527 



Pelecanus trachyrhynchus, 68, 348, 365. 

 Pelidna americana, 446. 

 Peliclnetta perspicillata, 448. 

 Pensternon albidus, 79. 

 caeruleus, 79. 

 cristatus, 80. 

 gracilis, 79. 

 Perigrapha, 150. 



innexa, 214. 

 semiaperta, 150. 

 Periplaneta americana, 280. 

 Perisoreus canadensis, 344, 442. 



capitalis, 344. 

 Perisphinctes anceps, 368. 

 Perissoglossa tigrina, 439. 

 Perognathus flavus, 42. 

 Peroneceras acanthopsis, 31. 



subarmatum, 31. 

 Peru, Hemiptera of, 282. 

 Keuroptera of, 286. 

 Orthoptera o±>257. 

 Petalostemon candidum, 73. 

 violaceuni, 73. 

 Petrochelidon lunifrons, 53, 339, 440. 

 Peucedanum nudicaule, 76. 

 Pezotettix acutipennis, 472. 



oliracea, 472. 

 Phseoparia curtipennis, 214:. 

 Phalaropus fulicarius, 445. 



hyperboreus, 445. 

 Wilsoni, 445. 

 Phasina r ad latum, 279. 

 Phelipaea Ludoviciana, 79. 

 Philobela minor, 445. 

 Phlibostroma, 516. 



pictum, 517. 

 Phlox Douglassii, 80. 

 Phoebis Agarithe, 207. 

 Pbrynosoma JJouglassii, 69. 

 Phycioides Tharos, 88. 

 Phylloceras Loscombi, 368. 

 Phyllopteia tripunctata, 261. 

 Physalis pubescens, 81. 

 Physaria didymocarpa, 72. 

 Pica caudata, 61. 



hudsonica, 61, 341, 350, 354. 

 melanoleuca, 341, 350, 354. 

 Picoides americanus, 443. 



arcticus, 443. 

 Picus albolarvatus, 362. 

 Gaerdnerii, 63, 362. 

 Harrisii, 63, 362. 

 Nuttallii, 362. 

 pubescens, 63. 362, 443. 

 scalaris, 362. 

 villosus, 63, 362, 443. 

 Pinicola enucleator, 344, 441. 

 Pinus Engelmanni, 84. 

 Pipilo arcticus, 59. 



chloruras, 340, 350, 354, 359. 

 crissalis, 359. 

 erythropthalmus, 442. 

 fuscus, 359. 

 macnlatns, 59, 359. 

 oregonus, 359. 

 Pityophis bellona, 69. 

 Plantago pataaonica, 79. 



pusilla, 79. 

 Platydactylus bicolor, 259. 

 Platypleuroceras brevispina, 30. 



Platysenta atriciliata, 211. 

 Plectrophanes laponicus, 441. 

 Maccowni, 56. 

 nivalis, 441. 

 ornatus, 55. 

 Pleonectopoda^Hziriaris, 134. 

 Pleurosigma, 182. 

 Plusia ou, 212, 219. 

 Poa seratina, 85. 



tenuifoiia, 85. 

 Podiceps auritus 68. 



californicus, 68. 

 cornutus, 450. 

 cristatus, 454. 

 griseigena, 450. 

 Podilymbus podiceps, 450. 

 Polanisia uniglandulosa, 72. 

 Polia confragosa, 138. 

 perqiuritata, 136. 

 speclosa, 137. 

 Polioptila coerulea, 451. 

 Polygala alba, 73. 

 Polygonatum giganteum, 84. 

 Polygonum amphibium, 82. 



ramosissimus, 82. 

 Pocecetes conlmis, 346, 349. 



gramineus, 57, 340, 346, 349 

 441. 

 Populus monolifera, 83 ~ 

 Porphyrio martinica, 447. 

 Porzana Carolina, 352, 447. 

 Potentilla anserina, 74. 

 arguta, 74. 

 rruticosa, 74. 

 gracilis, 74. 

 pennsylvanica, 74. 

 Proarna grisea, 285. 

 Procyon lotor, 38. 

 Prodenia cominelinae, 211. 

 Progne subis, 54, 440. 

 Prorhachis, 269. 



granulosa, 269. 

 Prothymia coccineifascia, 154. 



rosaba, 154. 

 Protonotaria citrea, 439. 

 Prunus pumila, 74. 



Virginian a, 74. 

 Psaltriparus minimus, 356. 

 Pseudanthracia coracias, 213. 

 Pseudomorphism of rocks, 167. 

 Psoloessa, 512. 



fenmginea, 513. 

 macil/ipennis, 513. 

 texana, 512. 

 Psoralea argophylla, 73. 

 esculenta, 73. 

 floribunda, 73. 

 lanceolata, 73. 

 Pteroplatea, 170. 

 Pteroscia, 155. 



atrata, 156. 

 Pthia lunata, 284. 

 Pyranga aestiva, 441. 



ludoviciana, 353, 357. 

 rubra, 441. 

 Pyrgita domestica, 441. 

 Pyrophila glabella, 153. 

 Pufiiuus anglorum, 453. 

 f uliginosus, 450. 

 major, 450. 



