INDEX 



393 



eggs, of fleas, 49 



of fluke, 125, 126 



of grasshopper, 10 



of hookworm, 123 



of house-fly, 41, 42 



of Hydra, 130, 132, 133 



of jelly fish, 135 



of katydid, 14 



of mosquitoes, 45, 46 



of moths, 28-30 



of spiders, 78, 80 



of sponges, 140 



of tapeworm, 127 



Elasmobranchs, 164-166 



electric-light bugs, 33 



elements, 232 



elephants, 220, 360 



elk, 222 



embryology, 334, 346, 347 



enamel, 248 



endoplasm, 142, 147 



English sparrow, 205, 206 



entoderm, 131, 133, 139, 336 



enzymes, 238 



Ephemeridas, 72 



epidermis, 283 



epiglottis, 272 



epilepsy, 303, 378, 384 



epinephrin, 281 



epiphragm, 104 



epithelium, 244, 283 



esophagus, of birds, 187 

 of crayfish, 87, 88 

 of earthworm, 116, 117 

 of grasshopper, 6 

 of man, 248, 249 



Eudorina, 333 



Eugenics, 386 



Euglena viridis, 144, 145 



Eustachian tube, 310, 347 



evolution, 341-369 



excretion, 8, 239, 277-279 



exercise, 292, 293 



expiration, 274 



eyes, of Amphioxus, 156 



of crustaceans, 84, 88, 89, 93, 



94 



of grasshopper, 2, 3 

 of man, 305-309 

 of snail, 103 

 of spiders, 76 

 of squid, 106 

 rudiments of, 349 



family, 18 



Fasciola hcpatica, 124-126 



fats, 237, 249, 251, 255 



feathers, 183-185, 195-197 



feeblemindedness, 378-381, 384, 



385 



Felidae, 223 

 femur, of grasshopper, 4 



of man, 290 

 fermentation, 237, 238 

 ferments, 238 

 Fernald, G. G., 380 

 fertilization, 160, 163, 164, 334, 



367-369 



fiber, 243, 244, 291 

 fibrillae, 243 

 fibrin, 259 

 fibrinogen, 260 

 fibula, 290 



Fishes, 48, 157, 158-168 

 fission, 143, 145, 147. 331 

 flagella, 139, 141, 144-146 

 Flagellata, 141, 144-146 

 flat worms, 122, 124-129 

 fleas, 48, 49 

 flesh flies, 42 

 flukes, 124-126 

 foot, 99, 103, 105 

 Foraminifera, 148 

 Forbush, E. H., 204 

 frogs, 169, 171-175 

 fungi, 317 



