INDEX 



i«j; 



Earthworms {continued) 



reproduction of, 104 



monoecious, 185 

 Echinodermata, 178 

 Edentata, 14: 

 Eel, migrations of, 129 



influence of moon on, 14G 

 Egg, cells forming, 20 



fertilization of, 116 



rhythmic development of, 135 



contents of, 161 

 Eggs, as food, 58 



of fish, number of, 176 



shape and size, 182-3 



winter or resting, 187 

 Elater lineatus, 46 n., 47, 140 

 Elephants, 77, 78 



corpuscles of, 108 

 Elodea, 162 



Embryo sac, 172, 174, 187 

 Emulsification, 91 

 Endospores, 162 

 Enzymes, 94 

 Epidermis, 49, 53 

 Esquimaux, 86, 96 

 Euglenia viridis, 15 (fig. 4) 

 Excretion, 5 



Faculties, decay of, 192 



Fats, insoluble, 90 



animal, 94 



vegetable, 94 

 Fern, vegetative reproduction of, 

 164 



cilia of, 183 



see also under Bracken-fern 

 Fibro- vascular bundles, 51, 55 



(fig. 17) 

 Fishes, food of, 66 



deep sea, 67 



mode of swimming, 126-7 

 Fission, 163, 189 

 Flaccidity of cells, 117 

 Flagella, vibratory process, 15, 116 

 Flame-cells, 100 

 Flat- worms, 182 

 Flea, jump of, 128 

 Fledglings, voracity of, 72 

 Flight, 128-31 

 Flounder, food of, 67 

 Flowering plants, parthenogenesis 

 of, 187 



Fluke, liver-, 109 



monoecious, 1S5 



alternation of genorations, 181) 

 Food, defined, 58 



necessary constituents of, 22 

 Food reserve, 33 

 Food-vacuole, 10 

 Foraminifera, 35, 178 

 Formaldehyde, 29, 31 

 Fox, food of, 82-3 



"flying," see Bats 

 Frog, food of, 68 



shortening of intestine, 09 



temperature of, liO 



temporarily anaerobic, 112 



heart, rhythmic action of, 137 



male, 178 



eggs of, 190 

 Frutti di mare, 141 

 Fungi, 22, 94 



reproduced by spores, 162, 164 



Gall-flies, 188 



Game-birds, speed of flight, 130-1 

 Gametes, 162, 100, 174 



movement of, 183 

 Gametophytc, 171, 172 

 Gas, natural, 34 



gangrene, 113 

 Gastric juice, 91, 97 

 Gastropoda, 107 

 Gel state in colloids, 122 

 Gemmation, 165 

 Gephyrea, 178 

 Geranium, dispersal of sei'd Kv, 



121 

 Germ, 94 

 Gibbon, 83 

 Gills, of Hshcs, 103, 105 



of marine worms, 103 



of Crustacea, 1U3, 105 

 Gill-slits, 103 

 Giraffe, food of, 80 

 Gland, salivar\-, \)\ 



of swift, 12l"> 

 Globigcrina, 14 

 Gloxinia, buds of, 163 

 Glucose, 29 



Glycogen, 114, 131, 1:52 

 Goat, food of, 80 

 Gorilla, 84 



