INDEX 



197 



Faunas and floras, 112, 113. 



Felis tigris and onca-, PI. 68. 



Fertilization, cause of variation. Si ; cross 

 and self, 42 ; of flowering plants, 152- 

 163 ; by wind, 153 ; by insects, i^etseq. 



Fescue-grass, 153, PL 87. 



Field sparrow, PI. 49, 126. 



Fish, birth-rate, 12; blind fish, 95; bluefish, 

 1 1 8, PI. 48 ; embryos, PI. 38 ; flatfish, 

 1 1 8, PI. 48; Protective coloration, 118, 

 PI. 48; sexual coloration, 52, 150; 

 sexual divergence, PI. 32. 



Flatfish, 1 1 8, PI. 48. 



Flies, drone-fly, mimics bee, 136, PI. 74; 

 fertilization of Aristolochia, 158; fertili- 

 zation of white flowers, 162; mimicry 

 of bees and wasps, 135, PL 74. 



Flora, 112, 113. 



" Florida, On the Mammals and Birds of 

 East" (Allen, J. A.), 9. 



Flounder, protective color, PL 48. 



Flower, W. H., 94, PL 44, PI. 68, PL 72. 



Flowers, diagrams of various, PL 86 ; insect 

 visitors, 162; landing place for insects, 

 163, PL 89, PL 90 ; of Aristolochia, 158, 

 PL 90; of Mitchella, 156, PL SS ; of 

 orchid, 156, PL 89, PL 90: of Sak-ia, 

 1 5 7, PL 89 ; of wind-fertilized plants, 153. 



Forbes, H. O., 127, 144, 145. 



Fossils, conditions for the formation and 

 preservation of, 104; table of fossiliferous 

 rocks, 105; marsupials of America, 113. 



Fowl, see Chickens. 



Fox, aggressive coloration, 126; Arctic, 126, 

 127; segregation, 60. 



Fox, Rev. W. D., mating of Chinese geese, 

 48. 



Friar-bird, 144, PL So. 



Frog, aggressive color, 126; gastrula, PL 42 ; 

 noxious insects, 130; protective color, 120. 



Gagea lutea, PL 86. 



Galapagos Islands, segregation of locusts, 



60, 62. 



Galeus, nictitating membrane, PI. 36. 

 Galileo, Intro, ix. 

 Game cock, evolution of, PL 16. 

 Gastrula, coral polyp, 102 ; various animals, 



103 ; vertebrates, 102, PL 42. 

 Gazelle, white rump patch, 146. 

 General considerations, 183-188. 

 General principles in operation of natural 



selection, 20. 

 Geographical distribution, 87, III-II6. 



Gerarde, 5. 



Germ cells, 69; and variation, 79; nutrition 



of, So. 



Germinal selection, 96. 

 "Germinal Selection" (\Veismann), 189. 

 "Germ Plasm, The " (Weismann), 189. 

 Gibbon, 164, PL 91. 

 Giesbrecht, 57. 



Gila monster (lizard), 133, PL 72. 

 Giraldus, Sylvester, 3. 

 Goat, protective color in wild, 120. 

 Goldfinch, American, sexual coloration, 150. 

 Goodale, William, PL 88. 

 Goose, barnacle, 3, 4, j , mating of white 



and Chinese, 48; variation slight, 8. 

 Gorilla, 164, PL 91, PL 92. 

 Gould, PL 25, PL So. 

 Government, progress in, 176. 

 Crackle, sexual coloration, 150. 

 Grapta, PL 83. 

 Grass, fertilization, 153. 

 Grasshopper, confusing coloration, 147, 



PL 83; leaf, 123, PL 62; mimicking 



beetles, 135, PL 73. 

 Grass Porgy, 121, PL jS. 

 Gravitation, Intro, ix. 

 Gray's " Anatomy," 95, PL 96. 

 Greeks, 176; conception of origin of animals 



from plants, 3. 6. 

 Greenland whale, skeleton, 94. 

 Grip, strength of, of human infant, 1 66, 



PL 100. 



Groos, courtship, 54, 57. 

 Grouse, birth-rate, 12; ruffed grouse, 1 1 8, 



PL 23 ; snow grouse, 121, PL 37. 

 Gulick, John T., segregation of land snails 



of Oahu, 63, 64. 



Habrocestuin howardii, PL 28; splendetis, 



PL Sj. 



Haeckel, Ernst, 102, PL 21, PL 38, PL 98. 

 Hair, change of function, 38; of man and 



ape, 94, 164, PL 37, PL 93. 

 " Handbook of Birds of Eastern North 



America" (Chapman), 49. 

 Haswell, W. A., PL 44. 

 Hawaiian Islands, segregation in land snails, 



63- 



Hawk moth, elephant, 139, 140, PL 78. 

 Hayes, PL 4. 



Heart, change of function, 38. 

 Hebomoia glaucippe, PL 83. 

 Heli anthem um marifolium, 

 Heliconidit, 132, PL 77. 



