INDEX. 
427 
Leech, alimentary canal of, 77. 
“ jaws of, 64. 
“ locomotion of, 161. 
“ mode of feeding of, 50. 
Lemur, 355, 351. 
Lepas, 2S4, 253. 
Lepidoptera, 300, 40, 43, 172. 
“ see Butterfly. 
Lepidosiren, 317. 
Lepidosteus, 315, 289. 
Libellula, 295, 2G3. 
Life, distribution of, 372. 
“ duration of, 226. 
“ nature of, 28. 
“ struggle for, 226. 
Lightning-bug, 299. 
Ligula, 58, 21. 
Likeness, 215. 
Limas, 275, 232. 
Limbs, development of, 204. 
“ skeleton of, 146, 179-182. 
Limmea, 275, 232. 
Limpet, 27S, 245. 
Linmlus, 2S4. 
“ see Horseshoe-crab. 
Lion, 68, 355. 
“ foot of, 128. 
“ skeleton of, 106. 
/“ stomach ol‘, 88, 55. 
Liver, 123, 92. 
Lizard, 141. 
“ see Lacertilia. 
Lobster, H>6, 70, 256. 
“ alimentary canal of, 78. 
“ anatomy of, 2S2. 
“ circulation in, 106, 70. 
“ ear of, 179. 
“ eggs of, 196. 
“ gills of, 114. 
“ gizzard of, 64. 
“ locomotion of, 158. 
“ moulting of, 132. 
“ mouth of, 57. 
“ prehension of, 53, 57. 
“ respiration in, 114. 
“ skeleton of, 131. 
Lob-worm, 77. 
Locomotion of Arthropods, 162. 
“ of Birds, 160. 
“ of Fishes, 158. 
“ of Insects, 159. 
“ of Mollusks, 161. 
“ of Starfish, 161. 
“ of Vertebrates, 163. 
“ of Worms, 161. 
Locust, 297. 
Loligo, sec Squid. 
Longipeunes, 329, 308. 
Loon, 329, 307. 
Louse, 50, 297. 
Lucernaria, 197. 
Lumbricus, see Earth-worm. 
Lungs, function of, 125. 
“ of Snail, 116. 
“ of Vertebrates, 117. 
Lupus, 347. 
Lymph, 102. 
Lymphatics, 94, 61. 
Lymph-heart, 96. 
Maotra, 271, 46, 226. 
Madrepore, 252, 201, 206. 
Madreporic plate, 258, 39. 
Maggots, 3S9. 
Mammalia, 340. 
“ alimentary canal of, S5. 
“ anatomy of, 86, 52. 
“ blood-corpuscles of, 100, 65. 
“ brain of, 171,138, 142-145. 
“ circulation in, 109, 76, 281. 
“ digestion of, 92, 51. 
“ drinking of, 50. 
“ ear of, 179,152. 
“ egg of, 198, 165. 
“ embryo of, 202, 171 . 
“ eye of, 183,157. 
“ hair of, 136,104. 
“ heart of, 109, 73, 74. 
“ locomotion of, 163. 
“ lungs of, 11S, 86. 
“ mouth of, 62. 
“ palate of, S6, 27, 51. 
“ placenta of, 196, 203, 171 . 
“ respiration in, 119. 
“ skeleton of, 139. 
“ smell of, 178, 149. 
“ teeth of, 68. 
“ touch of, 177. 
“ voice of, 189,159. 
Man, 359,179, 329, 330. 
“ blood-corpuscles of, 99, 62, 65. 
“ brain of, 170,171, 137, 144, 145. 
u digestive tract of, 51. 
“ ear of, 179,152. 
“ eye of, 198,157,158. 
“ mouth of, 86, 27. 
“ muscles of leg of, 165,130. 
“ nose of, 178,149. 
Manatee, 350, 343. 
Mandibles, 58,145, 21. 
Mantis, 53. 
Mantle, 127, 46. 
Manyplies, S9, 56. 
Marsh-hen, 314. 
Marsipobranchii, 314, 286. 
Marsupialia, 342, 332. 
Mastodon, 350. 
May-fly, 295. 
Maxillae, 58, 21. 
Meandrina, 252. 
Medulla oblongata, 172,174,137-142,144. 
Medusa, see Jelly-fish. 
