Multimolecule, 58, 144, 162, 165, 166, 168, 170, 179; are not units, 165; colloidal, 166; crystalloidal, 165, 166; not a link between molecules and cells, 179; structure of, 58 Murder, as an experiment, 359 Muscles, 298 Mutants, 16, 17, 18, 19, 20, 21, 22, 23, 27, 87; chromosomal, 17, 21, 22, 23 —balanced and unbalanced, 21, 22 —balance, odd and even, 22 —status as “new species” not established, 23; factorial, 17, 18, 19, 20; pseudo, 17, 27 Mutation, 16, 16 _note_, 26, 42, 86, 88, 122, 265, 303, 305, 307, 334; changes of loss, 18, 43; chromosomal, 17, 42, 44, 45, 88; factorial, 19, 20, 42, 44, 45, 88, 305, 334 —a varietal, not a specific change; fortuitous, 265; heritable, 16, 303, 334; pseudo, 17, 42, 88 Mutation, 16, 20, 46; Theory, 16, 20 Myxœdema, 294 Nahun beds, 95 Natural explanations, 69, 70 Naturalism borrows moral standards, 358 Natural process, 69, 74 Natural science, 186 Natural Selection, 9, 11, 12, 13, 29, 30, 152, 153, 305, 306, 350; a theory of chance, 11, 350; has no positive efficacy, 153; theory has impeded progress of science, 13 Nature, 151, 185; inorganic impotent to duplicate even laboratory synthesis, not to speak of vital phenomena, 151 —lacks means of self-vivification, 185; not automatic, 151 Nautilus, 118, 283 Neanderthal, 314, 315, 317, 325, 326, 329, 330, 331, 332, 333, 335, 337, 342; bone, show some racial characteristics, 329; cranium, 331, 332 —capacity underestimated, 333, not ancestral to Cro-Magnon type, 335; not more ancient than modern type, 337; remains, 325, 332 —human, 325; skull, cranial capacity of, 314, 325; type of, 330, 332 Neanderthal Man, 314, 315, 317, 323, 326, 341, 342; distinctly human, 342; a dwarf, 314; No. 1, 323, 326; divided opinion on, 324; No. 2, skeleton, 326 —skull missing, 326 Neanderthal type, 326, 330, 332, 333, 334, 336; alleged to be distinct species, 332; alleged to be more ancient, 334; degenerate, 336; differences, 334; race, 334; no longer considered oldest type, 336 Neanderthaloid, 328, 333, 341, 343; characteristics occur in modern skulls, 333; race, 343; skulls, modern features occur in, 333 Nebular, hypothesis, 181 Negroes, 334 Neo-Darwinism, 10 Neo-Kantian, 203, 219; phenomenalist, 203 Neo-Lamarkism, 10, 12, 15 Neolithic, 332 Neontologists, 76 Neotoma, 307 Neo-vitalism, 171, 201, 202; postulates a unique force, an agent “sui generis,” 171 Neo-vitalists, 58, 200, 201; regard vital principle as force “sui generis,” a unique agent, 200, 201 Nephridia, 280 Neptune, 184 Nerve plasm, 265