Maeshall, J.
The foregoing brief statement is believed to present clearly the only questions necessary to be considered in determining this appeal. Nunierous questions were suggested and errors assigned and exhaustively and ably discussed in the numerous briefs of eminent counsel who represent the parties in this court, most of which questions and alleged errors, in what is deemed to be an orderly consideration of the cause, are not necessarily reached in [634]*634arriving at a final conclusion as to the rights of the parties. That will appear from what follows, and is the reason why such questions have not been considered or decided. No further proceedings in this case will involve them, and they are not of such a character that a decision of them would be important to trial courts in the future. This is said as to the greater part of the field covered by the case and briefs of counsel, not by way of criticism, for it is reasonable and commendable that, at least where so large a sum of money as the judgment here calls for is involved, all questions deemed by counsel in any way liable to affect the final result in any view of the case be suggested to the court; yet, where no trial follows the result here, the questions necessary to a determination of the appeal are all that it is profitable to discuss, unless others are of special importance as future guides.
The controlling question on the record, as we view it, is, What was the proper judgment on the first cause of action according to the undisputed facts and the facts found by the jury? The respondents stand on the findings of the jury as verities, and must prevail, if at all, on the case as thus determined. On the various motions made by the parties the court was called upon, if the verdict stood the test of the motion to set it aside as contrary to the evidence and for other reasons, to order judgment for appellant or respondents, according to the determination reached on the questions of law which they presented. Such questions ■were determined in respondents’ favor. The principles they involved will clearly appear to be of far-reaching importance by a brief reference to the facts.
The jury found that the southwest fire, alleged to have been caused by defendant’s negligence, and to have originated about one mile and a quarter southwest of the property destroyed, did not reach such property so as to affect it as an independent agency;- that another fire came from the [635]*635northwest, and so united with the other that the identity of both as independent agencies was lost before any fire reached such property; that when the northwest fire reached the line of the southwest fire, so there was in fact but one fire, it swept on into the yard, and set plaintiffs’ property on fire and destroyed it. While the jury found that both fires caused the burning, as they said that but one fire entered the yard and that swept into it from the northwest, the direction from which the independent fire of unknown origin ' came, it is hard to perceive how the fact can be that the southwest fire, as an efficient agent, ever reached the scene of the destruction. But, looking at the verdict in the most favorable view for the respondents, and giving it the most favorable construction it will reasonably bear, it is to the effect that the damage was done solely by one fire; that such fire was made up of two independent fires which united before the property was reached, one for which defendant was responsible, and the other having no knoivn responsible origin, so that if the responsible agent had not existed at all the loss would have been the same in all respects, as to time, manner, and extent. We are strongly persuaded from the evidence that the finding of the jury that the southwest fire, as an efficient agent, reached the plaintiffs’ property, either by union with the northwest fire or otherwise, is contrary to undisputed facts and all reasonable probabilities; but that is one of the questions not necessary to decide, if, taking the verdict as it stands, defendant is not liable.
That we correctly construe the verdict of the jury cannot be reasonably questioned. The trial judge, in a very elaborate opinion, delivered in disposing of the motions for judgment, gave it the same construction. He said: “Each fire reached the yard only as part of one common fire, and either in the absence of the other would have reached and fired the yard the same as the joint fire did. In that sense both reached the yard at the same time, although they united [636]*636some distance away from it. Under the law governing the case it is immaterial bow far away they united.” And again: “We reach the conclusion that neither was the proximate cause of the injury, because the event would have occurred without either cause,— the other cause existed,— each was ooncedcdly a cause sufficient to produce the injury. The injury was produced by the concurrent action-of both, but neither was the proximate cause, because the other, without it, would have produced the same result.” The logic of the learned circuit judge, as to the proximate cause, would hardly bear the test of careful analysis. It may be, to take his language literally would not convey the real meaning intended. Where two causes concur in producing a certain result, either of which would produce the same result regardless of the other, it is not an accurate statement of the situation to say that neither is the proxitíiate cause of such result, using the term as we apprehend the learned judge did, as descriptive of the antecedent or producing cause, and not in the strict legal sense of a cause referable to human agency on a line of responsible causation. In the mere physical sense of producing antecedent, it is more proper to say that, in the circumstances suggested, neither fire was the sole proximate cause of the loss.
