480 



INDEX 



Ophiuroidea, 121, 122. 



Opossum, 389. 



Order, defined, 72. 



Oreamnos montanus, 397. 



Organ, defined, 14. 



Orthoptera, 192 ; sound-making of, 



193- 



Orb- web of Epeiridae, 236. 

 Ostrea virginiana, 248. 

 Ostriches, 341, *342. 

 Otocoris alpestris, *358. 

 Ch'is canadensis, *Z&Z, 39^- 

 Owl, burrowing, 353; great gray, 



353 ; great homed, 353 ; snowy, 



353- 



Oyster, 248. 

 Oyster-crab, 154. 

 Oyster-drills, 255. 

 Oysters, 246; "seed" of, 249; 



" spat " of, 249. 



Pagunts saninelis, *I53- 



Paludicolae, 348- 



Panther, 398. 



Paramcedum , '"'35; multiplication of, 

 60; structure and life of, 34. 



Parasitism, 415. 



Paroquet, Carolina, 353. 



Parrots. 353. 



Passer domestictts, dissection of, (fac- 

 ing) ^327 ; life-history and habits 

 f 335: structure of, 327. 



Passeres, 357. 



Pearl-oyster, *249. 



Pelecanus californicus, 346. 



J^elecanus ervthrorJiynchns, 346. 



Pelecanus fuscHS i 346. 



Pelecypoda, 246. 



Pelican, brown, 346; white, 346. 



Pentacrimis sp., *I26. 



Peutacta frondosa. *I25. 



Peri pat us eiseni, *226. 



Perla sp., *i82. 



Petrels, 345. 



Petroniyzon inarinus , *278. 



/ halacro corax, 346. 



Pheasants, 350. 



Phoca vitulina, 397. 



Phoebe, black, nest and eggs of, 

 *340. 



Pholas sp., ^250. 



PJnynosotna, 318. 



Phylloxera, grape, 198, 201. 



Phvlloxera vastatrix, 198, 201. 



Phylum, defined, 73. 



Physalia sp., *97. 



Physetcr macrocephalus, 393. 



Physiology, defined, 3. 



Pici, 354. 



Pickerel-frog, 300. 



Pigeon, band-tailed, 351; passenger, 



351- 



Pinnotheres, 154. 



Pipe-fish, 285. 



Pisces, 263. 



Pituophis bellona. *323. 



Planar ia sp., *I38. 



Planarian, fresh-water, *I38 ; ma- 

 rine, *I38. 



Planarians, 137. 



Plant-lice. 197, 200. 



Planula, 96. 



Platyhelminthes, 137. 



Plectrophenax nil* a Us, *358. 



Plethodon, 297. 



Plover, field, 349. 



Pluteus, 119. 



Podilymbus podiceps, 343. 



Poison-fangs of rattlesnake, *324. 



Pollicipes poly menus, * 1 5 3 . 



Polymorphism, 96. 



Polynce brevisetosa, *I34- 



Polyps, 92, 97. 



Pomoxis annularis, 282. 



Potnoxis separoides, 282. 



Pond-snails, 252. 



Porcupine, 390. 



Porcupine-fish, 285. 



Porifera, 84. 



Porpoises, 393. 



Porzana Carolina, 349. 



Prairie-chicken. 350. 



Prawns, 152. 



Preparations, preserving anatomical, 



45 2 - 



Primates, 398. 



Pristis pectinatis, 281. 



Protophyta, 82. 



Protoplasm, described, 39. 



Protopterus, 288. 



Protozoa, defined, 43, 75; form of, 



78; marine, 80. 

 Pseudemys, 313. 



Pseudogryphus californianns, 352. 

 Psittaci, 353. 

 Ptarmigan, 356. 

 Puff-adder, 325. 

 Puffins, 345. 

 JUlex irritans, *2C4 

 Pulmonata, 25^, 



