374 



INDEX 



Characters, inborn and acquired, 

 definitions of, 5, 6, 355 ; congen- 

 ital, 6 ; dormant, 61, 370-1 ; en- 

 forced, 32 ; modes of disappearance 

 of, 64 



Chauveau, on acquired immunity, 

 118 ; on immunity against anthrax 

 acquired by foetus, 132 



Chicken-pox, duration of acquired 

 immunity to, 117 ; in relation to 

 evolution, 207 



Children, cause of susceptibility to 

 disease, 171 ; contrasted with 

 adults, 245 



Chinese, immunity to tuberculosis, 

 151 ; opium smoking, 199 ; educa- 

 tion of, 327 



Cholera, evolution against, 154 ; 

 habitat of, 169 ; antiquity of, 171 



Christians, early, 296, 306 



Church, influence on civilization, 285, 

 309 



Civilization, relation to religion, 298 



Clayton, experiments on beans, 353-4 



Colleges of Physicians and Surgeons, 

 on physical deterioration, 331 



Colles, on syphilis, 128 



Colonization of America, 185 



Colour, influence of light and tempera- 

 ture on, 41 



Columbus, introduction of disease to 

 America by, 181 



Conception, 220 



Congenital characters, 6 ; diseases, 

 ID/ 



Coolies, sufferings from malaria in 

 British Guiana, 137 



Corbie, on pigeons, 72 



Correlation of mind and brain, 246 



Coutts, on wasting of hand-fed 

 syphilitic children, 131 



Crab, lack of memory, 223 



Craddock, Dr. , on increase of lunacy, 

 350 



Creoles, immunity to malaria, 137 



Crime, causation of, 308, 311 



Cross-breeding, effects of, 69 et seq. ; 

 beneficial effects, 97 



Cunningham, Prof., on physical de- 

 terioration, 332 



Cypris reptans, variations in, 49 ; lack 

 of regression, 84 



Dandelion, effects of environment on, 

 353 ; numerous varieties of, 365 



Dark Ages, 308 



Darwin, Charles, founded systematic 

 study of heredity, 1 ; theory of 

 Pangenesis, 8, 9 ; maternal im- 

 pressions, 26 ; regeneration in 



salamanders, 31 ; exclusive in- 

 heritance, 48 ; monsters, 54 ; dor- 

 mant characters, 62, 63, 370 ; pig- 

 eons, 72 ; fowls, 72 ; reversion in 

 flowers, 73-4 ; apples, 78 ; hyacinth, 

 78 ; pansy, 79 ; pears, 80 ; wheat, 80; 

 ill effects of in-breeding, 97 ; cross- 

 breeding, 97 ; sterility, 99, 100 ; 

 tameness of animals, 229 ; domesti- 

 cation, 238 



Darwin, Sir F., on pigs, 71 



Darwinism, Neo-, theory of heredity 

 and evolution, 16 ; incompatibility 

 with Lamarckian doctrine, 19, 23 ; 

 and with doctrine that variations 

 are due to direct action of environ- 

 ment, 44 ; applied to disease, 112 



Davis, on measles in Samoa, 152 



Death, causes of, in Western Hemi- 

 sphere, 183 



Definition of Heredity, 1 



Deliberate actions, 218 



Descartes, on animals as automata, 

 262 



Desires, 217, 261 



Deterioration, physical, Committee 

 on, 331, 335 



Diarrhoea, evolution against, 154 



Dicquemase, on memory in oysters, 

 226 



Diday, on syphilis, 128 



Diphtheria ; duration of acquired 

 immunity, 117 ; serum treatment 

 of, 119 ; disintegration of bacilli, 

 123 ; antiquity of, 170 



Diseases, as tests of doctrines of 

 heredity, 112-13, 134, 157 ; evolu- 

 tion of, 170 ; persistence of, 173 ; 

 origins from single centres, 173 ; 

 ancient freedom of Western Hemi- 

 sphere from, 174 ; spread of, 176 ; 

 of lower animals, 177 ; passage of 

 from epidemic to endemic, 177 ; 

 introduction to America, 182 ; 

 contagious, 176 ; animal-borne, 

 176 ; air-borne, 176, 178, 182, 

 338 ; earth-borne, 176, 180, 182, 

 377 ; water-borne, 176, 337 



Domestication ; effects on fertility, 

 101 ; capacity of animals for, 238 



Dow, General Neal, on drunkenness 

 in Portland, 341 



Dragon-fly, instincts of, 224, 263 



Dreams, 233 



Drinking, among Jews, 202 ; Greeks 

 and Romans, 202 ; Gauls and 

 Germans, French, English, 203 



Drunkards, varieties of, 194, 345 



Dysentery, evolution against, 154 

 antiquity of, 171 



