540 



THE LAWS OF HEREDITY 



Biologists, as essayists, 184-5 ; contrasted 

 with students of other sciences, 509-10 ; 

 education of, 510 et seq. 



Biometry, 36, 133 et seq., 226, 261, 409, 428 

 et seq., 443, 447, 509; wasted labours of, 

 136 et seq. 



Black Death, the, 271-2 



Blending, abnormal, of sexual traits, 146 ; 

 normal, 195; of Mendelian traits 1 60- 1, 196; 

 of crossed human races, 173-4 ; of fluctua- 

 tions, 189 ; meaning of term, 194-5 ; the 

 only exception to, 195; of mutations, 196 ; 

 effects of, 197 



Bosanquet, Dr W. C. , on immunity, 238 ; on 

 virulence, 238 



Botany, systematic, 33, 504; method of, 



39. 54 



Brain, relation to mind, 362 et seq. ; evolu- 

 tion of, 396-7 ; relation of size to intelli- 

 gence, 434-5 



Branthwaite, Dr, on alcoholism and feeble- 

 mindedness, 316 



British, the, intemperance of, 305 ; alleged 

 mental deterioration of, 430 



British Medical Association, investigation on 

 alcoholism, 295-6 



Brown-Se"quard, on transmission of acquire- 

 ments, 73 



Bum pus, on Natural Selection, 136 



Bushmen of New Zealand, drinking habits 

 of, 288 



CANADA, temperance legislation in, 462 

 Canaries, varietal crossings of, 156 

 Cancer, 103 

 Capacity, for growth, 6 ; mental, 421 et seq. \ 



variations in, 425 ; definition of, 438 

 Carnivora, immunity to septic poisoning, 89 

 Casas, las, Bishop, philanthropic efforts, 280 

 Castle, Prof. W. E. , on dominance, 157 ; on 

 gametic purity, 161 ; on mutation hypo- 

 thesis, 170; on Mendelian inheritance of 

 sexual traits, 191 



Caterpillar, development of, 120; instincts 

 fi 3?6-7i 379 ; lack of memory, 379, 422 ; 

 mental growth of, 421 



Catholics, Roman, mental traits of, 427, 495 

 Causation, chain of, 47-8, 349 ; circle of, 350 

 Cause and effect, 343, 350 

 Cells, in uni- and multicellular organisms, 

 i ; multiplication of, i ; daughter-, i ; 

 specialization of, i ; contractility of, and 

 mind, 368-70 

 Cell-community, i 

 Cephalic index, 429 



Cerebrum, association with memory, 396 

 Chapters in development, missing, 27 

 Characters, relation to germ-plasm, 8 ; inborn 

 and acquired, 15-16 ; changes during evolu- 

 tion, 118 ; non-adaptive, 219, 391-2 

 Chauveau, Prof., on immunity, 243 

 Chemistry, study of compared with that ot 



biology, 31, 34, 54 

 Chicken-pox, deaths due to, 260 ; compared 



to tobacco, 308 



Child, mental peculiarities of, 394 ; education 

 of, 480 ; effects of religious training on, 

 487 



Chinese, drunkenness among, 306 ; brains of, 



Chloroform, craving for, 289 

 Chromatin, as bearer of heredity, 3 

 Chromosomes, numbers of, 131 

 Civilization, effects of, 222 et seq.; and 



disease, 269 et seq. , 278 ; and alcohol, 298 ; 



and prohibition, 459 et seq. 

 Civilized man, distinction from savage, 397 

 Classical, teaching, 501 

 Classification of facts, 36 et seq.; of feelings, 



Clayton, experiments on beans, 84, 97 

 Clifford, on science, 37 ; on idealism, 335 ; 



on relation of mind to body, 357 

 Climates, healthy and unhealthy, 263 ; and 



intemperance, 311 



Cocaine, use as substitute for alcohol, 463 

 Cochin fowl, 155 

 Cockburn, Sir J., on intelligence of Australian 



Blacks, 469 



Coherence of thought, 329 et seq., 340 

 Colour-blindness, inheritance of, 189 

 Columbus, voyage of, 278 

 Committee of Fifty, investigation by, 463 

 Common sense, definition of, 324 

 Conception, mental, 326 

 Confidence trick in science, 510 

 Conjugation, not a necessary antecedent of 



reproduction, 2, 142 ; effects of, 144, 188 ; 



function of, 202 



Contributions, ancestral, 126 et seq. 

 Controversy, utility of, 45 

 Cope, Prof., on evolution, n 

 Correlation, 70-1, 182, 261 ; between size of 



brain and mental capacity, 434 

 Cowpox, 238 

 Crabs, changes of sex, 114; blind, 123 ; lack 



of memory in, 407 

 Crawley, Rev. A. G. , on religion of savages, 



488 

 Crichton-Browne, Sir J., on mental defects, 



468 



Crime, causation of, 494 

 Criteria, for facts and thinking, 32, 505-6, 512 

 Crucial instances, 165 

 Cuba, imported disease, 280 

 Cue"not, Prof., theory of factors and deter- 

 miners, 164, 166 



Curiosity, instinct of, 385 ; in education, 478-9 

 Cypris reptans, stability of, 201 



D 



DANDELIONS, parthenogenesis in, 148 



Darbishire, Mr A. D., experiments on mice, 

 163 



Darien, British colony in, 235 



Dark Ages, diseases in, 269 ; mental training 

 in, 497 



Darwin, Charles, hypothesis of pangenesis, 

 5, 66 ; belief in the transmission of acquire- 

 ments, 61 ; on retrogression, 112 ; on 

 latency, 113-4, 165, 177 ; belief in blended 

 inheritance, 150 ; on reversion in pure-bred 

 races, 165-6 ; on artificial selection, 176 ; 

 method of work, 185, 214-5 ; on effects of 

 crossing, 198 ; use of deduction by, 212-3, 

 346 ; his teaching, 212, 391, 505 ; on 

 memory, 405 ; the Newton of biology, 506 



