4SG 



J^,ULLETIX OF THE GEOLOGICAL SOCIETY OF AMERICA 



340 

 1G5 



no 



92 



13S 



Page 

 Publications dealing- with Novtli Amer- 

 ican geology and geography ; A. II. 

 Brooks •-^43 



Rai.\-drop impressions and marks of 

 somewhat similar appearance ; W. 

 II. Twenhofel 



R.\iN-DROPSj Impressions made by 



Rancho La Brka, Peccary from 



Raymond, P. E. ; Criteria for species, 

 phvlogenies, a.nd faunas of trilo- 

 bites 131, 



Refractive indices of lifjuids. Method 

 of determining 



Regional structure in north-central 

 Texas ; B. II. Sella rds 



Register of the Chicago meeting 



of the I'aleontologieal So- 

 ciety 



Rbid, H. p. ; Orogenic forces 



Relation of economic geology to the 

 general principles of geology : R. A. 

 F. Penrose. Jr 



Relationship of the Great Basin and 

 Great Plains faunas : E. L. Troxell 



Reptiles, Classiticntion of the 



Report of the Auditing Committee. . 4i 



of Paleontological Society . . 



the Council 



of the Paleontological So- 

 ciety 



Editor 



Secretary 



Treasurer 



Results of experimental work on the 

 accumulation of oil in sands ; W. H. 

 Emmons and Geo. Thiel 



RiGGS, E, S. : Methods of creating pop- 

 ular interest in exhibits of fossils . 



Rhode Island, Hematite crystal from 

 Manton 



Rock deformations in western Vermont 



Rocks of Kohala and Kea, Hawaii ; H. 

 S. Washington 



Runner, .J. .1. ; Evidences of an uncon- 

 formity within the I're-Cambrian of 

 the Black Hills of South Dakota. . 



— ; Origin and history of I^ake Chelan . 



RuEDEiMANN. R. : Observations on the 

 mode of life of primitive cephalo- 

 pods 127, 



Samoa, Coral reef problem of 



San Francisco Bay region. Diflierential 

 movements in 



San .Juan Mountains, Physiographic evo- 

 lution of 



Sayles, R. W. ; Microscopic sections of 

 till and stratified clay 



Schists, On origin of crystalline 



Scientific by-products of applied geol- 

 ogy ; G. O. Smith 



Schuchert, C, and C. O. Dunb.\r : 

 Stratigraphy and diastrophism of 

 western Newfoundland 



— ; Methods of determining the rela- 



■ tionships of m.irine invertebrate 



faunas 131, 



ScHWAGERiNA, Stratigraphic signiticance 

 of 



Secretary's report 



— ■ — , Paleontological Society 



Sederholm, .T. J. ; Pre-Cambrian prob- 

 lems 



Sediments, Field description of 



1.58 



136 

 136 

 , 43 

 1.34 

 6 



122 



11 



6 



9 



1.58 

 132 



165 



88 



58 



37 



87 



315 



28 



45 



70 



59 

 34 



158 

 38 



339 



127 



6 



122 



44 

 24 



Page 



Sedimentation. Canadian studies in... 25 

 — , Chemical and physical researches on 23 

 — in the recent delta of Eraser River. 

 British Columbia, Canada ; W. .\. 



.Fohnston 52 



— , Studies of 19. 20 



— , Treatise on 24 



— , Work of Committee on 19 



SiOLLARD.s, E. H. : Regional structure in 



north-central Texas 00 



Sena, Joaquim Candido da Costa. Me- 

 morial of 16 



Sequoia in the Mesozoic I'-'A 



Shale, Concretions in 27 



— . Origin of concretions in 373 



Shales of western New York. Devonian 



black 91 



Shangoinah Island, Calcite from 165 



Shannon, E., and D. F. Hew-ett : Ori- 



entite from Cuba 165 



Shoreline migration and recent coordi- 

 nate changes in bottom topography 

 at Point Pelee, Lake Erie ; E. M. 



Kindle 57 



Significance of crvstal habit ; E. T. 



Wherry 165 



the relation of proboscidean re- 

 mains to the surface of Nebraskan 

 gumbotil, near Osceola, Clarke 



County, Iowa ; G. F. Kay 80 



Silver Islet, Animikite and macfarlan- 



ite from 165 



Si.MPLE method of determining refrac- 

 tive residues of liquids with the 

 microscope : O. Von Schlichten .... I(i5 

 Singewald, .1. T.. .Ir.. and E. W. Berry ; 



Age of the Andes 39 



; Geologic history of the Coro- 



covo copper district, Bolivia 67 



Skutterndite from Cobalt, Ontario... 165 

 Slawson, C. D. : New simplitied method 



for drawing crystals 165 



Small fossils from the Lime Creek 



shales ; A. O. Thomas 130 



S.mith, G. 0. ; Scientiflc by-products of 



applied geology 158 



S.mith, W. Du Pre; Physical and eco- 

 nomic geography of Oregon 146 



S.MOJCER, Annual ~. . . . 42 



Snake River valley, Idaho, Tertiary his- 

 tory of 71 



Society of Economic (Jeologists, Affilia- 

 tion with tbe 43 



. Proceedings of 157 



SoLiTARin uplift. Presidio - Brewster 



counties. Texas: S. Powers.... 46.417 

 So.ME conclusions in regard to the ori- 

 gin of gypsum : F. A. Wilder. . . 67, 385 



— geologic features of the Beartuoth 



Mountains, Montana : Arthur Bevan 29 

 points in the mechanics of arcuate 



and lobate mountain structure ; F. B. 



Taylor • ■ • ^1 



problems of sedimentation studies 



suggested by State geologists : .1. A. 



ndden ■ • ^O 



— structural features of Indiana : ^A . N. _ 



Logan ■ • • • •'•' 



suggestive mineral characters ; II. S. 



Washington 164 



South American faunas l^l 



, Origin of lo < 



South Dakota. Unconformity in Black 



Hills of •''''■ 



Spencer, .T. N. : Preglacial slope and 



crest of the Niagara escarpment.. _ 5.> 

 Splash impressions 364 



