444 



INDEX. 



Coocoliths 120 



Coccospheres 118-121 



Codiaeeae 159-164 



Codium 159, 160 



C. Bursa 160 



G. tomentosum 160 



Goelotrochium 176 



Coemans, E. and Kickx, J. J. 411 



Coenocyte 116, 117 



Cohn, F. 123, 126 



Cole, G. 83 



Cone-in-cone structure 83 



Gonfervites 177 



G. chantransioides 178 



Confervoideae 177-178 



Conglomerate 24 



Coniferae 232 



Gonvallarites 291 



Conwentz, H. 80, 211, 212, 221 



Cook, Capt. 122 



Coprolites 108, 135, 137, 182 



Coral reefs 26, 40, 48 



Gorallina officinalis 183, 184 



Corallinaceae 183-190 



Coralliueae 184 



Corallines 159, 169, 184 



Coralliodendron 163 



Corals, fossil 25 



Corda, A. J. 5, 8 



Cordaites 75, 80, 99, 104, 366 



Cormaok, B. G. 251, 252 



Coscinodiscus 153 



Costa, Mendes da 3 



Cotta, C. B. 9, 298 



' Crag ' 53, 62 



Craigleith Quarry, Edinburgh 81 



Cramer, C. 171, 177 



Credner, H. 149 



Crgpin, F. 109 



Cretaceous system 50, 51, 188 



Cromer Forest bed 53 



Crossochorda 148 



Gruziana 144, 145 



Culm rooks 42, 68, 383, 413 



Cuticles, fossil 68, 133 



Cyanophyceae 121, 122-132 



Gyathophyllum bulbosum 237 



Cycadaceae 98 



Gycadeoidea gigantea 88, 214 



Gycadorachis 114, 115 



Cycads 49, 56, 99, 281 



Gyclocladia 371 



C. major 372 



Cymopolia 165, 169, 170, 172, 177 



G. barbata 162, 169, 171 



C. elongata 172 

 G. Mexicana 169 



Dactylopora 175, 176 



D. cylindracea 176 

 Dactyloporella 176 



Darwin, C. 16, 17, 65, 70, 79, 100 



Dasycladaceae 164-176 



Dasyporella 176 



Dawes, J. S. 297, 302 



Dawson, Sir W. 147, 192, 193, 195, 



338, 390, 413 

 Dawsonia 287 

 D. polytrichoides 237 

 D. superba 237 

 Decorticated stems 105 

 Deecke, W. 173 

 Defrance, J. L. M. 172 

 Dendrophycus triassicus 146 

 Denudation 23, 24, 35 

 Desmideae 221 

 Devonian system 39, 133, 173, 193, 



195, 225, 256, 338, 383, 413 

 Diatomaceae 150-156 

 Diatomite 151 



Diatoms 117, 118, 123, 141, 185 

 Dichothrix 123 

 Dicotyledons 98, 99 

 Dietyogens 99 

 DinoflageUata 118 

 Diplopora 173-176 

 Dirt-beds, of Portland 56, 57 

 Dismal swamp 74 

 Dixon, H. N. and Joly, J. 120 

 Dorset, coast 56, 226 

 Dover coal 45 

 Drifting of trees &c. 64 

 Duncan, M. 127, 129 

 Duval-jouve, J. 247 

 Dyas system 46, 209 



Eohinoid spines 177 



Ehrenberg, C. G. 117, 118, 151, 153 



Elaters 245 



Ellis, J. 159, 169 



