282 



NEW YORK STATE MUSEUM 



Ostracoda, 218^-20'. 



Oswego sandstone. S3^, 87". 



Paleontologic history of region, 



86''- 1 29'. 

 Paleontology, 130^-46". 

 Paleozoic coastal plain, development 



of, 3i'-37'- 

 Paleozoic rock system, i8''. 

 Paleozoic subdivisions, table, 20-21. 

 Paludina limosa, 241". 



obtusa, 242'. 

 Pelecypoda, 102*, I05^ 2o6*-io", 245''- 



Peneplain, 36^ 42". 

 Pentamerus, igo^-gi". 



fornicatus, 191^ 



oblongus, 190^-91°. 

 Phacops limulurus, 224\ 

 Phasganocaris? deweyi, 227^-28^ 

 Pholidops, I79\ 



squamiformis, 1791 

 Phyllocarida, 226^-28^ 

 Phylloporina, i68'^-69l 



asperato-striata, i6g'. 

 Physa, 244'-45^ 



heterostropha, 245\ 

 Physical geography of Niagara re- 

 gion, 25^-54". 

 Pilsbry, H. A., acknowledgments 



to, 238^ 

 Pisidium, 247^-d8^ 



abditum, 2471 



compressum, 247". 



scutellatum, 248". 



ultramontanum, 248^ 



virginicum, 247^. 

 Pitt, W. H., cited, 255;'. 

 Planorbis, 2451 



bicarinatus, 245*. 



parvus, 245^ 

 Plants, ii\ i30"-32". 

 Platyceras, 103^, 21 1\ 



angulatum, 2ii\ 



niagarcnse, 2ii^ 

 Platystoma, 21 1^ 



niagarensis, loi". 

 Plcctambonites, r82'-83\ 



sericea, 183". 



transversalis, 101*, 183'. 



Pleurocera, 239^ 



subulare, 239^ 

 Pleurotomaria, 212^- 13^ 



littorea, 212^ 



pervetusta, 2i3\ 

 Pohlman, Julius, cited, 257^ 30^ 77^ 



79', 83", 115"; mentioned, 18'. 

 Polydilasma turbinatum, I37^ 

 Polypora, I72\ 



incepta, 172". 

 Pomatiopsis, 242*. 



lapidaria, 74°, 242^ 

 Porter, P. A., cited, 7"; quoted, 10*. 

 Post-pliocene fossils of Niagara river 



gravels, 238-52. 

 Potsdam formation, facies, 32". 

 Potsdam sandstone, 32^ 

 Pre-Cambric rocks, 18", 3i\ 

 Pre-Cambric North American con- 

 tinent, visible remnants, 26^ 

 Preglacial Genesee river, 46^-47". 

 Preglacial Saginaw river, 46^ 

 Prospect park, gravel beds, 67", 238^ 

 Prospect point, views from, 9". 

 Pterinea, 207*. 



emacerata, 96", 105^ 207^ 

 Pterygotus, 231'. 



acuticaudatus, 231^ 



buf¥aloensis, 23I^ 



cobbi, 231^ 



cummingsi, 231". 



globicaudatus, 231^ 



macrophthalmus, 23 1^ 



Quadrula, 251^-52". 



coccinea, 252^ 



solida, 25i''-52". 

 Queen Victoria park, gravel de- 

 posits, 68^ 238'. 

 Queenston hights, I5^ 

 Quereau, E. C, cited, 257^ 



Rapids above falls, view of, I2l 

 Recession of falls, 22—23'. 

 Retepora asperatostriata, i6g^. 



diffusa, 1 69*- 70'. 

 Rhinopora, 174^-75*. 



tuberculosa, 175". 

 Rhipidomella, i88\ 



circulus, I88^-8Q^ 



hybrida, 188*. 



