INDEX TO VOLUME 32 



487 



Page 



364 



.Si'RAY impressions 



Status of our linowledge of Mesozoic 



pathology ; R. L. Moodie 130, 321 



Stauffee, C. R. ; Devonian of Minne- 

 sota 34 



Steinheim basin, Cryptovolcanic struc- 

 ture of the 74 



Stevenson^ J. J., Telegraphic greetings 



to 68 



StocKj C. ; Late Cenozoic mammalian 

 remains from the Meadow Valley 

 region, southeastern •Nevada 146 



— , Secretary ; Minutes of the Tenth An- 

 nual Meeting of the Pacific Coast 

 Section of the Paleontological So- 

 ciety 145 



Stockdale, p. B., and H. P. Cleland ; 

 Experiments on the formation of 

 eskers and kames 57 



Stkatigraphic problems in the Colum- 

 bia Valley between Snake River 

 and Willamette River ; J. H. Bretz. 36 



Stratigraphy and diastrophism of west- 

 ern Newfoundland ; Charles Schu- 

 chert and C. O. Dunbar 38 



— of the Moose and Albany rivers of 



northern Ontario; M. Y. Williams. 39 

 Structural failure of the lithosphere ; 



C. K. Leith 42 



— features of Indiana; Stephen Visher. 27 

 Studies of sedimentation in the univer- 

 sities of the central part of the 

 United States ; W. H. Twenhofel. . . 20 



eastern part of 



the United States; E. S. Moore. . . 19 



— • western part of 



the United States ; G. D. Louder- 

 back 20 



Support of Geological Magazine 16 



Sweet Grass Hills, Montana ; J. F. 



Kemp and P. Billiugsley 437 



Symposium on criteria and methods em- 

 ployed in paleontologic research. . . 131 



Syngenetic origin of concretions in 



shale ; W. A. Tarr 26, 373 



Taler, S. ; Great fault troughs of the 



Antilles 47 



Talcs, Hydrous 165 



Tarr, W. A. ; Cobalt-nickel-copper-lead 

 deposits of Fredericktown, Wiscon- 

 sin 66 



— - ; Mineralogy of the tourmaline mine 



near Canyon City, Colorado 164 



— ; Syngenetic origin of concretions in 



shale 261, 373 



Taylor, F. B. ; An objection to the con- 

 traction hypothesis as accounting 



for mountains 33 



Texas, Llanoria — the Paleozoic land 



area in eastern Paleozoic 40 



— , Permian of 134 



— , Regional structure in north-central . 90 



— . Solitario uplift in 46, 417 



Tertiary collections in the West 137 



— ■ deposits of the west coast 90 



— — ■ , Marine 147 



■ — history of the lower Snake River val- 

 ley, southwestern Idaho ; J. P. Bur- 



walda 71 



The greater earth ; T. C, Chamberlin 46. 197 

 Thibl, George, and W. H. Emmons ; 

 Results of experimental work on 

 the accumulation of oil in sands. . . 15S 

 Thiessen, R. ; Origin and composition 



of certain oil shales 72 



Page 



Thomas, A. O. ; Small fossils from the 



Lime Creek shales 130 



Tiio.Aisox, B., and A. L. PARSo^fs ; Min- 

 cralographic study of animikite and 

 macfarlanite from Silver Islet, Lake 

 Superior 105 



Thwaites, F. T., and W. II. Twenho- 

 fel ; Windrow formation : an up- 

 land gravel formation of the drift- 

 less and adjacent areas of the upper 

 Mississippi Valley 293 



Till, Microscopic sections of 59 



Tourmaline mine near Canyon City, 



Mineralogy of 164 



Trask, p. D. ; a study of the fauna and 

 stratigraphy of the Briones forma- 

 tion of middle California 145 



Treasurer-'s report 9 



. Paleontological Society.. .' 123 



Triassic beds of western Texas 136 



Trigonin.e of the Pacific coast of North 



America ; B. L. Packard 148 



Trilobites, Criteria for species, phylog- 



enies, and faunas of 131 



• — from Upper Cambrian 128 



— , Phylogenies and faunas of 349 



Troxell, E. L. ; New kind of type speci- 

 men 128 



— ; Relationship of the Great Basin and 



Great Plains faunas 136 



True sphere of petrology ; C. P. Berkey. 72 



Taylor, F. B. ; Some points in the me- 

 chanics of arcuate and lobate moun- 

 tain structure 31 



TuTuiLA, Samoa, and the coral reef 



problem; R. T. Chamberlin 28 



Twexhofel, W. H., and E. C. Ed- 

 wards ; Occurrence of basal con- 

 glomerates 40 



F. T. Thwaites; Windrow forma- 

 tion : an upland gravel formation 

 of the driftless and adjacent areas 

 of the upper Mississippi Valley. . . . 293 



— • ; Impressions made by bubbles, rain- 

 drops, and other agencies 359 



— ; Preparation of a treatise on sedi- 

 mentation 24 



— ; Rain-drop impressions and marks of 



somewhat similar appearance 27 



— ; Studies of sedimentation in the uni- 

 versities of the central part of the 

 United States 20 



21 



Udden, J. A. ; Chronology In geology. . . 



— ; Some problems of sedimentation 

 studies suggested by State geolo- 

 gists 20 



Ulrich, E. O. ; Age determination of 



faunas 132 



United States, Physiographic diagram 



of the 71 



Upper Cambrian trilobites ; O. T. Walter 128 



Utah, Peneplainal aflanities of high pla- 

 teaux of 56 



Valley gravels of northwestern Iowa ; 



.L H. Lees 49 



Vancouver region, Pleistocene read- 



vance of ice-sheets in 51 



Vaughan, T. Wayland; General state- 

 ment on the work of the Committee 

 on Sedimentation, Division of Geol- 

 ogy and Geography, National Re- 

 search Council 19 



XXXV— Bull. Geol. Soc. Am., Vol. 32, 1920 



