346 



INDEX. 



Haeokel, 12, 137, 140. 



Hsematobrancliia, 196. 



Hair, 280. 



Hag-flshes, 251. 



Hare, 299. 



Harvest-bug, 194. 



Head, 86. 



Heart, 45. 



Heart-urchins, 176. 



Hedgehog, 297. 



Heliozoa, 136. 



Hemiohordata, 118, 238. 



Hemiptera, 203. 



Hen's egg, 75. 



Herbivorous dentition, 288, 



289. 

 Herbivorous dentition of 



marsupials, 289. 

 Heredity, 61, 114. 

 Hermit-crab, 191. 

 Heteromya, 217. 

 Heteropoda, 225. 

 Hexacoralla, 156. 

 Hexapoda, 186, 196, 198. 

 Hind-gut, 36. 

 Hinge- teeth of bivalve shells, 



219. 

 Hirudinea, 178, 184. 

 Histology, XV, 48. 

 Holoblastic eggs, 75. 

 Holostomatous shells, 221, 



222. 

 Holothuroidea, 168, 170, 171, 



177. 

 Homologue, xv. 

 Homothermous, 99. 

 Honey-dew, 204. 

 Horse, 288. 

 House-cricket, 202. 

 House-fly, 204. 

 Humble-bee, 209. 

 Huxley, 59,247. 



Hydra, see, index of generic 



names. 

 Hydroid polyps, 159. 

 Hydrosoma, 164. 

 Hydromediisse, 160. 

 Hydrozoa, 142. 

 Hymenoptera, 207. 

 Hyoid bone, 243, 245, 249. 

 Hypoblast, xv, 30, 36, 39, 40, 



46, 72, 112, 113. 



Ichneumon-wasps, 207. 

 Ichthyopsida, 247. 

 Ilium, 243. 

 Imago, 74. 

 Incisors, 286, 288. 

 Individual, xv. 

 Infusoria, 80, 117, 128, 134, 136. 

 Insecta ametabola, 198. 

 Insects, 198. 

 Insectivora, 283, 296. 

 Insectivorous dentition, 295. 

 Insectivorous dentition of 



marsupials, 297. 

 Insessores, 276. 

 Instinct, 107. 

 Integro-pallialia or Integrl- 



pallia, 215. 

 Intestine, 36. 

 Invagination, 71, 72. 

 Ischium, 243. 

 Isomya, 217. 

 Isopods, 190. 



K angaroo, 289. 

 Karyokinesis, xvi, 21. 

 Keratin, 80. 

 Kidneys, 47. 

 King-crab, 195. 

 Kiwi, 274. 



Liacteals, 46. 

 Lady-birds, 206. 

 Lamai'ck, 49. 



