6io 



EVOLUTION, GENETICS, AND EUGENICS 



Evolution, organic: causal factors of, 

 191; definitions of, 3-5; evidences of, 

 59-60; experimental, 60; nature of 

 proof of, 59; proof of, 57-59; and reli- 

 gion, 8; what it is not, 8, 9 



Fabre, M., 240 



Factor hypothesis, 372-91, 394-95 



Factorial analysis of color in mice, 388- 



89 

 Factors, in Neo-Mendelian heredity; 



complementary, 376-80; cumulative, 



382; inhibitory, 380-81; lethal, 391; 



in quantitative inheritance, 382-86 



Farnham, 496 



Feeble-mindedness, inheritance of, 521- 



22 

 Fertilization, 315-16 

 Fetal membranes, as adaptations, 201 

 Fierasfer acus, 202-3 

 Filaria sanguinis hominis, 221 

 Filial regression. Gallon's law of, 437-40 

 Flower, Professor, 99 

 Forficulata auricularia, 433-34 

 Franklin, B., 479 

 Freemartin, 407-8, 538-39 



Fossils: actual remains, 135; Cambrian, 

 133; casts and impressions, 136; classi- 

 fication of, 135; conditions necessary 

 for, 136-38; Darwin's opinion as to 

 the adequacy of the record of the, 

 132-34; definition of (by T. H. Hux- 

 ley), 135; first recognized, 12; general 

 facts revealed by, 140-42; pedigrees 

 of well-known vertebrates, 141-51; 

 petrifications, 135 



Fundamental assumption underlying 

 evidences of evolution, 61-65 



Fundulus, 508 



Gadow, H., 185-86 



Gaertner, 508 



Galapagos Islands, fauna of, 176-78 



Gal ton Laboratory of Eugenics, 521, 



571 

 Galton, Sir F., 38-39, 430, 435-40, 44i, 



487, 490, 532-34, 581-85 

 Gametic reproduction, 301-2 

 Gastrula, 115 



Gates, R. R., 489, 490-95, 496, 502-7 

 Gazelle-camels, 147 

 Geerts, 4 

 Gegenbaur, 124 



Gemmules, 28, 30 



Genealogical Records Office, 557, 564-65 



Genetics: definitions of, 295; evidences 

 from, 28; methods of study of, 296; 

 scope and methods of, 295-97; sub- 

 ject matter of, 296-97 



Genius: hereditary, 582; production of, 

 581-82; transmission of, 582-83 



Genotype, 442-45 



Genotypic, 442-45 



Geographic distribution, evidences from, 



60, 168-87 

 Geologic time: lapse of, 138-39; scale in 



millions of years, 139 

 Germ-cells: early setting apart of, 309- 



10; origin of new, 308-9; production 



of, 364-67 

 Germinal continuit>% 31, 310 

 Germinal selection, 30-31 

 Germ-plasm theory, 31-32 

 Giekie, Sir A., 140 

 Gill arches in vertebrates, 125-26 

 Giraffe-camels, 147 

 Glochidia, 220 

 Goddard, H. H., 520-22 

 Goethe, J. W., 21 

 Goldschmidt, R., 330-31. 404 

 Gorilla, 86 



Goring, C. F., 542-43 

 Goss, J., 40, 322 

 Graham-Smith, G. L., 109 

 Gray, A., 232 

 Greek evolutionists, 11-14 

 Gregory of Nyssa, 14 

 Gregory, W. K., 153 

 Griffith, C. R., 472-73 

 Guacanos, 144 

 Guhck, J. T., 32, 282 

 Guthrie, C. C, 459 



Guyer, M. F., 310-42, 486-93, 493-94 



525-26 

 Gynandromorphs, sex-chromosomes in. 



402-3 



Habitat: preference, 196-97; selection 



196-97 

 Haeckel, E., 19, 30, 121-22 

 Hair of man and apes, 93-97 

 Haldane, 423 

 Hamilton, D. J., 452 