Prom what has preceded it is apparent that the legal question presented to the trial court and decided in plaintiffs’ favor,.in granting their motion for judgment and denying that of the defendant, is the following: Where two independent efficient causes unite and produce an injury to another, one of which is traceable to a responsible person whose negligence set it in motion under such circumstances that he is chargeable with knowledge that it might cause an injury to another as a natural and probable result of his conduct, and the other cause is not traceable, to any known responsible agent, each of which causes, however, without the concurrence of the other would produce the same injury, [637]*637that is, so that the injury would happen at the same time and to the same extent regardless of the responsible agency, does a cause of action against suph agency accrue to the injured person for his loss? It is believed that the solution of that question is governed by principles as old as the common law,— principles so long and firmly established, and universally recognized by all text writers and courts, that were it not for the learned discussion of the subject by the trial court, leading up to the conclusion which' eventuated in the judgment appealed from, and the later learned discussion by counsel in this court to support the conclusion thus reached, the decision here would be supported by a mere statement of the law without extended discussion or citation of authorities; but such circumstances seem to furnish excuse, at least, for a somewhat different course.
It seems to have been conceded on the trial below, at one stage of the proceedings, that unless the alleged negligent fire was the sole cause of the loss complained of, there could be no recovery therefor. Later, in the submission of the case to the jury, it appears to have been uncertain in the judicial mind, whether, if the defendant was liable at all, the liability extended to the entire loss, or only to a portion of it, on the theory that there might be an apportionment of the loss between the concurring causes. But it was finally determined that the person charged, known to have negligently originated one of the causes, was, as a matter of law, liable for the entire loss, though it would have happened just the same from the other efficient cause of unknown origin. To support that theory numerous cases are cited to the effect that when two or more concurring causes produce a loss, each having a .responsible source, there is a’ joint and several liability for the entire loss. That is a doctrine too familiar to require more than tobe stated. When the facts are such as to invoke its application, it extends to where each of the concurring causes contributes to produce [638]*638the result and is necessary to it, and where each is sufficient of itself to produce the result and would, in the giren case, have that effect regardless of the other, and whether the concurrence of the causes be intentional or accidental.
In Haley v. Jump River Lumber Co. 81 Wis. 412, a person, on one theory of the case, was injured by negligence of a co-employee in loading a car, concurring with negligence of the defendant in leaving an obstruction in dangerous proximity to the track. Under such circumstances the court said that each was liable for the injury. In the same line is Atkinson v. Goodrich Transp. Co. 60 Wis. 141, where negligence of a mill owner in allowing shavings and sawdust to accumulate between his mill and a dock, concurred with negligence of the defendant in allowing sparks to be emitted from the smokestack of its boat, whereby a fire was set which spread to plaintiff’s property and destroyed it. The court held the defendant liable, and Mr. Justice Tatxoe, who wrote the opinion, cited in support of it, among numerous authorities, the elementary rule laid down in Wharton on Negligence at § 144, in substance as follows: The fact that one responsible person contributes, either before the interposition of another or concurrently with such interposition, in producing the damage, is no defense as to either. If A. negligently leaves certain articles in a particular place, and R. negligently meddles with them, supposing B.’s negligence to be made out and he is a responsible party under the limitation expressed, he cannot set up A.’s prior negligence as a defense. Another example is Johnson v. N. W. Tel. Exch. Co. 48 Minn. 433, where a weak telephone pole was negligently left in place by the company. For a limited time an adjoining lot-owner allowed the company to reinforce the ability of the pole to stand by guying it to his building with a wire. After a reasonable time had elapsed in which to replace the defective pole with a suitable one, the property owner cut the guy wire and the result was [639]*639that the pole fell and injured the plaintiff. On one theory of the case the property owner and the telephone company were both negligent, and without the concurring negligence the injury would not have happened. Under these circumstances the court said that each was liable for the whole loss.
