INDEX 



679 



Food strainers, 423, 424, 551 ; 54.8-552 

 Food trappers and stingers, 551; 552, 553 

 Food vacuoles, 184; 186 

 Foot, human, 37-38, 482; 30 



modifications of, in horses, 466-469 

 in marsupials, 462 

 in primates, 471-472 

 in ungulates, 464-465 



of molluscs, 644; 594 



of mosses, 258; 610 

 Foramen magnum, 486; 494 

 Forests, Carboniferous, 411-413; 434 



Cenozoic, 416-418 



Devonian, 411; 410 



Mesozoic, 414-417 



Permian, 413-414 



Pleistocene, 418, 490 

 Fossils, 333 



kinds of, 396-397; 393 

 Fovea, retinal, 112, 472; 111 

 Frogs, 434, 631, 661 



development of, 236 



recapitulation in, 365-367 



reflex action in, 116 

 Fructose, 173 

 Fruits, 273-276 



dispersal of, 382; 383 

 Fungi, 200-201, 597, 602-607; 408, 594 



origin and history of, 407-408 



parasitic, 200-201, 602, 603 



role in energy cycle, 544, 557 



saprophytic, 200, 603 



spore formation in, 256, 408 



symbiotic, 201-202, 603, 604 



G 



Gall bladder, 70, 132; 69, 185 

 Galley Hill man, 50 In. 

 Gametes, 256, 283 



in angiosperms, 264, 269-270 



in animals, 215-222 



human, 241-243; 20, 250 



motile, in plants, 254, 256, 258, 261, 

 415; 259, 614 



in unicellular organisms, 212, 256 

 Gametic formula, 283 

 Gametic purity, 282 

 Gametogenesis, 219-222 

 Gametophyte generation, 254; 262 



in bryophytes, 257-258; 262 



in pteridophytes, 260-261; 259, 262 



in spermatophytes, 268-271; 262 



in thallophytes, 255; 262 

 Ganglion (ganglia), 109 



autonomic, 118; 119 



cephalic, in flatworms, 191 ; 182 



dorsal root, 106; 119 



sub- and supra-esophageal, 191; 183 



Gastric juice, 66, 68 



Gastrin, 132 



Gastrovascular cavity, 184, 362, 637 



Gastrula, 235, 361; 233, 234, 236 



Gastrulation, 235, 361; 233, 234, 236 



Gemma, 609 



Gene complex (genome), 366-367 



number of genes in, 346 

 Gene pool of population, 510 

 Generalized vs. specialized characters, 35, 



513; 494 

 Generative nucleus, 269; 270 

 Genes, 282, 317 



assorting of, 290-301, 346-347 



in chromosomes, 290 



complement of, in Drosophila, 346 

 in man, 346 

 in population, 346, 351, 510 



complementary, 305-306 



duplicate, 307 



independent assortment of, 284-289 



inhibiting, 307 



interaction of, 304-307 



lethal, 302-304 



linear order of, 299-301 



linked, 299 



locus (loci) of, 299-301 



modifying, 306-307 



multiple, 307-310 



multiple effects of, 304 



new combinations of, 316 



origin of, by mutation, 314-316 



in race analysis, 509-511 



recombination of, 282 

 Genetics and the Races of Man, 510-511 

 Genetics, 277-325 



and evolutionary theory, 345-353 



terminology of, 282-283 

 Genotype, 283, 304 

 Genus, 3, 374-375, 596 

 Geological cycles, 391 

 Geological revolutions, 391-392, 402, 404 



Alpine-Cascadian, 417 



Appalachian, 394, 413, 435 



Rocky Mountain, 394, 453 

 Geological time, length of, 392 

 Geological time scale, 394-395 

 Germ and soma, 213-214, 344 

 Germ cells, 213, 215 

 Germ layers, 235-237, 361, 627 

 Germ plasm, continuity of, 213, 329, 344 

 Germination, 140-141 

 Giants, Asiatic, 496; 502 

 Gibbons, 478-479; 481, 485 

 Gigantism, 128 



Gill arches, 239-240; 238, 251, 364 

 Gill clefts, pouches, and slits, 239-240, 

 362, 423, 655; 185, 238, 251, 423, 424 



