Index 



353 



ovum, 9, 10 



spermatozoa, n 



Humidity, influence on mutation, 210 

 Huntingdon's Chorea, 118 

 HUXLEY, Evolution and Ethics, 242 

 Hybrid races, quality of, 284 

 Hybridization, 261 



human, 284 



Hybrids, increased vigor, 261 

 Hypertrophied heart, not inherited, 



229, 230 

 Hypophysis, effects on development, 



225 



Hypotrichosis, 117 

 Hysteria, 71, 117 



Ideals, individual and social, 282 

 Identity, sense of, 54 

 "Idiobiasts" of Hertwig, 129 

 Idioplasm, of N'ageli, 128 

 Immigration. 277, 285 



laws, 286 



Immunity, transmission of, 113 

 Impulses, conflicting, 50, 312 

 Inbreeding, 283 

 INDIVIDUAL AND RACE, 321 



minor unit, 324 

 INDIVIDUAL CHARACTERS, 65 



Morphological, 66 



Physiological, 67 



Psychological, 70 



Teratological, 69 

 INDIVIDUALS AND THEIR CHARACTERS, 



63 



INDIVIDUALS UNIQUE, 75 

 "Induction," effect of colored soil, 

 236 



poor soil, cold, alcohol, 235, 236 



not inherited, 236 

 Inequality of all men, 304 

 Infancy, prolonged in man, 238, 307 

 Infertility, causes of, 295 

 INHERITANCE OF ACQUIRED CHARAC- 

 TERS, 226 



statement of problem, 228 



lack of evidence, 229 



no influence of stock on graft, 

 230 



dominants and recessives remain 

 pure, 234 



climatic effects not inherited, 234 



Inheritance, "alternative," 73 



"blending," 73 



of baldness, 68 



cell characters, 67 



dimples, 66 



facial features, 66 



fecundity, 68 



genius, 71 



instincts, 70 



intellectual capacity, 71 



left-handedness, 68 



longevity, 68 



moral tendency, 71 



obesity, 68 



"particulate," 73 



pathological characters, 69 



physiological characters, 67 



psychological characters, 70 



sex-limited and sex-linked, 73, 

 118, 168, 180 



stature, 66, 78, 79 



temperament, 71 



teratological characters, 69 



through cytoplasm, 190 



tuberculosis, 70 



will, 71 

 INHERITANCE FACTORS, 99, 129 



are differential causes, 99 



formulae, 94 



units, 129 



location of, 130, 176 

 Inheritance material, 128 



seat of, 131, 176 

 Inheritance units, 129 



location of, 130 

 Inhibition, 50, 312 

 Insanity, 71, 117 

 INSTINCTS, 39 



altruistic, 314 



inherited, 70 



origin of, 42, 43 



reproductive, 322 

 INTELLECT, 45-49 

 Intelligence, from Trial and Error, 



48 

 Intellectual capacity, inherited, 71 



genius, 71, 117 



mediocrity, 117 

 Intelligence, factor in control, 310, 



313 



in evolution of man, 275 

 Interaction of parts, 223 