On another branch of the rule mentioned, as an example of numerous authorities that might be cited, is Gould v. Sahermer, 101 Iowa, 582, where, on one theory of the case,, defendant’s negligence concurred with some other cause, not attributable to any responsible human agency, to produce the injury, and the court said, in effect, that the defendant’s wrong, concurring with the other cause, and both operating proximately at the same time in producing the injury, makes the wrongdoer liable therefor. That was on the theory that the accident would not have occurred but for the negligent act.
On another branch of the rule stated may be cited Slater v. Mersereau, 64 N. Y. 138, where there were two efficient proximate causes, each traceable to the negligence of a responsible party, either of which would have caused the entire injury regardless of the existence of the other, and the court, by Miller, J., said in substance: It is no defense for a person against whom negligence which causes damage is established, to prove that without fault on his part the same damage would have resulted from the negligent act of the other, but each is responsible for the entire damage.
Further citation of authority along this line is deemed unnecessary. It will be easily observed that they refer, first, to cases where there was a concurrence of responsible human agencies, both of which were essential to the result; second, to cases where there was a concurrence of responsible human agencies, either of which would have effected the result regardless of the other; third, to cases where there was a concurrence of a responsible human agency and some other cause, and the former was an efficient contributing cause [640]*640and. essential to tbe result. All of the numerous cases cited by respondents’ counsel, and those cited by the learned circuit judge, fall within one or the other of the situations mentioned, as, for example, McClellan v. St. P., M. & M. R. Co. 58 Minn. 104, much relied on to support the judgment, where the recovery was solely^ on the ground that, though there was proof of two fires, the finding of the jury •was that the fire negligently originated by defendant was the one that reaohed the plaintiffs’ property and the sole ■cause of its destruction. In discussing an assignment of error on the charge given by the trial court, the judge who delivered the opinion said: “ If two fires have been set, the origin of one or both of which can be traced to the negligence of a party or parties, either or both of the parties can be held responsible for the resulting damages, in case the fires mingle.” That language was wholly unnecessary to a decision of the case, as no such situation was presented, and, unless read in the light of well-understood legal principles and the circumstances which were evidently in the judicial mind, it would be very liable to mislead. In the view that the judge was speaking of the existence and concurrence of two fires, both attributable to the negligence of responsible agencies, so as to bring the case within the rule of joint wrongdoers, the language ceases to have any significance in support of the theory upon which this judgment was rendered and must stand, if at all. .That the rule of joint tortfeasors was what the court referred to, is plain from what was subsequently said bjr way of illustration, to the effect that, where the injury is the result of two concurrent causes, one party is not exempt from full liability although another is equally culpable. To say that the learned court intended to extend that rule to cases where the act of the wrongdoer concurs with some unknown cause not attributable to any responsible human agency, and causes damage, thereby rendering the legal consequences to the wrongdoer the same as in the case of joint [641]*641wrongdoers, whether his act was essential to the result or not, would be a conclusion not warranted by a careful reading of the whole opinion, and inconsistent with the settled rule of law on the subject, recognized by that court and all others, as we shall see later.
What has been said above applies to Grand Trunk R. Co. v. Cummings, 106 U. S. 700; Stone v. Dickinson, 5 Allen, 29; S. C. 7 Allen, 26; Stetler v. C. & N. W. R. Co. 46 Wis. 497; and the numerous other cases cited by respondents. All ai’e cases of joint tortfeasors, or cases where the injury would not have happened but for the negligence complained of. They do not touch the real question we are called upon to decide. What is the situation of the wrongdoer where the injury ivould have taken place, necessarily, from another cause, at the same time and to the same extent, regardless of his conduct? That is the question presented. The discussion thus far has proceeded on a line merely to clearly bring out and recognize the well-known principles of law for which respondents contend and which ruled the trial court, and show their inapplicability to the facts found by the jury.
