1. This was obviously a contract for the purchase of a by-product resulting incidentally from plaintiff’s-principal business of manufacturing flour. A purchaser could have no rational expectation that the operation of a mill for the production of such valuable product would be varied or restrained by any consideration for the quality of the refuse thrown off in such process. Hence there was no implied warranty on the seller’s part that the screenings which would result in the future should be of the same quality as tiróse resulting at the time the contract was made. All that plaintiff agreed to sell and deliver was that which in fact resulted from an established and existing process. The only direct evidence as to whether the commodity delivered did so result must of necessity come from plaintiff’s employees, who alone saw it produced, and their evidence is all to the effect that the property delivered did actually so result. But direct evidence may *396be overborne by circumstantial. If one of these cars contained clear sawdust, that fact would convince any one that its contents were not screenings from a flouring mill, and doubtless some less degree of inconsistency with that which ordinarily and necessarily results from screening wheat might suffice to satisfy a jury .that a commodity could not have resulted from such a process. There was verbal testimony descriptive of that which was contained in the cars sent defendant tending to show that it did not present those seeds and grains usually and uniformly characterizing wheat screenings; that it was mere ■chaff and dirt. In addition, however, there was exhibited in ■evidence samples of the contents of each car. Those samples are not before this court. They might have-been such as to ■convince one examining them that they could not result from a process such as was followed in plaintiff’s mill, of which some description was in evidence. We therefore cannot say that error was committed in leaving that question to the jury, ■or in refusing to reverse their negative finding upon it, which is the first assignment of error.

2. The second class of assignments of error are upon admission of evidence offered by defendant, consisting first in description of the process established and in operation in plaintiff’s mill, based partly on the observation of the witness, but mainly upon statements made by plaintiff’s manager in the course and scope of his management of the plaintiff’s business so as to qualify them as admissions (Hupfer v. Nat. D. Co. 119 Wis. 417, 96 N. W. 809; Kamp v. Coxe Bros. & Co. 122 Wis. 206, 99 N. W. 366); secondly, in the samples of the contents of the several cars shipped to defendant; and, thirdly, in the testimony of defendant himself that the contents of such cars were not Listman’s No. 2 bulk screenings. We can discover no reason for excluding either the first or second phases of this evidence. It was competent to show what the mill process was, in order to judge what character of product would result. Having done so, it was competent to *397show that the commodity tendered could not, and therefore-did not, result from the process described. To that end description of such commodity was obviously relevant, either-verbal description or exhibition of the samples, the fairly typical character of which was established.

Certain possible aspects of defendant’s testimony admitted over objection present questions of more doubt. Thus at one time he was allowed to testify that he examined carefully what plaintiff showed him as No. 2 screenings .at the time of negotiating -contract, and in immediate connection therewith to testify that none of the cars contained No. 2 screenings. This,, we confess, looks like an insidious attempt by counsel to get to the jury comparison between a sample exhibited prior to-the contract and the article delivered, which the court again and again ruled improper. But, even were that so, we cannot discover prejudice, for no such question was submitted to the jury. Again, we have been troubled whether the testimony of defendant that the contents of the cars were not No. 2 screenings was not merely the giving of his conclusion or opinion as-to the very question the jury were to answer upon all the-facts, and that, too, without any showing of expert qualifications in the way of special or peculiar knowledge. No such objection was specified or is now urged by appellant’s counsel, and we have reached the conclusion that this objectionable-quality does not appear with sufficient certainty to warrant reversal. It was proper for defendant to describe the commodity sent him, and the context in which this particular statement was made gives color to the probability that the witness’s statements that these were not No. 2 screenings were understood merely as a part of his description of their characteristics, and not as an attempt .to state his opinion as to-their source, of which he freely admitted he had no direct knowledge. We are persuaded that prejudicial error is not made to appear in the admission of evidence.

3. Certain remarks of counsel for. defendant in argument *398to tbe jury were made a basis for tbe motion for new trial and are now pressed as ground of reversal. Most of them consist in rather extreme language expressing tbe contention of cournsel that tbe samples of tbe commodity shipped to- tbe defendant ought to- convince any one that they were mere sweepings, .and that if, as was made to appear, tbe plaintiff’s process involved tbe removal of dirt from tbe screenings, it was tbe dirt and not tbe screenings that bad been shipped to tbe defendant. We are unable to say that this is trespassing beyond tbe limits of legitimate contention as to tbe inference or conclusion which might be drawn from tbe evidence. Tbe most reprehensible of tbe remarks criticised is tbe comment to tbe jury upon the efforts of tbe plaintiff to exclude from their -observation and consideration a sample of screenings which bad been shown tbe defendant at tbe time of or before tbe contract was made. An attempt by innuendo or otherwise to suggest to the jury that evidence which the court properly excludes uppn tbe objection of tbe opposing party would have been injurious to tbe latter, and thus to seek to arouse suspicion of weakness in the party’s case not resting upon evidence, is most improper; but it appears by tbe record that tbe trial court promptly suppressed such attempts and commanded -counsel to confine himself to tbe evidence which bad been admitted, and ruled that tbe jury bad no- right to- infer what -such samples might be. With this record and with tbe aid of the trial court’s conclusion that prejudice bad not occurred to tbe appellant warranting a new trial, we cannot feel justified in deeming even this conduct of counsel ground of reversal. See Kiekhoefer v. Hidershide, 113 Wis. 280, 291, 89 N. W. 189.

By the Court. — Judgment affirmed.