INDEX OF SUBJECTS 



343 



Dinocerata, the, 212, 236 

 Dinosaurians, the, 234, 267, 



297, 299, 301, 303 

 Dinotheria, 179-81, 226, 236, 



239, 317 

 Dinotherium Cuvieri, 180, 199 



giganteum, 180 



gigantissimum, 180, 199 



Icevius, 1 80 

 Diplodocus, 236 

 Dipnoes, 85 



Dipneusta, 51, 84, 170, 198 

 Dipneustral stage of Haeckel, 



.55 

 Dipsacus (teazle), de Vries on, 



274 



Dipterus Valenciennesi, 198 

 Dog-fish, its origin unknown, 



86 



Dolichosoma, 223 

 Douvelleicerata, 286 

 Dromatherium sylvestre, oldest 



authentic mammal known, 



found in the Trias, 53, 171, 



249, 250, 306 

 Dryptosaurus, 303 



EARTH, ages of the, Plate I 

 Echidna, 13, 52 

 Echinoderms (sea-urchins), 17, 

 21, 49, 196, 233, 256 



Gaudry on, 97 



history of, 48 

 Edentata, 53, 153 

 Eel, 223 



Elasmobranchia (dog-fish), 87 

 Elephants, approaching final 



phase of existence, 243 

 Elephas Afncanus, table on 

 p. 1 80 



antiquus, 204, 211 



melitensis, 204 



mnaidrensis, 204 



priscus, 1 80 

 Emarginula, 228 

 Embryogenic acceleration (Ta- 



chy genesis), examples of, 

 Ammonites, 258 



Cirrhipedes, 254 



| Embryology, Cope on, 81 



Haeckel on, 44 

 Embryonic shells of Lamelli- 



branch, Bernard on, 261 

 | types, Persistent, 255, 256 

 \ Emydes, fresh-water Tortoises 



of Jurassic limestone, 9 

 Enteledon, 312 

 Environment, migration of, 22 



Saint-Hilaire on, 33 

 Eoscorpius, early form of Scor- 

 pion, 164 



Eozoon, supposed organic na- 

 ture of, in reality a mineral 

 concretion, 336 



Ephemerides, 30 



Epidemics, hypothesis of, 235 



Episcoposauvus, 300 



Esocidce (pike), found in Up- 

 per Cretacean, 170 



Esther ia, persistent form, 164, 

 194 



Eupsammias, 228 



Eurypteridae, the, 71, 247 



Eusuchians, 233 



Evolution, Cope on, 219 



Darwin on, 35 et seq. 



Dollo on, 237 



Gaudry on stages of, 96 



Haeckel on, 44, 53 



Lamarck on, 28 



of branches, variable rate, 162 



of groups, 282 



too short duration as- 

 signed for, 107, 1 68 



of horse, " a deceitful de- 

 lusion," 105, 107 



of Molluscs, 162-6 



of organs, 101, 104 



of Proboscidians (table), 1 80 



Palaeontological, affords 

 most direct proof of trans- 

 formist hypothesis, 149 



regression, 217 



true nature of Palaeonto- 

 logical, 155 



Vertebrates, 78, 219 

 Existing causes, Lamarck as 



forerunner of the school, 30 