The law of negligence is laid on reasonable lines the same as any other branch of jurisprudence.» The theory upon which compensation goes to an injured person from another ■whose negligence proximately caused the injury, is not that of punishment for the wrong, but that, in justice to such person, compensation is due for the damages caused to him by such negligence, so far as the same can be reasonably ascertained. Where the wrong of one person concurs with that of another under such circumstances that the injury would not result without the concurrence, it is reasonable to hold each liable for the entire loss, because the same would not have occurred if the negligence of either were absent. Notwithstanding the concurrence of the two causes, each, in a sense, under such circumstances, is the proximate cause of the loss, because there is responsible human causation back [642]*642of it, ■without which the injury would not have happened. Again, where two causes, each attributable to the negligence of a responsible person, concur in producing an injury to another, either of which causes would produce it regardless of the other, it is reasonable to say that there is a joint and several liability, because, whether the concurrence be intentional, actual or constructive, each wrongdoer, in effect, adopts the conduct of his co-actor, and for the further reason that it is impossible to apportion the damage or to say that either perpetrated any distinct injury that can be separated from the whole. The whole loss must necessarily be considered and treated as an entirety. But where a cause set in motion by negligence reaches to the result complained of in a line of responsible causation, and another cause, having no responsible origin, reaches it at the same time, so that what then takes place would happen as the effect of either cause, entirely regardless of the other, then the consequence cannot be said, with any degree of certainty, to relate to negligence as its antecedent; requisite intelligent causation necessary to legal liability is wanting, leaving no ground, in reason or in law, for it to rest upon.
To further illustrate: If an injury accrues to a person from inability to control his team, where that is more than momentary, concurring with a defect in the highway, and the injury would not otherwise happen, the mere concurrence of negligence of the municipality responsible for the defect will not render the corporation liable, because the condition of the team is deemed to be the real producing cause. Jackson v. Bellevieu, 30 Wis. 250; Houfe v. Fulton, 29 Wis. 296; Schillinger v. Verona, 96 Wis. 456; Loberg v. Amherst, 87 Wis. 634; McFarlane v. Sullivan, 99 Wis. -; Scannal v. Cambridge, 163 Mass. 91; Babson v. Rockport, 101 Mass. 93; Palmer v. Andover, 2 Cush. 600.
Applying the same doctrine in Campbell v. Stillwater, 32 Minn. 308, the court held that where several concurring acts [643]*643or conditions of things, one of -them a wrongful act or omission of some person, under such circumstances that such person might reasonably have anticipated such an injury as the natural and probable result of his act or omission, he is liable, provided the injury would not have occurred without it. The general rule, so recognized and applied by that court, was stated by the judge who wrote the opinion, thus: “ In case of tort, the rule as to the proximate cause is, that where several acts or conditions of things produce an injury, if one is the wrongful act or omission of the defendant and it would not have ooawrred without his act, and he might reasonably have anticipated the result as a natural consequence of such act, that is the proximate cause of the result.” That is quite inconsistent with the construction of the opinion of the same court in McClellan v. St. R., M. & M. R. Co. 58 Minn. 104, confidently pressed upon our attention, but accords with the construction which we have given to it and "which was clearly what the court intended, though, as before indicated, language was used that might lead to a different conclusion unless viewed in the light of settled legal principles. It may safely be said that the rule stated in Campbell v. Stillwater, 32 Minn. 308, applies in all cases where negligence of a party concurs with some other cause not traceable to a responsible source. 16 Am. & Eng. Ency. of Law, 441, and notes;. 2 Thomp. Neg. 1085; Shearm. & Redf. Neg. § 33; Whittaker’s Smith, Neg. (2d Am. ed.), 44; Ring v. Cohoes, 77 N. Y. 83; Ayres v. Hammondsport, 130 N. Y. 665; Ilfrey v. S. & E. T. R. Co. 76 Tex. 63; Union St. R. Co. v. Stone, 54 Kan. 83; Carterville v. Cools, 129 Ill. 152.
