INDEX 



6ii 



Hanson, F. B., 472 



Hapalidae, no 



Harris, J. A., 461, 538 



Harrison, R. G., 459 



Harte, Bret, 156 



Harvey, W., 13 



Hauser blonds, 578 



Hegner, R. W., 309 



Heilbom, 493 



Helix hortensis, 355; H. nemoralis, 355 



Henderson, L. J., 195 



Heraclitus, 12, 217 



Herbert, S., 209, 272-73, 277-78 



Heredity: environment and training, 

 297-98; Galton's laws of, 436-40; in 

 man, 368-69; in pure lines, 442-44; 

 statistical study of, 435-40 



Hermaphrodites, sex-chromosomes in, 

 402-3 



Hermit crabs, 75-77 



Heron, Sir R., 240 



Herschel, Sir J., 3 



Hesperotettix, 427 



Heterogenesis theory, 36 



Heterosis, 508-10 



Heterozygote, 349 



Hieracium, 494 



Hippocrates, 396 



Homo: H. heidelbergensis, 159; H. sa- 

 piens, 159, 161, 163-64; H. neander- 

 thalensis, 160-64; H. primagenius, 160 



Homologies: evidences from, 60; vaHd- 

 ity of the principle of, 63-64; versus 

 analogy, 64-65 



Homozygote, 349 



Hooker, Sir J., 202, 254, 278, 478 



Hormone theory of sex differentiation, 

 405-8 



Hormones, 405-8 



Horse: ancestry of, 8; feet and teeth in 

 fossil pedigree of, 143; fossil pedigree 

 of, 141-43, 145 



Horseshoe-crab, 121 



HrdU(^ka, A., 137 



Hudson, W. H., 213 



Human antiquity, evidences of, 164-65 



Human conservation, 570-80 



Humanity, future of, 166-67 



Humerus, perforations of, in Quadru- 

 mana, 99 



Hurst, C. C, 43, 352, 355, 358-59 



Hutton, J., 22, 57 



Huxley, T. H., 28-29, 133-34, 162, 217 



Hyalodaphnia, 331, 332 



Hyatt, A., 35 



Hybrid vigor, 309-10 



Hydra, 300 



Hybridization: and the origin of species, 



43; role of, in evolution, 507-8 

 Hymenoptera, parthenogenesis in, 402 

 Hyracotherium, 142 



Immigration and eugenics, 572-73 



Inbreeding, 510-13 



Induction : a temporary change in germ- 

 cells, 461-62; of hereditary variations, 

 45 



Infant mortaUty movement, 567 



Inheritance: of acquired characters {see 

 Acquired characters); of brachydac- 

 tylism, 518; of cataract, 519; of feeble- 

 mindedness, 420-22, 317; of human 

 characters, 417-30; of insanity, epi- 

 lepsy, etc., 517, 523-24; in royalty, 

 523-30; sex-Unked, 408-13 



Insanity, inheritance of, 323 



Interference, in crossing-over, 423 



Intersexes: in birds, 406-8; in cattle, 

 407-8; in Drosophila, 403-4; in 

 gypsy moth, 404 



Intraselection, 277-78 



Isolation: biologic, 281; geographic 

 278-81 ; theories of, 20, 32-33, 278-82; 

 reproductive, 281-82 



James, W., 344 



Jeffries, E. C, 407 



Jennings, H. S., 270, 442-43, SSSS^) 



Johannsen, W., 441-42 



Johnson, R. H., 558-80 



Jones, D. F., 134, 137, 297, 415, 501, 



509, 510, 512 

 Jordan, D. S., 4, 32-34, 103, 114-21, 



194, 279-80, 282, 373-76, 579 



Joule, J. P., 286 

 Judd, J. W., 10, 23-24 



Kallima, 208-10, 259 



Kammerer, P., 462 



Kant, E., 13-16 



Kellogg, V. S., 4, 32-34, 105, 114-21, 

 134-38, 194, 254-56, 262, 273, 282 



