l<i .I.STANLEY-BROWN INDEX TO VOLUMES 21 TO 30 



Page 

 Appalachian Mountain region, Ancient delta deposits from 24, 4U6 



— — — , Detailed succ'es.sive deposits in 24. 410 



— mountains of Maryland ; Charles S\Yartz 21, 24 



— oil field ; M. L. Fuller 28. 156, 617 



.Future of 28.^47 



, Map of 28, 619 



— , Structure of 28. 635 



— , Wells drilled in 29. 06 



— peneplains discussed by R. A. Daly 28. 128 



— Frank Leverett 28, 128 



— province, Ages of peneplains of 29. 575 



— region, Silurian deposits of the 28. 202 



— regions, Pennsylvania strata in 29, 97 



— , Piedmont terraces and post-Jurassic history of the northern .... 24, 70, 688 

 Appalachians, Present and future of natural-gas fields in the northern. 



21, 34, 788 

 Apparent limits of former glaciation in the northern coast ranges of 



California ; R. S. Holway 25. 120 



Appointment of Auditing Committee of the Paleontological Society. . . 29. 125 

 Aqueotjs habitats, A classification of ; Marjorie O'Connell 26. 159 



— sand types. Description of 21, 6.32-6.38 



Arabia, Petroleum supply of 28. 614 



Arabian desert, Red sands of 21, 643 



Arapahoe and Laramie, Erosion interval between 25, 347 



— beds 25, 325 



— flora 25, 331.333 



Arch Creek natural bridge, near Miami, Florida, Description of and 



view showing 21, 331 



Archxeoscyphia vnnganese (Billings) obtained by James Richardson from 



Romaiue island 21, 687 



Archean of Brazil 30, 203 



Archipel,\go, Map of East Indian 21, 215 



Arcidiacono, S., cited on Stromboli 28, 256 



Arctic Ocean, Reference to climatic changes in 25, 482 



— . Opportunities for geologic work in far 29. 85-86 



Arctowski, H., cited on changes in temperature distribution 25. 5-48 



climatic changes 25, 482 



- — sun-spots' effect on solar heat 25. 488-489, 492 



■ temperature movements 25, S3 



Arcuate mountains. Mechanics of formation of 25, 30 



Abenig shales 27, 574 



Argentina, Fossil deer from 27, 153 



— , Glaciation in 25, 31 



— , Petroleum supply of 28, 612 



Arid and humid initial conditions. Contrasted characteristics of.. 23,543-548 



^ moist topographic juvenility. Contrasted features of 23, 548-554 



— climate. Deflative scheme of the geograpliic cycle in an 23,49, 537-562 



, Peculiarities of 21, 568 



