INDEX TO VOLUME 26 



Page 



Academy of Natural Sciences of Phila- 

 delphia, Pennsylvania, Twenty-sev- 

 enth Annual Meeting of the Geo- 

 logical Society of America held at. 5 



, Vote of thanlis to ... . 110 



Acadian Triassic ; Sidney I'owers 93 



Adams, F. D., cited on pressure on cylin- 

 ders of granite 187 



— , Memorial of Alfred Ernest Barlow 



by 12 



ADAPID.E and other Lemuroidea, Obser- 

 vations on ; W. K. Gregory 153 



— • Primates, On the relationship of 



the Eocene Lemur Notharctus to 

 the 419 



Affinities of Hyopsodus ; W. D. Mat- 

 thew .• 152 



Africa, Sauropoda and Stegosaurs of 



Tendagura of German East 326 



A(;assiz, a., a naturalistic model of a 

 topographic type lirst introduced 

 into an American museum by SO 



— , Keference to views on coral reefs b.y. 78 



Agassiz. Louis, cited on coralline alga>. 60 



Aoi: of tlie IJed Beds of western Wyo- 

 ming 229 



AiKv, , cited on hypothesis of crust 



of the earth 178 



Akei:ite (Hypersthone syenite) of Blue 



Kidge region, Mrginia 82 



Alabama, Crystalline marbles of 104 



AMiFUTA Belly Kiver beds ciiuivalent to 

 .(udith liiver Ix'ds of I)()g Creek and 

 Cow Island, Montana. Evidence 

 proving 149 



Ai.DEN, \V. C., Discussion of geological 



liistory of the Bay of Kundy by. . . 95 



Alkxaxduian rocks of northea.steru Illi- 

 nois and eastern Wisconsin ; T. E. 

 Savage 95, 155 



Ai.c.K of the Ordovician iron ores of 



Wabana, Newfoundland, Fossil.... 148 



Ai,<;al and bacterial deposits in the AI- 

 gonkian .Mountains of Montana, Oc- 

 currence of ; C. I). Waleott 148 



Algonkian Mountains of .Montana. Al- 

 gal and bacterial deposits in 148 



Amkhican Association for the Advance- 

 ment of Science, Address by J. S. 

 Dlller, retiring Vlce-I'resident of 

 Section E of the Ill 



, Atniiation of Cor- 



dilleran Section witli 132 



— Scenic and Historic Preservation So- 



ciety, ciisiodian of .Tohn Boyd 

 Thacher I'ark '. . 110 



— Social Science Association, "Geo- 



graphic sculpture" lirst honored in 

 this count ry by 80 



— 'I'riassic invertebrate faunas and 



their relation to those of Asia and 



I'lurope 412 



Ami. H. M., Discussion of classification 



of a<|Meons liabilats by 158 



— , ICemarks on crustal movements in 



r^ake lOrie region by 67 



evidence of recent subsidence 



on the coast of Maine by 92 



glacial erosion by 73 



the origin of thick salt and 



gypsum deposits l>y 104 



Analyses of obsidian from Iceland, 



Tables of chemical 260 



Page 



Analysis, LithophysiB of the obsidian. 259 



Annual dinner of Cordilleran Section 

 at the Faculty Club of the Univer- 

 sity of Washington, Seattle 138 



— Society at Hotel Walton 104 



Anticyclonf.s above continental gla- 

 ciers. New evidence of the existence 

 of, axed ; W. H. Hobbs 73 



Anthozoa and the systematic position 

 of Paleozoic corals, Evolution of 

 the 157 



Aqueous habitats, A classification of ; 



Marjorie O'Connell 159 



Akid erosion, A measure of ; Charles 



Keyes 404 



Arizona, Bajadas of the Santa Cata- 



lina Mountains 391 



Arnold, Ralph ; Correlation of the 



Lower Miocene of California 415 



— , Excursion of California Meeting, 



August 14, 1915, in charge of 417 



Arundel formation. Reptiles of 337 



Aplodontia group. History of ; W. P. 



Taylor 417 



Asia and Europe Triassic invertebrate 

 faunas and their relation to the 

 American 412 



Ashley, G. II. ; I'hysiographic study of 

 the Cretaceous-Eocene period in the 

 Rocky Mountain front and Great 

 Plains provinces 105 



Asphalt beds of McKittrick, California, 

 Occurrence of mammal remains in 

 the 167 



Atlantic and Gulf Coastal Plain, Cre- 

 taceous-Eocene contact in the 168 



Atwood, W. W. ; Relation of physio- 

 graphic changes to ore alterations. 106 



— , Speaker at annual dinner 104 



Auditing Committee of the Geological 



Society 11 



I'aleontologlcal Society 146 



, Report of 87 



Bacterial and algal deposits in the 

 Algonkian Mountains of Montana, 

 Occurrence of; C. D. Waleott 148 



Bain, H. F.. elected Chairman of Cor- 

 dilleran Section 131 



I'.a.iadas of the Santa Catalina Moun- 

 tains, Arizona; C. P. Tolman, .Tr. . 301 



Baker, , cited on interglacial de- 

 posits 2.M 



— quoted on the Fleming of the Nava- 



sota region 460 



r.ARP.AGALLO. A., and D. CAitiso, Depth 



of Etna crater measured by 3.S.'! 



I'.ARLfiw. Alfred Ernest, Bibliogiaphv 



of ■. 1.-) 



-. Memorial of i:! 



. I'liotcjgraph of 1 1' 



Bascom, F. ; Magmatic assimilation. . . . K2 

 - ; Pre-Caiubriau igneous i-ocks of the 



Pennsylvania riedmoiit .si 



liAsic rocks of Rhode Island : their 

 con-elation and relalionsliips ; A. C. 

 Hawkins and C. W. Brown 92 



liAsi.v range faulting In (he nortlivvest- 

 ern oart of the Great Basin; <!. D. 

 I.ouderback 13s 



ItAsiNs within the haniada of the 



Libyan desert. Origin of 396 



(485) 



