6o8 



INDEX 



France, population of, 536 



Gaileo, contribution of, 593-595 

 Genes, definition of, 567 

 Genius, and brain weight, 93 



and inheritance, 581 

 Gibbons, 80-83 

 Gonorrhea, 445 

 Gorilla, 86 



Great Britain, immigration into, 519 

 Group marriage, 269-271 

 Growth-inhibiting factors, 213 

 Growth-promoting factors, 212 



Hair, character, 161 



color, 161 

 Health, geographical distribution of, 

 321-325 ♦ 



international organizations, 441 

 Heart, 221, 234-239 



diseases of, 448 

 Heredity, and environment, 572-574 



modification ©f, 572 

 Hottentot-Dutch crosses, 561 

 Human behavior-patterns, 597 

 Human opinion, changes in thought 

 habits, 599-600 



experimental tests, 597-599 



governing ideas, 591-593 



grafting of ideas, good and bad, 

 600-603 



influence of invention, 603-604 



intentional shaping of, 589-604 



re-shaping of governing thoughts, 



593-595 



scientific-mindedness, 595-596 

 Human populations, 5^5~552 



composition of, and difTcrential 

 fertility, 539-551 



conclusions, 551 



fundamentals, 515-525 



growth of, 533-539 



self-regulation, 525-533 

 Human races, 156-183 



classification, 164-172 



daughter races, 172-176 



degeneration, 181-183 



"equality" of races, 178-180 



mixture of races, 176-178 

 Humidity, physiological effects of, 



296-301, 305-311 

 Hypersensitivity, 416 

 Hypothalamus, 259 



Imagination, 126 



Immunology, science of, 427 



"Incest," 282 



Indian-European crosses, 560 



Industry, relation to science, 458-467 



Infant welfare, 454 



Infectious diseases, 494-503 



Inheritance, and genius, 581 

 cellular basis of, 199-201 

 of disease, 491-514 

 of unusual ability, 579 



Inheritance in diseases, 491-514 

 abnormal sensitization, 505-506 

 cancer and other malignant tumors, 



503-505 

 central nervous sytem, 506-508 

 characters and qualities in, 509-5 14 

 fundamentals in, 491-503 

 longevity, 504-505 



Insane, treatment of, 451 



Insects, in urban and rural environ- 

 ments, 372 



Insight, 122-124 



Integrative action, of glands of 

 internal secretion, 242-244 

 marriage, 266-290 

 of nervous sytem, 246-263 

 of vascular system, 219-244 



Intelligence and race mixture, 559 



Intra-uterine infection, 491 



Invertebrates, age of, S5 



Iodine, influence on thyroid, 346 



Japanese, see yellow-brown races 

 Jaws, origin of, 64 

 Jews, number of, 520 



survival in cities, 350 

 Juvenile court, 388 



Kidney, function of, 50, 51 



Language, role in evolution, 1 31-135 

 Law of climatic limits, 296-301 



acclimitization, 327-330 



and racial characteristics, 325-327 



climatic differences of race, 319-321 



climatic optima, 301-319 



geographic distribution of hcaltli 

 and energy, 321-325 

 Life, arriving on meteors, 40 



conditions necessary for, 4-10 



