of the coal company, whose duty it was to weigh the loaded cars, per- mitted certain cars, loaded with coal, to be placed on the track on which the train would come from Wilton to the coal mine that morning. There is no evidence tending to show that the track in question was ever before used for the purpose of placing either loaded or empty cars thereon. On the contrary the evidence shows that the track was not sc used, but was used merely for the movement of trains to and from the mine. And the assistant weighmaster frankly admits that the reason the cars were placed where they were was that the brake slipped and the cars went over the switch, and out on the main line. The assistant weighmaster testified that the work done by him in connection with these ours was in his regular line of duty; and it clearly appears from his testimony that the place where the cars were placed was not the usual place to put such cars, and that but for the brake slipping they would not have been placed where they were. He further testified that he notified no one of the fact that the cars had gone out onto the main track, and took no precautions whatever to prevent the accident which subsequently happened, although he knew that the train would arrive in the course of half an hour or an hour after the cars had gone onto the main track. In our opinion, the evidence amply justified the conclusion of the jury that the coal company and its employees were negligent in placing the cars where they were, and also that this negligent act contributed directly to the injury sustained by the plaintiff.
It is next contended that, under the facts in this case, the plaintiff cannot maintain a joint action against the coal company and the Director General, and that the joint verdict against them must be set aside. The claim of the defendants, and especially that of the coal company, as we understand from the argument, is that the defendants cannot be jointly sued for the injury occasioned by the collision unless it is shown that they omitted to perform, or negligently performed, some duty which they were jointly bound to perform, or unless it is shown that they jointly committed some tortious act which resulted in the injury. In our opinion, the contention is not sound, for it is not alone in cases where two or more persons are negligent in the performance of a duty which they jointly owe to another that they become liable, and may be sued jointly for the injury sustained. It is well settled that, where two or amore causes join, and by contemporaneous action produce, a single in jury, the author of each cause is liable, even though the authors acted
