemporaneous witb tbe written agreement.
Some requests to instruct tbe jury made by counsel for appellant on tbe subject of ratification were rejected. In some instances tbe requests were rejected properly because they were not directed to any particular question. All were properly rejected because tbe evidence showed ratification as a matter of law, and in any event the rejection was harmless because the jury found as matter of fact on evidence warranting it that the contract was made between plaintiff and defendant at tbe outset as testified to by tbe former.
Complaint is made because tbe court rejected an instruction to tbe effect that tbe intent of one party in making tbe contract is immaterial without a similar intent on tbe part of the other and that tbe affirmative of question 9, covering tbe issue as to- wbat tbe contract in fact was, depended on whether tbe jury concluded from a preponderance of tbe evidence that both parties intended to make such an agreement as that contemplated by tbe question. Tbe difficulty at this point is that the question did not deal witb tbe subject of intent as a fact, but witb tbe subject of wbat tbe contract was wbic-b tbe parties made as disclosed by tbe writing and their *494verbal communications. If they said and did wbat respondent claims, then they made tbe contract alleged. To hold that they did not would be to contradict unmistakable language and acts. So the intent as an independent substantive fact was immaterial, though as before indicated, so far as it was testified to directly, the evidence was, if immaterial, not harmful. The question and instructions given in respect thereto made it impossible for the jury to pass upon the controversy favorably to respondent without finding that there was a meeting of minds in respect to the matter.
A further suggestion is made that the court improperly permitted the jury in answering the question last above mentioned to find that there was an oral contract made subsequent to the making of the written contract and the giving of the note sued on. Here again counsel points to a sentence apart from its context which is clearly explanatory of what precedes it. That is manifestly an improper way to test a court’s instructions. By such methods one might easily read error out of language which is, when properly considered, absolutely faultless. When the instruction here is considered as a whole, the particular part unmistakably refers to the claim that the written contract was but part execution of an entire oral one made at the time the writing was executed. We may well repeat what has often been said before, that a charge must be regarded as a whole and as the jury must have understood it and not divided up into its separate sentences and clauses. Bartell v. State, 106 Wis. 342, 82 N. W. 142; Felton v. Spider Lake S. & L. Co. 132 Wis. 219, 235, 112 N. W. 29.
Some other matters are presented by counsel for appellant but none which seem to call'for special treatment. All complaints not here mentioned in detail have been considered and passed upon, resulting in a conclusion that the judgment must be affirmed.
By the Court. — So ordered.