A Scotch dominie, named Andrew Robertson, set up a night-school in the village of Newburn in the winter of 1799. It was more convenient for George to attend this school, as it was nearer his work, being only a few minutes' walk from Jolly's Close. Besides, Andrew had the reputation of being a good arithmetician, and this was a branch of knowledge that Stephenson was very desirous of acquiring. He accordingly began taking lessons from him, paying fourpence a week. Robert Gray, junior fireman at the Water-row Pit, began arithmetic at the same time; and Gray afterward told the author that George learned "figuring" so much faster than he did, that he could not make out how it was--"he took to figures so wonderful." Although the two started together from the same point, at the end of the winter George had mastered "reduction," while Robert Gray was still struggling with the difficulties of simple division. But George's secret was his perseverance. He worked out the sums in his by-hours, improving every minute of his spare time by the engine-fire, there studying the arithmetical problems set for him upon his slate by the master. In the evenings he took to Robertson the sums which he had "worked," and new ones were "set" for him to study out the following day. Thus his progress was rapid, and, with a willing heart and mind, he soon became well advanced in arithmetic. Indeed, Andrew Robertson became very proud of his scholar; and shortly after, when the Water-row Pit was closed, and George removed to Black Callerton to work there, the poor schoolmaster, not having a very extensive connection in Newburn, went with his pupils, and set up his night-school at Black Callerton, where he continued his lessons.