140 J.STANLEY-BROWN INDEX TO VOLUMES 21 TO 30 



Page 



Iceland, Alteration of land su!i"ace since ire recession in 21, 718 



— , Area of lowland coastal strips of 21, 717 



— , Basalt formation bedrock in north 21. 718 



— , Condition dnring the Glacial epoch in 21. 718 



— . Elevation and composition of 21, 717 



— , Features of valley glacier erosion in 21. 710-723 



— , Glacial action in New Zealand and Alaslva comjiared witli that in. . 21, 720 



— , Glaciers and volcanoes dominant Keological features of 21, 717 



— , Groups of mountain glaciation in 21. 718 



— , Habitation in and barrenness of 21, 717 



— , Names of master valleys in north 21. 720 



— , Obsidian from Ilrafntinnulu-yggnr 21. 32. 784 



; its litlioi)]i.vsa^ and markings 26, 255 



— , Pillow hivas of 25. (iOS-GlO 



— , Signs of glaciation in the upland surface of nortliern 21, 724 



— , Some effects of glacier action in 21, 20, 717-730 



— . Soundings l\v the Danisli government in 21. 718 



— , Sunnuary of effects of glacial action in 21, 727 



— , Thickness of formation in north 21, 718 



— , Upland surface in 21, 718 



IcKES, E. L. ; Contributicm to the geology of eastern Oregon 21. 791 



Idaho, Bannock tlirust, a major fault in southeastern 24. 50, 675 



— , Early glaciation in northern 23. 530 



— , Eocene in 29. 89 



— formation. Fauna of 29. 162 



— , I'illow lavas of 25, 617 



— , Stratigraphy of Beckwith and Bear River formations in 27. 70 



— , Structural features of southeastern 24, 59, 675 



— , Tulare Pliocene fauna of 29. 152 



— , Valleys of Clearwater country 23, 532 



Idaho- Wyoming, Geologic map of Wayan quadrangle 27, 65 



iDDiNfiS. J. I*., Analysis of the litlin]ihys;e of Obsidian Cliff, Yellowstoue 



National Park 26. 2.59 



— cited in discussion of alkaline rocks 21. 88 



on allanite 28. 465 



igneous magnnis 29, 458 



magmatic assimilation 25, 261 



monzonite and granodiorite 27, 204 



pillow structure 25, 635 



spherulites or lithophysa' of Yellowstone Nation.nl P.ii-k 26,255 



volcanic phenomena 28. 273 



- — , Discussion of New Jersey gneisses by 25, 45 



pillow lava by 25, 33 



— ; Fi-acturt' valle.v s.vstem. Reference to 22, 153 



— : Geology of the Yellowstone N.ational P;ii-k. licference to 22. Ill 



— , Igneous rocks, 1909, Reference to 21. 152 



— , Memorial of Arnold Hague by 29, 35 



— .Objects and methods of petrographic description discussed by 24. 76 



