Shortly after he had brought his loom to perfection, a manufacturer who had called upon him to see it at work, after expressing his admiration at the ingenuity displayed in it, remarked, that wonderful as was Dr. Cartwright's skill, there was one thing that would effectually baffle him, and that was, the weaving of patterns in checks, or, in other words, the combining in the same web a pattern or fancy figure with the crossing colours which constitute the check. The doctor made no reply to this at the time; but some weeks afterwards, on receiving a second visit from the same person, he showed him a piece of muslin, of the description mentioned, beautifully executed by machinery, which so astonished the man, that he roundly declared his conviction that some more than human agency must have been called in on the occasion.[11] Dr. Cartwright being precluded by his clerical character from entering himself into the manufacture of his machines, a weaving factory was erected at Doncaster, by some friends, with his licence, but it was unsuccessful; and another establishment, built at Manchester, containing 500 looms, was destroyed by an exasperated mob in 1790. Cartwright, however, still continued his inventions, and shortly afterwards contrived a wool-combing machine, which met with even fiercer opposition from the working-classes, who went the length of petitioning parliament to suppress all such obnoxious machines. Their great utility, however, caused them by degrees to be generally adopted; and at the time of Cartwright's death, steam-looms had increased so rapidly, that they were performing the work of 200,000 men. Notwithstanding the great advantages which the cotton and wool manufacturers reaped from these inventions, their author had as yet obtained no emolument from them, but, on the contrary, had incurred a heavy loss. In consideration of this, and on the petition of several influential cotton-spinners, Parliament in 1810 made the doctor a grant of 10,000_l._--a sum which, although munificent as a present, hardly covered what he had expended in his experiments. Having received the sum awarded by Parliament, and being now sixty-six years of age, Dr. Cartwright was desirous of passing the remainder of his life in retirement and tranquillity, and for this purpose purchased a small farm at Hollenden, in Kent. At this place he spent the remainder of his life, occupied in various scientific and mechanical experiments. Dr. Cartwright was the author of many other inventions in the arts and agriculture, for some of which he received premiums from the Board of Agriculture and Society of Arts. He also contrived an ingenious modification of the steam-engine, in which he made use of _surface condensation_, and metallic spring packing for the piston.