Herschel, Sir John, first mention of, 104; at Cambridge, 117; senior wrangler, 120; member of the University of Göttingen, 125; ascends Mount Etna, 172; at Munich, 175; visits his aunt, 177, 293; Secretary to the Royal Society, 181; at Montpelier, 201; catalogue of double stars, 213; his marriage, 236; describes his aunt, 254; anecdotes of his boyhood, 259; letters from the Cape, 263; sweeping, 266; the Milky Way, 270; Halley’s comet, 283; spots on the sun, 286, 287; Saturn’s sixth satellite, 288, 289; returns to England, 292; created a baronet, 305; on the Orionis star, 316; eclipse of the sun in 1842, 327; his chrysotype pictures, 327; translation of Schiller’s “Walk,” 328, 329; acknowledges his aunt’s history, 333. Herschel, Lady, letters from Miss Herschel, 152 _et seq._; her death, 252. Herschel, Sir William, early display of talents, 3; proficiency in music, 7; accompanies his regiment to England, 8; resides at Bath, 21; fetches his sister Caroline, 26; his musical compositions, 36; erection of the twenty-foot telescope, 37; discovers the Georgium Sidus, 39; casting of the great mirror, 43; goes to London and is introduced to the King, 45; Royal Astronomer, 50; limited salary, 50; removes to Datchet, 50; to Clay Hall, 57; to Slough, 58; the Georgian Satellites, 74; marriage, 78; observations on his sister’s comet, 84, 85; his failing health, 124; sits for his portrait, 129; death, 133. Hesse, Princess of, letter to Miss Herschel, 267. Humboldt, Alex. von, letter to Miss Herschel, with the Gold Medal for Science from the king of Prussia, 336, 337. Knipping, Mme., extract from letter upon Miss Herschel’s death, 346. La Lande, J. de, letter to Miss Herschel, 89; her answer, 91. Lind, James, 100. Morgan, A. de, letter from Miss Herschel on being elected Hon. Member of the R. A. Society, 271. Mars, observations on, 53. Maskelyne, Rev. Dr., letter from Miss Herschel, on discovering her second comet, 80; on the Index to Flamsteed’s Observations, 96. Nebulæ, the, 196-198. Nebulæ, the Cape, and double stars, 328. Ole Bull, the violinist, 306. Orange, Prince of, at Slough, 99. Orionis, α, a variable and periodical star, 316. Piazzi, Abbé, at Slough, 55; at Catania, 173. Pigott, Ed., letter to Miss Herschel on the Flamsteed Catalogue, 101. Railway, first, between Hanover and Braunschweig, 334. Ross, Capt., his return with the South Polar Expedition, 333, 334. Schiller’s “Walk,” translated by Sir J. Herschel, 328, 329. Schumacher, Prof., letter from Miss Herschel, 260. Scorpio, 258, 266. Seyffer, Prof., letter to Miss Herschel, 92. Somerville, Mrs., letter to Miss Herschel, with her “Connexion of the Physical Sciences,” 274.