INDEX 



Dryopithecines, 184 

 Dubinin, N. P., 207, 219 

 Dubois, E., 188 

 Dufour, L., 276 

 Duplication, 217 

 Du Reitz, G. E., 320, 321 

 Dust, burial in, 67 

 Du Toit, A. L., 322, 326 



Ear, musculature of, 43 



of whale, 43 



ossicles of, 173 

 Earth, origin of, 93 

 Eartliwomis, 142-143 

 Eastern Asia-Eastern North America dis- 

 tribution, 16, 315-316, 320 

 Echinodermata, 149 



and chordate origins, 157 



and the Biogenetic Law, 52 



fossils of, 71 

 Echiuroidea, 147 

 Ecology of ocean, 19-21 

 Ecotypes, 211 

 Edentata, 176 



EflBciency and complexity, 153 

 Eggs, adaptations of, 51-52 

 Eiseley, Loren G., 85 

 Ekman, S. P., 26 

 Elephant, 4 



Indian, 18 

 Embryology, 45-52 



Embryonic membranes, of reptiles, 168 

 Embryophyta, 111-127 

 Endemic, birds, 23 



defined, 312 

 Endemism, 312-314 

 Endopodite, 36, 37 

 Ensatina Rassenkreis, 267-269 

 Entamoeba histolytica, 129 

 Entoprocta, 140 

 Entosphenus, 162 

 Enzymes, and evolution, 55 



sequence of origin, 96 

 Eocene Epoch, 64 



date of, 66 

 Eohippus, 72, 73 

 Ephedra, 121 

 Epibiotic, defined, 312 

 Epidermis, of coelenterates, 136 

 Epipodite, of crayfish, 36 

 Ephng, C. C., 223 

 Epoch, defined, 63 

 Equidae, 72-74 

 Equisetum, 119 

 Equus, 73, 74 

 Era, defined, 63 



Erect posture, adaptations to, 190 

 Enjops, 165, 167 

 Ethiopian Region, 18 

 Euglena, 102-104, 128 



nutrition of, 103 



taxonomic position of, 103 

 Euglenophyta, 101, 102-104 

 Eumychophyta, 100, 129 



origin of, 124 

 Eusthenopteron, 164 

 Evening primrose, 283-287 



Evolution, basic law of biology, 336-337 



and chromosomal rearrangements, 221- 

 226 



chemical, 91-98 



defined, 3, 86 



generalizations on, 151-154 



irreversibility of, 154 



macroadaptive, 152 



main problems of, 86 



neo-Darwinian, 209-213, 227-228, 329- 

 330 



origin of science of, 337 



of plants, 124-127 



quantum, 152 



rates of, 152 



retrogressive, 151 

 Evolutionary thought, current trends in, 

 329-330 



history of, 77-85 

 Exclusion, geographical, 19 

 Exopodite, 36, 37 

 Extinction, significance of, 154 

 Eyes, vertebrate and cephalopod com- 

 pared, 40-41 

 Eyestalk, of crayfish, 36, 37 



Family, defined, 28 

 Fats, origin of, 94 

 Fell, H. Barraclough, 52 

 Fernald, M. L., 323 

 Ferns, 120-121 



seed, 121 

 Fertility, reduction of, 277-282 

 Fertilization, random, 201 

 Ferungulata, 176-177 

 Filicineae, 120-121 

 Filter bridges, 315, 316-318 

 Finches, Darwin's, 309 

 Fin fold theory, 160 

 Fins, 159-160 



and origin of Amphibia, 165 



of shark, 39-40 

 Fish, 159-163 



anadromous, 60 



catadromous, 60 



rains of, 23 



types illustrated, 162 

 Fisher, R. A., 85, 252, 253, 255, 258 

 Flagellata, 89, 102, 128-129 



as source of Metazoa, 132-133 

 Flatworms, 138-139 

 Flight, adaptations to, 171 

 Fhpper, of seal, 39-40 

 Florkin, M., 61 



Flowering plants. See Angiosperms 

 Flowers, rarely fossilized, 70 

 Flukes, 139 



Flycatcher, mimicry in, 245-246 

 Foods, synthesis of, 95-96 

 Footprint, 69 

 Foraminifera, 129 



fossils of, 71 

 Ford, E. B., 236 

 Forests, as barriers, 273 

 Fossilization, 67-69 



at different times, 70 



conditions for, 67 



343 



