"The course taken by the Court of Appeal immediately casts doubt upon whether it was correct in concluding that, upon the facts as found by the trial judge, the plaintiff had made out a case of negligence against his employer. The only case which he could have made out was one which he sought to put, for a trial is not at large but is of the issues joined by the parties. If the case which the Court of Appeal thought was made out was one which the plaintiff had sought to put on trial, then it may not have been unfair as the Court of Appeal appears to have thought it would have been, for judgment to have been entered for the plaintiff on the appeal and for any question of contributory negligence to have been dealt with then and there. Any element of unfairness can only have arisen from the fact that the case against the employer which the Court of Appeal discerned, was not a case which the plaintiff sought to make at trial and was not, for that reason, a case which the employer had been required to meet. It was not a case which could be met upon appeal because the possibility of calling evidence to meet it was denied to the employer at that stage. More than once it has been held by this Court that a point cannot be raised for the first time upon appeal when it could possibly have been met by calling evidence below. Where all the facts have been established beyond controversy or where the point is one of construction or of law, then a court of appeal may find it expedient and in the interests of justice to entertain the point, but otherwise the rule is strictly applied. In deciding whether or not a point was raised at trial no narrow or technical view should be taken. Ordinarily the pleadings will be of assistance for it is one of their functions to define the issues so that each party knows the case which he is to meet. In cases where the breach of a duty of care is alleged, the particulars should mark out the area of dispute."