INDEX 



221 



Moira, 202 



Molecular replacement, 12 



Mollusca, 15, 1 6, 32 



cainozoic, 203 



deuterozoic, 166 



fluviatile, 83 



habitat, 87 



mesozoic, 186 



proterozoic, 143 



terrestrial, 82 

 Monactinellida, 128 

 Monocyclica, 137, 161 

 Monograptidae, 80 

 Monogra^tus, 132, 160 

 Monticuliporoids, 140, 163 

 Montlivaltia, 178 

 Morphoceras, 192 

 Morphogeny, 90 

 Morphology, 93 

 Mother-of-pearl, 18, 40 

 Mottled clay, 27 

 Moulds, 1 8, 42 



artificial, 64 

 Mull, Isle of, 175 

 Murchison, 74 

 Murchisonia, 147, 168 

 Musculus, 1 86 

 Mussels, 145 

 My a, 205 

 Myophoria, 188 

 Mytilidae, 86 

 Mytilus, 189, 204 



Naiadites, 167 

 Naming fossils, 68 

 Nassa, 206 

 Nasselaria, 128 

 Natica, 190 

 Naticidae, 206 

 Naticopsis, 168 

 Native fossils, 10 

 Natural philosophy, 7 

 Nautiloidea, 106 



deuterozoic, 169 



mesozoic, 191 



proterozoic, 147 

 Nautilus, 107, 147, 191, 207 

 Neanic stage, 108, 116 

 Needles, 62 

 Neotremata, 142, 164 

 Nepionic stage, Ji6 

 Neptunea, 206 

 Nereids, 48 



Nerinea, 191 

 Nerita, 206 

 Neritina, 206 

 Newton, 113 

 Nodules, 36 

 Nomenclature, 69 

 Nucleocrinus, 161 

 Nucleolites, 183 

 Nucleolitpida, 182 

 Nucleospirci) 143 

 Nucula, 145, 187, 204 

 Nuculana, 167 

 Nummulina, 30, 198 

 Nummulites, 198 



Obolellidae, 141 

 Obolidae, 141 

 Ocean basins, 22 

 Octocoralla, 130 

 Octopoda, 194 

 Odontopleuridae, 151, 171 

 Oesel, Isle of, 41, 183 

 Off aster, 77, 183 

 Ogygiocaris, 151 

 Olcostephanus, 192 

 Old-age, 117 

 Old Red Marls, 27, 36 

 Old Red Sandstone, 15, 27, 155 

 Olenellus, 150 

 Olenust 151 

 Oligocene, 32 

 Omphalotrochus, 80, 147 

 Omphyma, 130 

 Onny shales, 33 

 Ontogeny, 95, 114 

 Ony chaster, 162 

 Oolite, 17, 175 

 Ooze, 17, 29, 35 

 Opal, 14, 20, 29 

 durability, 40 

 Ophidia, in 

 Ophidioceras, 148 

 Ophioderma, 180 

 Opis, 189 



Opisthoparia, 150, 171 

 Oppelia, 192 



Orbiculoidea, 142, 164, 185 

 Ovbitremites, 161 

 Ordovician, 21, 29, 31, 33, 43, 



125 



Organized fossils, 10 

 Orthacea, 31, 107 

 Orthis, 33, 85, 126, 142 



