196 



INDEX 



13, 48-50, 60, 75, 84, 85, 93, 

 100, 103, 119, 155, 162, 169 

 Drosophila repleta 76 

 Duplication of legs 109 

 Dwarf 114 



East 170, 173 

 Ebony 50, 55, 56, 115 

 Egg 91, 94 

 Elephant 191 

 Elephants' skulls 188 

 Elephants' trunks 190 

 Embryology 13-23 

 Emerson 172 

 Environment 37 

 Eosin eye color 61, 107, 163 

 Erdmann 183 

 Evolution Creatrice 30 

 Evolution — three kinds of — 



1, 2, 4 

 Eye color 13 

 Eyeless 66, 115 



Factorial theory 89 

 Factors of Drosophila 143 

 Fantails 173, 175 

 Fertilization 91 

 Fish 16, 20, 31 

 Flatworms 22 

 Fluctuations 13 

 Forked bristles 106 

 Fowl 77 

 Fused veins 107, 108 



Gallon 154 



Geneticist 36 



Germ-plasm 143 



Geoffroy St. Hiliare 27 



Giant 114 



Gill-slits 20, 21, 23 



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



Haeckel 15 

 Haemophilia 77 

 Heliotropism 106, 107 

 Himalvan rabbits 83 

 History 1, 6 



Hoge 66 



Horse, evolution of, 6 



Indian corn 172, 173 

 Interference 137, 138 



Janssens 132 

 Jaunty wing 111 

 Jennings 161, 181-184, 186 

 Johannsen 156, 157, 159-161, 

 166, 182 



Lamarck 31-34 



Langshan 77 



Leaves 147 



Leidy 186 



Lethal 105 



Linkage groups 103 



Lizard 23 



Localization of factors 118 



MacDowell 155, 170, 171 

 Maeritherium 191 

 Mammal 16, 21, 23 

 Man 30, 77, 135, 126 

 Map of Chromosomes 136 

 Maroon eye color 114 

 Mendel 40, 41, 53, 89 

 Mendelian heredity 39 

 Mendel's law 41-59, 64, 124 

 Mendel's second law 53 

 Mesenchyme cells 33 

 Mesoderm cells 22 

 Metaphysician ,30 

 Mice 33, 178 

 Middleton 183 

 Miniature wing 108 

 Mirabilis 42 



Modifiers 163, 164, 170, 171 

 Molluscs 23 

 Mouse 83 

 MuUer 113, 167 

 Mutations 35, 39, 84 



Nageli 34, 35 



Natural Selection 36, 145, 146, 

 187-194 



