“The defenders also argued that the arbiters were bound to take into consideration, in fixing the amount to be paid for the ground, that the access would not be shut up, as the railway was to be carried over it by a bridge. That is not among the questions reserved in the minute of agreement and submission, and I cannot deal with it in this action. I apprehend that if the defenders desire to raise the question they must take proceedings to have the decree-arbitral set aside.”