When he was forty-three, he says, "I began to construct a thirty-foot aërial reflector, and, having made a stand for it, I cast the mirror thirty-six inches in diameter. This was cracked in cooling. I cast it a second time, and the furnace I had built in my house broke." But he persevered. This same year, 1781, after he had lived in Bath nine years, on the night of Tuesday, March 13, having removed to a larger house, 19 New King Street, he says, "In examining the small stars in the neighborhood of _H. Geminorum_ I perceived one that appeared visibly larger than the rest; being struck with its uncommon appearance, I compared it to _H. Geminorum_ and the small star in the quarter between Auriga and Gemini, and, finding it so much larger than either of them, I suspected it to be a comet." The orbit of this "comet" was computed and its distance from the sun found to be eighteen hundred million miles! The world soon awoke to the fact that a new planet had been found, the greatest astronomical discovery since Galileo invented the telescope, and the unknown musician at Bath had become famous! So little was Herschel known at this time, that one journal called him Mersthel, another Herthel, and still another Hermstel. In December of the same year, 1781, Herschel was elected a Fellow of the Royal Society and received the Copley gold medal. He was no longer the poor German youth playing the oboe among the guards; he was the renowned discoverer. He called the planet Georgium Sidus, in honor of his sovereign, George III., but it was decided later to call it Uranus, from Urania the muse of astronomy. Herschel went eagerly on with his work. Fame did not change his simple nature. The truly great are never ostentatious. He erected in his garden a stand for his twenty-foot telescope, and perfected his mirrors. "Though at times," says Caroline, "much harassed with business, the mirror for the thirty-foot reflector was never out of his mind, and if a minute could but be spared in going from one scholar to another, or giving one the slip, he called at home to see how the men went on with the furnace, which was built in a room below, even with the garden." The next year, 1782, Herschel went to London, and met with a gracious reception from George III. He wrote back to his devoted sister: "Dear Lina: All my papers are printing, with the postscript and all, and are allowed to be very valuable. You see, Lina, I tell you all these things. You know vanity is not my foible, therefore I need not fear your censure. Farewell. "I am your affectionate brother, "WM. HERSCHEL." Again he wrote,--