458 



INDEX. 



Newport, i. 247; ii. 78, 155, 157, 



177, 385. 

 Newt, ii. 311, 412. 



Nightshade, ii. 48. 

 Nitrogen, ii. 18, 240. 

 Nordmann, ii. 420, 426. 

 Notonecta, i. 35, 238. 

 Nursling sap, ii. 25. 

 Nutrition, ii. 9, 15, 17, 47. 

 Nutrition in lower orders, ii. 58. 

 Nutrition in higher orders, ii. 80. 

 Nutritive functions, i. 42. 

 Nycteribia, ii. 341. 



Octopus, i. 188; ii. 348. 



Ocular spectra, ii. 361. 



Odier, i. 226. 



(Esophagus, ii. 76, 82, 129. 



Oken, i. 246, 279. 



Olfactory nerve, ii. 281. 



Olfactory lobes, ii. 391. 



Oliva3, i. 175, 180. 



Oniscus, ii. 382. 



Onocrotalus, i. 384. 



Operculum of Mollusca, i. 182. 



Operculurn of fishes, ii. 217. 



Ophicephalus, ii. 219. 



Ophidia, i. 310. 



Ophiosaurus, i. 315, 317. 



Ophiura, i. 155. 



Opossum, ii. 101, 419. 



Optic axis, ii. 354. 



Optic ganglion, ii. 345. 



Optic lobes, ii. 391. 



Opuntia, i. 100. 



Orache, ii. 40. 



Orbicular bone, ii. 303. 



Orbicular muscle, i. 105. 



Orchideffi, i. 62. 



Organic Mechanism, i. 58, 79. 



Organic development, ii. 420. 



Ornithorhyncus, i. 276 ; ii. 101, 130, 



277, 313, 350. 

 Orobanche, ii. 45. 

 Orthoceratite, i. 192. 

 Orthoptera, i. 220, 245. 

 Os hyoides, ii. 99, 216. 

 Osier, i. 152, 162, 163, 199, 201. 

 Osseous fabric, i. 256. 

 Ossicula, tympanic, ii. 302. 

 Ossification, i. 263, 383. 

 Ostracion, i. 300. 

 Ostrich, i. 388, 404,407; ii. 135 



162, 234, 390. 

 Otter, sea, ii. 110. 



Ovary, ii. 416, 417. 



Oviduct, ii. 418. 



Oviparous animals, ii. 419. 



Ovo-viviparous animals, ii. 419. 



Ovula, i. 179. 



Ovum, ii. 416. 



Owen, i. 388. 



Owl, ii. 235, 312, 354. 



Ox, horn of, i. 355. 



Oxygen, ii. 28. 



Oyster, i. 102, 161, 162. 



Oyster-catcher, ii. 98. 



Paces of quadrupeds, i. 339. 



Pachydermata, i. 357; ii. 271, 278. 



Package of organs, i. 83. 



Pain, ii. 262. 



Palemon, ii. 383. 



Paley, i. 83, 394; ii. 205. 



Palinurus, ii. 383. 



Pallas, i. 115 ;ii. 244. 



Palrns, i. 72. 



Palm squirrel, ii. 130. 



Palmer, ii. 28. 



Palpi, i. 206; ii. 93. 



Pancreas, ii. 160. 



Pander, ii. 425. 



Panniculus carnosus, i. 363, 



Panorpa, i. 231. 



Paper nautilus, i. 191. 



Papilio, i. 251; ii. 343. 



Papilla, ii. 269, 279. 



Par vagum, ii. 386. 



Parakeet, ii. 98. 



Parallax, aberration of, ii. 333. 



Parrot, ii. 130, 277. 



Pastern, i. 356. 



Patella, i. 167; ii. 167, 388. 



Patella of knee, i. 282. 



Patellaria, ii. 39. 



Paunch, ii. 142. 



Pearl, i. 169. 



Peccari, ii. 140. 



Pediculus, i. 212. 



Pelican, i. 383 ; ii. 130. 



Pelvis, i. 281. 



Pencil of rays, ii. 320. 



Penguin, i. 407. 



Penitentiary, ii. 138. 



Pennatula, i. 131 ; ii. 63. 



Penniform muscle, i. 103. 



Pentacrinus, i. 156. 



Perca, i. 93, 301 ; ii. 219, 291, 349, 



392 

 Perception, i. 40; ii. 264, 358. 



