Living thing, not a machine, 1-3, 212-214; viewed as a machine, 34-37, 224-228; a unit, 215; adaptation, 215, 216; contrasted and compared with a machine, 241, 242. Lodge, Sir Oliver, 183, 197; his view of life, 17, 18, 34, 132, 161, 219, 237; his vein of mysticism, 34; on the ether, 62, 63, 66; on molecular spaces, 65; on radium, 201; on the atom, 203; on electrons, 203. Loeb, Jacques, on mechanism, 10-13, 73; his experiments, 74, 76, 79, 147; on variations, 148. Machines, Nature's and man's, 224-226; contrasted and compared with living bodies, 241, 242. Maeterlinck, Maurice, on the Spirit of the Hive, 82. Man, evolution of, 246-251; as the result of chance, 255; as a part of the natural order, 258, 259; his little day, 269. Matter, as acted upon by life, 8, 9; creative energy immanent in, 9; change upon entry of life, 39; constitution of, 43, 44, 46-48; a state of the ether, 63; changes in, 131, 133; Emerson on, 188; discrete, 196; emanations detected by smell and taste, 198, 199; a hole in the ether, 203; origin of its properties, 204-206; a higher conception of, 259-261; common view of grossness of, 274, 275. Maxwell, James Clerk, on the ether, 63; on atoms, 198. Mechanism, the scientific explanation of mind, 5; and ethics, 12; reaction against, 32; definition, 72; Prof. Henderson's view, 88, 89; _vs._ vitalism, 212-243. _See also_ Life. Metaphysics, necessity of, 101. Micellar strings, 217. Microbalance, 60. Mind, evolution of, 287, 288. _See also_ Intelligence. Molecules, spaces between, 65, 196; speed, 192; unchanging character, 205, 206. Monera, 285. Moore, Benjamin, a scientific vitalist, 106; his "biotic energy," 106-113, 145, 146. Morgan, Thomas Hunt, 148. Motion, perpetual, 190, 191, 278; mass and molecular, 269, 270. Naegeli, Karl Wilhelm von, 217. Nitrogen, 51. Nonentities, 99, 100. Odors, 198, 199. Osmotic growths, 167, 168. Oxygen, activities of, 51, 52, 59; in the crust of the earth, 193; chemical affinities, 193-195; different forms of atoms, 200. Parker, Theodore, on the universe, 280. Parthenogenesis, artificial, 11, 74. Pasteur, Louis, his "dissymmetric force," 22, 32. Philosophy, supplements science, 94-96, 104, 109, 163, 164; deals with fundamental problems, 242, 243; contradictions in, 254-258. Phosphorus, 59, 60. Physics, staggering figures in, 192. Pitch lake, 123. Plants, force exerted by growing, 17-20. Plasmogen, 145, 146. Plastidules, 217. Protobion, 135. Protoplasm, vitality of, 169; creative, 286. Radio-activity, 66-70, 132. Radium, 61, 201. _See also_ Beta rays. Rainbow, 70. Ramsay, Sir William, 191, 192. Rand, Herbert W., on the mechanistic view of life, 89, 90. Russia, 250, 251. Salt, crystallization, 276, 277. Schaefer, Sir Edward Albert, 73; his mechanistic view of life, 133-138.