196 



INDEX 



13, 4-8-j;^, (iO, 7j, 84, 85, 93,Hoge 66 



100, 103, 119, 155, 162, 169 Horse, evolution of, 6 

 Drosophila rejjleta 75 

 Duplication of legs 109 

 Dwarf 114 



Indian corn 172, 173 

 Interference 137, 138 



East 170, 172 

 Ebony 50, 55, 56, 115 

 Egg 91, 94 

 Elephant 191 

 Elephants" skulls 188 

 Elephants' trunks 190 

 Eml)ryology 14-23 

 Emerson 172 

 Environment 27 

 Eosin eve color 61, 107, 163 

 Erdmaiin 183 

 Evolution Creatrice 30 

 Evolution — three kinds of — 



1 ^ 4 

 Eye color 13 

 Eyeless 66. IKi 



Factorial theory 89 

 Factors of Drosophila 143 

 Fantails 172, 175 

 Fertilization 91 

 Fish 16, 20, 21 

 Flatworms 22 

 Fluctuations 12 

 Forked hristles 106 

 Fowl 76 

 Fused veins 107, 108 



Gallon 154 



Geneticist 26 



Germ-plasm 142 



Geoffrov St. Hiliare 27 



Giant 114 



Gill-slits 20, 21, 23 



Groups I, II, III, IV, 100-118 



Haeckel 15 

 Haemophilia 76 

 Heliotropism 106, 107 

 Himalyan raljbits S3 

 Historv 1, 6 



Janssens 132 

 Jauntv wing 111 

 Jennings 161, 181-184, 186 

 Joliannsen 156, 157, 159-161 

 166, 182 



Lamarck 31-34 



Langshan 76 



Leaves 147 



Leidv 186 



Lethal 105 



Linkage groups 103 



Lizard 23 



Localization of factors 118 



MacDowell 155, 170, 171 

 ]\laeritherium 191 

 Mammal 16, 21, 23 

 Man 20, 77, 125, 126 

 Map of Chromosomes 136 

 Maroon eve color 114 

 Mendel 40, 41, 52, 89 

 Mendelian heredity 39 

 Mendel's law 41-59, 64, 124 

 ^Mendel's second law 52 

 ^Mesenchyme cells 22 

 Mesoderm cells 22 

 Metaphysician 30 

 Mice 33, 178 

 :\liddleton 183 

 Miniature wing 108 

 3Iiraliilis 42 



Modifiers 163, 164, 170, 171 

 Molluscs 22 

 Mouse 83 

 Muller 112. 167 

 Mutations 35, 39, 84 



Nageli 34, 35 

 Natural Selection 

 187-194 



36, 145, 146, 



