INDEX. 



379 



Development theory (see Evolution) 



Developmental changes, 260 



Diatoms, 58 



Dicotyledons, 56, 57 



Dinoceras, 152 



Dinornis, 88 



Dionoea, 22 



Distribution, 23 et sey., 28, 29 



Dodo, 88 



Doris, 228 



Dragon-flies, 261 



Dujardin, 63 



Dumeril, 242 



Flowers, II, 56 



Flowers, fertilization of, 308 



Flow- rs, structure of, 310, 311 



Flustra, 230, 282, 283 



Food in relation to degeneration, 359 



Foot ot mollusca, 221. 



Foraminifera, 46, 277 



Fossils, 146 



Fossils in relation to evolution, 369 



ct seq. 



Fovilla, 317 

 Frog, 1 1 8, 119, 235 

 Frog, development of, 119, 193, 344 

 Fruits, \T$et seq. i 313 



Early stages in animal development, 167 

 Echinoderms, 1 1, 46, 55 

 Echinoderms, development of, 195 et 



scq., 200, 2l6 

 Ectoderm, 173 

 Egg, 255, 275 

 Egg of sponge, 173 

 Emboitement, 170 

 Embryonic forms as fossils, 373 

 Encrinites, 198 

 Endoderm, 173 

 Eohippus, 95 

 Ephemera, 267 

 Epiblast, 179, 1 80. 1 86 

 Epigenesis, 169, 183 

 Epilepsy, 85 

 Equisetse, 58 

 Espada, 239 

 Etiology (see ^Etiology) 

 Evolution (see also Natural Selection) 

 Evolution, theory of, 4, 32, 34, 253 

 Eye, development of in vertebrates 



and invertebrates, 358 



Feather star (see Comatula) 



Ferns, 56 



Fertilization of flowers, n, 308 ct seq. 



Fertilization, process of, 317 



Fig, 141 



Fins of fishes, no, 113 



Fish-lice, 208 



Fish, structure of, 43 



Fishes' tails, 102 et seq. 



Flies, 258 



Flounder, tail of, 104 



Flower, Professor, 31, 112 



Ga^en, 169 



Ganoid rishes, 106, 116, 118 



Gasteropoda. 222, 224, 246 



Gastrula, 173, 175, 178 



Gegenbaur, 267, 288 



Geology and evolution, n, 151, 366 



et seq. 



Germ (see Egg) 



Gill clefts, 101, 181, i%& et seq. 

 Globe animalcules, 278 

 Goethe, 1^5, 126, 130, 133 

 Gorilla, 150 

 Grasshopper, 264 

 Gray, Asa, 291, 301 

 Gregarina, 275 

 Gymiiosperms, 56, 58 



H 



Haberlein, 158 

 Hieckel, 184, 186, 287, 288 

 Harvey, 169, 183 

 Haversian canals, "Jl 

 Hawthorn, 138 

 Heredity, 194 

 Helmholtz, 15 

 Hesperornis, 160, 161, 162 

 Heterocercal tail, 106 

 Hipparion, 93 

 Hippocampus, 239 

 Hippocrates, 169 

 Holothurians, 199 

 Homocercal tail, 106 

 Homogeneous structures, 128 

 Homology, 10, 15, 34, 123 et seq. 

 Homoplastic structures, 129, 134 



