254 



ANIMAL FORMS 



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. 



Grua americana (illus.), 212. 



Gull, 211. 



Habitat (habitare, to dwell), 45. 



Hagfish, 157. 



Halicetus leucocephalus (illus.), 

 220. 



Haliclystus (illus.), 39. 



Harvestman, 135. 



Hawks, 219. 



Helix (illus.), 81. 



Heloderma suspeclum (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.), 139. 



Humming-bird (illus.), 222. 



Hydra, structure of, 29 ; multipli- 

 cation of, 31 ; regeneration of, 

 51. 



Hydractinia (illns.), 36, 103. 



Hydranth, 33. 



Hydrozoa, 34 ; regeneration of, 51. 

 Hymenoptera (illus.), 128. 

 Hystrix cristata (illus.), 233. 



Incubation (incumbo, to rest upon), 



207. 



Infusoria, 17. 

 Insectivora, 234. 

 Insects, numbers, 114; anatomy, 



115 ; respiration, 117. 

 Isopod (illus.), 101. 



Jelly-fish, of Hydrozoa, 33 ; of Scy. 



phozoa, 37. 

 Julus (illus.), 112. 



Kangaroo, 232. 

 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. 243. 

 Lepas (illus.), 99. 

 Lepidoptera (illus.), 125. 

 Lepomis megalotis (illus.), 167. 

 Leptoplana (illus.), 45. 

 Lice, 122. 

 Life histories and race histories, 



27. 



Limicolae, 216. 

 Limulus polypJiemus (illus.), 139. 



