3^4 



INDEX. 



"Diverse" and "complex" environ- 

 ments, definition of, 31 



Drink, a more terrible poison than any 

 zymotic virus, 218 



Drug?, action of, on different indi- 

 viduals, 157 



Duncan, J. Matthews, on dysmenor- 

 rhea, 53 



E 



E, action of, independently of selec- 

 tion, 185 

 importance of studying the, of 



our ancestors, 85 

 is the primary cause of natural 

 variation, 333 

 Education, 30, 63 

 Eliot, George, on sexual heredity, 72, 



321 

 Embryo during gestation, influence of 



the E upon, 130 

 Emotions, physiology of, 66 

 Environment, definition of easy and 

 rigorous, 255 

 distinction between natural and 



artificial, 284 

 influence of, upon cell action, 17, 



19 



is the primary cause of natural 



variations, 333 

 varies widely with the nature of 

 structure, 156 

 Epithelioma, squamous, 113, 345 

 Equilibration, direct and indirect, 188 

 Europeans and savages, first meeting 



of, and disease, 238 

 Evolution, and dissolution opposite pro- 



in the two sexes, 269 



of species, 185 



of man, diagram representing, 86 



of disease, a paradoxical term, 

 277 

 Exercise, importance of, 100 

 Existence, cause of struggle for, 186 



struggle for, far greater amongst 

 civilized than amongst primi- 

 tive peoples, 256 



External-body-E, 178 



its influence on the structure of 



the individual, 147 

 analysis of, 29 

 Darwin's division of, 29 

 diversity of, 33 



Fagge, Hilton, on the causation of 



tubercle, 173 

 Fallacy, a common, 258 

 Family history, difficulty in obtaining, 



327 



Fatty changes abound in old age, 351 

 Fevers, specific, de novo origin of, 



234 n 

 Fiji Islands, and measles, 325 

 Fixity of structural peculiarities, 84 

 Flea-bite hereditary, 173 

 Foetus, affected by mother's blood, 131 



by pressure, 133 

 Food, the proper, for man, 100 



natural and artificial, 149 

 Forms of E, complex, 293 

 Function, 308 



meaning of, as applied to a multi- 

 cellular organism, 309 

 Functional disorders in which S is 

 normal, E nocuous, 310 



dissolution, 93 



efficiency, 304 



G 



Galton, on hereditary genius, 321 



Gamogenesis, 37, 44 



Garrod on gout and rheumatoid 



arthritis, 83 

 Gout-producing E, the, 338 

 Gowers, Dr., on the causes of epilepsy, 



170 n, 329 

 " Graft hybridism," 41 

 Granulation tissue, cells composing, 



"3 



Granulomata and sarcomata, 359 

 Gravitation, meaning of, I 

 Greswell, Dr., on the origin of tumours 

 by reversion, no 



