INDEX 



355 



munity, 125 ; on antitoxins in 

 milk, 131 



Eicholz, on physical deterioration, 

 332, 333 



Emotions, 214 



Energy, superfluous, 243 



Enteric fever, evolution against, 154 



Environment, as a cause of varia- 

 tions, 39, 158 ; influence on somatic 

 cells, 158 



Epidemics, ancient, 179 



Esquimaux, deaths from vaccination, 

 154 



Evolution, follows stringent selection 

 only, 18 ; results only from opera- 

 tion of injurious agencies, 19 ; 

 progressive and regressive, 43 ; of 

 pathogenetic organisms, 168 ; con- 

 ditions governing evolution against 

 disease and narcotics, 208 



Ewart, Prof. J. Cossar ; telegony, 

 27 ; experiments in cross-breeding, 

 49, 70, 71, 98, 160 ; prepotency 

 in relation to maturity of parents 

 and germ-cells, 69 ; on reversion 

 in prize breeds, 77 ; on the causa- 

 tion of variations, 98, 160 ; on in- 

 breeding as eliminating the tend- 

 ency to vary, 98; on gout, 161 



Faculties, mental, 291 

 Falkland Islands, horses of, 41 

 Family life, 227, 276 ; families, 



alleged extinction of urban, 336 

 Fashion, influence of, 277 

 Feelings, definition of, 213 ; function 



of, 216 



Fish, memory in, 226 

 Flowers, reversion in, 73-4 

 Fowls, reversion in, 62, 72 

 Fox, Rev. W. D., on cross-bred 



sheep, 71 ; on ducks, 73 

 Frog, memory in, 226 ; contrasted 



with man, 230 ; reflexes of pithed, 



259 



Galapagos Islands ; tameness of 



hawk, 229 

 Galton, Francis, on mid-parent, 48 ; 



on stirps, 57 ; law of inheritance, 



63, 96 ; on influence of the Church, 



285 



Germinal selection, 93 

 Germ -plasm, the bearer of heredity, 



3 ; evolution of insusceptibility to 



environment, 45, 164 

 Gilbey, Sir W. , on race-horses, 77 

 Gordon, Dr. H. Laing- ; drinking 



customs in Italy, 201 

 Gosse, on mules, 70 



Gothenburg System, 343 



Gout, 27, 161 



Grant, Principal, on temperance 



legislation, 343 

 Great men, 304, 310, 311 

 Greeks, rise and decadence of, 295 ; 



civilization of, 305 ; education of, 



317 



Grieve, Dr., on tuberculosis, 150 

 Groos, Prof. Karl, on play of 



animals, 243 

 Guiana, British, malaria in, 137 ; 



tuberculosis in, 150 

 Guita, von, on cross-bred mice, 74 



Haapa, tribe of, destroyed, 183 



Haeckel, on plastidules, 57 



Haemophilia, 28 



Hamster, instincts of, 262 



Hen, incubating instinct, 262, 326 



Henslow, Rev. G. , on regeneration, 30 



Heredity, definition of, 1 ; morpho- 

 logical theories of, 57, 63 ; doctrines 

 of, tested by disease, 112-13, 134 ; 

 tested by alcohol, 185 ; educational 

 value of study of, 326 



Heretics, prosperity of, 299 



Hipparion, 66 



Hirsch, on malaria, 136-9 ; on tuber- 

 culosis, 141, 144, 146 ; on whoop- 

 ing cough, 153 ; on antiquity of 

 diseases, 170, 175 ; on measles, 

 178 



History, natural and political, of man, 

 187 



Hoffman, on causation of variations, 

 40-1 



Hornsby, on temperance legislation, 

 343 



Huber, instincts of ants, 228 



Hunter, Dr. W. ; maternal impres- 

 sions, 27 



Hutton, on cross-bred goats, 71 



Idiots, 273 



Immunity, inborn and acquired, 112 ; 

 active and passive, 124 ; acquired 

 immunity a use-acquirement due 

 to experience of toxins, 117 ; theories 

 of acquired immunity, Pasteur's, 

 118 ; Chauveau's, 118 ; of chemical 

 neutralization, 118;Ehrlich's, 125 ; 

 acquired immunity to syphilis, 127 ; 

 conferred by mother but not by 

 father, 130 ; Negroes to malaria, 

 139, 172 



Inborn characters, definition, 5 



In-breeding, bad effects of, 97 



India, dogs in, 41 



Inheritance, blended, 47, 69 ; ex- 



