INDEX 



Fossils, 63 



defined, 67 



destruction of, 70 



types of, 69 

 Fossil record, evaluated, 71-72 



incompleteness of, 69-70 



significance of, 71-72 

 Fox, "flying," 18 

 Fraenkel-Conrat, H., 110 

 Fragmentation of chromosomes, 307 

 Fresh-water organisms, transport of, 22- 



23 

 Frogs, 4 



seasonal isolation in, 275 

 Fuller, H. J., 110, 127 

 Fimgi, relationships among, 100 

 Fur seal, 249 

 Fusion, of bones, 39 



Galago, 180 



Galapagos Islands, 14, 23-25 



birds of, 23-24, 272 



plants of, 25 

 Galeopsis, species synthesis in, 302-303 

 Galley Hill skull, 192 

 Galton, Sir Frances, 82 

 Gambusia, protective coloration in, 248 

 Gametes, of Chlamt/domonas, 105 

 Gametophyte, 108 



of moss, 113 

 Ganoid scales, 161 

 Garpike, 162, 163 

 Gasteropoda, 141-142 

 Gastrea theory, 134-135 

 Gastrodennis, of coelenterates, 136 

 Gastrotricha, 139 

 Gastrovascular cavity, 136 

 Gates, R. R., 196, 198 

 Gavan, J. A., 198 

 Gay, Helen, 206 

 Geese, family stnicture of, 274 

 Gegenbaur, Carl, 80, 81, 164 

 Gemmules, of sponges, 133 

 Genes, 201 



and isolation, 270-271 



and viruses, 91 



morphological concept of, 206 



mutator, 208 



numbers of, 206 



origin of, 95 



pemiancnce of, 82-83 



permutations of, 264 



photographed?, 207 



physiological concept of, 228-229 



pk'iotropic, 251 



size of, 206 



specificity of, 55 



theory of, 206-209, 329-330 

 Genetic drift, 258-260 



on islands, 309 

 Genetics, and evolution, 74-75 



and the Modern Synthesis, 84-85 



population, 253 

 Genome analysis, 301-304 

 Genus, defined, 28 

 Geochemical dates, 66 

 Geochemical dating, 63-66 



Geological time scale, 62-67 



tabulated, 64-65 

 Geospizidae, 309 

 Germany, and evolution, SO 

 Gibbon, 180-181 

 Gigantopithecus, 189 

 Gigas habitus, 294 

 Gillespie, G. G., 85 

 Gills, of crayfish, 36 

 Ginkgo, 121, 316 

 Giraffe, 18 



in Lamarkism, 77 

 Glires, 176 



Globulin, in clii-omosomes, 55 

 Gloger's rule, 211 

 Glucose, abiotic origin of, 94 

 Gnetales, 121 



Goldschmidt, R. B., 85, 207, 224-228, 

 229, 235, 236, 257, 266, 267, 288, 

 290, 292, 329-330 

 Gondwana, 322 

 Gonium, 106 



Goodspeed, T. H., 301, 302, 305 

 Gorilla, 18, 181 



blood groups of, 59 

 Gowen, J. W., 206 

 Grass, and evolution of horses, 74 

 Gray, Asa, 9, 79, 80 

 Gregory, W. K., 75 

 Gudger, E. W., 23 

 Guinea pig, inheritance in, 202-203 

 Gymnospermae, 121-122 



Habitats, hybridization of, 292 



Hadzi, J., 138, 154 



Haeckel, E., 28, 45, 51, 52, 80, 81, 134, 



135, 136, 138, 140, 149, 155, 160 

 Haldane, J. B. S., 85, 253, 255, 257 

 Half-life, defined, 66 

 Half mutants, 287 

 Hamburger, V., 53 

 Haploidy, 105 

 Haptodus, skeleton of, 34 

 Hardy, A. C., 132, 154 

 Hardy- Weinberg l.sm, 253-255 

 Hare, arctic, 260 



arctic, cryptically colored, 240 



mountain, 16 



varying, 16 

 Harvey, William, 336 

 Hedgehogs, 290 

 Hedgpctli, J., 146 

 Heidelberg jaw, 191 

 Heiser, C. B., 291,292 

 Heliozoa, 131 



fossils of, 71 

 Hcmatin crystals, 56 

 Hematology and evolution, 55-59 

 Hemichordata, 149-150, 157 



and the Chordata, 149-151 



phosphagens of, 59 

 Henslow, J. S., 7 

 Heredity, blending, 270 



elements of, 201-206 



of quantitative traits, 205 



Wcismann's theory of, 81 

 See also Genes and Genetics 



344 



