Cross-fertilization 75-81 



Crossing-over 109. 121-124 



Crossing of Cheviot and 

 Leicester . 79 



Cumulative type of factor.. 107 



Curve of variation 24, 25 



Cytisus adami 56 



re. 



.13- 



D 



Darwin, Charles, 

 5. 13, 5 



" Erasmus . . 



" family .... 



DarAvinism 



Davenport, C. B 1 



Davis. B. M 



DeCandolle's law 



Degressive mutation 



Delage. Yves 1 



Determinants 30, 



Determiners 109, 1 



Deviation, average 25- 



46 

 10 

 67 

 16 

 64 

 67 

 32 

 50 

 41 

 55 

 43 

 26 



25-26 



8, 53. 65. 155 



87 



60 

 59 



standard 

 De\'ries. Hugo. . 



Dihybrids 



Disease resistance 159 



transmission 58 



Distribution of animiils and 



plants 



Divergence in evolution . . . 



Dog 33, 1 



Dominance, imperfect 1 



of linked characters 

 Dominant character, 



82, 83. 91-95. 100, 1 



Dorset sheej) 1 



Draba vern^ 



Drosophila, 51, 69, 108, 



110, 112-114. 119, 139, 



" breeding of 



Duplex '. 95, 



32 



I.' 

 70 

 01 

 81 



68 

 14 

 20 



49 

 21 

 44 



East, E. M.. 77. 78, 



81, 97, 102-103, 146, 148, 



151, 152, 168 



Edwards family 166 



Egg cell 40 



" production in fowls 118. 119 



Eimer 21 



Elementary species, 8, 20, 66 



Embryo 41-44 



Endomixis 29 



Endosperm inheritance 124 



Environment 45 



Epilepsy 59, 168 



Eugenics 161-171 



Euthenics 161-171 



Evening Primrose, La- 

 marck's 66-68 



Evidences of Organic Evo- 

 lution 15 



Evolution 5, 9-12, 18. 20 



Eye color .. 126. 140. 163, 168 

 Experimental method of in- 

 \ estigating heredity . . 46, 81 



F 



E generation 74. 84 



f' generation. .. .74. 84. 96. 15S 



Factor 95. 109 



inhibitory 107 



multiple 101. 102 



compound 101 



complementary ... 104 



" supplementary. . . . 107 



Factorial hypothesis... 95. 109 



Fecundity in poultiy .. 118-119 



Feeble-mindcdness. 62, 167-171 



Fern. Boston 38 



Fertili/.ation 41. 80 



Filial regression, law of. . 47 



Fixity of si>ecies 9 



Fluctuating variations, 



19, 23. 69. 70. 156 



Fowl hybrids 11' 



Free martin 146 



Frequency, curve of 23 



Function 12 



G 



Gallon. Sir Francis. 23, 



46. 52, 53. 65. 74. 162 



laws of 47. 151 



Gametes 40, 130, 134 



Ijurity of 96 



Gametogenesis 44 



Garden peas 37. 83 



(Jates, K. R 69 



CJemmules . . : 52, 77 



Gene 95, 109, 140 



Genetics 6, 153 



history of 171-174 



Genotype 84. 95 



Geological c\idence of evo- 

 lution 15 



Germ cell.s 40, 54. 96. 130 



" plasm, 53, 54, 59, 61, 



63, 64, 71, 73 

 " plasm theory 53 



is: 



