INDEX 



Ability, inheritance of: animal, 8; 

 human, lo, 149, 151 



Ability, negro, 96 



Acquired character. See Ac- 

 quired Modification 



Acquired modification: defined, 

 loi; not inherited, 106; evi- 

 dence of Alpine flowers, 102; 

 chipmunk, 104; Chinese women, 

 105; corn, 102; Flathead In- 

 dians, 105 



Adaptation, 103, 104 



Alcohol: effects inherited, 115, 

 116,117; effects on guinea-pigs, 

 114; effects on white rats, 116; 

 influences germ cells directly, 

 116 



AlcohoUsm, 151; a symptom, 117 



Alix, pedigree of, 6 



Alpine environment, 102 



American men of science, families 

 of, 152 



Ancestry, pride in, 8, 154 



Ancon sheep, so 



Andalusian fowls, 44 



Anther, 20 



Ascaris, early separation of soma 

 and germ plasm, T09 



Athens, disposition of undesir- 

 ables in, 154 



Bach, Johann Sebastian, family 



connections, 12 

 Bateson, experiments with sweet 



peas, 86 

 Beans, pure-line, 58 

 Birth, contagion at, 118 

 Birthmarks, 82 

 Birth-rate decreasing, 152 

 Birth registration, 122 

 Blindness, inheritance of, 119 



Blueberry under domestication, 48 



Boveri, experiments with denucle- 

 ated eggs, 72 



Brachydactylism, inheritance of, 



124 

 Breeder, methods of, 64 



Breeding: mass, 57, 65; pure- 

 line, 58, 6s; selective, IS3 



Burbank, Luther, production of 

 new types, 53, 6s; plumcot, 6s; 

 potato, 54; seedless prune, 

 6s; royal walnut, 6s; Shasta 

 daisy, S3 



Cabbage, disease-resisting, si 



Cataract, inheritance of, 124 



Cattle, 48, so, 82 



Cell, 22, 23, 67, 73; division, 69, 

 71 



Characters, acquired defined, loi 

 See Acquired Modifications 



Characters, new in evolution, loi 



Charles XII, the Great, of 

 Sweden, 144, 14s 



Chickens, 43, 44, 48, 64; Andalu- 

 sian, 44; breeding for increased 

 egg production, 64 



Chinese women, feet of, los 



Chipmunk, species developed in 

 isolation, 104 



Chromatin, 69, 70 



Chromosomes, 70, 73; diploid 

 number, 75; equation division 

 of, 74; haploid number, 7s; 

 individuality of, 7S, 77; in 

 equatorial plate, 74; maternal 

 and paternal, 76; number of, 

 73; number of, in white female, 

 79; number of, in white male, 

 79, 83; odd chromosome, 78; 

 seat of factors, 81 ; sex chromo- 

 some, 79, 98; a;-chromosome, 78 



161 



