"I pass my time between Greenwich and London, agreeably enough, but am rather at a loss for work that I like. Company is not always pleasing, and I would much rather be polishing a speculum.... I am introduced to the best company. To-morrow I dine at Lord Palmerston's, next day with Sir Joseph Banks, etc., etc. Among opticians and astronomers nothing now is talked of but _what they call_ my great discoveries. Alas! this shows how far they are behind, when such trifles as I have seen and done are called _great_. Let me but get at it again! I will make such telescopes, and see such things--that is, I will endeavor to do so." And this great ambition nerved him for action, continued and laborious, as long as he lived. He was never satisfied; always achieving. Little can be expected from those who are easily satisfied. George III. wisely appointed Herschel Royal Astronomer, though with the too small salary of one thousand dollars yearly. He came back to Bath only to perform the last musical duty on Whit Sunday, 1782, the anthem for the day being his own composition, and to say good-by to his pupils. He moved to Datchet in 1782, and set up his twenty-foot telescope. In 1783 he had made three reviews of the heavens. In 1784 he made a fourth review with his twenty-foot telescope. Caroline says: "My brother began his sweeps when the instrument was yet in a very unfinished state, and my feelings were not very comfortable when every moment I was alarmed by a crash or a fall, knowing him to be elevated fifteen feet or more on a temporary crossbeam, instead of a safe gallery. The ladders had not even their braces at the bottom; and one night, in a very high wind, he had hardly touched the ground before the whole apparatus came down.... I could give a pretty long list of accidents which were near proving fatal to my brother as well as myself." A gentleman who visited him at Datchet wrote: "The thermometer in the garden stood at 13° Fahrenheit; but in spite of this, Herschel observes the whole night through, except that he stops every three or four hours and goes in the room for a few moments. For some years Herschel has observed the heavens every hour when the weather is clear, and this always in the open air, because he says that the telescope only performs well when it is at the same temperature as the air. He protects himself against the weather by putting on more clothing. He has an excellent constitution, and thinks about nothing else in the world but the celestial bodies." But, occupied as Herschel was about "celestial bodies," he yet found time to think about earthly things, for we find him at forty-five, May 8, 1783, marrying Mary, the wealthy widow of John Pitt, Esq., a lady of much intelligence and amiability.