The boys drew off in a body, and a sum was fixed upon and worked out with a great deal of discussion.
At last, after a quarter of an hour's work, when all had gone through it and agreed that it was correct, they returned and said to him, "Multiply 324,683 by 459,852." Jack thought for a few seconds and then taking the pencil and paper wrote down the answer: 149,306,126,916.
"Why, Jack, thou be'est a conjurer," one exclaimed, while the others broke out into a shout of astonishment.
From that time it became an acknowledged fact that Jack Simpson was a wonder, and that there was some use in studying after all; and after their games were over they would sit round and ask him questions which they had laboriously prepared, and the speed and accuracy of his answers were a never-failing source of wonder to them.
As to his other studies they never inquired; it was enough for them that he could do this, and the fact that he could do it made them proud of him in a way, and when put upon by the pitmen it became a common retort among them, "Don't thou talk, there's Jack Simpson, he knows as much as thee and thy mates put together. Why, he can do a soom as long as a slaate as quick as thou'd ask it."
Jack himself laughed at his calculating powers, and told the boys that they could do the same if they would practise, believing what he said; but in point of fact this was not so, for the lad had an extraordinary natural faculty for calculation, and his schoolmaster was often astonished by the rapidity with which he could prepare in his brain long and complex calculations, and that in a space of time little beyond that which it would take to write the question upon paper.
So abnormal altogether was his power in this respect that Mr. Merton begged him to discontinue the practice of difficult calculation when at work.
"It is a bad thing, Jack, to give undue prominence to one description of mental labour, and I fear that you will injure your brain if you are always exercising it in one direction. Therefore when in the pit think over other subjects, history, geography, what you will, but leave calculations alone except when you have your books before you."
