peaceful labours of Caroline's long life, of the strife and turmoil of the French Revolution, is the note she makes of the visit, to her brother's observatory, of the Princesse de Lamballe. "About a fortnight after this," the diarist observes, "her head was off." The absence of all comment upon the wonderful political events of the time is noticeable, and so also is Caroline's thinly-veiled contempt for any science less sublime than that to which she and her brother were devoted. Her youngest brother, Dietrich, was a student of the insect world. "He amuses himself with insects," she wrote to her nephew; "it is well he does not see the word amuses, for whenever he catches a fly with a leg more than usual, he says it is as good as catching a comet." Her brother's marriage, though far from welcome at the time it took place, was a great blessing to her; for it gave her a most tender and affectionate sister, and ultimately a nephew, the inheritor of his father's great gifts, and the being to whom, after William Herschel's death in 1822, Caroline transferred all the devoted and passionate attachment of which her nature was capable.
The great mistake of her life was going back to Germany after Sir W. Herschel's death in 1822. She was then seventy-two years of age, and the previous fifty years of her life, containing all her most precious memories and associations, had been spent in England. In this country, also, were all those who were dearest to her. Yet, no sooner was her brother dead, than she felt life in England to be an impossibility. She little thought that she had still twenty-six years to live; indeed she had long been under the impression that her end was near, but while her brother lived she kept this to herself, because she wished to be useful to him as long as she possibly could. She never really re-acclimatised herself to Germany. "Why did I leave happy England?" she often said. The one German institution she thoroughly enjoyed was the winter series of concerts and operas, which she constantly attended, and she mentions with pleasure, in her letters, that she was "always sure to be noticed by the Duke of Cambridge
