This need not, indeed, be absolute. The determination to regard things mechanically alone renders them unintelligible. Science becomes unscientific when it refuses to be guided by experience; and we have the plainest testimony of consciousness to the working in ourselves of originative faculties independent of, and irrepressible by, physical agencies. Here we hold the clue to the labyrinth. The intimation conveyed is distinct of a Power outside nature, continually and inscrutably acting for order, elevation, and vivification. FOOTNOTES: [Footnote 119: Hewitt, _Problems of the Age_, p. 105.] [Footnote 120: Pasteur, _Annales de Chimie et de Physique_, tome xliv., p. 6, 1862.] [Footnote 121: _Popular Lectures and Addresses_, vol. ii., p. 198.] [Footnote 122: _Report British Association_, 1870, p. 84.] [Footnote 123: _Collected Essays_, vol. i., p. 153] [Footnote 124: Neumeister, _Betrachtungen über das Wesen der Lebenserscheinungen_, 1903.] [Footnote 125: Owen, _Palæontology_, pp. 11, 14.] [Footnote 126: _Gifford Lectures_, p. 46.] [Footnote 127: _Geology_, vol. ii., p. 22.] INDEX Alexander, structure of the Milky Way, 214 Amœba, versatile organization, 274-5 Anaximander, generalized matter, 5 Anaximenes, air as the 'Urstoff,' 4, 151 Aristotle, conception of nature, 8; solid spheres, 13 Asteroids, orbital relations, 236 Babinet, objection to Laplace's cosmogony, 44 Bacon, elemental triad, 151 Ball, Sir Robert, mechanics of a condensing nebula, 79, 209-10 Barnard, discoveries of nebulæ, 212; observations of the Gegenschein, 259 Becquerel, detection of radio-activity, 157, 162 Bessel, astronomy of the invisible, 141 Bode's law of planetary distances, 26 Brorsen, the zodiacal counterglow, 259 Bruno, a platonic pantheist, 9 Buffon, cometary impacts, 61; fossil foraminifera, 275 Campbell, system of ζ Geminorum, 113; number of spectroscopic binaries, 143; density of nebulium, 153 Chladni, meteoric cosmogony, 118 Comets, position in Cartesian system, 12-13; in that of Laplace, 136; origin, 73-4, 252-4; meteoric relations, 122-4, 133; solar dependants, 133, 140, 236, 251; nebular affinities, 137, 254-5; insignificant mass, 242 Cosmogony, primitive, 1-3, 14; philosophical, 3-7; scientific, 7, 15; of Descartes, 11-13, 60; Kant's, 21-28, 61-2, 252, 254; Laplace's, 29-33, 38-53, 57-61, 138, 235; Herschel's, 35-7, 136, 199-201; Faye's, 68-76, 81, 129; Lockyer's, 125-134; sidereal, 105-7, 145-7, 217-230 Crookes, Sir William, protyle, 5, 149; radiant matter, 154, 156-7; future of the world, 163 Curie, Madame, discovery of radium, 162 Dalton, combining equivalents, 152 Dark stars, 141, 226-7 Darwin, condensation of nebulous rings, 42, 51; history of earth-moon system, 87-92, 94, 97, 142; equilibrium of rotating globes, 102, 104-5, 112, 143; fluid pressure on meteor-swarms, 129, 131; spiral nebulæ, 205