INDEX. 



527 



Hedgehogs, 499 

 Helicidoj, 297, 299, 301 

 Helix aspersa, 302 



II caperafa, 302 



n nemoraliSf 302 



II virgata, 302 

 Heliozoa, 17 

 HemerobiidsK, 286 

 Hemiptera, 144 



ti -heteroptera, 261, 276 

 ,1 -homoptera, 261, 262 



Hepato-portal system, 344 

 Uepialus humuU, 199 



II lupuUnus, 198 

 Heron, the, 380 

 Hessian Fly, the, 220 

 3eterakis, 508 

 Heterocera, 192 

 Heterodera, 79 



ri radicicola, 84 



II schachtiij 83 



Heterogyna, 173 

 Heterotricha, 30 

 Hexactiniaj 34 

 Hexapoda, 138 

 Hipparion, the, 466 

 Hippidion, the, 466 

 Sippoiosca equina, 255 

 II maculata, 256 



II rujipes, 256 



Hirudinea, 93 

 Hirundo rustica, 423 

 Histolysis, 142 

 Hobhy, the, 382 

 Hock, of horse, 326 

 Holland cattle, 482 

 Holoblastic segmentation, 450 

 Holotricha, 30 

 Honey-bee, 176 

 Hoofed animals, 461-463 

 Hoose, 68 

 Hop Aphis, 265 



I, flea, 151 



I, Frog-fly, 276 

 Hoplocampa testudinea, 191 

 Hornet, 175 



Horns, of artiodactyla, 469 ; of ante- 

 lopes, 478; of sheep, 478 ; of oxen, 



ih. 

 Horse, skeleton of, 315 ; foot of, 324 ; 



internal anatomy of, 327 ; domestic 



varieties of, 464 ; extinct species of, 



465 ; descent of, 466 ; the age of, 



told by teeth, 467 

 Horse-bot, 237 



II -fly, 230 



I, Leech, 94 



,1 -Shoe Bat, 502 



House-fly, 251 



Hover-flies, 282 



Humble-bees, 176 



Humus and earthworms, 93 



Husk, 68 



Hyalopterus pruni, 264 



Hyhernia defoliaria, 207 



Hydatid plague, 58 



Hydrocyanic acid gas, 618 



Hydrozoa, 34 



Hygromyia rufescens, 302 



Hylemyia coarctata, 242 



Hylobius abietis, 159 



Hymenoptera, 170 



Hymenopiera aculeata, 172 

 ri parasitica, 172 



II tuhulifera, 172 



ri petioliventres, 172 



11 sessiliventres, 172, 186 



Hypoblast, 435 



Hypoderma bovis, 234 

 M diana, 238 



M lineata, 234 



Hypotricha, 30 



Hyracoidea, 461 



Hyracotherium, the, 466 



Hystrichopsylla talpcCj 257 



Icerya purchasi, ,148 



Ichneumon flies, 183 



Ichneumonidm, 183 



Ichthyopsida, 352 



Incomplete metamorphosis, 143 



Incunaria capitella, 215 



Infusoria, 17, 29 



Insect pests, prevention and destruc- 

 tion of, 510 



Insecticides, 515 



Insectivora, 497 



Insects, 138 ; enemies of, 519 



Intestines, of horse, 330 ; of birds, 

 373 ; of pig, 470 



Irish rat, the, 492 



Isopoda, 109 



lulidffi, 112 



lulus Londinensis, 112 

 M terrestris, 112 



Ixodes ricinus, 127 



IxodidfB, 123 



Ixodinffi, 126 



Jackdaw, the, 414, 416 

 Jarring, for insects, 515 

 Jay, the, 417 

 Jelly-fish, 33 



Jointed-limbed animals, 97 

 Jungle Fowl, Red, 396 ; Sonnerat's, 

 396 ; of Ceylon, ib. ; Javan, 397 



