o3S 



BILL. GEOL. SOC. AM. 



Page 



Petroleum Age (The), Reprint from 208 



Petroleum fieldj The Mannington 187 



— , I >rigin of 202 



Pettek, W. H.. Amendment to By-Laws pro- 

 posed by 470 



— , Cited on geology of California 4:;."> 



— , Record of discussion by 160 



Phinmet, A. J., Acknowledgment to. 193 



Pholadomya, New species of 402,405 



Photographs, Report of Committee on 47n 



Pictet. F. •!.. Cited on Paleozoic corals 256 



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



Pinna cuneiformis, Naming of species 4n4 



— expansa, Naming of species 402 



Pinto limestone. Description of. 222 



Pitcaikn, Pleistocene shore lines near 489 



Plains, f.eology of the 519 



Pleistocene, boring in the 150 



— changes of level 65 



— deposits 124, 134 



in England 505 



, Interior 95 



of California 372 



New Jersey 170 



Russia 68 



the Plains 519 



Texas 85 



— (Pre-) gravels of the Mississippi basin 183 



— subsidence 508 



— terraces 4S7 



Pi.k.uromya, New species of 402 



Pliocene echinoid faunas 107 



Pocono sandstone. Oil from the 188 



Potomac flora, Derivation of the 25 



Potsdam sand- tone of Minnesota 335 



Powei.i, J. W.. Donation of photographs by.. 480 



— , Cited on the Klamath mountains M74 



Triassic do),, ,<its 25 



Pribii.of islands (Geology of the); Joseph 



Stanley-Brown ." 496 



PflorEFDiNGS of the Fourth Annual Meeting 

 held at Columbus, Ohio, December 29. 



:;n an. I 31, 1891 : H. L. Fairchild 153 



Summer Meeting held at Washing- 

 ton. August 24 and 25, issl ; H. L. Fair- 

 child 1 



Processes (Peculiar geologic) on the Channel 



islands of California ; L. <•. Yates 133 



PrF.RorENNA, New species of 404 



Ptvchophvllvm, Discussion of genus 278 



Publication, Rules relating to 4G7 



Pumpellt, Raphaei, Reference to, as chief 

 of division 461 



Quartz veins of California 44u 



Quaternary changes of level in Scandi- 

 navia; G. de Geer 65 



Quenstebt, F. A. von, Cited on Ammonites.... 4u4 



Ravenkl, Edmund, Cited on echinoids... lo~>. 107 

 Rectus, Ei.isj'k, Cited on Russian steppes.... 8u 



Kr.n Hill, Hornblende-syenite from 231 



Red Lodge mines 320 



— , Section at 3^7 



Register of the ( lolumbus meeting 522 



Washington meeting 152 



Reid, H. F., Cite,] on Alaskan glaciers 507 



— , Donation of photographs by 478 



Report of the Council 466 



Reusi ii. Hans, Cited on rock structure 515 



Revision of.the genus Chonophyllum 253 



Rrynosa beds. Description of. 229 



Rhabdoceras bed. Description of 398 



— russelli, Naming of species 398 



Rhacophvli.ites, New species of 4117 



Rhynconella, New species of. 4114 



— solitaria, Naming of species 398 



R10 Grande (Notes on the geology of the 



valley of che middle) : E.T. Dumble 219 



Page 



Robertson, l. B., Collections by I in 



Robinson bed-. Description of. ::74 



Rock species from Maine and New Hamp- 

 shire 231 



Rocky Fork coal fields 321, 329 



Roi kv mountain.-, Structure of southern 86 



Roemer, F., cited on Texas deposits :i2 



Rogers, H. D., cited on rode structure 208 



Seohthus 35 



Rogers, W. B., Cited on Scolithus 32 



— Triassic plants 24 



RohON, I., Cited on rish remains 59,169 



Romingkr, Karl, Quoted on Paleozoic 



corals 255 



— . Specific name suggested by 274 



RosENKtsc 11. II., cited on biotite 2:10 



eleolite-syenite 81. 236 



theralite. 450 



— . Tribute to 456 



R01 11, Justus, < lited on rock composition 19 



Rothplf/iz, August; On the Permian, Tri- 

 assic and Jurassic formations in the 



Hast Indian Archipelago 14 



Ion ri. Formations of 14 



Roumania, I>inotherium in 81 



Ruprkcht, F. J.. Cited on "black earth" 69 



Russell, 1. C, Acknowledgments to 396 



— , Cited on Alaskan glaciers 507 



— California geology 371 



glacial deposits 138 



— , Collections by 15:;. 395 



— . Dedication of species to 398 



— . Discussion of Iroquois shore lines by 4:i4 



— , Photographs by '. 480 



— , Record of discussion by 193 



— , Title of paper by 165 



Russia, " Black earth" of southern 68 



Rutland, Geology of 515 



Saffobd, J. M : Note on the Middleton for- 

 mation of Tennessee, Mississippi and 



Alabama 511 



— ; The pelvis of a Mcgalonyx and other 



bone- from Big Bone cave, Tennessee... 121 



— . Title of paper by 121 



Saint Ei.ias mountains. Structure of 495 



Sainte Genevieve, Section at 2s7 



Saint George island, Geology of 498, 499 



Saint Lawrence limestone, Definition of 342 



— valley, Glacial lakes of 486 



Saini I. "tis limestone, Definition of 294 



— , Section at 286 



Sainte Mary, Section at 2S7 



Saint Paul island, Geology of 496 



— , Section at 354 



Saint Peter sand-tone. Definition of. 350 



Salisbury, R. D. : Certain extra-Morainic 



drift phenomena of New Jersey 173 



— . Cited on drift 136 



the driftless area 332 



— ; On the northward and eastern extension 



of the pre-Pleistocene gravels of the 



Mississippi basin 183 



— , Title of paper by 134 



— , Record of discussion by 133 



Salomon, Alexander, Cited on thermometa- 



morphism 16 



Salter, J. W., Cited on Scolithus :;."> 



S \ s in m i.hf. Section at 314 



Sandstone dikes in western Nebraska; Rob- 

 ert Hay 50 



— . Purity of the Saint Peter ''"'1 



San Miguel beds, Description of 224 



Sarukson, F. W.. < lited on the Rower Silurian 358 

 —, Finding of Saint Peter fossils by 352 



— (C. W. Hall audi: Paleozoic formations of 



southeastern Minnesota 331 



— . Title of paper by 164 



Saukr, A., cite. i on thermomet imophism.... 16 

 Scandinavia, Changes of level in 65 



