The engine was taken entirely to pieces. The cistern containing the injection water was raised ten feet; the injection cock, being too small, was enlarged to nearly double its former size, and it was so arranged that it should be shut off quickly at the beginning of the stroke. These and other alterations were necessarily performed in a rough way, but, as the result proved, on true principles. Stephenson also, finding that the boiler would bear a greater pressure than five pounds to the inch, determined to work it at a pressure of ten pounds, though this was contrary to the directions of both Newcomen and Smeaton. The necessary alterations were made in about three days, and many persons came to see the engine start, including the men who had put her up. The pit being nearly full of water, she had little to do on starting, and, to use George’s words, “came bounce into the house.” Dodds exclaimed, “Why, she was better as she was; now, she will knock the house down.” After a short time, however, the engine got fairly to work, and by ten o’clock that night the water was lower in the pit than it had ever been before. It was kept pumping all Thursday, and by the Friday afternoon the pit was cleared of water, and the workmen were “sent to the bottom,” as Stephenson had promised. Thus the alterations effected in the pumping apparatus proved completely successful. Dodds was particularly gratified with the manner in which the job had been done, and he made Stephenson a present of ten pounds, which, though very inadequate when compared with the value of the work performed, was accepted with gratitude. George was proud of the gift as the first marked recognition of his skill as a workman; and he used afterwards to say that it was the biggest sum of money he had up to that time earned in one lump. Ralph Dodds, however, did more than this. He released the brakesman from the handles of his engine at West Moot, and appointed him engineman at the High Pit, at good wages, during the time the pit was sinking,—the job lasting for about a year; and he also kept him in mind for further advancement. Stephenson’s skill as an engine-doctor soon became noised abroad, and he was called upon to prescribe remedies for all the old, wheezy, and ineffective pumping-machines in the neighbourhood. In this capacity he soon left the “regular” men far behind, though they in their turn were very mach disposed to treat the Killingworth brakesman as no better than a quack. Nevertheless, his practice was really founded upon a close study of the principles of mechanics, and on an intimate practical acquaintance with the details of the pumping-engine.