Illustrations of Universal Progress · Herbert Spencer
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Saturn, rings of, 276. Satellites, distribution of, 272-276. Savage men need a savage deity, 443. Science, limits of, 58; definition of, 119; when complete, 120; test of the depth of, 122; slow growth of, 123; duplex progress of, 141; ultimate analysis of exact, 160. Sciences, early simultaneous advance of, 165; not independent of each other, 186; aid each other by analogies, 181; mutual influence of modern, 178. Sculpture and painting, origin of, 20. Solar System, movements of planets on their axes in, 267-271. Strata now forming, lithological differences in, 347; differences in the order of superposition of, 348; differences in the organic remains of, 349. Societies and individual organisms, points of agreement between, 391-393; differences of, examined, 393-397. Social intercourse, philosophy of, 105. Social changes, true source of, 386. Spectrum analysis, 295. Spiral nebula, 255. Steam-engine, multiplied effects of, 53. Sun, constitution of, 294, 296; relation of plane of its equator to plane of planetary orbits, 266. Telegraph wires, comparison of to nerves, 427. Titles, derivation of, 72; depreciation of, 74. Truth, ultimate test of, 130. Useful passes into the beautiful, 430, 433. Voice, cause of loudness of, 215; cause of quality of, 215; of pitch of, 216; intervals in, 217; variability of the pitch of, 219. Voluntary and involuntary actions, 319. Werner's system of Geology, 328; contrast of, with the modern system, 330.
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