746 



BULLETIN OF THE GEOLOGICAL SOCIETY OF AMERICA 



Perkins, G. H., Reference to 521 



Phillips, John, Reference to 666 



Phillips, P. Lee, Reference to 2 



Photograph Committee, Report of . . . . 703 

 Piedmont in Maryland and Virginia, 

 Character and structural relations 



of the limestones of the 679 



Pixchot, Gifford, Reference to 633 



Pittsburg coal bed, Annual production 



from 335 



— -region, Problem of coal shortage in. 335 



— vein, Coal saved and utilized in ... . 336 

 Pleistocene detritus, Earlv terrace of 



(plate 8) : 248 



— features in northern New York, by 



H. L. Fairchild 635 



— geology in Iowa, Contributors to 



knowledge of 134 



— , Physical geography of the 704 



— problem in Iowa 133-132 



Placenticeras from the Thayer beds.. 138 

 Playa deposits in San Antonio marsh. 249 



Pope, , Reference to 373, 383 



Polarizing microscope, Determination 



of crushed minerals by 708 



Post-Cretaceous geologic history, Sum- 

 mary of 222 



Post-Huronian revolution, Effects of. 156 

 Pre-Cambrian and later river systems, 



Chemical contrast of 161 



post-Huron interval, Chemical 



changes in ocean during 157 



— correlation, Basis of principles of.. 703 



— complex, Location and composition 



of 230 



— fauna 168 



— formations, Limestones and dolo- 



mites of 155 



■ — limestones and dolomites, Origin of. 163 



— terranes, Rivers draining 160 



Predentata, Species of 438 



Pre-Devonian limestones, Summary of 



origin of 167 



Pre-Ordovician limestones, Grain of... 167 

 President, Annual address of the So- 

 ciety's 133-152 



Proboscideans, Aftonian 351-353 



Proceedings of the Twenty-first An- 

 nual Meeting, held at Baltimore, 

 Maryland, December 29, 30, and 

 31, including proceedings of the 

 Twentieth Annual Meeting of the 

 Cordilleran Section, held at Stan- 

 ford University, California, Decem- 

 ber 30 and 31, 1908 ; Edmund Otis 



Hovey, Secretary 608-736 



Proterozoic era, Murchison cited on 



the 513 



-, Sedgwick cited on the 513, 514 



Prosser, A. C, Reference to 547,568 



Prosser, C. S., Reference to 680 



Prodty, , Reference to 537 



Pumice beds in conglomerate of Esme- 

 ralda formation 255 



Pumpelly, R., Reference to 665 



Purpura lapillus, Distribution of 444 



Pyrite mines, Leona heights 707 



Pyroxene, Analysis of 262 



Pyroxenite, Formation of 261-262 



Quaternary deposits of Silver Peak 



quadrangle 247-249 



Quartz-diorite of Silver Peak range.. 252 

 Quartz-monzoxite from Silver Peak 



range, Analyses of 251 



of Silver Peak quadrangle. . . 250-252 



Quartz-moxzonites of South Carolina. 668 



Page 

 Rabaka gorge, Saint Vincent, Figures 



showing 424 



Kansome, F. L., Reference to 171,430 



— , Reference to latites of 257 



Raton coal field, Conglomeratic base of. 363 



— ■ , Erosion and uplift in 364 



, Flora of 366 



— ■ , Key map including 358 



, Location and condition of 



rcoks described in 358-359 



Rathbun, Richard, Reference to 2 



Raymond, C. W., Reference to. 546, 562, 571 



Reinhardt, C, Reference to 389 



Rheinhardt, J., Reference to 2 



Rhyolite lavas, Form and composition 



of 255 



— ridge in Silver Peak region 257 



— sandstones of Silver Peak region . . . 255 



Rhyolite-tuffs, Figures of 229 



Rhyolitic lavas, Analvses of, by 



George Steiger 256 



— — -of Silver Peak range 253 



Red rock 207 



Reid, Harry Fielding, "Geometry of 



faults" 171-195 



— , Paper on faults, published as pages 



171-196 of this volume, by 625 



— ■ mass movements in tectonic 



earthquakes, by 625 



— , Reference to 625 



Report of the Council 609 



Secretary 609 



Treasurer 612 



Editor 614 



Librarian 615 



— • Committee on Geologic Nomen- 

 clature 620 



Rice, W. N., Reference to 661 



Richardson, George Burr, elected Fel- 

 low 617 



— . Reference to 489, 575, 632 



Richmond formation, The fossiliferous. 445 



Rinxe, , Reference to 662 



Rock formations in the Raton field 359-361 

 Rocks, Intrusive granitic 226 



— of the pre-Cambrian complex 226, 



231-238 



Rogers, . Reference to 655 



Rogers, A. F., Minerals from the coast 



ranges of California 707 



— , The polarizing microscope 708 



— . Experiments with a shaking ma- 

 chine 707 



Rogers, H. D.. Reference to 450 



Rogers, W. B., Reference to 450 



Rominger, , Reference to 554 



Roseau valley. Saint Vincent, Figure 



showing 416, 420 



Rosenbusch, H., Reference to 662, 



665, 667 



Rowley, , Reference to 547 



Royal Society of London, Reference to. 410 

 418, 422, 423, 424 



Rtjedemann, , Reference to 526, 



528, 537 

 Russel, I. C, cited on Columbia fields. 210 



— . Reference to 421, 579 



Rutley, , Reference to 662 



Safford, , Reference to 470 



Saint Genevieve county, Missouri, 



Fern Glen beds exposed in 268 



Saint Joe marble, Distribution of . . . . 269, 



323-325 

 — ■ — - — , Table comparing Fern Glen 



fauna with 324 



Saint John, — — , Reference to 401 



