After a time, he built a lovely home at Heathfield, in the midst of forty acres of trees, flowers, and tasteful walks. Here gathered some of the greatest minds of the world,--Dr. Priestley who discovered oxygen, Sir William Herschel, Dr. Darwin, Josiah Wedgwood, and scores of others, who talked of science and literature. Mrs. Watt so detested dirt, and so hated the sight of her husband's leather apron and soiled hands, that he built for himself a "garret," where he could work unmolested by his wife, or her broom and dustpan. She never allowed even her two pug-dogs to cross the hall without wiping their feet on the mat. She would seize and carry away her husband's snuff-box, wherever she found it, because she considered snuff as dirt. At night, when she retired from the dining-room, if Mr. Watt did not follow at the time fixed by her, she sent a servant to remove the lights. If friends were present, he would say meekly, "We must go," and walk slowly out of the room. Such conduct must have been about as trying as the failure of his engines. For days together he would stay in his garret, not even coming down to his meals, cooking his food in his frying-pan and Dutch oven, which he kept by him. One cannot help wondering, whether, sometimes, as he worked up there alone, he did not think of Margaret, whose face would have brightened even that dingy room. A crushing sorrow now came to him. His only daughter, Jessie, died, and then his pet son, Gregory, the dearest friend of Humphry Davy, a young man of brilliant scholarship and oratorical powers. Boulton died before his partner, loved and lamented by all, having followed the precept he once gave to Watt: "Keep your mind and your heart pleasant, if possible; for the way to go through life sweetly is not to regard rubs." Watt died peacefully Aug. 19, 1819, in his eighty-third year, and was buried in beautiful Handsworth Church. Here stands Chantrey's masterpiece, a sitting statue of the great inventor. Another is in Westminster Abbey. When Lord Brougham was asked to write the inscription for this monument, he said, "I reckon it one of the chief honors of my life." Sir James Mackintosh placed him "at the head of all inventors in all ages and nations"; and Wordsworth regarded him, "Considering both the magnitude and the universality of his genius, as perhaps the most extraordinary man that this country has ever produced." After all the struggle came wealth and fame. The mine opens up its treasures only to those who are persevering enough to dig into it; and life itself yields little, only to such as have the courage and the will to overcome obstacles.