1. Negligence: pleading instruction. In submitting the case to the jury under the first count of the petition, the court gave but one instruction having relation to the charge of negligence, and that WaS TP011 its OWH motion, and as follows : “ In order for plaintiff to recover, it is necessary for to by a preponderance of the evidence before you that while in the discharge of his duties as brakeman he was, by the negligence of the engineer in making a violent stoppage of the train in such a manner as to cause an unusual jerk or lurch, whereby the plaintiff was thrown from thp train and received injuries complained of, without fault or negligence on his part.” Appellant contends for error in respect of the instruction thus given — and it is the argument that the charge of negligence as contained in the petition is addressed solely to the want of care on the part of the engineer in failing to observe the order given him, and in running the train at such a rate of speed as to make a sudden stop necessary — that it is not charged that the act of stopping, the train, considered by itself, was negligent; and, further, that the case as made by the evidence for plain-tifE shows conclusively that the sudden stoppage of the train was justified by the exigencies of the situation, and the' act did not therefore involvb negligence.
A careful. reading of the petition makes it clear that the contention of the appellant should be sustained. It will be observed that the acts of commission relied upon to constitute negligence are charged in one sentence of the petition, and it is apparent that the thought of the pleader was that, without care and in disobedience of the order under which he was .proceeding, the engineer had run his train to a point where it became necessary for him to make use of extraordinary and violent measures to stop his train and thus avoid a collision; whereas, and in the language of the petition, had he obeyed the order given him, the sudden stoppage of the train would not have been necessary. That the situation, as given expression to in the pleading, makes out a *217case of negligence, does not seem open to question. , There is but a single charge of negligence, however; that is to say, the improper operation of the train, and the sudden stoppage thereof, are to be taken as component parts of one breach or failure of duty. This must be so because, in the first place, the manner in which the train was operated, considered by itself, was not negligence as to plaintiff. In the second place, the sudden stoppage of the train, also considered by itself — and conceding the necessity of avoiding a collision ■ — • was not negligence as to plaintiff. Negligence can be predicated only upon a failure to perform a duty owing to him who sustains an injury by reason of such failure. This is ele-1 mentary. Now, the operation of the train, although careless and in violation of orders, did not alone result in any injury. On the other hand, it ought not to require argument to make clear that, a."collision being imminent, there could be no failure of duty on the part of the engineer in that he resorted to extreme measures to avoid such collision. Quite to the contrary, we think such act would be in the strict line of his duty. Certainly, if the engineer had suddenly and without warning come upon the work train, every obligation of duty would require at his hands that he use every instrumentality provided for the purpose to effectuate a timely stoppage of the -train, even though a sudden and unusual jerk and lurch of the same ” was occasioned thereby. • We do not say that negligence might not be charged in such a case, it being made to appear, by allegation that improper means were employed, or that proper means were improperly employed, by the engineer. But that is not this case. Here the allegation is, simply, that in the face of an impending collision the engineer “ deemed it necessary to and * * * did make a violent stoppage of the train.” The sudden stoppage of a freight train, even though accompanied by a violent or unusual jar, does not of itself constitute negligence, and, in the case of an employe, the fact of an accident occasioned by the operation of a train on which he is employed does not *218give rise to a presumption of negligence. Whitsett v. Railway, 67 Iowa, 157; Kuhns v. Railway, 70 Iowa, 561; O’Connor v. Railway, 83 Iowa, 105; Case v. Railway, 64 Iowa, 762.
2. Negligence: evidence. Passing now the pleading, and looking into the evidence,’ the error of the instruction is made still more apparent. The evidence for plaintiff tends directly to prove that the country through which the road ran was rough, and the track very crooked; that there were cuts, and snow fences, and timber along the line that obstructed the view; that for about a mile out of the junction it is an upgrade, and then the grade descends toward Ft. Atkinson; that as the train came down the grade it was running at the rate of about twenty miles an hour. Plaintiff says that as the engine rounded a curve he .discovered the work train on the track about forty rail lengths away, and called the attention of the engineer thereto. The latter, he says, at once, made application of the air to the 'brakes; that they failed to work apparently, for that the engineer then, sounded the whistle signal for hand brakes, and this, he says, was not usual when the air was working and in order. Plaintiff responded to the signal for brakes, and was in the act of climbing the ladder on the first car when .the jolt or jerk came. He attributed the shock to a reversal of the motion of the engine, although he says that an emergency application of the air to the brakes would have been equally severe in its results. Whether or not the train could have been stopped in time to avoid a collision by the use of hand brakes, or a service application of air, is left in extreme doubt. Plaintiff gives it as his opinion, founded upon many years of train service, that a stop would have required about a quarter of a mile. The situation is not aided by the evidence on behalf of defendant, for that all tends to prove that the train was running about five miles an hour only, and was brought to a full stop within its length by a service application of the air brakes alone; that there was no unusual jar or jolt incident *219to tbe«stoppage. We conclude that.tbe case submitted to the jury was not the case made by the pleadings and the evidence introduced thereunder, and this was error. It follows that a new trial should have been awarded, and the case will be remanded for that purpose.— Reversed.