614 



EVOLUTION, GENETICS, AND EUGENICS 



Factors, in Neo-Mendelian heredity: 

 complementary, 257-61; cumulative, 

 263; inhibitory, 261-62; lethal, 276; 

 in quantitative inheritance, 263-68; 

 of evolution, 186-89 



Feeble-mindedness, inheritance of, 458- 

 60 



Fertilization, 186, 199, 207-8 



Fetal membranes, as adaptations, 356 



Fierasfer acus, 357-58 



Filaria sanguinis hominis, 376 



Filial regression, Galton's law of, 47* _ 73 



Flower, Professor, 91 



Forficitlata auricularia, 558-59 



Fraternal twins, 477 



Freemartin, 530-31 



Fossils: actual remains, 127; Cambrian, 

 125; casts and impressions, 128; clas- 

 sification of, 125; conditions necessa- 

 ry for, 1 28-30; Darwin's opinion as to 

 the adequacy of the record of the, 

 124-26; definition of (by T. H. Hux- 

 ley), 127; first recognized, 12; general 

 facts revealed by, 132-34; pedigrees 

 of well-known vertebrates, 133-43; 

 petrifications, 127 



Fowl hybrids, 301-2 

 Fundamental assumption underlying 

 evidences of evolution, 53-57 



Fundulus, 302 



Gadow, H., 177-78 



Gallus domesticits, 301 ff. 



Galapagos Islands, fauna of, 16S-70 



Galton, Sir F., 38-39, 441, 445, 456~57, 

 471-75 



Gametes, 198, 199 



Gametic reproduction, 198-99 



Gastrula, 107 



Gates, R. R., 299, 327, 328-33, 340 



Gazelle-camels, 139 



Geerts, 334 



Gegenbaur, 116 



Gemmules, 28, 30 



Gene mutations, 187 



Genes, 186, 193 



Genetics: biological background of, 

 190-208; definitions of, 183; evi- 

 dences from, 28; methods of study 

 of, 183; methods of, 184; nature and 

 scope of, 183-84; prerequisites for the 

 study of, 184-85 



Genius: hereditary, 456 ff.; production 

 of, 53 2 -33; transmission of, 533-34 



Genotype, 215, 271, 272 



Genotypic, 215, 271, 272 



Geographic distribution, evidences from, 

 52, 160-79 



Geologic time: lapse of, 130-31; scale in 



millions of years, 131 

 Germ-cells: early setting apart of, 201- 



3; maturing of, 203-7 



Germinal continuity, 31, 200-202 



Germinal selection, 30-31 



Germ-plasm theory, 31-32, 200-202 



Germ track, 200-202 



Giekie, Sir A., 132 



Gill arches in vertebrates, 11 7-18 



Giraffe-camels, 139 



Glochidia, 375 



Goddard, H. H., 458-60 



Goethe, J. W., 21 



Goldschmidt, R., 227 



Gonads, 201 



Gorilla, 78 



Goss, J., 40 



Graham-Smith, G. L., 101 



Greek evolutionists, n-14 



Gregory of Nyssa, 14 



Gregory, W. K., 145 



Griffith, C. R., 424-25 



Guacanos, 136 



Guiding factors in evolution, 187-88, 



344-48 

 Gulick, J. T., 32, 434 

 Guthrie, C. C, 411 

 Guyer, M. F., 204, 205, 206, 207, 208, 



416-23, 423-24 

 Gynandromorphs, sex-chromosomes in, 



225-26 



Habitat: preference, 351; selection, 351 



Haeckel, E., 19, 30, 1 13-14 



Hair of man and apes, 85-89 



Hamilton, D. J., 404 



Hanson, F. B., 424 



Hapalidae, 102 



Haploid chromosome number, 205 



Harris, J. A., 413 



Harrison, R. G., 411 



Harte, Bret, 148 



Harvey, W., 13 



