456 



ANIMAL STUDIES 



Paludicolae, 222. 



Pandorina (illus.), 33. 



Panthers (illus.), 259. 



Papilionidae, 3(37. 



Parallelism of embryonic stages with 



fossil series, 433. 



Paramvecium aurelia (illus.), 26, 27. 

 Parasitic insects, 341. 

 Parasitism, 63, 335 ; kinds of, 338 ; 



simple structure of, 340. 

 Parrots, 227. 

 Passeres, 230. 

 Patagonian realm, 444. 

 Pelicans, 220. 

 Peneus (illus.), 346. 

 Pennatula, 56. 

 Percajiavescens (illus.), 165. 

 Perching birds, 230. 

 Pelican us erytJirorhynchu* (ilius.), 



220. 



Peripatus (illus.), 127. 

 Peripatus elseni (illus.), 127. 

 Petrels, 219. 

 Pheasants, 224. 

 Philhela minor, 223. 

 Phrynosoma, 200; P. blanivillei, 



(illus.), 297; head of (illus.), 208. 

 Phyllium (illus.), 357. 

 Phyllopteryx (illus.), 359. 

 Physalia, colonial jelly-fish (illus.), 



51, 336. 

 Pici, 228. 



Piddock (illus.), 93. 

 Pieridee, 367. 



Pigeons, 225; horn- tail (illus.), 344. 

 Pike, 173. 

 Pill-bugs, 121. 

 Pinnotheres, 337. 

 Pipe-fish (illus.), 359. 

 Pithecantftropus, 430. 

 Planaria (illus.), 60, 61. 

 Plankton, 446. 



Platophrys lunatus (illus.), 274. 

 Play, 394. 

 Plovers, 223. 



Podilymbus podiceps, 219. 

 Pointer dog in the act of pointing 



(illus.), 403. 

 Polychaetes. 76, 80. 



Polynce brevisetosa (illus.), 7R 



Polyzoa, 85. 



Porcellio latvis (illus.), 121. 



Porcupine (illus.), 241. 



Porcupine fish (illus.), 300. 



Porpoises, 242. 



Portuguese man-of-war (illus., 51), 



50; (illus.), 337. 

 Prawn (illus.), 117. 

 Praying horse (illus.), 293. 

 Pribilof group in Bering Sea (ill us.), 



330. 



Primates, 250. 

 Prionns (illus.), 311. 

 Procellaria pelagica, 220. 

 Procyon lotor, 247. 

 Promethea moth (illus.), 378. 

 Protective resemblances, 350, 355, 



368. 



ProtoJiippits, 432. 

 Protoplasm, structure of, 10, 

 Protozoa, 19, 22, 30. 

 Psittaci, 227. 



Pterichyodes millcri (illus. ) r 425. 

 Pterodactyl (illus.), 424. 

 Pugettia richii (illus.), 120. 

 Pulsatina vacuales, 27. 

 Puss moth, larva of (illus.), 363. 

 Pygopodes, 217. 



Quail, 224. 



Rabbits, 241, 435. 



Raccoon (illus.), 247. 



Race histories, 41. 



Rails, 222. 



Rainbow trout, head of (illus.), 310. 



Raja Unoculala (illus.), 305. 



Raptores, 226. 



Ratitse, 217. 



Rats, 438. 



Reason, 398. 



Red squirrel, 19. 



Redi, 70. 



Reflex action, 388. 



Regeneration of the tapeworm, 66. 



Remora (illus.), 336. 



Reproduction, 396. 



Reptiles, 192. 



