876 



INDEX 



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- 

 elusive, 47, 69, 74 ; particulate, 48, 

 69, 74 



Insanity, increase of, 348 



Instability, mental, 159 



Instincts, 220 ; definition of, 221 ; 

 nature of, 225 ; of sitaris, 222 ; of 

 dragon-fly, 224, 263 ; of man, 224, 

 238, 273, 292 ; parental, 239, 275 ; 

 sexual, 239, 275 ; for food, 239 ; of 

 curiosity, 240 ; of imitativeness, 

 240 ; of sporting, 241, 315 ; aims of, 

 unknown to possessors, 243 ; con- 

 fused with acquirements, 244 ; with 

 reflexes, 263 ; lack of forethought 

 in, 261 ; deferred, 227, 273 



Intellect, ossification of, 330 



Intelligence, distinguished from 

 reason, 220 ; of human races, 294 



Jaeger, on pigs, 70 



James, Prof. W., on dipsomaniacs, 



206 ; on sensations in joints, 209 ; 



on physical basis of emotions, 213 ; 



on memory and consciousness, 223 ; 



on automatic actions, 254 ; on 



instincts, 262, 263 ; on reflexes, 265 

 Japanese, 312 ; mice, 74 

 Jealousy, 276 

 Jews, consumption of alcohol, 202 



Kanthack, on acquired immunity, 133 

 Kingsley, Miss M., on malaria, 172 

 Knowledge, traditional, of animals, 



229 ; meaning of word, 251 

 Koch, antitoxic treatment of tuber- 

 culosis, 117 ; on malaria, 172 



Laennec, on tuberculosis, 145 



Lamarckian theory of heredity and 

 evolution, 11, 14 ; inadequate to 

 explain facts, 15 ; incompatible 

 with Neo-Darwinian, 19, 23 ; 

 evidence against, 22, 157 ; applied 

 to disease, 113, 134 ; fundamental 

 error of, 249 



Lancet, The, 115, 333 



Latency, 61-66, 74, 370-1 



Law, respect for, 311, 340 



Lecky, on Pagan religion, 305 ; on 

 early Christianity, 306 ; on medi- 

 aeval lunatic asylums, 349 



Leprosy, 117, 170 



Letters, art of, 324 



Lewes, on mental evolution, 249, 266, 

 268 



Lobster, reproduction of claw, 31 



Lombroso, on insanity, 348 



Lubarsch, on anthrax, 129 



Lunacy, report of Commissioners 

 (England and Scotland), 348 ; in 

 Ireland, 348 



Luther, on Aristotle, 309 



Mackenzie, Dr. W. Leslie, on physical 

 deterioration, 332 



Macpherson, Dr. John, on lunacy in 

 Ireland, 348 



Maher, Father, on instinct and 

 reason, 236 



Mahomedans, mental peculiarities of, 

 297 



Malaria ; periods of intermission and 

 remission, 117 ; evolution against, 

 135 ; effects of environment, 137, 

 138; in Walcheren, 140 ; suscepti- 

 bility of young Negroes to, 172 



Man, natural history of, 187 ; peculiar 

 distinction of, 235, 273 ; helpless- 

 ness at birth of, 246 ; structural 

 changes of, 273 ; regression in, 273 ; 

 mental differences in, 280 ; instincts 

 of, 224, 238, 273, 292 



Manson, on malaria, 169 



Masters, on Tropaeolum, 73 



Maternal impressions, 26, 27 



Maupas, multiplication of infusor- 

 ians, 3, 20 



Measles, immunity to, 112 ; in 

 Western Hemisphere, 151, 178 



Medical men, neglect of study of 

 heredity by, 2, 328, 334 ; materials 

 for study of heredity, 2, 110 ; con- 

 fusion of terms, 7, 157 ; on causa- 

 tion of variations, 166 ; education 

 of, 325, 328 



Melons, crossing of, 97 



Memory, in sitaris, 222 ; in crab, 

 223 ; in oyster, fish, amphibians, 

 reptiles, 226 ; in man, 291 ; in 

 social animals, 227 ; in ants, 228 ; 

 conscious and unconscious, 259 



Mendel, on cross-breeding, 63, 74, 357 



Mendelian characters, 63, 74, 357 ; in 

 peas, seeds, flowers, mice, rabbits, 

 stocks, guinea pigs, 359 ; in man, 

 360-1 ; explanation of, 368 



Mendelism, Appendix B, p. 357 



Methylated spirit, as beverage, 339 



