Arum, the, described, 161, 162; its root, 163; its alimentary properties, 163; its various species, 164, 165. Asterisms, origin of, 14. Atmosphere, the, illumination of, 313. Autumn, aspect of nature in, 366, 367. Bailey, P. J., the poet, quoted, 3. Balfour, Professor J. H., quoted, 208; on the diffusion of plants, 321-324. Bearded pink. _See_ SWEET WILLIAM. Birds, number of the species of, 359, 360. Black Hellebore, the, described, 168. Boehm, M. Joseph, his theory of the rise of sap, 136, 137. Boletus, the, of the Romans, 334. Boraginaceæ, the, characteristics of, 239-241. Bosc, the French naturalist, his reference to the alimentary properties of the Arum, 163; his career sketched, 163. Boyle, Robert, on the contemplation of the universe, 101, 102. Bradley, the astronomer, his discovery of the nutation of the earth, 12. Browning, Mrs E. B., her poetry characterised, 337; her "Aurora Leigh" quoted, 337, 338. Bug, the harvest, description of, 349-352. Burton, of the "Anatomy of Melancholy," quoted, 240. Buttercup, the, its bulbous roots, 166; its stimulating properties, 167. Byron, Lord, the poet, quoted, 101. Cæsalpin, the botanist, on the _Solanum nigrum_, 86. Callisto, the legend of, 9. Calypso, the island of, referred to, 19. Calyx, the, of flowers, parts of, 211. Campbell, Thomas, the poet, quoted, 236, 237. Candolle, De, his opinions on the nature of red snow, 41, 42. Cardinal points of the compass, how to ascertain our position in reference to the, 7, 8; process of determination of the, 17-19. Carew, Thomas, the poet, quoted, 100. Carnations, characterised by Jeremy Taylor and Drayton, 371; described, 372; varieties of, 373. Carnivora, the, distribution of, 358. Cassini, Jacques, his theory of the earth's form, 111, 112. Castle pink, the, described, 375, 376. Castelnau, the Count of, quoted, 363, 364. Cereals, the, range of, 323, 324. Cetacea, the, distribution of, 358; described, 208-215; curious forms of, 220-223. Chaldeans, the, their conception of the earth's shape, 105. Chamois, the, described, 56, 57. Chaucer, the poet, his description of the daisy quoted, 138, 140. Cheese mite, the, where found, 354; its ugly form, 355, 356. Chomel, the botanist, on the medical properties of the daisy, 146, 147. Chlorophyll, experiments in, 368, 369. _Chrysomela salicinia_, the, described, 72. Clare, John, the Northamptonshire poet, on the dragon-fly, 175. Clematis, the, described, 168; celebrated by Keats, 168. Columbus, Christopher, his demonstration of the existence of the Antipodes, 108, 109. Compass, the, points of, 7.