384 



INDEX 



Gesner, Conrad von, 375. 



Gila monster, 259, 354. 



Gill scoop, 126. 



Gills of mussel, 106 ; of crayfish, 126 ; 

 of fish, 210. 



Glass rope sponge, 42. 



Globigerina, 30. 



Glottis, 307. 



Gnats, 186. 



Goethe, 379. 



Goose, 283 ; Canada, 284. 



Gorilla, 334. 



Grantia, 38 ; structure of, 38 ; respira- 

 tion of, 40 ; reproduction of, 44. 



Grasshoppers, 170. 



Greeks, 374. 



Grew, 376. 



Grouse, ruffed, 287. 



Growth of animals, 21. 



Gulls, 282. 



Haeckel, Ernst, 379. 



Haemoglobin of earthworm's blood, 

 81. 



Hagfishes, 206, 207. 



Hair, 302. 



Hare, American, 357. 



Harvest fly, dog-day, 177. 



Harvey, William, 377. 



Hawks, 285. 



Helix, 116. 



Hell bender, 238. 



Heller, 377. 



Hermit crab, 61. 



Herring, 219, 227. 



Hinge ligament, 103. 



Hippopotamus, 320. 



Honey dew, 190. 



Hood, 376. 



Hornbill, 294. 



Horned toad, 257, 352. 



Hornets, 191. 



Horn fly, 367. 



Horse, 8, 320 ; fossils of, 320. 



Horsefly, 186. 



House fly, 186. 



Hydra, 46, 48 ; locomotion of, 46 ; 

 structure of, 47 ; means of protec- 

 tion, 48 ; digestion, excretion, and 

 reproduction, 49 ; mode of ingestion, 

 360; mode of digestion, 361. 



Hydractinia, 61. 



Hydrogen, 7. 



Hydrozoa, 50. 



Hyla versicolor, 241. 



Humming bird, ruby-throated, 288, 



290. 

 Hunter, 377. 

 Huxley, Thomas H., 379. 



Incisors, 304. 



Ingestion, 360. 



Insectivora, 329. 



Insects, number of, 9 ; class, 1S5 ; ad- 

 aptations of, 194 ; economic impor- 

 tance of, 195 ; characteristics of, 

 197 ; classification of, 198 ; fossil, 

 345. 



Invertebrates, 200, 201. 



Janssen, Hans and Zacharias, 375. 

 Jellyfishes, 52. 



Kallima, 356. 



Kangaroo, 313 ; great gray, 313 ; rat, 



313 ; milk glands of, 313. 

 Karyokinesis, 20. 

 Katydids, 171, 355. 



Ladybird beetles, 188. 



Lamarck, 377. 



Lampreys, 205, 206 ; sea, 206 ; fresh- 

 water, 206. 



Lampshells, 72, 344. 



Lancelet, 204, 205. 



Larva, 180, 186. 



Larynx, 307. 



Leaf butterfly, 356. 



Leeches, 85. 



Leeuwenhoek, 376. 



Lemurs, 333. 



Leptocardii, 204. 



Life, 8, 9 ; processes in animals, 

 360. 



Limnsea, 115, 116. 



Lingual ribbon, 115. 



Linnaeus, 376. 



Lion, 325. 



Liver, 362. 



Lizards, 246, 254 ; six-lined, 246 ; eyes 

 of, 246 ; ears and nostrils of, 247 ; 

 mouth and teeth of, 247 ; locomo- 

 tion of, 247 ; food of, 247 ; scales of, 

 248 ; digestive system of, 248 ; blue- 



