INDEX 



Histogenesis, 152 

 Histolysis, 152 

 Hogs, 327 

 Holocephali, 247 

 Holothuroidea, 96 

 Homarus amcricanus, 117 



H. grammar-is, 117 

 Hominidae, 320 

 Homoptera, 165 

 Homo sapiens, 320 

 Honey-bee, 184, 185. *i86,*334, 



antenna, *i3o 



external structure, *i27 



legs, *i33 



mouth-parts, *i2q 



queen, drone, worker, *i86 



reproductive organs, 143 



ventral view of worker, ""IQI 

 Hookworm, *82 



disease, 81 



Old World, *83 

 Horned toad, 267 

 Horn-flies, 387 

 Horn-worms, 499 

 Horse-fly, *i-ji, *386 

 Horses, 325, * 3 27 



four-toed, 326 

 House-fly, and disease, 377, *378 



foot, *38o 



head, *37 9 



larvae and pupae, *38i 



mouth-parts, *i47 

 Hydra, longitudinal section, *23 



structure and habits, 21, *22 

 Hydrocyanic acid gas, 418 

 Bydrodamalis gigas, 301 

 Hydroids, 64 

 Hydrozoa, 64 

 Hyla versicolor, 258 

 Hylastinus obscurus, 502 

 Hylidse, 258 

 Hymenoptera, 179 

 Hypoderma lincata, *39O 

 larvae, *3gi 

 //. bovis, 390 



Iccrya purchasi, 407, *4o8, *459 



Ichneumon-fly, *i8i 



Ichneumonidae, 180 



Icthyosaurians, 261 



Iguanas, 267 



Imported grape root-worm, 466 



Imported cabbage- worm, 480, *48i 



current-borer, ^69 

 Infantile paralysis, 366 

 Infusoria, 34 

 Insecta, 125 

 Insecticides, 413 

 Insectivora, 311 

 Insects, 125 



antennae, 129, *i3o 



classification, 153 



controlling, 403 



natural enemies, 405 



parasites, 407, 408 



predaceous, 407 



senses, 129 

 Ipidae,5i5 ' 

 I PS, 5i5 



Iridomyrmex humilis, 398, *399 

 Ischnochiton magdalenensis, *22i 

 Isolation, 343 



Isopod, *I2I 



Isopoda, 121 

 Isoptera, 159 

 Isosoma tritici, 495 

 /. grand i, 495 

 Itch-mite, *2i4 

 Ixodes ricinus, *2io 

 Jaguar, 313 

 Janus integer, 469 

 Jelly-fishes, 64, *6$ 

 Jew-fish, 253 

 Jiggers, 213 



JuluS Sp., *I24 



Kangaroo, 300 



Katydids producing sounds, 163 



Kiwi, 274 



Ladybird-beetle, *4oy 

 Lake-flies, 156 

 Lamellibranchia, 221 

 Lampreys, 239 

 Lampro pelt-is boyli, *26g 

 Lamp-shells, 88 

 Lancelet, 238 

 Lasioderma serricorne, 502 

 Lasiunis borealis, 312 

 Las ins bntnneus, 492 

 Lalax lutris, 314 

 Laterodcctus mactans, 207 

 Lead, arsenate, 415 

 Lecanium corn}, 

 Leeches, 104 



