Mars, 184 Marsoulas, caves of, 339 Marsupial, 114, 296 Mason bee, 251, 254, 260 Mastodons, 115, 340; “prehistoric,” engraving of, 340 Material, 193, 194, 207, 214; functions, 214; organism coöperates intrinsically in organic substrate, 224; sense of term, 193, 194; substance, inaccessible to senses, 207 Materialism, 178, 199, 212, 214, 236, 352, 355, 357, 358, 361; a purely academic philosophy, 211; attempt to gloss over, 207; Darwinian, 236; evolutionary, 360, 361; its destructive effect on religion, ideals and morality, 361; parasitic, 358 Materialistic, 207, 351-356, 357; philosophy ignores active rôle of mind, 207; view of human nature unnatural and intolerable—complete and consistent application impossible, 357; view make morality unthinkable—antisocial, 351-356 Material organ cannot be effected by the supersensible, 222 Matterhorn, 109 Materialist, 230 Materialists, many evolutionists are avowed, 351 Matter, 71, 173, 174, 179, 181, 186, 194, 199, 200, 204, 210; a constant in inorganic units, 175; a source of indeterminism, 71; a variant in living organisms, 175; constant in chemical reactions, variant in metabolism, 199, 200, 210; does not coincide with sum total of reality, 186; initial vivification of, due to supermaterial agency, 179; inorganic, 181; not more real than mind, 204; notions of, 200; ponderable and imponderable, 194 Maturity, 155 Mauer, 318 Mayflies, 115 Means, 254, 259 Measles, invisible germ of, 169 Mechanics, 350 Mechanism, 153, 154, 171, 179, 250; environmental, 153; teleological but simple, 153, 154 Mechanist, 58, 200, 204, 351; many evolutionists are avowed, 351 Mechanistic universe, 350 Media, 136 Medium, vibrant, 213 Meganeura monyi Brogn, 115 Meiosis, 25, 42, 157 Melia, 261 Melocrinidae, 92 Membrana nictitans, 296, 297; not functionless, 297 Memory, 213, 238, 242, 243; associative, 238; sensitive, 242, 243; sentiment, 238, 242 Men, 318, 325, 328, 329; and apes, link between, 318 —intermediate between, 318; fossil, 325; of Krapina, 325, 328, 329 Mendelism, 3, 24, 25, 26, 28, 42, 46, _note_, 57, 349 Mental protuberance, 272 Mental states, 205 Merosthenic, 270 Mesonephric duct, 281, 282 Mesonephros, 280, 281, 282, 284 Mesozoic, 73, 104 _note_, 118, 119, 335; lowest series of, 119; middle system of, 119 Metabolism, 57, 139, 210, 211, 227, 228; destructive and constructive, 137 Metagenesis, 122 Metamorphosis, 123, 283 Metamorphism, 89, 126; of rocks, 126 Metanephros, 280, 282 Metaphysical, 351