420 
INDEX. 
A ual lan to idea, 393. 
Analogy, 218. 
Anas, 311. 
Anatomy, 12. 
Anchylosis, 144. 
Animal, defined, 22. 
Animalcule, see Protozoa. 
Annelides, 268, 17, 223. 
A nod on, 78 ; see Clam. 
Anonra, 818. 
Ant, 804. 
Ant-eater, 344, 333. 
Antennae, 177,147. 
Anthozoa, 250, 38, 95,198-208. 
Aorta, 104. 
Ape, 68, 356,120, 353-357. 
Aphis, 297. 
Apis, 304, 42, 277. 
Aplysia, 274,134. 
Apteryx, 327. 
Arachnida, 288. 
“ see Centipede, Scorpion, Spi¬ 
der. 
Araneina, 289,18, 25, 260, 261. 
“ see Spider. 
Ardea, 332, 313. 
Arenicola, 113, 77. 
Areolar Tissue, 35, 3. 
Argonaut a, 280, 249. 
Armadillo, 135, 344, 101, 334. 
Artemi a, 2S4. 
Artery, 104, 68. 
Arthropoda, 281. 
“ blood of, 99. 
4 ‘ development of, 205. 
“ number of, 221. 
“ skin of, 127. 
“ see Crab, Insect, Lobster, My- 
riapoda, Spider. 
Ascidian, 309, 278, 279. 
“ circulation of, 107. 
“ mouth of, 60. 
“ skin of, 128. 
Astacus, 2S7, 250. 
Asterias, 260. 
“ see Starfish. 
Asteroidea, 258,126,133, 210, 212, 213. 
Astrsea, 252, 203. 
Astrophyton, 260. 
Atavism, 216. 
Atlas, 145. 
Attacus, 308, 274. 
Auger-shell, 276, 238. 
Auk, 329. 
Aurelia, 249, 195. 
“ see Jelly-fish. 
Aves, 325, 50, 65, 76, 105, 116, 125, 162, 
169, 170. 
Avicula, 272. 
Axis, 145. 
Axolotl, 232. 
Babiuusa, 69, 34. 
Baboon, 359. 
Balaena, see Whale. 
Balanoglossus, 233, 393. 
Balanus, 284, 254. 
Barnacle, 284, 253, 254. 
“ metamorphosis of, 210. 
“ mouth of, 57. 
“ see Cirripedia. 
Basket-fish, 260. 
Batrachia, 31S, 63-65, 76, 85, 87, 296, 297. 
“ see Frog. 
Bats, 346, 182, 339, 340. 
Bear, foot of, 128. 
Beaver, 346, 337. 
Bed-bug, 297. 
Bee, 304, 277. 
“ alimentary canal of, 42. 
“ eggs of, 195. 
“ eye of, 155. 
“ instincts of, 185. 
“ mode of feeding of, 50. 
“ mouth of, 59, 22. 
“ section of, 81. 
“ temperature of, 121. 
“ see Hymenoptera, Insecta. 
Beetle, 297,131, 267, 268. 
“ alimentary canal of, 41. 
“ development of, 297, 267, 268. 
“ eye of, 182,156. 
“ mouth of, 57. 
“ skeleton of, 292, 262. 
“ see Coleoptera, Insecta. 
Belemnite, 281. 
Bernicia, 310. 
Beroe, 257. 
Bile, 93. 
Biology, 11. 
Bird-of-Paradise, 339. 
Birds, 325, 304-328. 
“ alimentary canal of, 84, 50. 
“ anatomy of, 50, 304. 
“ beak of, 54. 
“ blood corpuscles of, 100, 65. 
“ brain of, 141. 
“ breathing of, 119. 
“ circulation of, 109, 76. 
“ distribution of, 378. 
“ drinking of, 50. 
“ egg of, 193,162. 
“ embryo of, 169,170. 
“ eye of, 184. 
“ feather of, 137, 204,105. 
“ flight of, 160, 125. 
‘ ‘ gizzard of, 84,3S4, 50. 
“ heart of, 109. 
“ locomotion of, 166. 
“ lungs of, 118, 50, 82. 
“ mouth of, 62. 
“ skeleton of, 144-14*7,116. 
“ smell of, 178. 
