_Man's Place in Nature_, 147, 148 Manes and Manicheism, 265 Mantle of molluscs, 58 _Manual of the Anatomy of Invertebrated Animals_, 175 _Manual of the Anatomy of Vertebrated Animals_, 175 Marine embryos, 176 Marmosets, 163 Marriage, 19, 274 Marsh, Professor, 70-78 Marsupials, 141 Mason, Sir Josiah, 185 Materialism, 217, 220, 222, 225, 227 Matter and ideas, 224 Matter, nature of, 219-221 Matthew, Patrick, 100 Mauritius, 18 Medical education, 167, 181, 184 Medical students, 181, 279 Medusæ, 33, 39, 40, 41, 42, 96, 123 Membrane bones, 134 Mental capacity of apes, 152 Mercy, 265 Mertens, 56 Mesohippus, 77 Metals, transmutation of, 257 Metaphysics, 241 Metaphysics and science, 217 Metatheria, 142 Methods in histology, 177 Microscope, 32, 176 Microtomes, 177 Milton, 213 Mind and body, 220 Mind, growth of, 210 Miohippus, 76 Miracles, 246, 254-259 Missionary spirit, 262 Mitral valve, 175 Mivart, Dr. St. George, 246-248 Modern spirit, 241 Modification of species, 92 Mollusca, 56, 58, 59, 60, 61, 96 Morality and religion, 237, 238 Morality of Stoics, 238 Morley, John, 217, 260 Mosaic Deluge, 235 Moseley, Professor H.N., 15 Mucous layer of germ, 43 Müller, Johannes, 6, 37, 56 Music, 278 N Naples, International Zoölogical Station at, 176 Naturalism, 226 Natural selection, 94, 99, 100, 103, 105, 124-127 Nature, continuity of, 255 Nature, history of, 248 Nature, state of, 266 _Nature_, 211 _Naval Architecture and Timber_, 100 Nebular hypothesis, 230 Newman, Cardinal, 240 New Testament, 253, 254 Nirvana, 272 Noah's Deluge, 235 Notochord, 134 Notogœa, 140 O Oken, 130, 132, 133 Old Testament, 90 Omar, 272 Optimism, 270 Orangs, 149 Order of nature, 255, 258 Organic _versus_ Inorganic, 229 Organon, 242 Origin of species, 89, 95, 101, 102, 110 _Origin of Species_, reviews of, 113, 114, 115, 146 Ormuzd, 265 Ornithology, 136 Ornithorhynchus, 156 Ornithoscelida, 69 Orohippus, 77 Orthodoxy, 246 Owen, Sir Richard, 65, 66, 115, 118-121, 131, 133, 136, 145, 146, 162 Oxford, 120, 125, 263, 264 Oxford, Bishop of, _see_ Wilberforce P Pain, 268, 270, 271 Palæontology and evolution, 68, 86 Palæotherium, 74 Paley, 230 Pascal, 122 Payment of teachers by results, 195 Pelagic life, 30, 31 Pelvis of man and gorilla, 161 Pentateuch, 234, 244 Pessimism, 270 Phillips, Professor, 69 _Philosophic Zoölogique_, 97, 98 Philosophy, Huxley's advice on, 218 Phosphorescence, 55 Physical education, 189 Physical geography, 170 _Physics_ of Aristotle, 100 _Physiography_, 171 Physiology, 172 Pigafetta, 149 Pigmies, 149 _Pioneers of Evolution_, 127 Plankton, 30, 31 Plato's Archetypes, 59 Plato's philosophy, 224 Pliohippus, 76 "Portuguese man-of-war," 41, 50 Possibilities in logic, 258 Poulton, Professor E.B., 109, 127 Prayer, efficacy of, 258 Priestley, Joseph, 239 Primers of science, 171 Primitive groove, 135 _Principles of Geology_, 234 Professional education, 183