Index 



163 



Grape, Concord, 4g 



Gviinea-pigs: Brown-Sequard ex- 

 periments with, io6; Mendelian 

 inheritance of coat color, 42; 

 Stockard's experiments with 

 , alcoholized, 114; transplanted 

 ovaries in, no 



Haploid number of chromosomes, 



75. 79 

 Hapsburg jaw, 30 

 Harelip, 87 



Heredity. See Inheritance 

 Hereford cattle, 50 

 HohenzoUems, pedigree of, 142, 



143 

 Honey production, 8 

 Horse, champion trotting, 5 

 Hybrid, 34, 43, 44, 62 

 Hybridization, 46, 57, 60 



Identical twins, 83 



Immigrants, inspection for de- 

 fectives, 131 



Inbreeding, 116, 117 



Inheritance: laws of, 30, 31; of 

 ability, 8, 10, 149, 151; of 

 acquired modifications, 101-6; 

 of alcoholism, 115; of blind- 

 ness, 126; of cataract, 124; of 

 disease, in, 119; of epilepsy, 

 151; of feeble-mindedness, 119, 

 123, 128, 132; of human char- 

 acters, 122; of insanity, 134, 

 140; of tuberculosis, in; 

 social, 112, 113 



Insanity, inheritance of, 119, 123, 

 134. 151 



Isaac and Rebekah, 146 



Isabella, queen of Spain, 139, 141 



Isolation, geographical, 104 



Jacob and the spotted cattle, 82 

 Johannson's pure-line beans, 58 

 Judges, EngUsh, n 

 Jukes, 13 



Kallikak, Martin, 132 

 King MeUa Rioter, 8, 9, 14 



Law, Mendel's, 30, 31 

 Learning in white rats, 116 



Mandrake or May apple blossom, 

 parts of, 19, 24 



Marriage, age of, 153 



Max-Jukes and progeny, 13, 15 



Melia Rioter, 14, pedigree of, 9 



Mendel, Gregor, 31 



Mendehan ratios, 41, 42 



Mendel's law, 32, 149 



Messenger, 6, 7 



Milk production, 8 



Mitosis or cell division, 69-71 



Modifications, acquired. See Ac- 

 quired Modifications 



Mulatto, 94 



Mutation, 53 



Navel orange, 50 

 Negro, 94, 96 



Nilsson-Ehle and work of Swedish 

 experiment stationj 93 



Orange, navel, 50 

 Ovaries of guinea-pig trans- 

 planted, no 

 Ovary, 21 

 Ovules, 21 

 Ovum or egg. See Egg 



Pacers from Messenger stock, 8 



Peas, 31, 86, 87; sweet, Bateson's 

 experiments with, 86 



Pedigree; of Alix, 6; of Bach 

 family, 12; of Charles XII, 

 144; of Darwin family, 10; of 

 Ferdinand and Isabella, 139; of 

 HohenzoUerns, 142; of Melia 

 Rioter 14, 9; of Peter the 

 Great, 137 



Peter the Great, 137 



