734 



BULLETIN OF THE GEOLOGICAL SOCIETY OF AMERICA 



P; ge 

 os . Chester A.. Sediments of Cen- 

 ter Counrr. Pennsvlvania, discussed 



by ' 112 



Refractive indices with the micro- 

 scope. Media of high refraction and 

 some standard media of lower re- 

 fraction for the determination of : 



H. E. Merwin 51. 685 



-teb of the Cordilleran Section. 



1912 



New Haven Meeting. 1912 7 7 



Reid. H. F.. Bannock thrust, southeast- 

 ern Idaho, discussed by 50 



— : Displacements of triangulation sta- 

 tions in Sumatra due to an earth- 

 quake in 1S*2 51. 676 



— . Effect of high pressure on solid sub- 

 stances discussed by ~ 



— . Glacial cirques discussed by 51. 6TS 



— . Report of Committee on Nomencla- 

 ture of Faults, chairman 49. 163 



— . The beginnings of Lake Agassiz dis- 

 cussed by 71 



Repobt of Auditing Committee 69 



Committee on Geological Nomen- 

 clature 49 



Photographs 4S 



the Nomenclature of Fau' - - 



Harry Fielding Reid. chairman. 4 



Editor 7 



Secretary 3 



the Council 2 



Treasurer 5 



Reptiles. Homology of the "Lacrimal" 

 and of the "Alisphenoid" in recent 



and fossil 241-246 



— . Prefrontal, lacrimal, and adlacrimal 



in 241 



Reptilian osteology. Mutability of 



names in 241 



Resolution- concerning reprinting of 

 D. S. Geological Survey Bulletin on 



names of geologic formations 49 



Rice, William North. Address at Dana 



centenary : Dana, the man 56 



— I Limatic investigations on geological 



theories discussed by 



Richards, R. W.. and G. R. Mansfield : 

 Bannock thrust, a major fault in 

 southeastern Idaho 



: Structural features of south- 

 ern Idaho 



Richmond formations of the provinces 

 of Ontario and Quebec in Canada : 



A. F. Foerste 110 



Heinrich : Recent changes in the 

 -.Ikan Glae: 71. 696 



River deposits of North America. Allu- 

 vial fan. etcetera 400-406 



Rock-boring shells. Preliminary inquiry 

 into the geological significance of": 

 Albert L. Barrow. . .« 130 



Rocks from middle western Virginia. 



Chemical analyses of igneous dike.. 331 



— in central wpstern Virginia. Petrol - 



of igneous 



Rock of Starks Knob. Age of igneous.. . 349 

 Rogers. Austin F. ; Gypsum and anhy- 

 drite from the Ludwig mine. Lyon 



County. Nevada 



— . Iron-ore deposit at Barth. Nevada. 

 discussed by 



— : Validity of the law of rational in- 



dices of crystal faces » 93 



Roots in the underclavs of coal : David 



White " •,. 114. 719 



Rtckman, John H. : Evidence indicat- 

 ing an unconformity at the base of 

 the Tamiosoma zone in the 

 linga oil fields. California 



Page 



Rcedemaxn, Rudolph, Sediments of 

 Center County. Pennsylvania, dis- 

 cussed by 112 



— ^-ssion of Paleontological Society. 

 December 31. 1912. presided over by 

 Vice-President 108 



r Lawrence Valley and the Lake 

 region. Post-Glacial earth move- 

 ments in 74 



Salina beds of Pennsvlvania and New 



York 488 



Salt deposits. Origin of 490 



. the Eurypterids and the Shawan- 



gunk conglomerates 



— water of the Mexican oil fields 



SAiiSr-TTiT. B. D., elected Second Viee- 



Presidenr 9 



Sandstokks of the delta deposits of 

 North America. Bavs. Clinch. Long- 

 wood, and Keefer 446-482 



Sandstone of the San Jose and Mount 



Hamilton quadrangles. Thickness of 96 



— . Wind-blown 112 



and Mount Hamilton quad- 

 rangles. General geology of 96 



. California. Trachvtic perlite from 



Lone Hill, near 



'ablo formation on the north side 

 of Mount Diablo. California : Bruce 

 L. Clark 130 



Sapropelic hypothesis of the origin of 

 coal. Inadequacv of the : Edward C. 

 Jeffrey ' 73. 706 



Saskatchewan gravel. Dawson and 



McConnell 



r. EL; The Alexandrian series 

 in Missouri and niinois — srratigra- 



phv and paleontologv : Part I 111. 



351 "" 



Schuchebt, Charles • Alpheus Hyatt 

 and his principles of research dis- 

 cussed by 105 



— , Cuban fossil mammals discussed bj 



— , Ozarkian and Canadian systems dis- 

 cussed by 51 



— quoted on the Brassfield (Ohio Clin- 



ton i limestone 352 



— Siinarump conglomerate discussed 



by . : 



— : The Cataract : A new formation at 



the base of the Siluric in Ontario 

 and New York 



Scorpions and spiders — Paleozoic Arach- 



nida " 106 



Scott. W. B.. Pyrotherium Beds of 

 Patagonia discussed by 



— : Restoration of Tertiary mammals. 



— : The permanence of the continents 



and oceans 106 



Sediments of Center County. Pennsyl- 

 vania. Upper Cambrian and Lower 

 Ordovician 112 



Secretary. Report of E. O. Hovey 3 



Skllabds, E. H. : Origin of the hard 

 rock phosphates of Florida . . 



M of Sunday. December 29, 1912, 

 Dana memorial 



Sierra Nevada bedrock comp: 



eral features of the structure of 

 the 98 



Silica. The various forms and mutual 

 relations of: Clarence E. Fenner.. 



53. 681 



Silurian section of England. Brachio- 

 pods of the Edmunds fauna in thp 



Siluric in Ontario and New York. The 

 Cataract : A new formation at the 

 base of the 107 



