254 ANIMAL 
Glires, 232. 
Gnat, 122. 
Gonionemus vertens (illus.), 34. 
Goose barnacle (illus.), 96. 
Gordius, 54, 
Gorilla (illus.), 245. 
Grasshopper (illus.), 117. 
Grebe, 209. 
Green gland, 108. 
Grouse, 218. 
Grus americana (illus.), 212. 
Gull, 211. 
Habitat (habitare, to dwell), 45. 
Hagfish, 157. 
Halietus leucocephalus  (illus.), 
220. 
Haliclystus (illus.), 39. 
Harvestman, 135. 
Hawks, 219. 
Helix (illus.), 81. 
Heloderma suspectum (illus.), 192. 
Hemiptera, 121. 
Heptacarpus brevirostris (illus.), 
101. 
Hermit-crab (illus.), 102. 
Herodines, 215. 
Herons, 215. 
Herring, 163. 
Homo sapiens, 245. 
Honey-bee, 130. 
Hoofed animals, 237. 
Horned toads, 192. 
Hornet, 132. 
Horse-fly (illus.), 119. 
Horsehair-snake, 54. 
Horseshoe-crab (illus.), 189. 
Humming-bird (illus.), 222. 
Hydra, structure of, 29; multipli- 
cation of, 31; regeneration of, 
51. 
Hydractinia (illns.), 36, 108, 
FORMS 
Hydranth, 33. ; 
Hydrozoa, 34; regeneration of, 51. 
Hymenoptera (illus.), 128, 
Hystriz cristata (illus.), 233. 
Incubation (¢ncumbo, to rest upon), 
207. 
Infusoria, 17. 
Insectivora, 284. 
Insects, numbers, 114; anatomy, 
115; respiration, 117. 
Isopod (illus.), 101. 
Jelly-fish, of Hydrozoa, 33; of Scy- 
phozoa, 37. 
Julus (illus.), 112. 
Kangaroo, 282, 
Katydid, 117. 
Keyhole-limpet, 82. 
King-crab (illus.), 139, 
Kingfisher, 221. 
Lacertilia, 185, 
Lamellibranch (illus.), 72. 
Lamellirostres, 213. 
Lamprey (illus.), 157. 
Lamp-shell (illus.), ‘70. 
Lancelet (illus.), 157, 
Lasso-cell, 30. 
Leeches (illus.), 63; haunts and 
habits, 64. 
Lemur, 248. 
Lepas (illus.), 99. 
Lepidoptera (illus.), 125. 
Lepomis megalotis (illus.), 167. 
Leptoplana (illus.), 45. 
Lice, 122. 
Life histories and race histories, 
2%. 
Limicole, 216. 
Limulus polyphemus (illus.), 189. 
