Index. 



Peristaltic action, 94. 



Peritoneum of rabbit, 251. 



Petrels, 226. 



Pewee, 239, 240. 



Pharynx of earthworm, 89, 92. 



Pheasants, 232. 



Phyllopoda, 83. 



Phylloxera, 24. 



Physa, 134. 



Pickerel, 166, 167. 



Pigeon, 208. 



Origin of, 218. 

 Pigment in fishes, 164. 

 Pike, 166, 167. 



Perch, 171. 

 Pinchers of crayfish, 73. 



Of sea urchin, 340. 



Of starfish, 332. 

 Pin feathers, 209. 

 Pinnigrade animals, 282. 

 Pinworm, 351. 

 Pisces, 168. 



Placental mammals, 259. 

 Plaice, 176. 

 Planorbis, 127, 134. 

 Plant lice, 23. 

 Plantigrade animals, 280. 

 Plastron, 205. 

 Plates, epidermal, of turtle, 205. 



Genital, of sea urchin, 341. 

 Platyhelminthes, 348. 

 Plovers, 230. 

 Plumes of egret, 229. 



Of ostrich, 222. 



Poison gland of honey bee, 46. 

 Poisonous snakes, 203. 

 Polishing powders, 299. 

 Pollen baskets, 46. 

 Polyp, coral, 325, 328. 



Fresh-water, 313. 

 Polyphemus, 30. 

 Polyzoa, 354. 

 Pond snails, 129, 133. 

 Porcupine, 261. 

 Porifera, 307. 

 Pork worm, 352. 

 Porpoise, 266. 

 Portal vein of perch, 159. 

 Portuguese man-of-war, 322, 323. 

 Potato beetle, 39. 



Prairie dog, 263. 



Hen, 231. 



Wolf, 279. 

 Prawns, 77. 

 Prey, birds of, 233. 

 Primaries, 210, 211. 

 Primates, 282. 

 Proboscis of elephant, 277 



Of snail, 133. 

 Proglottids, 349. 

 Pronghorn, 273. 

 Propagation of fishes, 166. 

 Propolis, 47. 

 Proteid, 301. 



Prothorax of grasshopper, 2. 

 Protoplasm, 286, 300, 301. 

 Prototheria, 256. 

 Protozoa, 286, 296, 300. 



Colonial, 305. 



Distribution of, 300. 



Shell-bearing, 298. 

 Proventriculus of pigeon, 215, 

 Psalterium of cow, 270. 

 Pseudopod, 286, 287. 

 Ptarmigan, 231. 

 Puffins, 225. 

 Puma, 279. 

 Puparium, 33, 34. 

 Purple finch, 239. 



Quahog, 121. 



Quail, 231. 



Queen, honey bee, 46. 



Cells, 48. 

 Quills, 209. 



Of porcupine, 261. 



Rabbit, 246. 



In Australia, 253. 



Development of, 254. 



Nervous system of, 254. 



Structure of, 249. 

 Raccoon, 281. 

 Rails, 230. 

 Raptores, 233, 235. 

 Ratitae, 222. 

 Rats, 262. 



Rattlesnake, 203, 204. 

 Rays, 168, 169. 



Of starfish, 331, 



