148 J. STANLEY-BROWN — INDEX TO VOLUMES 1 TO 10 



Page 



PiERCK, Llewellyn, Relics found by 2, 191 



Pierce, S. J., Acknowledgments to 8, 7, 8, 9 



Pierre shales of Colorado 6, 333 



Pike, L. M., Explorations by 3, 333 



Pikes Peak granites 6,471 



Pilot Knob, Ores of 2, 221 



Pinna cuneiformis, Naming of species 3, 404 



— expansa. Naming of species 3, 402 



Pinnacle island, Geological sketch of 5, 135 



Pinto limestone. Description of 3, 222 



PiKSSON, L. v.. Acknowledgments to 5, 627 



— Analysis of granite by 10, 375 



pyroxene bj' 6, 410 



— ; A needed term in petrography 7, 492 



— cited on ground masses of basic rocks 8, 180 



leucite 8, 171 



i\Iaine volcanics ■ 6, 474 



Rhode Island granites 10, 364 



rock diflferentiation in Montana 9, 253 



— , Election of 6, 2, 425 



— , Titles of papers by 6, 444 ; 10, 501 



— and W. H. Weed cited on Belt rocks of Castle mountain 10, 203 



; High wood mountains of Montana 6, 389 



Pissis, M. A., cited on rock decay 7, 257, 260 



Pitcher, G., cited on Cretaceous fossils 2, 516 



Red River fossils 5, 307 



Pitcairn, Pleistocene shorelines near 3, 489 



PiwoNKA, Thomas, Acknowledgments to 7, 336, 337 



Plains, Glacial sand 1, 195 



— of marine and subaerial denudation ; W. M. Davis 7, 377 



— , Geology of the 3, 519 



Planation, Agencies of 10, 76 



— and dissection of the Ural mountains 10, 69 



Planolites, Nicholson, Description of. 10, 236 



— corrugaius, Description of. 10, 236 



— superbns, Description of 10, 237 



Plastic clays near Coushohocken, Pennsylvania 10, 480 



Platt, Franklin, cited on coal 5, 67 



Playfair, John, Reference to writings of 7, 9, 11, 463 



Pleistocene age of Massachusetts Champlain fossils 7,4 



Middleton Island material 4, 431 



New Jersey formations .6, 488 



— and present ice-sheets. Comparison of; Warren Upham 4, 191 



— Antillean continent and its degradation 6, 128 



— changes of level in Labrador 4, 421 



Scandinavia 3. 65 



— continental changes 2, 324 



— deposits, Glacial 3, 134 



