428 



Index. 



PAGE. 



Pica caudata 7 



Ekdsonwa 7 



Picicorvus Columbianus 7 



Picid.4: 9, 144 



Picorellus 324 



affinis 324 



reticulatus '-V24 



Picus Gairdneri 9 



Harrisii 9 



pubescens 9, 144 



viMosus 9, 144 



PlEKliWE 95. 108 



Pileoma 311, 312 



caprodes 312 



semifasciaium 312 



zebra 312 



Pimelodus 350, 351, 307 



Antoniensis 351 



drgyrus 351 



caudafurcatus 351 



cerulescens 350 



cupreus 351 



felinus 351 



furcifer 351 



Hammondi 351 



maculatus 350 



olivaceus 351 



pallidus _ 350 



puma 367 



vulpeculus 307 



Pineria 40 



Pipilo Aberti 



chlororus 



erytkropthalmus 141 



maculatus 



megalonyx 



Pitangus caudifasciatus 289 



^Gabbii." 288 



Taylori 289 



Pittsburg Coal, 47, 48, 54. 55, 50, 57 



Pittsburg Sandstone 50 



Plagioptycha no 



Plargyrus 335, 340, 341, 344 



Americanus 344 



Bowmani 341 



chrysoleucas 344 



cornutus 340 



frontalis 341 



gibbosus 341 



gracilis 341 



typicus 341 



"Plate'ado" 01. 62 



Platyceras 17, 110 



Gebhardii 290. 297 



retrorsum 295, 296 



symmeiricum 110 



PAGE. 



Platyostoma ventricosum 297 



Pleetostylus 35 



Pleosporopsis strobilorum 409 



Plesioperca 309 



anceps 310 



Pleurolepis pellucidus 375 



Pleurotomaria 114. 115, 116 



carbonaria 18 



Qrayv'dliensis 17, 18 



perhumerosa 17 



Rochana 114 



turbinella 17 



Plusia 98, 99 



alttcola 99 



mupht 98 



concha 99 



formosa 98 



' Hochertwmihi 99 



ignea 99 



illustris 99 



laticlavia 98 



parilis 9!) 



precationis 98 



purpurigena 98 



Poecilia catenata 3)23 



Pcecilichtbys spectabilis 375 



variatus '■'>!') 



Podiceps cornutus 14 



occidentalis 14 



I'dDK 'IPID.E 14 



Pbdilymbus podiceps 14 



I'cilia confragosa 306 



medialis 306 



Polioptila ctvrulm 132 



Pollution of drinking water, 283, 284 

 285, 286, 287 



Polyangium vitellinum 387 



Polygyra 28, 176, 177 



Polymita 20, 147 



Polyodon/oZiww 377 



PoLYomtN'l ID.K 377 



Polyphemopsis peracida 17 



Pomacampsis 313 



Poniotis, 



310, 317, 318, 355, 358, 359, 361 



appendix 310, 361 



auritus 310, 301 



fallajx. 318 



gulosus 359 



incisor 310. 355 



inseriptus 318 



obscurus 317, 355 



rubricauda 301 



sanguinolentus 31 8 



vulgaris 358 



Pomoxys 358, 376 



