INDEX 



537 



Geographic distribution. 258-305 



on continents, 258-278 



on oceanic islands, 279-305 



See also Barriers; Dispersal; Iso- 

 lation, geographic 

 Geographic races, sec Race; Subspecies 

 Geologic record, 7, 7-9, 127-257 



disturbance of. 131-134 



incompleteness of, 17, 134-136, 144- 

 146. 504 



nature of, 127-142 



"pages in," 130-131 

 Geologic time, visualization of, 140-141 

 Geologic time scale, 136-138 

 Geospiza, 294, 295 

 Germ cell, 33 1-332, 343, 349-350 



diploid, 382, 383, 385 



genes in, see Genes 



haploid, 382, 383, 385 



primordial, see Oogonium: Spermato- 

 gonium 



See also Germ plasm; Ovum; 

 Sperm 

 Germ plasm, 338 



changes in. 339. 345 



See also Genes; Ovum; Sperm 

 Germann, J. C, 184 

 Gershenson, S., 376,402 

 Gibbon, 222, 224-225 

 Gilbert. M. S., 60, 65-66, 78 

 Gill pouches, see Pharyngeal pouches 

 Gill slits, of fishes, 60-67 



in human embryos, 59-62 

 Gills, 60, 6/ 



excreting ammonia, 92, 97 



external, 163 



osmotic regulation by, 97, 98, 99 

 Glaciers, effect of on hybrids, 479 



formation of, 166, 193, 194-195. 268 

 Glick. P. A.. 284. 305 

 Globin. 103 

 Gloger's rule, 276 

 Glucose, digestion and absorption of. 86 



formation of, 87-88 



See also Carbohydrates 

 Goat, 491 



classification of, 115 



mountain, 264 



See also Serological tests 

 God, see Creator 

 Golden whistler. 485. 486 

 Goldfinch. 293 



Goldschmidt. R., 17. 18. 274. 276. 278. 

 327, 328, 361-362, 363. 414. 425, 

 503, 506 

 Gomphotherium. 211. 214 

 Goniatite, see Ammonite 



Goniiim. 70. 7/. 72 



Gordon. E. B., 123, 126 



Gorilla, 224, 225, 226, 227, 230, 231, 235 



blood groups in, 123 

 Graphite, 137, 145 

 Graptolite, 137, 150, 152, 153 

 Grasshopper, mouth parts of, 33, 34, 40 



transportation of, 285 

 Grazers. 198-200 



one-toed, 204, 205 



three-toed, 204, 205 

 Greek philosophers, 3-5 

 Green, R., 297 

 Gregory, W. K., 46, 56, 162, 224, 234, 



240. 256 

 Griffiths, D. E.. 102, 107 

 Grosbeak, 293 

 Growth, see Allometry 

 Growth index, initial, 406 

 Guanaco, 260, 270 

 Guinea pig. 119. 120 



independent assortment in, 385-389, 

 388 



nutrition of. 85 

 Gulick. A.. 286, 304, 305 

 Gunson, M. M., 362 

 Gustafsson, A., 451,482 

 Guyer, M. F., 24, 32, 44, 48, 188, 207, 

 276,339,344,345,363,372 



Habitat isolation, see Isolation, environ- 

 mental 



Hadzi, J., 73, 78 



Haeckel, E., 50-51,65,73 



Hagen, 38 



Hagfish, 68, 100, 154, 156 



Hair characteristics, inheritance of, see 

 Mendelian inheritance 



Hamster, color phases of, 375-376, 377 

 melanism in, 376-379, 377, 383, 384- 

 385, 427-429, 432-435, 437, 438- 

 441 



Hancock, 154 



Hand, see Limbs 



Haploid. 382. 399. 400. 418, 420 

 See also Polyploidy 



Hardin, G., 356, 363, 487, 506 



Hardy, A. C, 78. 257, 374, 449 



Hardv-Weinberg law, 348, 431-435, 436, 

 442-443,444 



Hare, classification of. 1 17-1 19 

 varying. 264 



See also Lagomorpha 



Harmony, secondary. 297 



Harrow. B., 90, 107 



Hawaiian Islands, birds of, 296-304, 488 

 insects of, 286, 490 



