It is plain that the collision would not have occurred had not one or other driver or both of them failed to exercise due care and it was contended that if in these circumstances Travers J. was unable to decide that the accident was wholly due to the negligence of one or other, he was bound to take the view that both were to blame and apportion the damages recoverable according to the degree of blame to be attached to each. Since he had not taken that course this Court must do so. I am unable to agree. The learned trial judge was unable to determine whether the collision had occurred on the northern or the southern side or in the centre of the road and no good reason has been shown why, on the meagre evidence, an appellate court should take a different view. In the circumstances of the case, to say that the probabilities favour the view that both drivers were to blame rather than that one or the other was wholly responsible would be a mere guess. Reliance was, however, placed upon a number of cases which, it was said, laid down some principle of law which supported the appellant's submission. In Hummerstone v. Leary [1] , the plaintiffs were passengers in a motor lorry owned by the defendant Leary. The lorry collided with a motor car driven by the other defendant, Foster, and each plaintiff sued them jointly and in the alternative. The plaintiffs' evidence, if accepted, made it probable that the driver of the car was to blame and at the close of their case the County Court judge who tried the action held that there was no evidence of negligence on the part of Leary and entered judgment in his favour. Foster then called evidence which pointed to the fact that the driver of Leary's lorry was wholly to blame. That evidence was accepted and the judge found in favour of Foster with the result that the plaintiffs filed against both defendants. On appeal it was held that the case should have been "tried out between all the parties". The learned County Court judge had treated the plaintiffs' claims as consisting of one against Leary alone and one against Foster alone "overlooking the fact that the plaintiffs, as they were entitled to do under Order III r. 5 of the County Court Rules, were alleging that either Leary or Foster or both were responsible for the accident". Accordingly a new trial was ordered. That case does not support the appellant's contention. In Bray v. Palmer [1] , the plaintiffs, the rider of a motor cycle and his pillion passenger, were riding along a main road. The defendant was driving in the opposite direction and the vehicles collided head-on in the middle of the road. Each party alleged that the driver of the other vehicle had been negligent. The learned trial judge found that one or the other was wholly to blame but was unable to say which it was and dismissed both the claim and the counterclaim. Notwithstanding the fact that the head-on collision had occurred in the centre of the road, the learned trial judge - to use the phrase of Lord Evershed M.R. - "put aside altogether the possibility of both having been to blame". The Court of Appeal took the view that that possibility should have been considered and for that reason ordered a new trial. The fact that the vehicles had collided head-on in the centre of the road justified an inference that both drivers had been negligent yet this issue of fact had not been considered by the learned trial judge. Here again I can find nothing to support the contention urged by counsel for the present appellant. There is, however, a passage in the judgment of Denning L.J. (as he then was) in Baker v. Market Harborough Industrial Co-operative Society Ltd. and Wallace v. Richards (Leicester) Ltd. [2] , which read apart from the evidence in those cases, appears to lend some support to the appellant's submission. It was there proved that a collision had taken place between two motor vehicles, the one a motor lorry, the other a motor van, being driven in opposite directions. The impact took place in the centre of the road and both drivers were killed. Two actions were brought, one by the widow of the driver of the lorry against the owner of the van, the other by the widow of the driver of the van against the owner of the lorry. The first of these actions was heard by Ormerod J. who was of opinion that the plaintiff had failed to prove negligence on the part of the driver of the van and accordingly gave judgment for the defendant. The other action was tried by Sellers J. who found that both drivers were equally to blame and gave judgment for the plaintiff. In each case the losing party appealed. The Court of Appeal considered that the proper inference to be drawn from the evidence, which was the same in both cases, was that each driver was "hugging the centre of the road and failing to give way to the other". Accordingly it upheld an appeal against the judgment of Ormerod J. and dismissed the appeal in the case tried by Sellers J. Here again it is clear that the inference that both drivers had been negligent arose from the fact that the collision was proved to have occurred in the centre of the road, the most probable explanation being that each driver had failed to keep to his correct side and had failed to keep a proper look out. In the course of his judgment, however, Denning L.J. said: