Index 



493 



Flagella, 92 



Flagellates, 92-3, 95, 98; light 



reactions, 306 

 Flagstones, see Caithness 

 Flatfish, 358 ; color adaptation, 333 

 Flatworm, regeneration, 193 

 Fleas, see Plague 

 Flexner, 448, 480 

 Flies, and disease, 455-7 

 control, 456 

 increase, 455 

 see Mimicry 

 Flight, see Birds 

 ' ' Flora boreali-Americana, ' ' see 



Miehaux 



Florida Everglades, 178 

 Flotation, means, 358, 360 

 Flowers, reproduction, 98-9; ill., 99 



see Color, Insects 

 Fluted scale, see Scale 

 Fly, see Hessian, Mimicry 

 Flying lizards, see Pterodactyls 

 Food changes in body, 294-6 

 Foot and mouth disease, 409 

 Foot binding, 244 

 Foraminifera, 352 

 fossil, 120 

 shells, 92 



Forced movements, see Tropism 

 Forests, hardwood, swamp, distri- 

 bution, 178 



Fortuitous, see Variation 

 Fossil, see Algse, Annelid, Centi- 

 pede, Coral, Crustacea, For- 

 aminifera, Insects, Inverte- 

 brates, Land plant, Lung- 

 fish, Nautilids, Ostracoderm, 

 Radiolaria, Scorpion, Shark, 

 Snail, Spider, Trilobite, 

 Vulture, Worm 

 Four o'clock, sec Inheritance 

 Fowl, Andalusian, see Inheritance 



rumpless, see Mutation 

 Fowls, sex determination, see 



Birds 

 Fox farming, 425; see Arctic, 



Bed 



Fox-tail pine, distribution, 172 

 Franklin, Benjamin, 349 



Sir John, 36, 37, 381 

 Frog, artificial parthenogenesis, 



329 



cleavage cell experiments, 192 

 color changes, 333 

 grafting, ill. 195-6 

 regeneration, 193 

 sex determination, 230 

 survival in ice, 381 



Frog, sec Intercrossing 

 Fruit flies, see Drosophila 

 Fundulus, mating reactions, 314 

 Fungus and fish eggs, 428, 430 

 Fur farming, see Fox 



G 



Galen, 470 



Galton, 269 



Game and Bird reservations, 420, 

 423 



Gametophyte, see Algae; Alterna- 

 tion of generations; Ferns, 

 reproduction ; Eeproduction 



Gammarus, light response, 315 



Gardens, see Zoological and Bo- 

 tanical 



Gar pike, destruction, 119 



Genetics, practical value, 266 et 

 seq. 



Geographical distribution, see U. 

 S. Biological Survey 



Geographic race, see Species 



Geotropism, plants, 308, 311 



Generations, see Alternation 



Gephyrea, sex determination, 232- 

 233 



Germ cells, see Sex cells 



Germ layers, 105 



Giant club mosses, see Lycopods 



Giant condor, 148 



Giant sloth, 146 



Giant wolf, 148 



Gigantactus, 355 



Gilbert, 43 



Gill, 54 



Gills, sec Amphioxus; Balanoglos- 

 sus ; Cyclostomes ; Fish ; 

 Lungfish ; Man ; Stegoce- 

 phala, larvae ; Tunicates ; 

 Vertebrates 



Girard, 39 



Glaciers, influence, see Plants 



Glands, mouth, ferment, 295 

 see Adrenal; Internal secretion; 

 Kidney ; Liver ; Pancreas ; 

 Sex ; Thyroid ; Tunicates, 

 structure 



Glanders, field mice immune, 447 



Glandular extracts, see Biological 

 remedies 



Globigerina, invariability, 120 

 ooze, 352 



Glochidium, 436 ; ill. 435 



Glycogen, storage, 296 



Goat, see Kocky Mountain 



Goddard, quoted, 270-1 



