INDEX TO VOLUME 32 



481 



Page 



Cuba, Jurassic fishes collected by Bar- 



num Brown in 136 



— , Orieutite from 165 



CuPRESSiNOXYLA of the Mesozoic ; B. C. 



Jeffrey 135 



Cycadlike leaves from the Permian of 



Texas ; A. C. Noe 134 



DA Costa Skxa, J. C, Memorial of . . . . 16 



Daly, R. A. ; Postglacial changes of level 



in Newfoundland and Labrador ... 53 



Decreasing salinity of the Pleistocene 

 Champlain Sea going southward, as 

 shown by the character of the 

 fauna, with a brief discussion of 

 the Pleistocene fauna of the Hud- 

 son Valley and its significance ; W. 

 Goldring 132 



Demonstratiox material in geology ; 



II. P. Cleland 74 



Desmatosiichiis stiprensis from the 

 Dockum Triassic beds of western 

 Texas ; E. C. Case 136 



Devonian black shales of western New 



York ; G. H. Chadwick 91 



— of Minnesota ; C. R. Staufifer 34 



Missouri ; E. B. Bronson 35 



Diamonds of Pike County, Arkansas ; 



G. F. Kunz 165 



DiASTROPHisM, Groundwork of the 



earth's 46 



— of the earth 197 



Dinner, Annual 68 



DocKUM Triassic beds of western Texas 136 

 Doctrine of the zone of flow chal- 

 lenged ; W. H. Hobbs 32 



Drift in northern Illinois 86 



Drip impressions 363 



Dunbar, C. O., and C. Schuchert ; 

 Stratigraphy and diastrophism of 

 western Newfoundland 38 



Eakle, A. S. ; Further notes on eakleite 166 

 — ; Jurupaite : A new calcium magne- 

 sium silicate from Crestmore, River- 

 side Count.v, California 166 



Eakleite, Further notes on 166 



Earth, Framework of the 48 



— , The greater 46,197 



Earth's diastrophism. Groundwork of 



the 46, 197 



Economic geology. Bibliography of.... 158 



.Relation to general principles of 



geology of 158 



Editor's report 11 



Edwards, E. C, and W. H. Twenho- 

 FEL ; Occurrence of basal conglom- 

 erates 40 



EiiLERS, G. M. ; Niagaran rocks of the 



northern peninsula of Michigan... 129 



Election of Auditing Committee 12 



Correspondent of Paleontological 



Society 126 



Fellows 14 



officers for 1921 13 



of Mineralogical Society of 



America 163 



representatives on the National 



Research Council 14 



Emmons, W. H., and Geo. Titiel ; Re- 

 sults of experimental work on the 



accumulation of oil in sands 158 



Empire formation of Oregon, Correla- 

 tion of 147 



Page 



Eskers, Experiments on formation of . . 57 



Etna, Augite from 164 



Evidences of an unconformity within 

 the pre-Cambrian of the Black Hills 

 of South Dakota ; J. J. Runner. ... 37 



Evolution of arcuate mountains ; W. H. 



Hobbs 30 



— , phylogeny, and classification of the 



Mastodontoidea ; H. F. Osborn.... 327 



Proboscidea ; H. F. Os- 

 born 136 



Experiments on the formation of eskers 

 and kames ; H. F. Cleland and P. B. 

 Stockdale 57 



Extinct animals. Climatic environment 



of 333 



Fault troughs of the Antilles 47 



Faunas, Age determination of 132 



— of South America, Origin of 187 



Fellows, Election of 14 



Fossil faunas. Methods of determining 



the relationships of marine inverte- 

 brate 131, 339 



— fishes from Jurassic of Cuba 136 



FossiLiFEROus concretions 381 



Fossil plants, Determination of climate 



by means of 131, 353 



Fossils, Classification of reptilian 136 



— from the Lime Creek shales 130 



• South America 187-196 



the Windrow formation 302 



— , Mastodontoidea 327 



— , Middle Cambrian Crustacea 127 



— , Primitive cephalopods 127, 315 



— , Schwagerina and their stratigraphic 



significance 127 



— , Trilobites 349 



— — from Upper Cambrian 128 



Field description of sediments ; M. I. 



Goldman 24 



— study of the shapes of river pebbles ; 



C. K. Wentworth 89 



Final stages in the physiographic evo- 

 lution of the San Juan Mountains ; 



W. W. Atwood 70 



Flooding of oil wells bv fresh water ; 



T. C. Brown 67 



FosHAG, W. F., and E. T. Wherry ; 



Hydrous talcs 165 



— ; Origin of the colemanite deposits of 



California 165 



Framework of the earth; P. McKellar. 48 

 Franklin Furnace, New Jersey, Hol- 



denite and cahnite from 166 



Eraser River, Sedimentation in delta of 52 

 Further notes on eakleite : A. S. Eakle 166 

 Futtire of mineralogy in America; 



Presidential address by E. H. Kraus 164 



Gas. (See Natural gas.) 



General statement on the work of the 

 Committee on Sedimentation, Di- 

 vision of Geology and Geography, 

 National Research Council ; T. Way- 

 land Vaughn 19 



Geography in the TTnited States. . . 44, 197" 



Genus Araucarioxylon in tlie American 



Cretaceous: E. C. Jeffrey 135 



— ■ Sequoia in the Mesozoic ; E. C. Jeff- 

 rey ] 34 



Geologic history of the Corocoro copper 

 district, Bolivia ; J, T. Singewald, 

 Jr., and E. W, Berry 60 



