But here Orney had anticipated, and prepared: he produced a ribbon of paper, marked with regularly spaced pen-lines, each neatly indexed with a number: 50, 100, 200, and so on. It was a scale that he had drawn up, demarcated not in feet, furlongs, or miles, but in revolutions of the wheel of Mr. Marsh’s vault-wagon. By snaking it down the road drawn on the map (for the road was not perfectly straight) he was able to show that, at a place near the eighty mark, there was an intersection with a smaller road. "That must be it," Kikin said, and reviewed a spate of Cyrillic notations. "Yes, west-southwest for fifty ticks—then an elbow in the road, bringing us round to almost due south—three hundred and thirty ticks later we went up and over a stone bridge."