The logical deduction from the foregoing is that where an injury accrues to a person, by the concurrence of two causes, one traceable to another person under such circumstances as to render him liable as a wrongdoer, and the other not traceable to any responsible origin, but of such efficient or superior force that it would produce the injury regardless of [644]*644the responsible cause, there is.no legal liability. No damage in such circumstances can be traced, with reasonable certainty, to- wrongdoing as a producing cause. The one traceable to the wrongdoer is superseded by the other cause or condition, which takes the place of it and becomes, in a physical sense, the proximate antecedent of what follows.
From the foregoing the conclusion is easily reached that the defendant in this case is not liable for the fire loss from the facts found by the jury. Its negligence, even if operating up to about the instant the fire entered the plaintiffs’ property, was there superseded by the independent northwest fire. Whether it can be said that after the two fires became one the element attributable to the defendant continued, though its identity was lost in the combination and it was superseded by the fire that swept down upon the property from the north west, it cannot be said that the result which followed would not have occurred but for such responsible element. On the contrary it stands as a verity in the case that it would have occurred just the same, regardless of the negligent fire.
It is proper to say that the learned counsel for the plaintiffs tried the case and asked its submission to the jury with a very clear conception of the legal principles governing it, in perfect accord with the conclusion which we have reached. They did not seek or expect to recover upon any other theory than that the destruction of plaintiffs’ property was caused by the southwest fire, and that it would not otherwise have occurred at that time. One of the counsel said, in substance, during a colloquy between him and the court, when the questions for submission to the jury were being settled: We must stand or fall on the theory that the southwest fire spread to plaintiffs’ property and destroyed it, and that no fire came from the northwest and reached-the’ property ; that if the whole loss can as well be attributed to the northwest fire, as to the southwest fire, no assessment of [645]*645damages can be made against the defendant. The whole difficulty arose when, after the verdict was rendered, the doctrine of the liability?- of joint wrongdoers, or of a wrongdoer when his act, concurring with some other cause or condition having no responsible origin, produces an injury which would not otherwise occur, was applied to the verdict, unmindful, apparently, that such verdict did not present facts warranting such application, but on the contrary presented facts which brought the case within a different rule in the law of negligence.
. There is left the claim for the two horses, killed on the day of the fire by straying upon the right of way and being run down by one of defendant’s engines. It is not claimed that there was any negligence of the employees in charge of the train that killed the horses. The right of recovery is based solely upon the fact that defendant failed to perform its duty in respect to fencing the right of way. The statute on the subject (sec. 1810, R. S. 1878) requires railroad corporations to fence their tracks, and provides that until such duty is performed, every such corporation, and every railroad corporation owning any such road, shall be liable for all damage done to cattle, horses, or other domestic animals, occasioned in any manner, in whole or in fart, lyy the want of such fence. If the horses, therefore, entered upon the right of way because of the failure of the defendant to comply with the statute, then the rule of absolute liability attached. Quackenbush v. W. & M. R. Co. 62 Wis. 411. There is no finding on the question of whether the entry of the horses on the right of way is attributable in whole or in part to the failure to fence it. It must be conceded that, had there been a fence, it would necessarily have been destroyed by the fire that occurred two or three hours before the horses were killed. The evidence all points that way. They were turned out of their stable and left to run at large to preserve them from the fire that destroyed substantially [646]*646everything of a combustible character on both sides of the railway track in the vicinity of the place where they entered upon the right of way.
