INDEX 



205 



"Evolution Theory, The" (Weismann), 

 191, 197. 



Extirpation of organs, effects of, 34. 



Eye, deterioration of human, 170; of cave- 

 dwelling animals, 95; of various ver- 

 tebrates, PL 97. 



Factors in evolution, Intro, xi, 82, 188. 



"Factors of Organic Evolution, The" 

 (Cope), 198. 



Family, 24, 182. 



Faroe Islands, segregation of sheep, 65. 



Faunas and floras, 112, 113. 



Felis tigris and onca. PI. 68. 



Fertilization, cause of variation, 81; cross 

 and self, 42 ; of flowering plants, 1 5 2-1 63 ; 

 by wind, 153; by insects, 154 et seq. 



Fescue-grass, 153, PL 87. 



Field sparrow, P . 49, 126. 



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

 fish, 118: PL 48; embryos, PL 38; 

 flatfish, 1 1 8, PL 48; protective colora- 

 tion, 118, PL 48; sexual coloration, 52, 

 150; sexual divergence, PL 32. 



Flatfish, 118, PL 48. 



Flies, drone-fly, mimics bee, 136, PL 74; 

 fertilization of Aristolochia, 158; fer- 

 tilization of white flowers, 162; mimi- 

 cry 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, PI. 44, PI. 68. 



Flowers, diagrams of various, PL 86; 

 insect visitors, 162; landing place for 

 insects, 163, PL 89, PL 90; of Aris- 

 tolochia, 158, PI. 90; of Mitchella, 156, 

 PL 88; of orchid, 156, PL 89, PL 90; 

 of Salvia, 157, PL 89; of wind-fer- 

 tilized plants, 153. 



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



Fossils, conditions for the format ; on and 

 preservation of, 104; table of fos- 

 siliferous 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 80. 



Fr g> aggressive color, 126; gastrula, PL 42; 

 noxious insects, 1 30; protective color, 120. 



Gagea lutea, PL 86. 



Galapagos Islands, segregation of locusts, 

 60, 62. 



Galeus, nictitating membrane, PL 36. 



Galileo, Intro, ix. 



Game cock, evolution of, PI. 16. 



Gastrula, coral polyp, 102; various ani- 

 mals, 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, m-ii6. 



Gerarde, 5. 



Germ cells, 69; and variation, 79; nutri- 

 tion of, 80; organization of, 191. 



Germinal selection, 96, 191. 



"Germinal Selection" (Weismann), 191, 

 197. 



"Germ Plasm, The" (Weismann), 191, 

 197. 



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, 5; mating of white 

 and Chinese, 48; variation slight, 

 8. 



Gorilla. 164, PL 91, PI. 92. 



Gould, PI. 25, PI. 80. 



Government, progress in, 176. 



Grackle, sexual coloration, 150. 



Grapta, PI. 83. 



Grass, fertilization, 153. 



Grasshopper, confusing coloration, 147, 

 PL 83; leaf, 123, PL 62; mimicking 

 beetles, 135, PL 73. 



Grass porgy, 121, PL 58. 



Gravitation, Intro, ix. 



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



Greeks, 176; conception of origin of ani- 

 mals from plants, 3, 6. 



Greenland whale, skeleton, 94. 



Grip, strength of, of human infant, 166, 

 PL 100. 



Groos, courtship, 54, 57. 



Grouse, birth-rate, 12; ruffed grouse, 118, 

 PL 23; snow grouse, 121, PL 57 



Gulick, John T., segregation of land snails 

 of Oahu, 63, 64. 



