522 



INDEX 



Ectobia germanica, 

 Eels, 249 

 Eel-worms, 80 

 Egg, fertilization, 46 

 Elaphidion villositm, 513 

 Elaps fitlviits, 270 

 Elasmobranchii, 245 

 Electric-rays, 247 

 Elephant-fishes, 247 

 Elephantiasis, 84 

 Elk, 303 

 Elm, aphis, *5i2 



leaf-beetles, 511 

 Embiotocidae, 253 

 Embryology, 45 

 Embryonic development, 45 

 Emulsion, kerosene, 416 



distillate oil, 416 



carbolic acid, 417 

 Endentata, 300 

 Engraulidse, 250 

 Entero-hepatitis, 351 

 Entomostraca, 113 

 Eohippus, 325 

 Ephemeridse, 156 

 Ephestia kuehniella, 497 

 Epitrix sp. 477 



E. parvula, 501 

 Epochra canadensis, 470, *47i 

 Equus, 326 



E. caballus fossil-is, 325 



E. onager, 327 



E. przewalski, 325 



E. tceniopus, 327 

 Erethizon dorsatus, 308 



E. epixanthus, 308 

 Erethizontidae, 306 

 Eriophycs, 213 



E. pyri, 434 

 Ermine, 314 

 Esocidae, 252 

 Eitglcna, 34 

 Eulachon, 252 

 Eumetopias stelleri, 318 

 Euplexoptera, 164 

 Eu-proctis chrysorrhcea, *5og 

 European fruit-Lecanium, 448 

 Eutetlix lenella, 483 

 Euthrips pyri, 433 

 Evolution, 335 



factors, 336 



proof, 344 



Eyes, compound, 130 

 facets, *i32 



longitudinal section, *i3i 

 simple, 132 



Fasciola hepatica, 70, *7i 



F. magna, 72 

 Families, defined, 52 

 Feather-stars, 97 

 Felidae, 312 

 Felis concolor, 313 



F. maniculata, 325 



F. pardalis, 313 



F. onca, 313 

 Feridas, 312 

 Fertilization of egg, 46 

 Fiber zibethicus, 309 

 Fidia viticida, 465 

 Field and forage crops, insects 



affecting, 489 

 Fig- wasp, 181 

 Filar ia bancrofti, 84 



F. loa, 86 



F. medinensis, 86 

 Filaria in mosquito, 

 Fish culture, 242 



__ 



epidemics among, 365 

 Flat-worms, 69 



classification, 77 

 Flea-beetles, 477 

 Flea, 172 



cat and dog, 173, 376 



human, "173, *3?6 



plague, 375, 376 



rat, 376 

 Flesh-flies, 388 

 Flies, two-winged, 170 

 Flounder, 253, *254 

 Foraminifera, 33 

 Forest and shade trees, insects 



affecting, 506 

 Foxes, 313 

 Fringe- wings, 166 

 Fringilla canariensis, 333 

 Fringillidae, 285 

 Frog, *4, 257 



external structure, 5 



internal structure, 6 



life-history and habits, 12 



skeleton, *n 