The statute is in derogation of the common law. It is a .penal statute. The validity of it rests wholly upon the police powers of the government, and it should be construed with reasonable strictness so as not to go beyond its plain letter and spirit. That is a general rule of construction applicable to all statutes of its class. Stone v. Lannon, 6 Wis. 497; Coleman v. Hart, 37 Wis. 180; State v. Huck, 29 Wis. 202; Crumbly v. Bardon, 70 Wis. 385. Looking at the language in the light of such rule, it must be held that the circumstances of the horses going upon the track must have some causal connection with the failure to fence, not the mere nonexistence of a fence at the time of the entry, or there is no liability because of the failure to fence. If the failure to fence did not reach to such entry because of the intervention of some other cause or condition, the statutory rule of absolute liability does not apply. That has been held in cases where horses were abandoned under such circumstances that it was certain they would go upon the right of way where they would be liable to be killed. Corwin v. N. Y. & E. M. Co. 13 N. Y. 42; Missouri Pacific P. Co. v. Roads, 23 Am. & Eng. R. Cas. 167; Welty v. I. & V. R. Co. 105 Ind. 55. In such circumstances it was held that the owner of the horses consented to their destruction; that his conduct was not mere contributory negligence, which would not be a defense under the statute, but was the sole proximate cause.
That the law-makers intended that the failure to fence should be at least a contributing cause to the entry of domestic animals upon the railway right of way in order to make the rule of absolute liability applicable, is quite clear, not only from their language, but from its being followed by a provision to the effect that in case of a failure to main[647]*647tain a fence after once constructed, tbe liability for the killing of domestic animals shall not extend to losses accruing in part from contributory negligence of the persons claiming compensation therefor, or losses accruing from defeqtsin the fence existing without negligence on the part of the railway corporation. Here there was a superseding overpowering cause that intervened between the failure of duty to fence and the entry of the horses upon the right of way, which took the place of the defendant’s negligence, so that it cannot reasonably be said that such negligence, either in whole or in part, produced the loss complained of. - In following the chain of causation from the death of the horses back, we find it tied at the antecedent end to the condition created by the fire. Over that we cannot pass to reach the neglect to fence, which, under the circumstances, became a remote cause. Our duty ends when we trace the chain back to what must stand as the real producing cause. Causa próxima et non remota spectator. The rule clearly applies that if, between an injury and prior negligence which might have produced it had the effect reached that far, there were a superseding cause, though not traceable to a responsible source, which, without the operation of the negligence contributing, produced the result complained of, the wrongdoer is not liable.
It follows necessarily from the preceding, that the trial court erred in holding that the defendant was liable for the loss of the two horses killed on the day of the fire. There was no contest as to the right to recover $360.94 under the third and fourth causes of action. Judgment in plaintiff’s favor should have been limited to that, and costs taxed according to law. The judgment should have been otherwise in favor of the defendant. There is a statement in the motion papers indicating that there was an offer of judgment in the case made September 21,1894. We are unable to find anything in the record indicating the nature of that offer, so [648]*648as to determine bow it legally affects the question of costs in the lower court; therefore no directions in regard to it can be made. The question of costs will therefore be left for such court to determine when the case again reaches it.
A careful examination of the printed case and briefs satisfies us that a strict compliance with the rules calls for much less printing than they contain. The case consists of 547 pages, much of which could have been omitted entirely, and the balance have been much condensed. There are four briefs, including a reply, consisting in the aggregate of a little less than 200 pages. The rules require but one brief, and permit, in addition, a reply. Where there are several counsel on the same side and they deem the interests of their client to require a division of labor and separate briefs to be filed, that is permissible; but the fact remains that only one brief on a side is called for by the rules, though disbursements for others,' permitted in proper cases, may be allowed. • The allowance ordinarily, as a matter of right, however, goes only for one brief on a side and the permitted reply, as it is only necessary printing that is taxable against the losing party. Paine v. Trumbull, 38 Wis. 164. It is considered that 300 pages would have covered all printing that was reasonably necessary on this appeal, on the part of the appellant; therefore disbursements in this court on that account must be limited to that amount of printing.
By the Court.— The judgment of the circuit court is reversed, and the cause remanded with directions to enter judgment in favor of the plaintiffs for $360.94, and in favor of the defendant as to the first and second causes of action in the complaint, costs in the lower court to be taxed and allowed according to law; costs for printing on this appeal to be taxed as indicated in the opinion.